Pixel-pushing power
Peak theoretical fill rates and memory bandwidth don't always define real-world performance, but they're a good place to start.

The Chrome S27 has a huge advantage across the board, boasting significantly higher clock speeds, higher peak fill rates, and more memory bandwidth than the competition. The GeForce 7300 GS and Radeon X1300 Pro are more competitive with each other, at least in terms of their multitextured fill rate. However, the GeForce 7300 GS has additional memory bandwidth available when it's using main system RAM via TurboCache. That extra bandwidth isn't reflected in the table above.

Of course, theoretical peaks only mean so much. 3DMark06's synthetic fill rate tests give us an idea whether the cards can hit those peaks in near-ideal conditions.

The results aren't terribly shocking. As one might expect, the S27's clock speed advantage allows it to rip through 3DMark06's synthetic fill rate tests. The S3 is ahead by a comfortable margin in both the single and multitexturing tests, followed by the Radeon X1300 Pro. Notice that the GeForce 7300 GS gains ground on the X1300 Pro as we move from single to multitexturing—and that the GeForce 6100 is way behind in both tests.

3DMark06 also contains a number of synthetic pixel and vertex shader tests that we can use to quantify the relative shader power of each card.

Despite having the lowest clock speeds of the lot, the GeForce 7300 GS edges out the Radeon X1300 Pro in the pixel shader test, with the Chrome S27 trailing well behind. The GeForce doesn't fare so well in the vertex shader tests, however. The 7300 GS is relegated to third place behind the X1300 Pro and the Chrome S27.

Again, the GeForce 6100 is well off the pace in all of 3DMark06's synthetic shader tests. That doesn't bode well.