SPECviewperf workstation graphics
Viewperf tests proficiency in workstation-class 3D graphics applications. It likes fast memory, and it stresses a system's AGP implementation quite a bit, which makes it a nice test for comparing chipsets.

In most of the tests, the 850 chipset can't be beat. However, the P4X266 isn't far behind anywhere along the way. As we're learning to expect, the 845 brings a substantial performance hit.

I should note, at this point, that in almost all of our 3D tests, the 845/PC133 system runs very close to the Pentium III 1.2GHz. That's important, because the 845 exists primarily to allow the Pentium 4 to step in and replace the Pentium III in Intel's high-volume markets like corporate desktop PCs. The P4/845/PC133 trio isn't a great workstation platform, but it's at least as good as a Pentium III at such tasks.