For those of you eagerly awaiting the 40nm 4770 from ATi the guys at VRZone have a nice treat for you.
They have managed to grab some slides from http://www.it168.com and these slide would seem to show that the sub $100 4770 will be almost as fast as the HD4850.
When reading you will see that the percentage labels on the side of the graph are very misleading, it looks like the percentages on the actual lines and should be what you go by to determine performance.
Read more here.
The guys at it168.com tried out Battleforge, Company of Heroes, Devil May Cry 4 and Far Cry 2 and the card is certainly really close to HD 4850 at least if those percentage is right. We must note that these are the first benchmarks and you should take these with a grain of salt. We heard from some sources that the HD 4770 will end up faster than Nvidia's Geforce 9800GT 512MB and we also heard that it could beat the GTS 250 in some cases.