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

To: dale_laroy who wrote (63459)	11/12/2001 11:43:20 AM
From: fyodor_	Respond to of 275872

Dale: According to Paul DeMone's tests, the TBird scales at a 6.3% increase in performance for every 10% increase in clock rate, versus 7.9% for every 10% for Willamette. I can not verify the actual percentage, but it is fairly obvious that performance does not scale directly with clock rate. It's hard to know exactly what is meant by "3x as fast as a 1GHz Athlon", but if we take a look at the "2GHz Hammer with 1MB L2 cache" SPECint claims, it doesn't seem too far fetched that what Jerry meant as simply something like SPECint performance would be 3x a 1GHz Athlon. With regard to the performance scaling, the dominating factor quickly becomes (effective) memory bandwidth, so the scaling factor for Hammer should be quite tremendous (esp. the "dual-channel" version). -fyo