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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: KeithDust2000 who wrote (169744)	8/23/2005 6:39:53 PM
From: Petz	Read Replies (1) \| Respond to of 275872

... and since Intel only wants to talk about integer performance, what exactly does that say about its floating point performance? Running SpecIntRate, the FP unit can be shut down, and there are very few, if any, 64-bit operations in SpecIntRate. I doubt there is a single 64x64==>128 bit multiply or a single 128 bit/64 bit divide, maybe not even 64+64 bit. So 2/3 of the CPU is shut down. Throw in a real multitasking scenario and the FPU never shuts down and performance per watt drops by 50%. Look at the benchmark suite used by Anandtech, and less than 1/4th of it is integer processing. Less than 1/4. re: Everything I´ve seen so far (and that´s now a variety of sources) indicates a rather huge advantage [in SPECintrate]... I think Pentium M´s surprisingly high Specint performance already gives you a first, faint hint of the potential. Petz

To: KeithDust2000 who wrote (169744)	8/23/2005 6:51:12 PM
From: Dan3	Respond to of 275872

Re: I think Pentium M´s surprisingly high Specint performance already gives you a first, faint hint of the potential. Not as much potential as the promised 5ghz Prescott, mind you... But lots of potential promised, nonetheless. Did you note that 1/2 of that increase comes from going from half the rack slots left empty for better cooling, to fully populating the rack?