Today Neoseeker has reviewed ATI's latest, the mid-range HD 4670.
A quote from the article:
>> ATI HD 4670 Review
This video card has a great host of features, and using a rapidly aging video card, say a 7800 GT or HD 2600 Pro (or something along those lines) this card would make a great upgrade, being offered initially for about $80. The HD 4670 is a huge improvement over the last generation's mid-range offerings, from both NVIDIA and ATI, and this is well achieved as the card utilizes that less expensive 'mid-range' 128 bit memory interface, but still delivers.
>> ATI HD 4670 Review