AMD's new HD 4670 has successfully positioned itself in the sub $100 range offering great price/performance, performance/watt and sufficient gaming power for casual gamers. The card which uses a chip that is derived from the RV770 will easily let you play all titles at resolutions up to 1280x1024. If you plan to go beyond that you will have to sacrifice some detail settings. Compared to the previous generation product, the HD 3650, the performance has more than doubled, especially at higher resolutions. AMD has also included all the media PC features that we know from the HD 4800 Series like UVD2, HDMI via adapter, integrated 7.1 audio and HDCP. Together with the low fan noise of the Powercolor heatsink this makes the card an excellent candidate for a media PC which will occasionally be used for some gaming. If you are just looking for a media PC card, the HD 3450 still remains your best choice - or you wait for AMD's upcoming RV710 which will be released later this year.
Compared to NVIDIA's offering in this market segment, the HD 4670 can easily take on the GeForce 9400 GT and 9500 GT. Only the GeForce 9600 GSO and GT are faster for less than 100 dollars. Price/performance wise the HD 4670 is the card of choice if you are looking for the best bang for the buck and don't want to buy the GeForce 9600 GT.