The VTX3D HD 7870 Black is based on AMD`s recent Tahiti LE GPU. It comes with 1536 shaders and very decent clock speeds. As a result the card is 8% faster than HD 7870, almost as fast as HD 7950, which costs significantly more."
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips