Updated: Aug 11: There is now a web page with details:
A common question we get is why should I buy Tesla instead of GeForce.
Here are some things to consider, written with Tesla 20-series / Fermi products in mind:
Tesla 20-series (Fermi-based) products are designed for high performance
scientific and technical GPU computing.
They thus have features, testing, and support over and above our consumer
GeForce GTX 470 and 480 (Fermi-based) products such as:
- Double precision is 1/2 of single precision for Tesla 20-series, whereas double precision
is 1/8th of single precision for GeForce GTX 470/480
- ECC is available only on Tesla
- Tesla 20-series has 2 DMA Engines (copy engines). GeForce has 1 DMA Engine. This
means that CUDA applications can overlap computation and communication on Tesla using
bi-directional communication over PCI-e.
- Tesla products have larger memory on board (3GB and 6GB)
- Cluster management software is only supported on Tesla products
- The TCC (Tesla Compute Cluster) driver for Windows is only supported on Tesla
- OEMs offer integrated workstations and servers with Tesla products only
- HPC ISV software is tested, certified, and supported only on Tesla products
- Tesla products are built for reliable long running computing applications and
undergo intense stress testing and burn-in. In fact, we create a margin in
memory and core clocks (by using lower clocks) to increase reliability and long life.
- Tesla products are manufactured by NVIDIA and come with a 3-year warranty
- Tesla customers receive enterprise support and have higher priority for CUDA bugs
and requests for enhancements
- Tesla products have long availability cycles ranging from 18 to 24 months and NVIDIA
gives its customers a 6 month EOL notice before discontinuing a Tesla product.
Knowledgebase entry that will kept up to date