XSReviews has reviewed the XFX 8800GTS 512MB graphics card
A quote from the article:
>> XFX 8800GTS 512MB Review
For many enthusiasts looking for a new GPU, it would seem best to wait for the 9 series which will be coming from nVidia over the next few months. However, what do you do if you happen to want something now, now, now? Well, the latest card from the green camp is the 8800GTS "refresh" with 512MB. Is it worth it's price tag? Let's find out.
>> XFX 8800GTS 512MB Review