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I wanted to see how Itanium was placing in the Top500 against one of the main competitors, IBM Power, so I drew up a little table. In terms of Gflops/Processor Itanium stacks up very well against the competition. I believe I've identified the IBM power offerings for comparison (in blue).
| Rmax Sum (Gflops) | Processors | Rmax/Processor | |
| Power4+ | 97098 | 25194 | 3.85 |
| PowerPC 440 | 364691 | 169984 | 2.15 |
| Power4 | 31092 | 11552 | 2.69 |
| PowerPC | 64377 | 11636 | 5.53 |
| Power5 | 35581 | 6216 | 5.72 |
| Power | 23574 | 26920 | 0.88 |
| All Power | 616413 | 251502 | 2.45 |
| IBM Power | 187345 | 69882 | 2.68 |
| Itanium 2 | 237385 | 50668 | 4.69 |
| Pentium 4 Xeon | 398724 | 135348 | 2.95 |
| Xeon EM64T | 146050 | 35214 | 4.15 |
| Intel | 782159 | 221230 | 3.54 |
Note there are several minor generations of Itanium's lumped together, whilst the Power line gets a bit more granularity thanks to different versions. Of course the great thing about the Top500 results is you can get a different result depending on what sort of press release you want to write today, so the whole thing should be taken with a grain of salt.
posted at: Fri, 24 Jun 2005 16:31 | in /code/arch | permalink | add comment (0 others)
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.