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

To: dougSF30 who wrote (239949)	9/7/2007 2:38:43 AM
From: wbmw	Respond to of 275872

Re: What sort of fantasy is that??? I have yet to see Petz offer a credible explanation for any of his wildly unrealistic claims. I've given him the opportunity to convince me, but all he does is point to AMD PR, and then add on top of that an even more optimistic projection.

To: dougSF30 who wrote (239949)	9/7/2007 1:15:36 PM
From: Petz	Read Replies (2) \| Respond to of 275872

Intel's dirty little secret -- poor frequency scaling re: AMD folks have publicly said that cHT is a problem w.r.t. higher frequencies? Yea, maybe at 4 GHz. Doesn't seem to be a problem at 3.2 GHz, does it? Ever heard of 8224SE? are you ignoring the fact that he's comparing 4-socket systems? Tigerton vs. 4S Barc? I can't get the Chinese site to translate, but if I were you I wouldn't take much comfort from "clock-for-clock" comparisons at 2 GHz. Here's the scaling percentages for Clovertown from 2 GHz to 3 GHz: SPECint 67% SPECfp 56% from 2 GHz to 2.67 GHz -- no results for 3 GHz! SPECint_rate 52% SPECfp_rate 36% note: all above based on Intel submission using Supermicro motherboard. 2-socket numbers, 4 socket undoubtedly worse. Yes folks, it's true. Even using SPECint_rate, which the AMD bashers here claim is a good predictor of server performance, you get a 26% performance increase by increasing the clock 50%! Floating point? Forget about it! Even single thread, single core scaling is abysmal. Anyone who buys Intel's two highest speed grades, which also require more power, is stupid. So Intel "just as fast" at 2 GHz may translate into Intel 20% behind at 3 GHz not many days from now. Petz