"HD 4800 SERIES" content on TweakTown - Page 1We found 2 items for the tag: HD 4800 SERIESNEWSOverclocked HD 4870 with 1GB GDDR5 from PowerColorPCGamesHardware get the first peek.NEWSHD 4850 sparks AIB creativitySapphire HD 4850 Toxic seen out and about.