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


To: Joe NYC who wrote (76512)4/4/2002 3:50:18 PM
From: combjellyRespond to of 275872
 
"I hope you are right about the changes to optimize access to L1 and L2."

All I can vouch for is my interpretation of the slides. Let's recap the pertinent slides.
amd.com
Slide 18 shows a total of 4ns from a L2 request to the data being written to the L1 and forwarded to the processor. Since this is assumed to be a 2GHz processor, that tells me 8 cycles for L2 access. Again, considering the Athlon and the P4 both take 20 some odd to do the same thing, it's a phenomenal change from the present. With an 8 cycle L2 latency, then a true dual port on the L2 and higher bandwidth makes more sense than they did with a 20 cycle L2. I don't know for a fact that they have done either one of these, but...