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The GeForce 3 & Multitexturing - How Does it Perform?
(Click here to view the original thread with full colors/images)
Posted by: TotalRecall
nV News has a small article up on the new Geforce 3 engine, which enables the processing up to four texture layers in a single pass, whereas the older GeForce 2 pipeline only had the benefit of processing four two-layered textures in a single pass. Because of this, the GeForce 3 has the ability to "skip" a texture pass, increasing the overall speed of the chipset. Here's a snip:
An interesting technical aside: when I first changed something I was doing with five single or dual texture passes on a GF to something that only took two quad texture passes on a GF3, I got a surprisingly modest speedup. It turned out that the texture filtering and bandwidth was the dominant factor, not the frame buffer traffic that was saved with more texture units. When I turned off anisotropic filtering and used compressed textures, the GF3 version became twice as fast.
Get their full article here.
<font size="1">Source: AnandTech</font>
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