Utjecaj količine shaderskih jedinica na NV 8x00 grafe

[SRV]

* Rendering speed of modern games in easy modes is often limited by a CPU. In this case there will be no performance gain from increasing the number of shader units and texture units. So a reduced number of unified processors in Mid- and Low-End cards, which are used in similar conditions (a relatively low resolution, medium quality settings, no anti-aliasing and anisotropic filtering), is quite justified.
* What concerns heavy modes in high resolutions with maximum settings, performance is often limited by the number and speed of shader units and texture units. We can see a performance difference between configurations with 32 and 64, 64 and 96 active units almost in all games. But the difference between 96 and 128 is much smaller. Here is the main conclusion - the number of shader and texture units is very important for modern games in heavy modes.
* There is a noticeable correlation with release dates - newer games have higher requirements to the power and number of execution units, for example Call of Juarez and Company of Heroes. These games show that the importance of powerful computing units in GPUs will only grow in future. Especially if we speak of future games, which will use geometry shaders along with actively using vertex and pixel shaders. S.T.A.L.K.E.R. is an exception. Its performance in the heavy mode is so limited by a CPU that there is almost no difference between the configurations with 64 and 128 stream processors. However, most games do not behave this way. They are rarely limited by a CPU in the heavy mode.

http://www.digit-life.com/articles2/...g80_units.html