Pemalite said:
fatslob-:O said:
Just so you know IPC isn't the whole story of performance. Oh and you appear to be right about jaguar (Got to check things out more often on my part.). I'm pretty sure floating point performance is a standard there are others like integer performance but that is not as important as the later.
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IPC does matter, that's Instructions Per Clock, it's certainly more important than flops and is why AMD hasn't *really* been able to compete with Intel in the high-end, despite Intel having a core disadvantage.
The problem with multi-threading a game is that you have a primary thread, all your secondary threads have dependancies in the first, that's why generally you will always have a single thread that is more demanding than any others on a multi-core system when running a game, that's why a high IPC at any given clock is important.
Floating Point as a gauge on performance really is pointless for games, note I said games.
If you were building an application that only used floating point, then it's an important measurement.
Game engines use allot of different types of math to achieve a certain result, the problem is you nor I will ever know what type of math is being used at any one instance in a games scene.
Take the Cell for example, it's a single-precision iterative refinement floating point monster, my CPU isn't even as fast in real-world tests when it comes to that, however the Cell's integer and double precisions floating point performance is orders of magnitude slower than my 3930K or even Jaguar, yet, overall in a real-world gaming situation, both CPU's would pummel the Cell.
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This is the kind of stuff I have been trying to tell Sony fans about AMD CPUs for years.
