AMD Opteron Processor Faster than Xeon in SQL Database Test

White paper with detail test results: [Word Format] [PDF Format]

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Summary of Test Results
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Transactions/Minute Xeon (Woodcrest) Transactions/Minute Opteron Opteron
Percent Faster
25 13386 13388 0 RTE
50 15460 16154 4 CPU
75 15263 15706 3 CPU
100 14674 15526 6 CPU
150 10450 10894 4 Mixed
200 7865 7933 1 Disk
250 7767 7818 1 Disk
300 7703 7748 1 Disk
350 7628 7621 0 Disk
400 7550 7560 0 Disk
450 7436 7477 1 Disk
500 7472 7486 0 Disk

Chicago, IL, May 4, 2007 -- An AMD Opteron processor-based server delivered up to 6 percent higher throughput when compared to an Intel Xeon (Woodcrest) based server while processing SQL Transactions against a Relational Database, according to Neal Nelson & Associates, a Chicago area computer performance consulting firm.

"These test results seem to support recent speculation that the AMD Opteron processor architecture is superior to the Xeon architecture for applications with a large code footprint and complex execution profile" observed Neal Nelson, president of the independent consulting group.

The test was run with the Neal Nelson SQL Transaction Benchmark which generates traffic from up to 500 simultaneous World Wide Web clients and submits the transactions to a server system. It stresses all major sub-systems in a computer's architecture including memory access, inter-process communication, context switching, disk I/O and network I/O.

The two servers in this test were configured with the same clock speed and memory size. They were tested with the same disk drives and operating systems which had been loaded from the same media. The machines were set up with the same system tunables and ran the same application code which had been compiled by the same compiler with the same compiler options.

Nelson's firm has a long history of performance consulting to some of the world's largest computer customers including the U.S. Army, U.S. Navy, Internal Revenue Service, McDonalds, WalMart and Federal Express. His performance measurement expertise has assisted with purchasing decisions for billions of dollars worth of computer equipment.

The Neal Nelson benchmarking laboratory is available to commercial and government users for independent computer performance tests.

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