GeForce 8800 Ultra vs GeForce GTX 460 (OEM)

Intro

Compare those specifications to the GeForce GTX 460 (OEM), which features a clock speed of 650 MHz and a GDDR5 memory speed of 850 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 460 (OEM)		150 Watts
GeForce 8800 Ultra		171 Watts
	Difference: 21 Watts (14%)

Memory Bandwidth

In theory, the GeForce GTX 460 (OEM) should be 5% quicker than the GeForce 8800 Ultra in general, due to its greater data rate. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce 8800 Ultra		103680 MB/sec
	Difference: 5120 (5%)

Texel Rate

The GeForce 8800 Ultra should be a little bit (approximately 8%) better at texture filtering than the GeForce GTX 460 (OEM). (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GTX 460 (OEM)		36400 Mtexels/sec
	Difference: 2768 (8%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce GTX 460 (OEM) is superior to the GeForce 8800 Ultra, by a large margin. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 6112 (42%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of information (measured in megabytes per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.