No, the render_bench results for the NVIDIA 169.04 Beta driver are not missing. There is a phenomenal performance boost in the 169.04 Beta driver for the X Rendering Extension. Tests that previously took over a minute (or several minutes) to complete are now being hardware-accelerated properly and each took less than a second to complete. While the GeForce 8 OpenGL performance was also improved with this driver, the XRender performance is a night and day difference. If NVIDIA continues with their normal release cycle, there should be another Linux driver release before year's end that will hopefully be a stable version of the 169.04 Beta driver.