Bitcoin mining is essentially SHA-256 hashing.
According to the table at http://bitminer.info/, the Radeon 6970 ($330) is able to run bitcoin mining at 323 M-hash/s while the GTX 570 ($330) runs it at 105 M-hash/s. The Radeon is 3x faster.
An explanation for this is provided at https://en.bitcoin.i…an_Nvidia_GPUs?
The explanation states that the Radeon is faster not only on SHA-256 hashing, but on “all ALU-bound GPGPU workloads”. Further, it explains that Radeon has a particular advantage on SHA-256 hashing because it has an instruction for 32 bit integer right rotation, which NVIDIA GPUs do not have.
I’m wondering what the CUDA community’s take on this is. Is the Radeon really faster on “all ALU-bound GPGPU workloads” at a given price point? If so, what is NVIDIA faster on?