Yes, the core has gone some optimizations such as fiing coldbug and allowing high clocks(dunno if it is due to 45nm or an actual march fix). IPC-wise there is not that much, except 3x bigger L3 and lower latencies(?).Originally Posted by Chad Boga
Yes, the core has gone some optimizations such as fiing coldbug and allowing high clocks(dunno if it is due to 45nm or an actual march fix). IPC-wise there is not that much, except 3x bigger L3 and lower latencies(?).
Do you have some info to link on that? It would be nice to know more about the IPC changes.
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Nothing much, based on rumours AMD saying "up to 25 %" IPC improvements for Shanghai over Barcelona(NOT for Deneb over Agena, however!). Some leaked Deneb tests whow approx. 5-10 % increases over Agena(C1 AFAIK). It is hard to say how much it is faster "on average" because it is solely up to the tested apps. E.g. I could test only with programs which yield biggest gains and claim that "+15 % increases" whereas usual desktop apps(E.g. WinRAR, divx/video en/decoding, photo editing, audio en/decoding etc) show less than 5 % increases on average (NOTE: I am not claiming that those apps would show less than 5 % IPC improvement, that is just a simplified example! And I have no clue about the IPC improvements on different apps, other than that it should be from 5-10 %, quite average I'd say, sometimes less, sometimes more.).
I'd say that +7 % IPC improvement is slightly pessimistic one. I'd look forward to 8-10 %, but it varies between apps so much that it is impossible to prove/tell/check anyway.
Last edited by Calmatory; 11-24-2008 at 07:46 AM.
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