Based on the 4870 architecture this card features a new GPU and much faster GDDR5 memory.
Clocking in at 850MHz core speed and 3900MHz out of the box this card is anywhere between 10-15% faster than the previous 4870 graphics card.
In our own testing we found these cards to perform extremely well but things start to get really exciting when you use the supplied ATI Overdrive utility within the catalyst drivers.
You can buy this PowerColor HD 4890 for £198.95. You can also find similar deals from our online price comparator.