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Powercolor ATI Radeon HD4890 1GB GDDR5 TV-Out Dual DVI HDMI PCI-Express graphics cards
£159.54 Inc VAT    £132.95 Ex VAT
Product Name: Powercolor ATI Radeon HD4890 1GB GDDR5 TV-Out Dual DVI HDMI PCI-Express graphics cards
Manufacturer: Powercolor
Part Number: AX4890 1GBD5-HM

Powercolor ATI Radeon HD4890 1GB GDDR5 TV-Out/Dual DVI HDMI PCI-Express - Retail

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 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. Early rumous have seen cards reaching insane speeds as high as 1000MHz core and 4800MHz memory. In our own testing we found the cards remained stable upto 990MHz core and 4600MHz memory which results in nearly 30% performance improvement over the 4870 cards and performance was incredibly close and sometimes matching GTX 285 performance levels. Now Novatech does not guarantee that these cards will overclock the same for everyone but it seems safe to say cards should happily run at 950MHz core area and 4400MHz memory. Needless to say ATI have a winner on their hands with the 4890 graphics cards.

- ATI Radeon HD 4890 GPU @ 850MHz
- 1024MB GDDR5 Memory @ 3900MHz
- ATI advanced cooling solution
- 24x custom filter anti-aliasing (CFAA) and high performance anisotropic filtering
- PCI Express 2.0 support
- ATI CrossFireX Multi-GPU Technology
- Microsoft DirectX 10.1 support
- Shader Model 4.1
- ATI Avivo HD video and display technology
- Unified Video Decoder 2 (UVD) for Blu-ray and HD Video
- Built-in HDMI with 7.1 surround sound support
- On-chip HDCP

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