EVGA has just released a new non-reference GeForce GTX570 card that doubles the onboard memory to an impressive 2560MB, but maintaining most of the other specs.
In addition,the graphics card features 2560MB GDDR5 memory,core/Shader/memory clock of 732MHz/1464MHz/950MHz(data rate of 3800MHz),provides dual-DVI,a HDMI and a DisplayPort connectors.
via EVGA Unleashes GeForce GTX 570 With 2.5GB Memory – Expreview.com.
Obviously the drivers are different, but by the raw numbers this is close to a C2050, and better than a Quadro 5000. For $400? Wow.