Most energy-efficient supercomputers
18 systems deliver at least 55 GFLOP/s per watt on HPL, led by Portage at 66.22. Efficiency is Rmax divided by the power each site reported for its benchmark run; sites that do not report power are not ranked.
| Portage | 66.221 | 851 | Hewlett Packard Enterprise | 24.51 | 3701 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
|---|---|---|---|---|---|---|---|---|
| HPC7 | 65.431 | 61 | Eni S.p.A. | 571.51 | 8,7351 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| Hunter | 64.651 | 761 | HLRS - Höchstleistungsrechenzentrum Stuttgart | 31.681 | 4901 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| JUPITER Booster | 63.321 | 51 | EuroHPC/FZJ | 1,0001 | 15,7941 | NVIDIA GH200 Superchip | InfiniBand | 2026-11-11 |
| rzAdams | 62.841 | 871 | DOE/NNSA/LLNL | 24.381 | 3881 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| Viper-GPU | 62.21 | 771 | Max-Planck-Gesellschaft MPI/IPP | 31.11 | 5001 | AMD Instinct MI300A | InfiniBand | 2026-11-11 |
| Shaheen III - GPU | 62.021 | 221 | King Abdullah University of Science and Technology | 122.81 | 1,9801 | NVIDIA GH200 Superchip | Slingshot | 2026-11-11 |
| Roihu-G | 61.681 | 911 | CSC (Center for Scientific Computing) | 23.51 | 3811 | NVIDIA GH200 Superchip | InfiniBand | 2026-11-11 |
| Tuolumne | 61.441 | 141 | DOE/NNSA/LLNL | 208.11 | 3,3871 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| DAEDALUS | 61.431 | 311 | EuroHPC/GRNET (National Infrastructures for Research and Technology) | 85.691 | 1,3951 | NVIDIA GH200 Superchip | Slingshot | 2026-11-11 |
| Arrhenius GPU | 61.421 | 421 | EuroHPC/NAISS (National Academic Infrastructure for Supercomputing in Sweden) | 66.821 | 1,0881 | NVIDIA GH200 Superchip | Slingshot | 2026-11-11 |
| El Dorado | 61.281 | 411 | Sandia National Laboratories | 68.021 | 1,1101 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| Alps | 61.051 | 101 | Swiss National Supercomputing Centre (CSCS) | 434.91 | 7,1241 | NVIDIA GH200 Superchip | Slingshot | 2026-11-11 |
| El Capitan | 60.941 | 21 | DOE/NNSA/LLNL | 1,8091 | 29,6851 | AMD Instinct MI300A | Slingshot | 2026-11-11 |
| Venado | 59.271 | 261 | DOE/NNSA/LANL | 98.511 | 1,6621 | NVIDIA GH200 Superchip | Slingshot | 2026-11-11 |
| Setonix – GPU | 56.941 | 811 | Pawsey Supercomputing Centre, Kensington, Western Australia | 27.161 | 4771 | AMD Instinct MI250X | Slingshot | 2026-11-11 |
| HPC6 | 56.481 | 81 | Eni S.p.A. | 477.91 | 8,4611 | AMD Instinct MI250X | Slingshot | 2026-11-11 |
| PERUN | 55.61 | 1451 | Slovak Academy of Sciences (SAV) | 13.91 | 2501 | NVIDIA GH200 Superchip | InfiniBand | 2026-11-11 |