The article “Nvidia Tesla K20 vs Intel Core i7: Speed Comparison”, published on the company's website, and, at the request of many readers, additional technical information regarding the computations performed on the NVIDIA Tesla K20 and NVIDIA Geforce GTX 560 Ti (see the original post on Nvidia web site) has been placed here on the corporate blog.
The first benchmark tests on the heat problem with phase transition (Stefan problem) calculation were executed for a sphere with a radius of 10 meters for 364 days. The summary table below gives the computational time taken by the corresponding graphics accelerator.
| Number of cells along each axis X, Y, Z | 100 | 150 | 200 | 250 | 300 | 350 |
| Number of nodes (millions) | 1,03 | 3,44 | 8,12 | 15,81 | 27,27 | 43,24 |
| Time in seconds for NVIDIA Tesla K20 | 7 | 52 | 212 | 637 | 1625 | 3394 |
| Time in seconds for NVIDIA GeForce GTX 560 Ti | 10 | 75 | 311 | 923 |