Which of these two HD 4850's is best?
http://www.novatech.co.uk/novatech/specpage.html?SAP-4850 or http://www.novatech.co.uk/novatech/specpage.html?NOV-4850
http://www.novatech.co.uk/novatech/specpage.html?SAP-4850 or http://www.novatech.co.uk/novatech/specpage.html?NOV-4850