[rescue] Need Powermac G5- Dual 2.0 Ghz or better

nate at portents.com nate at portents.com
Tue Dec 9 10:24:02 CST 2008

> You don't think that a PS3, running at 3.2ghz with a dual threaded
> PPC core and 6 SPEs is faster than a $400 PC which is probably only a
> 2.4ghz C2D?

That's actually a very complicated comparison because the architectures
are so radically different.

The theoretical performance of the PS3 is much higher, but you need very
specific workloads and coding to get close to it because it is a very
different beast, and the CPUs are also all non-superscaler (no on-the-fly
instruction reordering).

A 2.4Ghz C2D is bother superscaler and performs things like macro-ops
fusion on 32-bit code, which makes it very good at other types of
workloads and code (the type that isn't heavily threaded, optimized, or
planned out), and if the code you're running is single-threaded and can
fit mostly in the L2 cache, you get very good performance without much
coding work.

- Nate

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