As is befitting of its 'TOP' status, ASUS' EN9800GTX TOP features some pretty significant clock speed bumps over a reference GeForce 9800 GTX. On the GPU core side of things, we get an 80MHz increase, with the chip's Stream Processors getting a bigger boost as the board's shader core is upped to 1840MHz, a 152MHz gain. Elsewhere, on the memory front, the 512MB of RAM on this board gets a 75MHz increase, giving us a final clock of 1175MHz.