Two months ago I wrote a blog post "ATI and NVIDIA: Making Friends out of Enemies" where (among other things) I wrote:

Hardware acceleration of password recovery has been a hot topic for quite some time already. We were the first to adopt widely available graphic cards for this purpose and we’re proud of this. Today I’d like to share some thoughts on hardware acceleration for password recovery, its past, present, and future. I will also cover the most frequently asked questions regarding GPUs.

Considering a (new) AMD/ATI or NVIDIA video card for password cracking with Wireless Security Auditor or Distributed Password Recovery (to get the most from GPU acceleration technology — at an affordable price)? Read the Best Graphics Cards For The Money: May ’09 at Tom’s Hardware. I especially like the Graphics Card Hierarchy Chart.