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S3 Diamond Viper II Review
Краткое содержание статьи: Our second look at the Viper II as we review the newly released hardware by S3. We put the Viper II through our standard benchmark suite to see how the S2000 chipset measures up to the competition.

S3 Diamond Viper II Review


Редакция THG,  24 декабря 1999
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3D Mark 2000 High Polygon Count

3D Mark 2000 High Polygon Count (4 lights) - 1024x768x16 DirectX

The results in this test are showing me something that I hoped wouldn't happen. The video cards without T&L must rely on the speed of the CPU (which uses KNI in DirectX 7) to calculate all the T&L information. The CPU should do well but match the performance of the GeForce GPU that has built in T&L. As you can see from the results, the boards without T&L come very close to the GeForce cards. I will be investigating this further but from what I've found out so far, the 3DMark benchmark doesn't use DirectX 7 only but has a mix of custom code involved. This also makes us realize that it's very possible that game developers may do something similar to support a wide array of cards which would hurt the performance of the GeForce cards.

3D Mark 2000 High Polygon Count (4 lights) - 1024x768x32 DirectX

Here we have more data to support what I mentioned above. Notice that only the GeForce cards took a penalty when switching to 32-bit color mode. The video cards relying on the CPU for T&L can split the workload between the graphics card and CPU (so you'll see little to no performance drop) while the GeForce cards take a slight hit in performance because they're having to deal with the 32-bit color stealing a heavy amount of bandwidth.

Overall my feelings about the actual Viper II performance are mixed. I think the Viper has showed us great performance potential in multi-texturing situations. The drivers are going to play a huge part in this as well. We can see that the drivers were tuned very well for Quake 3 but the poor performance in OpenGL Descent 3 has proven to us that this OpenGL ICD driver still needs some tuning. You can also see that without the comfort of multi-texturing being used, the Viper II has a difficult time keeping up with the more flexible GeForce cards.
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Обсуждение в Клубе Экспертов THG Обсуждение в Клубе Экспертов THG


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