"The core speed on the HIS HD 4850 512MB GDDR3 Video Card is 625MHz and the 512MB of GDDR3 256 bit memory is 2GHz DDR. It comes with 800 stream processing units for vertex, pixel and geometry data, 40 texture units and 16 raster operators. The texture fill rate is 25GPixels/sec , the pixel fill rate is 10GPixels/sec and the memory bandwidth is 64GB/s. If your 're in the market for a great video card that won't break the bank and performs very well, has reasonable temperatures and an excellent cooler, this is it! Watch the video to find out more." ~3dGameMan.com