Statistics
Below are the results for The Green500 List released in February 2008 grouped by 'Processor Family'.
(You can click on a column header to change the sorting order.)
| Processor Family | Count | Share | Total Power (kW) | Average MFLOPS/W | Average Green500 ranking |
| Alpha | 1 | 0.2% | 3,800 | 4.00 | 500 |
| AMD x86_64 | 79 | 15.8% | 39,581 | 31.13 | 384 |
| Cray | 2 | 0.4% | 1,032 | 30.00 | 415 |
| Intel EM64T | 320 | 64% | 62,155 | 61.00 | 223 |
| Intel IA-32 | 13 | 2.6% | 3,126 | 42.08 | 279 |
| Intel IA-64 | 21 | 4.2% | 17,117 | 39.43 | 317 |
| NEC | 2 | 0.4% | 7,840 | 6.00 | 497 |
| Power | 61 | 12.2% | 20,798 | 125.34 | 174 |
| Sparc | 1 | 0.2% | 520 | 13.00 | 488 |