Elite Bastards takes a look at the XFX GeForce 9800 GX2 1GB and Quad SLI

Each of these G92 cores has its full complement of 128 Stream Processors available to it, giving the GeForce 9800 GX2 as a whole a total of 256 Stream Processors. These shader units are clocked at 1.5GHz in their own clock domain, while the core clock itself (affecting dispatch and texturing units together with the ROPs on-board) is set to 600MHz. Each core also has a full complement of ROPs, meaning sixteen on each core (giving thirty-two in total) and sixty-four each of texture filtering and addressing units (for 128 of each in total on the board). This choice of specification means that although each core on the GeForce 9800 GX2 matches those on a GeForce 8800 GTS 512MB in terms of shader, texturing and ROPs units, it finds itself with lower clock speeds than the 650MHz and 1.625GHz core and shader clocks on the latter.

XFX GeForce 9800 GX2 1GB and Quad SLI Review