We've recently setup a home-made machine to test the render power of a single core 2 duo against the once flagship AMD dual-dual core opterons for VRay netrendering. Something is confusing us and maybe someone here knows the answer?
Computer A: Opeteron 270's (4 cores) ($4200US at time of purchase)
Computer B: Core 2 Duo (single 2.13ghz, 2 cores) overclocked to 3ghz ($750US)
Max 8 | Backburner 3.02 | VRay 1.47.03
Rendertimes (test scene):
Computer A: 42 minutes
Computer B: 44 minutes
So we could buy 5 single core 2 duos for the price of one opteron??? This just doesn't make any sense...Even with the vast improvement of the Intel core 2 duo, should it be that close in render time?
We're starting to wonder, perhaps there is something wrong with our opterons...so we installed the AMD proc drivers and tried the processor affinity script (from splutterfish forum)...it actually got slower!
Is there something about the way VRay is compiled for INTEL that is making the Opterons not perform the best that they could? Or are the core2 duos just that good? I seem to remember something about bugs in the vs compiler that slows down opeterons.
Anyone have any insight on this?
Bill
Computer A: Opeteron 270's (4 cores) ($4200US at time of purchase)
Computer B: Core 2 Duo (single 2.13ghz, 2 cores) overclocked to 3ghz ($750US)
Max 8 | Backburner 3.02 | VRay 1.47.03
Rendertimes (test scene):
Computer A: 42 minutes
Computer B: 44 minutes
So we could buy 5 single core 2 duos for the price of one opteron??? This just doesn't make any sense...Even with the vast improvement of the Intel core 2 duo, should it be that close in render time?
We're starting to wonder, perhaps there is something wrong with our opterons...so we installed the AMD proc drivers and tried the processor affinity script (from splutterfish forum)...it actually got slower!
Is there something about the way VRay is compiled for INTEL that is making the Opterons not perform the best that they could? Or are the core2 duos just that good? I seem to remember something about bugs in the vs compiler that slows down opeterons.
Anyone have any insight on this?
Bill
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