Originally posted by: Nehemoth
Nobody talk about this
http://www.amdzone.com/#4
http://www.apple.com/xserve/
The people at apple are crazy???
Can be apple suit for this???
I don't see were Apple claims to have fastest computer.
If you know what Linpack is and how the g5 works then I have no doubt that these benchmarks are true.
What pisses me off is places like amdzone calling bullsh!t and having no real knowledge and understanding what they are talking about in the first place.
This is like saying that GCC benchmarks (the original intel vs g5 benchmarks) were bullsh!t because the intel proccessor scored higher speeds using ICC.
That's like saying that my computer scores higher fps in quake3 then it's much faster then your computer because your scores in UT2003 is so much lower.
I am only going to say this once and I know what I am talking about, because I've run these benchmarks several time myself on different hardware.
Go here to learn how Linpack works and how it works
Linpack is a program designed to test the floating point performance of very different peices of hardware.
Floating point proccessing power is something that the G5 has always done VERY VERY good in. That's why in programs like photoshop Mac's have always done well.
There is a reason why the G5 was choosen for the BigMac cluster. It's because it is needed to proccess large amount scientific calculations that are amlost exclusively in double point percision floating point units.
As apposed to unsigned Long, or signed Short, or Word, etc etc data units.
Basicly if those guys at the AMD fanboy site actually knew what they were talking (or more probably they know exactly what they are talking about, but hope that most people reading it don't) about they would quickly point out that these benchmarks LITTLE OR NO BEARING ON REALISTIC SERVER PERFORMANCE AT ALL.
Then they would be right.
ANyways from this
Listing of a Java version of the linpack (there are lots of different versions original was written using fortron) benchmarks
# 261 Mflop/s; Other Mac OS G5 2 Ghz; 10/25/03 bill shine
# 260 Mflop/s; Mac Mac OS Powermac G5, 1gig ram. 250gig hd; 12/28/03 Mad Max
# 242 Mflop/s; Other Mac OS G5 2GHz; 10/7/03 Keith Stewart
# 241 Mflop/s; Mac Mac OS G5 dual 2.0 GHz; 10/28/03 Scott Therrell
# 238 Mflop/s; Other Mac OS Mac OS X 10.2.8 on a dual PPC970 ("G5") 2.0GHz; 10/17/03 Dan Birchall
# 236 Mflop/s; Other Mac OS PowerMac G5 Dual 2GHz; 6/24/03
# 235 Mflop/s; Other Mac OS 2GHz DP G5; 9/8/03 Eric Mockensturm
# 234 Mflop/s; Other Mac OS dual 2 ghz g5 running osx; 10/4/03
# 124 Mflop/s; Other Windows2000 dual opteron @ 1.4 ghz running Windows XP (32 bit); 6/25/03 Jared Richardson
# 198 Mflop/s; Other Windows2000 Opteron 142, DDR266, ASUS SK8N; 9/21/03 Yoichi Mizomata
Of course java is a bit slower then normal Linpack benchmarks.