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AMD's 3rd generation Opteron versus Intel's 45nm Xeon: a closer look
AMD's 3rd generation Opteron versus Intel's 45nm Xeon: a closer look
Date: November 27th, 2007
Topic: IT Computing
Manufacturer: Various
Author: Johan De Gelas
 
 

3ds Max 9 (32-bit Windows)

We tested with the 32-bit version of 3ds Max version 9, which has improvements that help multi-core systems but which is not as aggressively tuned for SSE as LINPACK and zVisuel. We used the "architecture" scene, which has been a favorite benchmarking scene for years. We performed all tests with 3ds Max's default scanline renderer, we enabled SSE support, and we rendered at HD 720p (1280x720) resolution. We measured the time it takes to render ten frames (frames 20 to 29).

As promised, we profiled our different benchmarks to understand them better. We performed profiling with AMD's CodeAnalyst; VTune profiling will follow later. 3ds Max runs four modules when you render:

  • Render (46% of the time)
  • Ray-FX (28%)
  • Geometry (15%)
  • Core (11%)

To keep things simple, we summarized our findings with a weighted average over all modules.

3dsmax Profiling
Profile Total
Average IPC (on AMD 2350) 1
Instruction mix
Floating Point 39%
SSE 12%
Branches 13%
L1 datacache ratio 0.56
L1 Instruction ratio 0.27
Performance indicators on Opteron 2350
Branch misprediction 6%
L1 datacache miss 1%
L1 Instruction cache miss 5%
L2 cache miss 0%

As you can see, 3ds Max is mostly about floating-point performance with a bit of SSE instructions. It runs perfectly in the L1 and L2 cache of our CPUs. To make the graph easier to read we did not report our results in the classic way (rendering time) but expressed them in images rendered per hour (10 images * 3600 seconds divided by render time). Higher is therefore better.


3DS
Max 9 Architecture

The Xeon 5472 is about 8% faster than its older brother and widens the gap from the AMD Armada. We included quite a few results of older tests. This benchmark focuses on the CPU; chipset and RAM choices don't impact performance much. Interestingly, the Opteron 2350 is about as fast as four 2.4GHz single-core Opterons. Thus, in software with a "small dash" of SSE, the new architecture is about 20% faster. If we extrapolate our AMD quad-core results to 3GHz, the result would be about 59 images per second, which indicates that AMD's newest is about 10% slower than Intel clock for clock. That is no real surprise anymore: FLOPS showed us that the raw x87 FP and SSE power of AMD's latest architecture is slightly lower than the newest Xeon. It also can only overpower the Xeon 53xx if there are enough divisions involved. AMD's Barcelona architecture will only show a real advantage in bandwidth limited FP situations such as SPECfp2006 and many HPC applications.

Software Rendering: zVisuel (32-bit Windows)   Next Page

 
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43 Comments - Last by befair, 437 days ago
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GIF by jojo4u, 805 days ago
Yuck, ugly GIF on the first page. Please use PNG because 256 colors are not enough for screenshots ;)

Reply
RE: GIF by SonicIce, 805 days ago
I think the color depth was decreased alot more than 8 bit. That image only has 33 unique colors in it. Something went wrong with the dithering maybe? 256 is usually more than enough.

Reply
RE: GIF by Justin Case, 802 days ago
Who cares? The only part that suffers is the gradient at the top, all the relevant information is there, and this file is about half the size of what a PNG would be.

Reply
RE: GIF by jkostans, 805 days ago
Didn't even notice.

Reply
RE: GIF by aeternitas, 789 days ago
Then why are you here? Details is what technology is about!

I for one have a pet peeve with tech sites that use the wrong formats in their stories. Slightly damages credibility. Not to say this is a big deal in this case, though .gif is pretty much dead, unless you use an old browser on old tech, but then why would you be reading this story?

Look on the bright side, at least this isnt a Codec vs. Codec story, where the author uses jpgs for such color-limited screenshots.

Reply
RE: GIF by deathwombat, 801 days ago
In addition to being less ugly, PNG's higher compression would also make the file smaller (using less bandwidth), which I assume is what they were going for.

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AMD's ghost product by DigitalFreak, 805 days ago
Three months or so since "launch", and you still can't get a server with AMD quad-core chips from any of the big 3 vendors (HP, Dell, IBM). AMD really screwed the pooch on this one.

Reply
Excellent article! by jones377, 805 days ago
Any chance you could use the same tools to profile desktop applications as well in the future?

Reply
Very Nice by AssBall, 805 days ago
Thanks, Johan.

This has been one of the clearer and better proofread articles I have read here lately. It was interesting, unbiased, and insightful. I am excited to see what you get into for your next project.

Reply
RE: Very Nice by Bluestealth, 805 days ago
I agree, it was a very well done article. I can't wait to see how Intel's processors preform on Hyper... errr... Common System Interface (next year?). I believe that I will be buying AMD until that happens though for any servers.

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