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Yes, clock for clock the SD beats the Venice. SD also beats any 512k cache chip IMO in how your computer responds to you, it provides more 'snap' when navigating your way through Windows. So that's a decision you'll have to make for yourself regarding what's more important, at stock speeds a 3800+ may complete an intensive task a few seconds earlier, but a 3700+ provides a smother, silkier feel to the overall experience. I've tried both the 512k and 1MB varieties of A64 and that's what I have to tell you about them. I got a SD and juiced it up, and I'm very happy with it. I'll be keeping it for a while.