Tiranis said:
Actually, macanal, it's you that amazes me. Maybe you should actually read on some benchmarks. The Dual Opteron is beaten by Quad G5 in most benchmarks.
8.5GB memory bandwidth on the Quad G5 Vs 12.8GB on the Dual Opterons.
Also the fact that the Opteron has much lower memory latency.
Factor in the Opteron has separate Memory and memory Bus for each CPU and does not share the same memory and memory bus with both CPU's like the G5, which causes a big bottleneck
Do the math!!
Are you looking a Jobs or Apple benchmarks?
I have seen the propaganda benchmarks with Apps optimized for what is being benchmarked on the G5 and not being optimised for the PC.
Also Apple pick out the one of maybe 10 benchmarks on a application that the G5 wins and publish that and not the 9 other benchmarks on the same application where the g5 gets blown away!! I have seen also all the Apple Fanboy sites benchmarks too.
No wonder Jobs is at Disney now because he makes up a lot of fairytales.
This is a FACT!! Steve Jobs said a SINGLE CORE of the core duo is faster then the G5 (Dont you believe Steve jobs when he said this?) a single core Opteron would blow away a single core of the Intel core Duo, it would not even be close!!
Here are some unbiased or doctored benchmarks
here
Here is another and keep in Mind the opteron has the lower speed model (2.4Ghz on the Opteron vs 2.5Ghz and 2.7Ghz of the G5's tested) and the opteron Still kicks but.
Here
A quote from Anadtech
"First of all, the G5 needs a lower latency access to the memory because right now, the integer performance of the G5 leaves a lot to be desired. The Opteron and Xeon have a better integer engine, and especially the Pentium 4/Xeon has a better Branch predictor too. The Opteron's memory subsystem runs circles around the G5's.
Secondly, it is clear that the G5 FP performance, despite its access to 32 architectural registers, needs good optimisation. Only one of our flops tests was " Altivectorized", which means that the GCC compiler needs to improve quite a bit before it can turn those many open source programs into super fast applications on the Mac. In contrast, the Intel compiler can vectorize all 8 tests."
I know network engineers that laugh at Xserve System because the performance is so poor and the price is so high.
When Steve Jobs releases the Quad Intel power Mac Systems, you will see he will no doubt bang on about how much faster they are then the Quad G5's just like he did at the last keynote.
When in reality they are just Core Duo's with EMT 64 and HT and a Faster FSB.
The Opteron will still blow them away.