NVIDIA GeForce 6600GT and 6600 (NV43): Part 1

Code Creatures

GeForce 6600GT vs. OTHER CARDS	GeForce 6600GT vs. GeForce 6800/6800GT	GeForce 6600

The easiest modes without AA and anisotropy: it's a shader test, though DX81, it heavily loads the core. As a result, we get almost parity with the "emulators". Another proof that 6600GT is a half of 6800Ultra with the frequency increased to 500 MHz (there are over two textures, and it's enough time to write 8 pixels during the caching process). What concerns the other battles, 6600GT is doing excellent! Both X600XT and PCX5900 are defeated! But 6600 was defeated by PCX5900, though it outscored X600XT.

With enabled AA: The bus and the lower memory bandwidth again did a disservice to 6600GT, that's why R9800PRO/6800LE rose to the occasion. Though X600XT and PCX5900 were defeated! 6600 outscored X600XT with equal memory bandwidth and was defeated by PCX5900 with its 256-bit bus.

With enabled anisotropy: Everything is fine with 6600GT/6600! There is no need in comments. But why did the competition with the "emulators" concede to 6600GT? This is not logical. Drivers? - Maybe. And maybe again insignificant differences in pipeline caching.

The final heaviest mode with AA and anisotropy: The cards fell down before 256-bit video cards, except for PCX5900, and outscored X600XT and PCX5900. 6600 outscores X600XT and is on the level with PCX5900.

Thus, on the whole:

GeForce 6600GT versus RADEON 9800 PRO (ATHLON64 3400+) – minor defeat
GeForce 6600GT versus GeForce PCX5900 – victory!
GeForce 6600GT versus RADEON X600XT – victory!
GeForce 6600GT versus GeForce 6800LE (ATHLON64 3400+) – fiasco...
GeForce 6600GT 325/700 MHz versus GeForce 6800 (8/3) 325/350 MHz (ATHLON64 3400+) – defeat (again AA!)
GeForce 6600GT 350/1000 MHz versus GeForce 6800GT PCX (8/3) 350/500 MHz – the same picture
GeForce 6600 300/600 MHz versus GeForce PCX5900 – victory
GeForce 6600 300/600 MHz versus GeForce PCX5750 – the competitor is obviously defeated
GeForce 6600 300/600 MHz versus RADEON X600XT – victory

If not take into account unpredictable results demonstrated by the card at 1600x1200 with AA+AF, you can see that the performance gain from overclocking is slightly less than the frequency increase percentage (18%).

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Andrey Vorobiev (anvakams@ixbt.com)
Alexander Medvedev (unclesam@ixbt.com)

07 September, 2004

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