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Old March 4, 2010, 02:06 PM
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Default Fermi benchmarking controversy

A moderator on Overclock.net has run the Unigine benchmark at the settings used in nVidia's 'GTX480 vs 5870' slides on his 5850, and the results are surprising.

Quote:
Originally Posted by IEATFISH
Uh-oh nvidia guys, my results are gonna probably make some of you flame me. I lined up the axis 0 an 80 and then stretched the sides until my peaks matches the ones on their chart (since fraps was started and ended at a different time than they did). My results show that they most likely benched a 5850 and not a 5870 as there was only a 1 or 2 FPS difference (and my system is far from optimized whereas theirs is probably a clean install). There is also some slight tilt in their chart still so that could account for the very slight differences. :eek:


edit: Or maybe my 5850 is a 5870 in disguise. :D
His results are in blue.

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Old March 4, 2010, 02:09 PM
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hmmmmmmmm
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Old March 4, 2010, 02:11 PM
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He's re-running it with his computer at 3.33 GHz instead of 4, and the differences are being blamed on everything from drivers to sunspots, but it's definitely thought-provoking.
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Old March 4, 2010, 02:25 PM
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Update:

Quote:
Originally Posted by IEATFISH
Okie dokie, redid the test at 3.25 (just changed the multi, didn't want to mess with BCLK so I erred on the side of lower). The low FPS at the beginning is something I have noticed on multiple runs and not sure why that is, maybe because I it was a fresh boot and the bench wasn't in RAM yet. Anyway, the rest of it is pretty clear. I also tidied up my graph:
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Old March 4, 2010, 03:07 PM
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Now, if only he has a 5870 too to compare.

I guess everything will be clearer by end of this month (hopefully).
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Old March 4, 2010, 03:19 PM
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Yeah, I never put much faith into pre-release benches, and especially ignore them unless there are enough other sources to compare with.
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Old March 4, 2010, 04:01 PM
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I've already got popcorn in the microwave. I'm going to sit back and watch this one play out without saying one.....bloody....thing.
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Old March 4, 2010, 04:04 PM
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Some people have way too much time on their hands. It will be out, eventually, and then the speculation can end.
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Old March 4, 2010, 04:05 PM
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It must be nice to know the truth when nothing but rumours and bits and pieces of truth are floating around.
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Old March 4, 2010, 04:08 PM
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Well, in fairness, the results being questioned aren't WRT the numbers being put out by the new vid card, they're about the reference #s being used. For this to get anywhere we'd need to see some #s comparing the 5850 to a 5870 using this benchmark... maybe for this particular benchmark those two cards perform similarly.
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