12-18-2009, 08:33 PM
The 8400gs has pixel shader model of 4, while x1600 has 3, they both have nearly same core speed and wouldn't look at speed in this case, they both have 512 mb of video ram. The release date of 8400gs is on 2007 and newer than x1600. 8400gs has HD technology which is an advance. SO, in terms of specifications i find 8400gs is better. And in terms of performance and practical use have no idea because i never used these two cards before, i still have an old ati driver.