Irrelevant benchmarks again !!!!
These Photoshop, rendering and 3D tests only go to prove the lack of expertise in optimising apps for the G5.
If you look at
Apples performance figures you will get a more accurate overview of the potential of the G5 and not a test of how well software is written. I understand that we can only use what developers create and if Adobe creates a faster version of PS on the PC then it's obvious that the PC benchmarks are going to be faster.
If that's the case then these threads should be titled:
Adobe's PC dev team VS Adobe's Mac dev team and not Opteron vs G5
For a more accurate measure of actual CPU performance you need to look at highly optimised code libraries available on All platforms. You need to find code that each platform vendor has had, the time, money and expertise to make their respective CPU architecture looks as impressive as possible.
A good set of code libraries do exist in the form of FFT or fast fourier transforms. These highly optimised code libraries and algorithms are at the heart of every decent app used for video, audio and imaging. Each vendor has now had the time to fully optimise their own libraries to compile and execute as fast as humanly possible. Each vendor is allowed and has used every trick up their sleeve to make their CPU work as fast as possible.
And you will agree that the benchmarks are very surprising indeed. Here is an overview of the results that are linked to below (from slowest - fastest):
These are peak results for double precision 1D transforms measured in mflops
Single 400Mhz G3
____________________415
Quad 500Mhz PIII
____________________500
Single 500Mhz Ultrasparc IIe
____________810
Single 733Mhz G4
____________________985
Dual 833Mhz Alpha Eu6
_______________1600
Dual AMD Athalon XP1700
_____________1650
Dual 1.4Ghz AMD Opteron 240 - 32-bit
____1730
Dual 1.4Ghz AMD Opteron 240 - 64-bit
____2075
Dual 2.0Ghz AMD Opteron 246 - 32-bit
____2400
Dual 2.0Ghz AMD Opteron 246 - 64-bit
____2900
Dual 2.2Ghz Xeon
____________________2900
Dual 900Mhz Itanium II
________________3025
Dual 2.8Ghz Xeon
____________________3900
Dual 2.8Ghz Xeon New Code libraries
______3900
Dual 2.0Ghz G5
______________________4000
These are peak results for single precision 1D transforms
Dual 2.0Ghz AMD Opteron 246 - 64-bit
___4300
Dual 2.8Ghz Xeon
___________________6900
Dual 2.0Ghz G5
____________________10000
These result make it perfectly obvious that the G5 under highly optimised conditions is by far the superior CPU architecture. The full benchmarks including all source code used is freely available from the following site
FFTW . You will also see that this site has NO affiliation or preference for any particular platform. Their goal is to simply create the fastest possible FFT libraries for as many platforms as possible.
From the above figures the Dual G5 is:
144% faster then the Dual Xeon and
232% faster then the Opteron .
These results also have to do with the fact that Apple has produced the fastest FFT code library currently available anywhere, fullstop. These Apple code libraries are also the reason why FCP, DVD Studio Pro and Apple's other Pro apps are the fastest in their respective fields. If Apple were to release a competitor to PS I would stake my life on the fact that it would trounce any crappy Adobe version, even running on the fastest PC available.
So please stop pretending that these other published benchmarks are anything more than a test of the software and how well it is written.