Best PCI Express (PCIe) Card For ~£55:
Radeon HD 6670 DDR3
Good 1680x1050 performance in most games
| Radeon HD 6670 DDR3 | |
|---|---|
| Codename: | Turks |
| Process: | 40 nm |
| Universal Shaders: | 480 |
| Texture Units: | 24 |
| ROPs: | 8 |
| Memory Bus: | 128-bit |
| Core Speed MHz: | 800 |
| Memory Speed MHz: | 800 (1600 effective) |
| DirectX/Shader Model: | DX 11/SM 5.0 |
| Max TDP: | 66 W |
We're still sad that the Radeon HD 5670 was discontinued. Although it's true that the Radeon HD 6670 DDR3 has a more capable GPU featuring a 25 MHz-faster core clock, four more texture units, and 80 additional shader cores, the 5670 wields more than two times the memory bandwidth thanks to its 1 GHz GDDR5 subsystem.
Nevertheless, without any significant competition, the Radeon HD 6670 DDR3 assumes our £55 recommendation.
Best PCIe Card For ~£80: tie
Radeon HD 7750
Good 1920x1200 performance in most games, some with lowered detail
| Radeon HD 7750 | |
|---|---|
| Codename: | Cape Verde |
| Process: | 28 nm |
| Universal Shaders: | 512 |
| Texture Units: | 32 |
| ROPs: | 16 |
| Memory Bus: | 128-bit |
| Core Speed MHz: | 800 |
| Memory Speed MHz: | 1125 (4500 effective) |
| DirectX/Shader Model: | DX 11.1/SM 5.0 |
| Max TDP: | 55 W |
The Radeon HD 7750 is the fastest graphics card you can get right now that doesn't require an auxiliary power input; it draws all that it needs from a 16-lane PCIe slot. If you're upgrading an older machine with limited power supply capacity, that's an attractive point to consider.
And it's a decent performer, too, particularly in light of AMD's most recent Catalyst driver packages.
Read our full review of AMD's Radeon HD 7750 for more information on the card and its accompanying architecture.
GeForce GTX 550 Ti
Good 1920x1200 performance in most games, some with lowered detail
| GeForce GTX 550 Ti | |
|---|---|
| Codename: | GF116 |
| Process: | 40 nm |
| Universal Shaders: | 192 |
| Texture Units: | 32 |
| ROPs: | 24 |
| Memory Bus: | 128-bit |
| Core/Shader Speed MHz: | 900/ 1800 |
| Memory Speed MHz: | 1025 (3075 effective) |
| DirectX/Shader Model: | DX 11/SM 5 |
| Max TDP: | 116 W |
The GeForce GTX 550 Ti was overpriced when Nvidia introduced it (compared to the Radeon HD 5770, at least). In light of recent price drops, however, it's able to contend with AMD's Radeon HD 7750. The previous-gen board does use more power than the AMD card, but its performance is also better as well.
Read our full review of Nvidia's GeForce GTX 550 Ti for more information on the card and its accompanying architecture.
http://www.dabs.com/products/asus-ati-radeon-6670-hd-810mhz-1gb-pci-e-hdmi-7MMC.html?q=6670&src=16
For an extra £, you get 10-20% better performance.
Easy decision.
You mean 384 bits.
Saying that, You can get a 650ti 1GB from scan.co.uk for £105 now.