GPU2 vs GPU3

There has been quite a buzz lately over which is better. Well I guess on paper it would seem the GPU3 is better. However, if you own a video card older then a the GTX4xx series you will see a PPD drop. Yes on 8 and 9 series cards there is a small PPD drop overall on the WUs. It only gets worse when you run the GPU3 client a GTX2xx card. To sum things up if you own anything older then a GTX4xx stick to the GPU2 client until WUs get more mature. Main difference is the newer client feature larger WUs which take longer for older cards to complete. The new client was mainly introduced for the higher powered GTX4xx sereis from Nvidia. If you have lag issues while folding and using your computer the newer version is said to eliminate this problem.