STREAM benchmark for various Macs

From: John McCalpin (
Date: Fri Oct 29 1999 - 06:38:58 CDT

STREAM benchmark for various Macs

This page lists runs of the STREAM benchmark for testing memory bandwidth. The version run on these machines is the "604opt" Mac executable. If you would like to see the results for the other executables, just email me and I'll send them to you. I might put them up on the page, but that'll be later.

The PowerBook had MathLibMoto which may or may not have affected the scores any. Maybe I'll find out if it actualy does have an affect. There are LinuxPPC scores on the PowerBook as well, but I haven't gotten around to putting them up yet. I might eventually put up a Dell 233MHz PPro (EDO 66MHz), a 75MHz EDO based 375MHz AMD K6-2 system, and the same system with 100MHz SDRAM too.

I will rearrange the table so it looks better when I get other scores in. I just whipped this page up in a few minutes based on the relatively few scores I've collected.

Test values are in MB/s.

Machine processor:bus PowerMac G3 400:100MHz PowerMac G3 266:66MHz PowerBook G3 266:66MHz iMac Rev C 266:66MHz iMac Rev A 233:66MHz
Copy 233.4914 146.9103 132.3599 138.2230 137.8894
Scale 222.5236 143.3756 126.6549 138.1573 135.1665
Add 230.6473 132.2879 130.2525 128.8331 128.8833
Triad 212.9736 131.5087 121.2259 126.6056 125.6874


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