数码天地 今日: 0|主题: 4756|排名: 52 

最后发表： berlindut
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长知识..

最后发表： NEWGAY
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看看xblues的帖子

最后发表： xblues
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我的心i7选用的就是这款主板，我真是英明啊！

原文可见：
http://www.xbitlabs.com/articles/mainboards/display/ga-x58-ud4p.html


Gigabyte GA-EX58-UD4P: Super Functional Mainstream Mainboard      [05/29/2009 06:30 PM | Mainboards]
by Doors4ever             Aton of additional controllers, a sophisticated chipset cooler and highprice are totally not necessary for successful overclocking and highperformance. Read about a mainboard that has it all despite being amainstream product.
          Table of Contents     

• Package and Accessories
• PCB Design and Functionality
• BIOS Setup
• Work Specifics
• Testbed Configuration
• Overclocking Experiments
• Performance in Nominal Mode and During Overclocking
• Power Consumption
• Conclusion

     Real-time Pricing and Availability:     GIGABYTE GA-EX58-UD4P Core i7/ Intel X58/ DDR3/ CorssFireX & 3-Way SLI/ A&GbE/ ATX Motherboard

登录/注册后可看大图 - $224.99                                 登录/注册后可看大图 - $249.30

登录/注册后可看大图 - $241.49

                   Pages: [ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 ]     
  Unlike many other manufacturers, Gigabyte Company uses very clearand logically justified approach to putting together model names fortheir products. Just a model name is already enough to learn a lotabout the product and its features. Without going too deep into detailswe can tell that GA-EX58-UD4P is a Gigabyte mainboard on Intel X58Express chipset. It is energy-efficient because it supports “DynamicEnergy Saver” technology, i.e. the number of active phases in theprocessor voltage regulator circuitry may change dynamically dependingon the workload. The board also belongs to the “Ultra Durable 3”series, which means that it not only uses high-quality electroniccomponents, but also has a thicker copper layer inside the PCB. Thesame is also true for Gigabyte GA-EX58-UD5 and GA-EX58-Extreme, whichwe have already reviewed before.However, these two mainboards are the top flagship solutions in thelineup, while the number “4” in the model name indicates that the boardbelongs to the mainstream segment. Therefore, we can expect itsfunctionality and design to be noticeably different from what the tophigh-end products have to offer.
Everything we have just said isabsolutely correct, but the mainboard to best fit our description wouldbe Gigabyte GA-EX58-UD4, while our today’s hero also comes with aletter “P” at the end that changes a lot. The letter “P” in Gigabyte’smodel naming system indicates extensive functionality. It could be anadditional graphics card slot, TPM (Trusted Platform Module) forhardware encoding, enhanced chipset cooling system or a combination ofthese features. As a result, all Gigabyte mainboards with a letter “P”in the end of the model name may often be especially interesting tocheck out, because they find themselves in-between the marketingsegments. Although the absence of certain functions or featureswouldn’t let them join a higher class of products, they still stand outsignificantly among the other solutions in their category.
GigabyteGA-EX58-UD4P mainboard is a vivid representative of a transitionalmodel like that. It differs from the regular Gigabyte GA-EX58-UD4without the “P” not only by the TPM encryption module, but also by itsPCB layout, ¾ of which are identical to that layout of the flagshipmodels. That is why we are especially curious to check out thefunctionality of this solution and find out if will be able to be atleast ¾ as good as the flagship mainboards.

Package and AccessoriesGigabyte GA-EX58-UD4P mainboardships in a vertical box that looks exactly the same as the box forGigabyte GA-EX58-UD5. Looks like that are using unified design andstyle for all mainboards in this series.
The back side of the box illustrates different features and peculiarities of this solution:
Thelist of included accessories also is almost identical to what isbundled with the top model and consists of the following components:

• FDD and PATA cables;
• A pair of SATA cables with locks and L-shaped connectors, and a pair of cables with straight connectors;
• A kit including brackets and cables for external Serial ATA devices;
• Connector bridges for two- and three-way SLI configurations and a metal panel holding the bridge;
• User’s manual;
• Brief installation instructions booklet in 25 (!) languages;
• Rear panel I/O Shield;
• DVD disc with software and drivers;
• “Gigabyte” and “Dolby Home Theater” logo stickers.

Besides, Gigabyte GA-EX58-UD4P also comes with a step-by-step manual on the hardware cryptographic TPM module.

PCB Design and FunctionalityWhen you look at Gigabyte GA-EX58-UD4P mainboard you can notice that it doesn’t differ too much from the top models after all:
Ifyou look at the top half of the mainboard PCB, you will notice nodifference at all. We see the same twelve-phase processor voltageregulator circuitry, the same convenient location of all components,the same buttons, connectors and indicators. No differences of any kindhere.
Themost dramatic difference is in the cooling system used for the chipsetand processor voltage regulator components, especially compared withGigabyte GA-EX58-Extreme. However, we can’t call the cooling solutioninstalled on Gigabyte GA-EX58-UD4P weak or limited. On the contrary, wecan even say that it has got rid of some excessiveness and looks verymuch like cooling solutions used on the majority of other contemporarymainboards. Our practical experiments showed that the cooling system inGigabyte GA-EX58-UD4P mainboard does its job very well and needs noadditional work or modifications to be done to it.
Anadditional advantage is a secure screw-on retention used for bothheatsinks over the chipset Bridge chips. Only the heatsinks over thevoltage regulator components are fastened with plastic push-in pins.
Aswe move over to the lower part of the PCB, we again don’t notice anydifference between Gigabyte GA-EX58-UD4P and elder models. They havethe same number of expansion slots that are placed identically. Andonly when we turn to the lower right corner of the PCB, we noticeseveral differences. It is only here that Gigabyte GA-EX58-UD4P looksmore like its younger sister – GA-EX58-UD4 (without a “P”).
However,although these differences are noticeable, they are not critical. Forexample, we don’t see a POST indicator that is available on thehigher-end models. Moreover, they have ten Serial ATA ports, whileGigabyte GA-EX58-UD4P has “only” eight: six provided by the IntelICH10R chipset South Bridge and another two – by the additionalGigabyte SATA2 controller. The same controller that is probably ananalogue of the widely spread JMicron JMB363 also adds PATA support tothe mainboard features list.

The last difference we can see is on the mainboard back panel. Theconnector panel looks the same as on higher-end boards, with that onlydifference that Gigabyte GA-EX58-UD4P mainboard has only one Gigabitnetwork controller instead of two.
Summingup everything we have just said let’s take a look at the list ofGigabyte GA-EX58-UD4P technical specifications. It is equipped with adifferent yet efficient chipset and voltage regulator cooling system,has no POST indicator, only one Gigabit network card instead of two andeight SATA ports instead of ten. However, to its advantage we have tomention that it features a hardware encryption module and lower price.Well, all of us have their own needs, but in my opinion, GigabyteGA-EX58-UD4P mainboard looks even more attractive than its higher-endcounterparts.
The detailed components layout for Gigabyte GA-EX58-UD4P will conclude our discussion of its PCB design peculiarities:

最后发表： xblues
回复内容：
如果有米的话，我可以再买一个快4770双卡交火。可惜还是节省一点吧。

还有就是目前虽然有好显卡，可是没有游戏可玩啊！！！

最后发表： xblues
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其实这些我都考虑过了。现在TN屏的质量已经照早期有了很大的提高，当然和IPS屏的差距还是很大的。视角问题，如果是大屏幕，来回翻转的几率并不大，你真的会把超过24英寸的屏竖过来使用么？如果不竖过来，可视角度的缺陷就不那么明显了。当然色彩的差异还是可以感觉出来的。

当然考虑到目前IPS屏的价格（足够买2个相同尺寸的TN屏了），还是买TN吧。
24的确不够大，不过目前27或者30的都太贵了，还是米不够啊。

最后发表： media000
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石棉吸入了肺部是不能再排出的

[ 本帖最后由 media000 于 28-5-2009 23:29 编辑 ]

最后发表： 8戒
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浪费资源啊。

最后发表： gztoday
回复内容：
感觉上现在 WD  好的!

最后发表： kane321
回复内容：
软raid会降低整体性能,raid 10了就

最后发表： xblues
回复内容：
这里查价格
http://www.staticice.com.au/

不过有时候不行，比如我配机器的时候着急，澳洲不像中国有数码超市，都不集中，而且每个商店的策略不同（有的很差，也不给你这个网上的价格，需要事先打电话确认一下，再去）。不过这个也不能想象，澳洲的数码配件市场被华人占领了已经。

上面那个价格是套装价格，CPU虽然便宜，可是那个配套的内存条就很贵了。我的CPU实际上也不是从那里买的，花了我450刀，还是看NEWGAY的面子呢。

最后发表： NEWGAY
回复内容：
行了不错了

最后发表： hm40419
回复内容：
COOLMASTER EXTREME POWER PLUS 550W 就相当不错了，才70多刀。强烈推荐

最后发表： kane321
回复内容：
http://www.staticice.com.au/cgi- ... ite+360+&spos=3
价格不准确的，但可以用来找店

最后发表： hm40419
回复内容：
澳洲哪里可以买到 富士康 的机箱？
迷你机箱最好。

看来看去，国际品牌中的机箱只有富士康的迷你机箱，能放下 ATX主板。

最后发表： flyspirit
回复内容：
谢谢啦，不过中午已经买了Asus M4A78 PRO

最后发表： kane321
回复内容：
有吗,同样的p45低端主板现在澳洲都是170以上,ep45-ud3l国内卖799左右,哪个便宜???
你说的是 G-B  EP45T UD3LR吧,这款已经停产国内货少的原因吧.

[ 本帖最后由 kane321 于 19-5-2009 00:18 编辑 ]

最后发表： Tux
回复内容：


去nas1.cn看一下吧。现在放在公司局域网里，达不到最高速度。

最后发表： dack
回复内容：
我从国内带了1个2wire 2700hg过来，二手的洋垃圾，淘宝上几十块钱买的。在这边用的挺好，支持adsl2+，信号非常好，现在带十几台电脑，流量很大的情况下没死过机。不过你说的那种扩展功能不知道有没有。

最后发表： suntest001
回复内容：
tomshardware每月都有一次上月显卡性价比排名。还是不错的。就是中文版（不论简体还是繁体）翻译的速度都太慢太慢了。

最后发表： xblues
回复内容：
$309(￥1545)

支持3条DDR3 三通道插槽
支持2个PCIE 16速接口

最后发表： liwus
回复内容：

最后发表： liwus
回复内容：
我就是技嘉主板，不过买了1年多了，P35-DS4。。

最后发表： 老领导
回复内容：
哎......
用得着配 i7 吗？
P45+酷睿2 平台，足够应付现在的软件（各种游戏）的应用需求了。
现在硬件的发展，已经远远超过软件的需求了。

最近看到一个华人老板，配了台 i7 ，每天就用它看新闻，聊MSN..........

最后发表： beysup
回复内容：
一直很喜欢AMD，虽然从来没用过它的产品

最后发表： xblues
回复内容：
很多4XXX都不带原生HDMI，但是这些显卡都随卡配了一个DVI-I2HDMI的转接头，用这个转接头可以连接HDMI设备。
我开始担心没有声音，现在看来只要是随卡配备转接头的都没有问题。

看了好多AMD 4XXX，都是双DVI-I + S-video，好浪费了，现在谁还用S-Video啊？这样的显卡一般都是AMD的新显卡，最多只能连接两个设备。

当然如果是那种 双DVI-I + HDMI 的就爽了。

最后发表： someonehappy
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不要强调力气小和是女生这种客观原因，要从主观上找问题。关键还是自己没达到艺高人胆大的地步。直接找个锤子，或者拿本厚书也行，一下就进去了。

最后发表： xblues
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Table of contents                                       

•                                                                                                                                 1 –                                                                                                                                         March Review/April Updates                                                               
•                                                                                                                                 2 –                                                                 Best PCIe Card: $60 To $100
•                                                                                                                                 3 –                                                                 Best PCIe Card: $120 To $200
•                                                                                                                                 4 –                                                                 Best PCIe Card: $200 To $390

•                                                                                                                                 5 –                                                                 Best PCIe Card: $400 And Up
•                                                                                                                                 6 –                                                                 Conclusion
•                                                                 7 –                                                                 More on this topic

                               
                                                                                                                                                                                Detailedgraphics card specifications and reviews are great—that is, if you havethe time to do the research. But at the end of the day, what a gamerneeds is the best graphics card within a certain budget.
So if you don’t have the time to research the benchmarks or if youdon’t feel confident enough in your ability to pick the right card,fear not. We at Tom’s Hardware have come to your aid with a simple listof the best gaming cards offered for the money.
March Review and April Updates:It's no secret that the brand new GeForce GTX 275 and Radeon HD 4890have been released since our last update. Those two cards have been thebiggest graphics card news we've had in a while. So, let's go overthese new products and consider where they stand from aprice-performance perspective.
We'll begin by talking about the card that was reviewed here first:the Radeon HD 4890. While the RV790 graphics processor is a re-spunversion of the RV770 found in the older Radeon HD 4870 and Radeon HD4850, it isn't equipped with any new features and is manufactured usingthe same 55 nm process. Essentially, the new RV790 is an RV770 tweakedto maximize overclocking potential. And maximize overclocking potentialit does, with a 1 GHz overclock setting considered viable enough thatit's included in AMD's own Overdrive overclock utility and in thedriver.
As great as this sounds, the real-life performance benefits of anoverclock are usually limited by the architecture in the first place.As impressive as the Radeon HD 4890 is with its 100 MHz core and 75 MHzmemory overclock versus the older Radeon HD 4870, we're looking at areal-world 10% speed increase over the cheaper Radeon HD 4870. From avalue standpoint, this speed increase isn't worth the ~$70 pricepremium over a single Radeon HD 4870 or GeForce GTX 260. In fact, thenew Radeon HD 4890 is priced about $10 away from the performance/valueleading Radeon HD 4850 X2, which sports CrossFire on a single card.
With that assessment in mind, let's have a look at Nvidia's answerto the Radeon HD 4890: the brand new GeForce GTX 275, which has a lotmore to offer than just a simple overclock. The new GeForce GTX 275 GPUis the same 55 nm processor that can be found in Nvidia's flagshipGeForce GTX 295 card, the important difference being that the GTX 295sports two of these GT200 graphics processors in an SLI-on-a-cardconfiguration, while the GeForce GTX 275 is equipped with just one.
Since the GeForce GTX 275 specifications are a mix between theGeForce GTX 285 (240 shader processors) and the GeForce GTX 260 (28ROPs and a 448-bit memory bus), its performance lies somewhere betweenthese two products. Lower-resolution performance tends to be close tothat of the GTX 285 and higher resolutions cause the performance todrop down in the direction of the GeForce GTX 260.
However, the end result is that the new GeForce GTX 275 performsvery close to the new Radeon HD 4890. This is all well and good, exceptthat we once again have to compare it to the similarly-priced Radeon HD4850 X2, against which neither of these new cards stand a chance.
The bottom line is that for these new cards to be priced accordingto the value of their relative performance, they would have to retailfor about $210. As long as they remain within spitting distance of theRadeon HD 4850 X2, they're going to be an extremely hard sell from avalue standpoint.
Other than these new products, the graphics card market has remainedsomewhat stable with a few prices slightly shifting up or down. Let'smove on to our recommendations.
Some Notes About Our RecommendationsA few simple guidelines to keep in mind when reading this list:

• This list is for gamers who want to get the most for theirmoney. If you don’t play games, then the cards on this list are moreexpensive than what you really need;
• Prices and availabilitychange on a daily basis. We can’t offer up-to-the-minute accuratepricing info, but we can list some good cards that you probably won’tregret buying at the price ranges we suggest;
• The list isbased on some of the best U.S. prices from online retailers. In othercountries or at retail stores, your mileage will most certainly vary;
• These are new card prices. No used or open-box cards are in thelist—they might be a good deal, but it’s outside the scope of whatwe’re trying to do.
• You'll notice the Newegg themes are similarto what you see in our System Builder Marathons. Before this story wentlive, we hunted down the best prices on these recommendations. Thatdoesn't mean prices won't change later, but you should at least get agood idea of the low prices for most of our suggestions.

                       
                                                                                                       

•                                                
  •                                                                                                                                                                                         1 |
  •                                                                                                                                                                                         2 |
  •                                                                                                                                                                                         3 |
  •                                                                                                                                                                                         4 |
  •                                                                                                                                                                                         5 |
  •                                                                 7

http://www.tomshardware.com/reviews/radeon-geforce-gtx,2270.html


fgfg

最后发表： kane321
回复内容：
我更喜歡p系列...902和1200有點像,900是第一代設計

最后发表： xblues
回复内容：
中规中矩的一个全尺寸机箱，MSY售价107刀，在所有MSY不包括电源的机箱中，这一款是最便宜的了。

http://msy.arpatubes.net/display ... amp;amp;query=16968

最后发表： xblues
回复内容：
Testing MethodologyNow that we know how far our Phenom IIX4 920 can be overclocked with air-cooling, we decided to check theperformance level we could achieve with an overclocked CPU. The maingoal was to find out if the new AMD processor could become a better buyfor overclockers than quad-core Intel CPUs from the same price range.So, the main action during this test session will be about the side byside comparison of Phenom II X4 920 overclocked to 3.72 GHz againstoverclocked Core 2 Quad Q8300 and Core 2 Quad Q6600. Intel set theprice point for these processors at $183, while Phenom II X4 920 isofficially priced at $195. Moreover, we have also included a moreexpensive Core 2 Quad Q9300 processor. Although it has almostcompletely disappeared from the official price-list, it is stillretailing widely for a somewhat higher price than that of Phenom II X4920.
As we have already mentioned in our previous reviews,the overclocking potential of junior Intel processors from Q8000 andQ9000 series is determined not by the frequency potential of thesemiconductor dies, but by the ability of the chipsets and mainboardsto ensure stable operational conditions at high FSB speeds. Therefore,we decided to test our Core 2 Quad processors with a popular ASUS P5Q Pro mainboard.It allows increasing the FSB frequency to 475 MHz for quad-coreprocessors. So, Core 2 Quad Q8300 and Core 2 Quad Q9300 with a 7.5xmultiplier were overclocked to 3.56 GHz (7.5 x 475 MHz) in order to beable to compete against Phenom II X4 920. It is the average frequencythe owners of these processors can count on.
Theprevious-generation quad-core Intel Core 2 Quad Q6600 processor isinitially designed to work with 266 MHz bus, so its multiplier ishigher and equals 9x. So, its overclocking potential was not limited bythe mainboard, although high heat dissipation wouldn’t let us push itsfrequency over 3.6 GHz (9 x 400 MHz).
To get a general idea ofoverclocked processors’ performance we included a few high-end CPUs intheir nominal mode: Core 2 Quad Q9650, Core i7-920 and Core i7-940. Youwill also see the results demonstrated by Phenom II X4 920, Core 2 QuadQ8300, Core 2 Quad Q9300 and Core 2 Quad Q6600 processors in theirnominal mode. They will help us estimate the performance gain fromoverclocking.
As a result, we put together three different platforms on 7 processors:
1.  AMD Socket AM2+ platform:

• CPU: AMD Phenom II X4 920 (Deneb, 2.8 GHz, 6 MB L3);
• Mainboard: Gigabyte MA790GP-DS4H (AMD 790GX + SB750).
• Memory:  GEIL GX24GB8500C5UDC (2 x 2 GB, DDR2-1067 SDRAM, 5-5-5-15).
• Graphics card: ATI RADEON HD 4870.
• HDD: Western Digital WD1500AHFD.
• OS: Microsoft Windows Vista x64 SP1.

2.  Intel LGA775 platform:

• CPUs:
  • Intel Core 2 Quad Q9650 (Yorkfield, 3.0 GHz, 333 MHz FSB, 2 x 6 MBL2);
  • Intel Core 2 Quad Q9300 (Yorkfield, 2.5 GHz, 333 MHz FSB, 2 x 3 MB L2);
  • Intel Core 2 Quad Q8300 (Yorkfield, 2.5 GHz, 333 MHz FSB, 2 x 2 MB L2);
  • Intel Core 2 Quad Q6600 (Kentsfield, 2.4 GHz, 266 MHz FSB, 2 x 4 MB L2).
• Mainboard: ASUS P5Q Pro (Intel P45 Express).
• Memory:  Corsair TWIN2X4096-8500C5 (DDR2-1067 SDRAM, 2 x 2 GB, 5-5-5-15).
• Graphics card: ATI RADEON HD 4870.
• HDD: Western Digital WD1500AHFD.
• OS: Microsoft Windows Vista x64 SP1.

3.  Intel LGA1366 platform:

• CPUs:
  • Intel Core i7-940 (Bloomfield, 2.93 GHz, 8 MB L3);
  • Intel Core i7-920 (Bloomfield, 2.66 GHz, 8 MB L3).
• Mainboard: ASUS P6T Deluxe (Intel X58 Express).
• Memory:  Kingston HyperX KHX16000D3K3/3GX (DDR3-1333 SDRAM, 3 x 1 GB, 7-7-7-20).
• Graphics card: ATI RADEON HD 4870.
• HDD: Western Digital WD1500AHFD.
• OS: Microsoft Windows Vista x64 SP1.

Four processors out of seven were tested not only in their nominal mode but also during overclocking:

• AMD Phenom II X4 920:

• Intel Core 2 Quad Q6600:

• Intel Core 2 Quad Q8300:

• Intel Core 2 Quad Q9300:

PerformanceGeneral PerformanceTheresults in the complex SYSmark 2007 test turned out not quiteoptimistic. Overall, even though Phenom II X4 920 outperforms itsdirect rivals in nominal mode, overclocking changes this picture. EvenCore 2 Quad Q8300 processor overclocked to 3.57 GHz outperforms PhenomII X4 920 working at 3.72 GHz. On the one hand, it once again indicatesthat Intel processors boast better IPC (instructions per clock), but onthe other – shows that Intel CPUs boast higher frequency potential,even though it is not fully revealed. While Phenom II X4 920overclocked by 33%, Core 2 Quad Q8300 reached 43% higher frequency whenit was stopped by the mainboard’s inability to catch up.
However,things are a little different in certain type of applications. Forexample, overclocked Phenom II X4 920 processor is a little ahead ofCore 2 Quad Q8300 in E-Learning scenario working with vector and rasterimages, PowerPoint presentations, PDF-files and flash-videos. And italmost catches up with the overclocked Core 2 Quad Q9300 inProductivity scenario that works with Microsoft Office suite.

Gaming PerformanceAtfirst glance, the new AMD solution seems to be winning in 3D games.Phenom II X4 920 working at 3.72 GHz outperforms its major Core 2 QuadQ8300 competitor in every single test we used. However, it most likelyhappens due to seriously cut-down cache-memory of the Intel CPU. Thatis why when we compare the performance of our Phenom II X4 920 againstthat of an overclocked Core 2 Quad Q6600, the outcome is no longer inAMD’s favor: even though Q6600 processor belongs to the previousgeneration, it features an 8MB L2 cache.
Overall, we are notreally talking about any serious performance differences. OverclockedPhenom II X4 looks quite well and demonstrates very good performance.Nevertheless, I have to say that overclocking a $200 quad-coreprocessor will not provide the users with the same performance thatthey could get from higher-end more expensive CPUs, even working attheir nominal speeds.

Video EncodingVideoencoding is the best application for the new AMD processors. Phenom IIX4 920 outperforms its rivals in nominal mode as well as duringoverclocking. By the way, at 3.72 GHz it also outperforms Core 2 QuadQ6600. However, it is still very far behind the impressive resultsdemonstrated by Core i7 CPUs. No wonder, since SMT technologyimplemented in the latest Intel solutions matters here a lot.

RenderingItis pretty hard to put together a single verdict at this type ofworkload. As you can clearly see from the diagrams, everything dependson the rendering application. Nevertheless, we can’t help stressing theimpressive results of Core i7 CPUs: they are evidently the best choicein easily paralleled computational tasks. No doubt about that.

Other ApplicationsFritzand Folding@Home are another two examples where “pure” computationspower of the CPU is important. So processors with higher IPC win inthese tests, and Phenom II X4 920 is evidently not one of them.Overclocking Phenom II X4 920 doesn’t help here either. The onlyconsolation is outperforming a much more expensive Core 2 Quad Q9650.
Thesituation in Photoshop is also not the best for Phenom II X4 920. Withor without overclocking, it yields to its main rival – Core 2 QuadQ8300.
However,the results of the WinRAR test will be a real pleaser for AMD fans. Thenew AMD CPU as always scores very high in this application.

Power ConsumptionOur Phenom II X4 920 performance testsshowed that it may be a very good choice for an overclocker platform.But before we draw any final conclusions, let’s see if it turns out aspower-efficient as Intel CPUs. So, we measured the power consumption ofa system (without the monitor) built around AMD Phenom II X4 920 in itsnominal mode and during overclocking  and compared these resultsagainst similar platforms built with Intel CPUs from the same pricerange, namely, Core 2 Quad Q8300, Core 2 Quad Q9300 and Core 2 QuadQ6600.
During this test session we loaded the CPUs using Prime95utility. Besides, we activated all power-saving technologies, such asC1E, Cool’n’Quiet and Enhanced Intel SpeedStep, to make sure that thepower readings in idle mode were correct. It is important to rememberthat Enhanced Intel SpeedStep is implemented in such a way that duringoverclocking it doesn’t change the processor core voltage, but stilllowers their frequency under low workload. AMD Cool’n’Quiet technology,however, is fully operational even in an overclocked system.

	Idle	100% Load
Phenom II X4 920	144 W	219 W
Core 2 Quad Q6600	157 W	246 W
Core 2 Quad Q8300	135 W	189 W
Core 2 Quad Q9300	136 W	192 W
Phenom II X4 920 @ 3.72GHz	153 W	312 W
Core 2 Quad Q6600 @ 3.6GHz	212 W	318 W
Core 2 Quad Q8300 @ 3.56GHz	141 W	236 W
Core 2 Quad Q9300 @ 3.56GHz	142 W	241 W

Unfortunately,new AMD processors still lose to alternatives from Intel even thoughthey are now manufactured with more advanced 45nm process. Even innominal mode a system on Phenom II X4 920 processor consumes 20-30 Wmore than similarly performing platforms on Intel CPUs. In fact,power-efficiency of the new Phenom II X4 processors improved onlycompared to the previous-generation quad-core Intel processorsmanufactured with 65nm process that are still widely available inretail.
During overclocking, the situation is not any better forAMD offering. Although Phenom II X4 920 boasts fully operationalCool’n’Quiet technology in overclocked mode, even in idle mode thesystem built on it consumes more power than Core 2 Quad Q8300 and Q9300based platforms. When the CPU utilization hits 100%, the powerconsumption difference turns more than serious and reaches 70-80 W.Moreover, power consumption of an overclocked Phenom II X4 920 basedsystem is almost the same as that of Core 2 Quad Q6600 (3.6 GHz) basedsystem.
However, there is a very logical explanation why the newAMD CPU didn’t impress us with its power consumption readings duringoverclocking. Even though Phenom II X4 processors use 45nm cores, theyrequire much higher Vcore than Intel processors.

ConclusionPhenom II X4 processors didn’t bring the desktopperformance to any revolutionary heights. Unfortunately, even newmanufacturing process doesn’t let AMD design CPUs that couldsuccessfully compete against Intel solutions in all price segments. Andalthough the clock frequencies of the new AMD processors increasedsignificantly, their performance turned out limited by the Stars (K10)microarchitecture potential, because it boasts lower IPC than thecurrent Intel microarchitecture. Phenom II X4 920 we have justdiscussed is a great illustration to everything we have just said. Atits nominal 2.8 GHz it can only compete against Core 2 Quad running at2.4 – 2.5 GHz frequencies. Only smart pricing strategy helps AMD here:they positioned Phenom II X4 920 in such a way that it turns out alittle better than the identically priced Core 2 Quad models.
However,overclockers have their own perception of the situation. They areprimarily interested in the processor’s ability to work in modes otherthan nominal. And here the new Phenom II X4 appeared much moreattractive than their predecessors. We could easily overclock ourPhenom II X4 920 processor by 33% clock frequency without anysophisticated cooling involved. At this frequency our CPU was onaverage faster than an overclocked Core 2 Quad Q8300. This resultcertainly makes quad-core Phenom II X4 920 a good overclocking choicein the sub-$200 price range.
However, you shouldn’t overestimatethe overclocking potential of Phenom II X4 920 processor, because Core2 Quad Q8300 is far not the strongest competitor in the Intel camp. Forinstance, the similarly priced Core 2 Quad Q6600 can hit much higherfrequencies than Core 2 Quad Q8300, even though it belongs to theprevious generation. So this processor can be on average faster thanPhenom II X4 920 working at a higher frequency, too.
Anotherweakness of the new Phenom II X4 920 processor, which stands out moreduring overclocking especially, is high power consumption. According toour tests, at 3.72 GHz it falls far behind more power-efficient Intelprocessors from Q8000 and Q9000 series. In fact, it almost catches upwith Core 2 Quad Q6600 here.
Nevertheless, we are extremelypleased with the results demonstrated by Phenom II X4 920. Although itdidn’t outperform the similarly priced Core 2 Quad dramatically, wecan’t say that it yields a lot to its rival, either. And it means thatAMD has every chance to become quite popular among overclocking fansdue to their new 45nm processors.

最后发表： xblues
回复内容：
AMD的支持DDR3的AM3平台目前无论是CPU还是主板都已经上市了。MSY也已经跟进，都可以买到了，尽管价格还没有国内公道。

DDR3比DDR2带来少于5%的性能提升，但是价格上DDR3贵大约50-刀。整体来看DDR3平台所能够带来的综合性能的提升还是不是十分明显的。DDR3平台的性价比不如DDR2平台。

AMD的 Phenom II X4 920/810的性能介于Intel Core 2 Quad 8200和8300之间，但是超频性能更佳。

最后发表： xblues
回复内容：
支持AMD的这款新的AM3 CPU可以超频，但是和Intel的相比，超频性能有限，另外挑内存。由于集成显卡，主板上没有风扇，安装系统以后就少掉了主板和外置显卡的2个风扇，只剩下CPU和电源的2个风扇了，系统会安静不少。

集成显卡HD3300的游戏性能不佳，这款主板用的是VIA的集成声卡（不太普及），超频性能不好，很适合初级入门用户选购，但是如果你有更好的要求，还是考了其他的选择吧。

MSY报价225刀。

最后发表： bg1pdq
回复内容：


我已经三次通过这个网站完成购物了。服务质量：好。

最后发表： xblues
回复内容：
这个网站的评论不错，写的十分细致，你可以看到，评论这么长。
这是技嘉的一块新主板，支持新发布的AMD AM3 CPU，支持DDR3内存，不集成显卡。如果性能要紧的话，可以考虑买这个主板，搭配双显卡，组装游戏系统。

MSY报价228刀。

http://www.xbitlabs.com/articles ... e-ma790xt-ud4p.html

最后发表： xblues
回复内容：
随着AM3的全面到来，担当先锋和过渡作用的两款AM2+接口Phenom II X4 940/920处理器也基本完成了历史使命，最终将在今年第四季度退市。
AMD已经通知合作伙伴，这两款处理器本季度末就会不再接受订单，不过之后仍会继续生产并出货，直到年底。
Phenom II X4 940已经被刚刚发布的Phenom II X4 945取代，除接口不同外二者规格完全一致，唯一可惜的就是后者锁定了倍频，不再是自由的黑盒版，毕竟它上边就是Phenom II X4 955 BE。
Phenom II X4 920对应的AM3版本则是Phenom II X4 925，同样是2.8GHz，近期就会推出。
最后预告一下，AMD今天将推出两款重要新品，一是首款40nm工艺桌面显卡RV740 Radeon HD 4770，二是新的K10架构双核心Athlon X2 7850 BE。由于Athlon X2 7750刚刚被破解成四核心而再度掀起轩然大波，相信其继任者势必会吸引更多关注。

最后发表： Fernando
回复内容：
现在视频越来越清晰，DIY的质量能保证么？
我手里有个800×600的投影，看看片子还不错

最后发表： willing
回复内容：
已经太老，没需求，当然就没的卖了。

最后发表： yuba
回复内容：
商机啊!!

最后发表： dilys
回复内容：
谁有Zelda twilight princess吗？能否借用一天啊？

最后发表： xblues
回复内容：
http://configure.ap.dell.com/del ... &oc=S142209WAAU

Dell这款IPS屏的22英寸显示器复活节促销中，100刀折扣，相当实惠了。

我不选择的理由：

• 显示器比例是16:10，今年的趋势是16:9
• 不带HDMI接口，现在很多显卡都是用HDMI接口
• 尺寸是22英寸，我想买24英寸或者更大的
  

你可以考虑的理由：

• IPS屏，色彩和可视角度和亮度都不是TN屏可以比的（目前市场上这个价位的差不多可以买高端TN屏）
• DELL的质量靠得住
  

如果你目前需要显示器，有不是十分在意我所在意的那些，就可以买了。实惠啊！

我的目标：

• 24或者以上尺寸
• 16:9
• HDMI
  

满足这个条件的TN屏，已经300-400元了，IPS屏就不敢想了。
我看中的那款Dell S2409W 24" 更是要价500，极其不实惠。
http://configure.ap.dell.com/del ... =&oc=S142409WAU

希望过两天我的24英寸加入促销，价格低于400刀我就入手。复活节促销在这里，
http://www1.ap.dell.com/content/ ... &l=en&s=dhs