A GPGPU comparison (K20, 7970, GTX680, M2050 & GTX580)

I found a nice GPGPU comparison on a blog. It's very interesting as it exposes some practical benchmark results of all the latest GPUs in market in a range of 4 problems of different nature (bandwidth limited or compute intensive).

The GPUs compared are:

1. NVidia Tesla K20
2. NVidia GTX 680
3. NVidia Tesla M2050
4. AMD HD 7970

The 4 problems are:

1. Digital Hydraulics
2. Ambient Occlusion
3. Running Sum
4. Geometry Sampling

The results as presented are illustrated bellow:

As can be seen, the Keplel architecture is not as great as it was expected (at least the compute-optimized K20 chip). The older Fermi architecture seems to sustain a decent performance. In addition, the AMD GPU seem to be a good opponent exposing the benefits of the Southern Islands architecture in compute applications.

For the original full article click here:
http://wili.cc/blog/gpgpu-faceoff.html