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Subject: Re: IA-64 vs OOOE (attn Taylor, Hyatt)

Author: Eugene Nalimov

Date: 21:04:34 02/15/03

Go up one level in this thread


On February 15, 2003 at 21:37:19, Tom Kerrigan wrote:

>On February 13, 2003 at 15:46:26, Eugene Nalimov wrote:
>
>>Some time ago I wrote in the (lost) thread: please compare Itanium2 not with
>>P4/Athlon/etc., but with server CPUs. I.e. with 4-way Xeons, Power4, etc.
>
>I don't know how I got dragged into talking about x86 at all. Everybody seems to
>assume that I want to prove that the P4 is better than the I2 in all cases no
>matter what. The comparison I'm interested in is Opteron vs. I2...
>
>>benchmarks it resembles real-world server-like code a most: it's (relatively)
>>large, execution time not spent in several functions but heavily spread across
>>lot of functions, lot of loops across pointer chains, lot of calls,
>>unpredictable branches, etc.
>
>In other words, it's suited to chips with lots of cache or low latency memory
>and low branch mispredict penalties. Opteron addresses all of these issues.

Why it should be better than Power4+?

Thanks,
Eugene

>-Tom



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