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Author Topic: NASA Benchmarks Power Mac G5  (Read 5143 times)

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Offline dammy

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Re: NASA Benchmarks Power Mac G5
« on: July 05, 2003, 07:40:52 AM »
I'm still waiting for a head to head 64 bit vs 64 bit CPU comparison on like (technology wise) mobos.

Dammy
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Offline dammy

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Re: NASA Benchmarks Power Mac G5
« Reply #1 on: July 05, 2003, 05:33:41 PM »
Poster: Melaure Date: 2003/7/5 11:59:05

Quote
The Apps were not compiled for G5 but for G4 (monoproc) and without Altivec. With a G5 optimisation, the G5/2Ghz should match the P4/3.2 Ghz or even beat it by 20%. These tests consist only in floating point calculation.

In a second phase, they have done Vector Benchmarks. In this case the Altivec is used and their ratio Mflops/mhz had explosed !!!
There is no bench for P4 which does not have a vector unit and I'm sure that the result would have been very poor ...


The G5 rocks, believe it !


970 is a good CPU, no doubt about it. Let's look at what the report actually said:

Quote
Based on raw scalar floating point performance in Jet3D, a 2GHz G5 system can match a 2.66GHz P4 system, and this is a dramatic improvement from earlier tests where G4 systems lagged behind higher clock speed P4 systems. Based on an extrapolation of current P4 results, the 2GHz G5 would lag newly announced 3.2GHz P4 systems in Jet3D scalar floating point performance by about 20%, but this kind of comparison is best deferred until G5-aware compiler tools become available (since a 20% performance gain is well within the potential of compiler optimization).


Says the G5 would lag newly announced 3.2 GHz in Jet3D scalar floating point.  It's a great increase over G4, but let's keep Jobs' smoke and mirrors confined to Neverneverland. ;)

Again, next month's release of Athlon-64 on same technology mobos as G5 should prove a realistic benchmark comparisons.

Dammy
Dammy

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