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chipguy

05/11/05 12:56 PM

#55905 RE: Tenchu #55903

I only follow TPC-C, where I notice that 4-way DC Opteron has the best score of all 4-way x86 solutions.

This statement is ambiguous. Do you mean 4 CPU or 4 socket?

I presume the latter as I haven't seen any 4 CPU TpmC scores
yet for DC Opteron.

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Dan3

05/11/05 11:14 PM

#55933 RE: Tenchu #55903

Re: ,i>I guess it depends on which benchmark you choose to highlight.

I should have specified the - basic? Traditional? Original? Int and Float SPEC scores as the ones I was referring to.

Opteron generally does very well in apples to apples database tests, but database spec tests are also tests of the disk subsystem, etc. So a test comparing, say, an Opteron equipped with a 400 drive fiber channel disk array to, say, an Itanium wth a 12 drive SCSI array would not be fair to the Itanium and would not provide an accurate comparison of the two platforms.

TPC-C results have to be looked at carefully. For example, comparing two systems from the same company, both running windows and SQL Server Enterprise, an HP DL-585 (Opteron 4-way) does 187,296 in TPC-C at $2.04 per unit of performance. http://www.tpc.org/tpcc/results/tpcc_result_detail.asp?id=105042002 while an Integrity 5670 (Itanium 4-way) does 121,065 in TPC-C at $4.49 per unit of performance. http://www.tpc.org/tpcc/results/tpcc_result_detail.asp?id=103090501 And that's with the Opteron running 32-bit Windows and Database, while the Itanium is running 64-bit. Supposedly, running the Opteron as a 64-bit will speed it up. We'll have to wait and see. But that's also a test of the latest Opteron vs. Itanium's with only 3 times as much cache.

So here's a test of the very latest Itanium, with 4 1/2 times as much cache, running a OS and database that always gives better scores, all else being equal.

A 4-way Itanium Integrity rx4640 does 161,217 at $3.94 per unit of performance when running Red Hat and Oracle http://www.tpc.org/tpcc/results/tpcc_result_detail.asp?id=104110801

The Itanium is still slower, and costs almost exactly 2/3's more than the Opteron.

I spent some time looking through the HP's for an Itanium 8-way, but couldn't find a TPC-C score for one. Do you have a link handy?