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

To: Petz who wrote (227252)	3/2/2007 1:21:03 PM
From: Ali Chen	Read Replies (1) \| Respond to of 275872

"OVER THE ENTIRE SPEC RATE BENCHMARK, "result" scales almost linearly in number of CPU's " You are not hearing me. Take Pete's example of a hi-tech company with 100 employees. 1 server, 100 workstations. Calculate potential revenue from the two product groups. 100 workstations is more than 1 server. Therefore, forget about servers, and forget about RATE portion of SPEC benchmarks. Purchases for productivity workstations are driven by performance of SINGLE APPLICATIONS, not multiple copies of the same application. Performance of multithreaded applications on multiple cores is not much different from single core performance, just look at Sun submissions, because threads have to be synchronized for the sake of application integrity, and stall a lot. It is different from boldly running multiple applications of the same kind who do not interact other than through cache thrashing and memory bandwidth contention. - Ali