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


To: Saturn V who wrote (82704)12/12/1999 1:15:00 AM
From: Elmer  Read Replies (1) | Respond to of 1572220
 
Re: "I got it from the Microprocessor Design Report in the last few months when it covered the Coppermine. I was just as surprised as you are, since a half speed cache appears to be a step backward. (It was the October or November issue, and I could fax it you)."

Wrong Saturn. The CuMine L2 cache is full core speed. It's well documented. Check the Intel website.

developer.intel.com

"Versions that incorporate 256 KB Advanced Transfer Cache (on-die, full-speed level 2 (L2) cache with Error Correcting Code (ECC)[CuMine] or versions that incorporate a discrete, half-speed, 512 KB in package L2 cache with ECC[Katmai].

EP



To: Saturn V who wrote (82704)12/13/1999 12:42:00 AM
From: Petz  Read Replies (1) | Respond to of 1572220
 
Saturn, re:<full speed vs. half speed cache>

Well, if Intel's web site says its full speed, I guess it is. However, I would love to have seen how the CuMine would have performed with half speed cache. Doubling (or was it quadrupling?) the data width to the cache and then halving the speed would be an interesting tradeoff, giving slightly higher latency (but still better than a half speed external cache, for sure), and equal or double throughput.

Petz