Towards the bottom of this range comes ATi's Radeon X1650XT, which we've already seen in premium overclocked form courtesy the HIS X1650XT IceQ Turbo Dual DL-DVI 256MB. The X1650XT is hardly a low-end specification, though. With 24 pixel units, 8 vertex units, and a reference 575MHz core, the GPU has serious 3D rendering grunt. In fact, the X1650XT only has 8 less pixel shader units than the Radeon X1950 PRO. But it is also restricted by a 128-bit memory path, so although it is equipped with 1350MHz GDDR3 memory, the X1650XT has significantly less bandwidth than its bigger brother.



Link: Hexus