Statistics
Below are the results for The Green500 List released in November 2007 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% | 39,529 | 31.16 | 379 |
| Cray | 2 | 0.4% | 1,032 | 30.00 | 410 |
| Intel EM64T | 320 | 64% | 62,923 | 59.33 | 219 |
| Intel IA-32 | 13 | 2.6% | 3,126 | 42.08 | 275 |
| Intel IA-64 | 21 | 4.2% | 21,663 | 27.76 | 405 |
| NEC | 2 | 0.4% | 7,840 | 6.00 | 497 |
| Power | 61 | 12.2% | 20,798 | 125.34 | 171 |
| Sparc | 1 | 0.2% | 520 | 13.00 | 488 |