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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 249.66

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3:59 PM EST

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To: KeithDust2000 who wrote (169744)	8/23/2005 6:39:53 PM
From: Petz	Read Replies (1) 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

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