AMD's Six-Core Phenom II X6 1090T & 1055T Reviewed
by Anand Lal Shimpi on April 27, 2010 12:26 AM EST- Posted in
- CPUs
- AMD
- Phenom II X6
DivX 6.8.5 with Xmpeg 5.0.3
Our DivX test is the same DivX / XMpeg 5.03 test we've run for the past few years now, the 1080p source file is encoded using the unconstrained DivX profile, quality/performance is set balanced at 5 and enhanced multithreading is enabled.
Thanks to AMD's Turbo Core the Phenom II X6 is pretty close here, but still not able to topple Intel's Core i5 and i7.
x264 HD Video Encoding Performance
Graysky's x264 HD test uses x264 to encode a 4Mbps 720p MPEG-2 source. The focus here is on quality rather than speed, thus the benchmark uses a 2-pass encode and reports the average frame rate in each pass.
And we finally see the Phenom II X6 flex its muscle, even the 1055T is faster than the Core i7 860:
In the actual encoding pass the 1055T falls behind the 860 but it's still a good 19% faster than the Core i5 750.
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JGabriel - Tuesday, April 27, 2010 - link
I agree with your approach, Anand. As a customer, and for a general review, I'm most interested in what performance I can get without increasing the core voltage and power consumption.Pushing the overclock seems more suited for a separate article, or for sites specializing in overclocking or gaming.
.
GullLars - Tuesday, April 27, 2010 - link
+1 on more overclocking testing. It could be a new article dedicated to investigating OC vs stock against the i5 cpus. Also, i remember seing some results for powerconsumption pr performance on different clocks and voltages, that would be interresting to see for the PII x6.I would also like to see what effect just bumping the FSB up from 200 makes, and how high you get it with stable turbo modes. Finding the max stable FSB with lowered multiplier gives a hint to how far it can clock, and how far the non-BE versions can clock.
I'm considering a a 1090T BE or 1055T to replace my 9850BE (too hot, and won't OC) untill bulldozer chips come out. If the 1055T can take a 20-25% FSB increase and stay stable, that would be my choice.
Anand Lal Shimpi - Tuesday, April 27, 2010 - link
Ask and you shall receive: http://anandtech.com/show/3676/phenom-ii-x6-4ghz-a...jav6454 - Tuesday, April 27, 2010 - link
I miss when Intel was on the run for the market... AMD's 6-core does well, but it'd marginally better than a 4-core from Intel... true you get more cores, but is them small performance worth it? I think not.KaarlisK - Tuesday, April 27, 2010 - link
Overclocking it is definitely interesting, and it would be nice to know whether it's power consumption is much lower or not. It's a lower bin, so it should have slightly higher power consumption at the same clock, but it does have a much lower clock.Anand Lal Shimpi - Tuesday, April 27, 2010 - link
We didn't have an actual Phenom II 1055T, we simply underclocked our 1090T and lowered the turbo core ratios to simulate one. This is why we don't have power consumption results for it either.Take care,
Anand
adrien - Tuesday, April 27, 2010 - link
Hi,I find the results of the 7zip compression benchmark a bit weird. I own a Phenom II X4 955 and I'm currently compressing something (800MB) in a windows7 virtual machine with only two cores (way to go MS!). Still, I'm getting something more than 2MB/s (and this virtual machine has crappy disk I/O, maybe less than 4MB/s sustained). LZMA is slower on data that compresses badly so it's not possible to draw conclusions but overall, it still looks weird.
Which version of 7zip is being used? 4 or 9? And which minor version?
Also, are you using LZMA or LZMA2? IIRC, LZMA can only use 2 threads while LZMA2 can use more (maybe powers of two, not sure).
Also, I think that the 64bit versions are faster. I guess you're using 64bit binaries but it's better to check (running 32bit software on 64bit OSes indeed has a cost), maybe like 5% to 15%.
Anand Lal Shimpi - Tuesday, April 27, 2010 - link
I'm using 7-zip 9.10 beta and LMZA compression in order to compare to previous results, which unfortunately limits us to two threads. In the future we'll start transitioning to LMZA2 to take advantage of the 4+ core CPUs on the market. Today I offer both the benchmark results (max threads) and the compression test (2 threads) to give users an idea of the spectrum of performance.Take care,
Anand
adrien - Wednesday, April 28, 2010 - link
OK, very good. Thanks. :-)That explains why the deca (and actually quad) cores don't benefit much from that. It'd probably deserve a mention on the chart or next to it.
adrien - Wednesday, April 28, 2010 - link
Not decacores but hexacores of course. Too early in the morning I guess.