gramaton cleric wrote:
Back when i started looking at purchasing a processor AMD had 64's up to 3400+ and the higher level ones all had 1MB L2 cache. Now with more models released some of them have a mere 512KB L2 cache. Why would AMD do this and does the 1MB have a big advantage over 512KB?
If AMD makes a 1MB L2 cache CPU part os whose cache fails validation, they can just disable 1/2 of the cache and sell it as a 512K L2 model.
AMD is also making a straight 512KB L2 version of the Ath,on 64 (Newcastle) since it's die size is ~40mm^2 smaller, which increases the number of dies per wafer, increasing yeilds and therefore profits.
Plus, with the Athlon's cache architecture and the ODMC, the lack of cache hurts it far less than one would expect.