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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: Tenchusatsu who wrote (42983)	12/8/1998 1:10:00 PM
From: Jim McMannis	Read Replies (2) \| Respond to of 1572506

Ten, RE:"I still don't see anything different in the K7"... What about the 200Mhz memory bus...? Jim

To: Tenchusatsu who wrote (42983)	12/8/1998 1:14:00 PM
From: Scumbria	Respond to of 1572506

Ten, The transition from Pentium to Pentium Pro is a breakthrough. Out of order execution, register renaming, backside L2 cache, three-issue superscalar design, 12-stage pipeline, GTL+ processor bus, etc., etc. All these are features not present in the Pentium, and all of them helped contribute to a 30% increase in speed at the same clock speed for 32-bit applications. The increase in performance on the PII can be accounted for almost completely by the backside L2. The rest of the changes, though they sound "impressive", did essentially nothing for architectural performance. There are not many apps that show a 30% difference in performance between Pentium MMX and PII. The bigger jump occurred between Pentium and Pentium MMX, because of the larger L1. Clock for clock, the fastest x86 microprocessor is the Cyrix MII, which is only two way superscalar, and uses the socket 7 bus. Scumbria