Orchid XP v7 nous apporta ses lumieres en ce 2007/10/30 16:41:
> Alain wrote:
> 
>> They will probably install and run, but also, probably, with deliberately
>> cripled performances.
>> A dirty trick by those making the demos (independent from where they 
>> come from):
>> Let install on the concurent maker's card, but disable some features 
>> and replace
>> others with some DEoptimised versions that deliberately run slower.
> 
> Yeah, that wouldn't surprise me.
> 
>> To get the real results, you need to use demos and benchmarks by 
>> independant
>> devlopers, and hope that your drivers don't have special codes that 
>> lowers the
>> settings like resolution, polygon count and colour depth, to 
>> artificialy make
>> the benchmark run faster. nVidia DID use that dirty trick, and there 
>> is no proof
>> that ATI used it or not at this time.
> 
> Um... lower the polygon count? That sounds like a *highly* nontrivial 
> task. Arguably more work than actually rendering all the polygons. :-P

Not at all! The benchmark programm already have several quality levels, 
including various mesh resolutions.
What you do, is to dynamicaly reset the relevant parameter of the benchmark to a 
lower setting after the user have set it and hit the StartBenchmark button, but 
before the benchmark have realy begun. Then, after the benchmark have finished, 
you set it back to the user selected value.
The net result: artificialy inflated FPS count!

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when you have ever brought your 
computer to its knees by mistakenly launching 64 simultaneous frames to be 
traced, while trying to maximizing the benefits of parallelizing them.
Carsten Whimster

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