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AMD Phenom II X4 810 CPU PerformanceAlthough the new AMDPhenom II X4 810 CPU is designed in Socket AM3 form-factor, we decidedto check its performance as well as the performance of other new CPUmodels in a Socket AM2+ system equipped with DDR2 SDRAM. The reason forthat is quite logical from the economical standpoint: these mainstreamprocessors will most likely be used in these particular systems.Moreover, we used DDR2 memory in all other systems, so it seemedabsolutely fair to go with a Socket AM2+ platform for our AMD Phenom IIX4 810 processor performance analysis.
General PerformanceSmartpricing policy is definitely one thing AMD has become very good atlately. That is why it would be very strange if one of the newlyannounced CPUs looked out-of-place in the same price range as itscompetitors. So, we were not at all surprised to see that the newPhenom II X4 810 was a little faster than Core 2 Quad Q8200. However, amore expensive Intel Core 2 Quad Q8300 processor turned out a toughernut to crack for the new AMD solution.
Gaming PerformanceAlthoughPhenom processors became much faster in games than their predecessorsmanufactured with 65nm process, we still can’t announce a convincingvictory of the Phenom II X4 810 processor over Core 2 Quad of the sameprice. Phenom II X4 810 definitely lacks some frequency that is why wecan’t recommend it for gaming just yet. However, AMD processor is notdoing too bad and in some games its performance is well up to the mark.
Video EncodingHoweverduring video encoding, Phenom II X4 810 shows its real best. Forexample, it even competes successfully against a more expensive Core 2Quad Q8300 in x264 codec. It must be due to a highly efficient FPU/SSEunit of the CPUs on Stars (K10) microarchitecture.
RenderingItis very hard to put together a general verdict here. As you can seefrom the diagrams, everything depends on the application used forrendering needs. Nevertheless, Phenom II X4 810 did not bad at allshowing very good results even in 3ds max that has always been Intel’sturf.
Other ApplicationsAdobePhotoshop and Microsoft Excel are two popular applications where PhenomII processors do not do too well. It is also true for the new Phenom IIX4 810 that loses to Core 2 Quad Q8200 by 9% and 17% respectively.
PhenomII X4 810 demonstrates acceptable performance in Wolfram Mathematica 7,even though it is still a little slower than the junior Core 2 Quad.
However, archiving in WinRAR works real well for the new AMD CPU, much better than in the previous cases.
Computationaltasks with integer arithmetic are not the best environment for CPUs onStars (K10) microarchitecture. Two diagrams above prove this pointcorrect.
OverclockingThe launch of Phenom II processor familybreathed new life into AMD CPUs overclocking. These processors based on45nm cores boast pretty good overclocking potential that can beuncovered by raising the frequencies over their nominal values. Our earlier testsshowed that these processors can work at up to 3.7-3.8GHz frequencieswith air-cooling employed. However, those conclusions were made for the900 series processors based on fully-functional Deneb cores. Now we gotour hands on a Phenom II X4 810 with a smaller L3 cache. Moreover, itis made in Socket AM3 form-factor.
To study the overclockingpotential of the new processor we used new Gigabyte MA790FXT-UD5PSocket AM3 mainboard. With the help of this board we will also checkhow overclocking-friendly the new Socket AM3 platform is overall. Weused Scythe Mugen cooler with Noctua NF-P12 fan for our CPU.
Wemanaged to achieve the best result by raising the processor Vcore fromthe nominal 1.3V to 1.525V. In this case our CPU overclocked to3.64GHz, which is quite comparable with the results obtained on otherPhenom II processors that we tested before.
Notethat since Phenom II X4 810 processor doesn’t belong to the BlackEdition series and doesn’t have an unlocked multiplier, we overclockedit by raising the base clock generator frequency. Namely, we get3.64GHz we had to increase the clock generator frequency to 280MHz andour Socket AM3 mainboard coped with it perfectly fine. In other words,CPUs overclock in Socket AM3 systems in exactly the same way they do inSocket AM2+ systems that is why you can refer to our overclocking guide for additional details.
Asfor Phenom II X4 810, the 40% frequency boost may become a goodargument in favor of AMD platform. Especially, since Intel Core 2 QuadQ8200 processors priced comparably can often go only as far as 3.4GHz. Therefore, a system built on Phenom II X4 810 processor may become a pretty attractive choice for overclocking fans.
ConclusionFrankly speaking, AMD’s timing with the launch oftheir new Socket AM3 platform for CPUs supporting DDR3 SDRAM is alittle strange. For some reason, this platform didn’t come out a monthago when they first announced a new Phenom II processor family. As aresult, Socket AM3 launch is accompanied by the mainstream processorsonly, since the top Phenom II modifications are already available inSocket AM2+ form-factor. However, these processors are not the bestcandidates for the new Socket AM3 mainboards. DDR3 SDRAM is currentlyabout 1.5-2 times more expensive than the widely spread DDR2 memory.Therefore, the benefit of investing into more expensive memory over amore expensive CPU is quite doubtful at this point.
However, themain advantage of Socket AM3 processors is their flexible memorycontroller that can work with both: DDR3 as well as DDR2 memory. Thatis why you don’t have to use the newly announced mainstream Phenom IIprocessors in Socket AM3 systems. They will work perfectly fine in theexisting Socket AM2+ or even Socket AM2 infrastructure.
Nevertheless,we tested the new processor in a Socket AM3 mainboard and saw that itwas absolutely viable. DDR3 SDRAM with Phenom II processors provides anoticeable effect: about 3% performance improvement even compared withDDR2-1067 SDRAM.
Luckily, high-performance Socket AM3 processorsmay be coming out shortly. AMD will most likely adjust its productrange accordingly within the next few months and the new platform willbe able to team up with high-performance CPUs. This remaining extratime is going to be very valuable for the mainboard makers who need tofinalize and polish off their Socket AM3 products.
As for the AMDPhenom II X4 810 processor we discussed today, it is anotherincarnation of AMD’s strategy to be offering higher performance at alower cost. Our tests showed that its performance is comparable to thatof Intel Core 2 Quad Q8200, while its price is a little lower. As aresult, AMD currently has a great alternative to all least expensivequad-core Intel processors starting with the Core 2 Quad Q9400 model.In other words, AMD made a very significant step to offering acompetitive lineup of processors that we have every reason to recommendas a good buying choice.
In conclusion I would only like to addthat we are going to continue checking out new Phenom II processors.Very soon we will offer you our review of triple-core CPUs on 45nm Hekacore. |
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发表于 3-5-2009 08:03:51
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