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To: Scumbria who wrote (80640)5/9/1999 7:01:00 PM
From: Tenchusatsu  Read Replies (1) of 186894
 
Scumbria, check out Intel's performance brief on the Pentium II Dixon:

developer.intel.com

As you know, Intel replaced the 512K of off-chip L2 cache in the Mobile Deschutes with 256K of on-die L2 cache in Dixon. This led to a 5% speedup in Business Winstone 99. SpecInt95 was even better, a 7% speedup, and SpecFP95 saw a 13-14% speedup. However, MultiMediaMark 99 saw no difference and 3DMarkCPU saw only a miniscule improvement.

So in essence, the benefits of moving from a 512K off-chip L2 cache to a 256K on-die version will vary widely with the application. Toss Rambus and AGP into the equation, and you'll have quite a complex performance model.

Tenchusatsu
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