Mid-Range Video Card 8600 Roundup
 

Previously, in our April review of the XFX 8600 GT XXX, the 8600 GT
was shown to be a solid upgrade choice for someone with an aging,
under-performing GPU. Benchmarks indicated that the XFX 8600 GT XXX
vastly outperformed 6600 GT class cards, while offering only slight
performance gains over 7600 GT cards. However, if you consider that
the 8600's all utilize the new unified shader model, and with
PureVideo HD (for optimized Blu-Ray and HD DVD playback), as having
Coverage Sampling Antialiasing technology (which reduces the
processing strain of AA on your GPU), then going the 8600 GT/GTS route
makes a lot of sense. Especially when you can find 8600 GT's retailing
for only 10 or 20 dollars more than the 7600 GT's.

http://www.neoseeker.com/Articles/Ha.../8600_roundup/