So is this 1gb 7850:
http://www.ebay.co.uk/itm/MSI-Radeon-HD-7850-OC-Version-1GB-Graphics-Card-PCI-E-3-0-2-GAMES-/321229696472?pt=UK_Computing_Computer_Components_Graphics_Video_TV_Cards_TW&hash=item4acac82dd8
better value than a 1gb 7790 off amazon:
http://www.amazon.co.uk/Sapphire-Graphics-Express-Display-Technology/dp/B00BP5VCPQ/ref=sr_1_2?s=computers&ie=UTF8&qid=1382216389&sr=1-2&keywords=amd+radeon+7790
http://www.ebay.co.uk/itm/MSI-Radeon-HD-7850-OC-Version-1GB-Graphics-Card-PCI-E-3-0-2-GAMES-/321229696472?pt=UK_Computing_Computer_Components_Graphics_Video_TV_Cards_TW&hash=item4acac82dd8
better value than a 1gb 7790 off amazon:
http://www.amazon.co.uk/Sapphire-Graphics-Express-Display-Technology/dp/B00BP5VCPQ/ref=sr_1_2?s=computers&ie=UTF8&qid=1382216389&sr=1-2&keywords=amd+radeon+7790