128-bit GDDR5 memory interface

MicrosoftR DirectXR 10.1 support

Unified superscalar shader architecture

High performance vertex cache

Programmable tessellation unit

Accelerated geometry shaderpath for geometry amplification

Memory read/write cache for improved stream output performance

Multi- more...

The ATI Radeon HD 4800 Series GPUs bring the power of graphics ?supercomputing? to gamers, setting a new standard for visual computing. Redefine the way you play and take HD gaming to the extreme with best-in-class performance. The new TeraScale graphics engine delivers an immersive, cinematic gamin more...

The ATI Radeon 4890 graphics card is ATI's new single core flagship graphics card. 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 more...

or £112.99 delivered if you have:

* OcUK Forums members who have 250 or more posts and have been registered for over 90 days, or
* OcUK Forums members who have been registered for over 12 months and made at least 100 posts


The SAPPHIRE HD 4870 TOXIC Edition features the award winning Sapp more...

what a price !!!! :-)


Get the best graphics performances with this Radeon HD4890! The Radeon HD4890 is designed for demanding users and gets its power from the 850 MHz chipset and 1 GB DDR5 standard memory. Thanks to the HD4890, you're guaranteed more frames per second when playing the latest gene more...