Sapphire Radeon HD 4850 Video Card The new version of the HD 4850 has been production engineered by SAPPHIRE to deliver some benefits to the end user. The fine-tuned PCB layout and optimized cooler design makes for more efficient and quieter operation. The ATI Radeon HD 4850 GPU brings the power of graphics "supercomputing" to gamers, setting a new standard for visual computing. Redefine the way you play and take HD gaming to the extreme with best-in-class performance. The new TeraScale graphics engine delivers an immersive, cinematic gaming experience. Add this GPU to your PC and watch Blu-ray movies and play HD content with incredible visual fidelity. Do it all with break-through efficiency that doesn't compromise performance.