GeForce 8800 Ultra vs GeForce GTX 460

Intro

Compare those specifications to the GeForce GTX 460, which has core speeds of 675 MHz on the GPU, and 900 MHz on the 768 MB of GDDR5 memory. It features 336 SPUs along with 56 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

Theoretically speaking, the GeForce 8800 Ultra will be 20% faster than the GeForce GTX 460 in general, because of its greater bandwidth. (explain)

GeForce 8800 Ultra		103680 MB/sec
GeForce GTX 460		86400 MB/sec
	Difference: 17280 (20%)

Texel Rate

The GeForce 8800 Ultra is a small bit (about 4%) better at anisotropic filtering than the GeForce GTX 460. (explain)

GeForce 8800 Ultra		39168 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 1368 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 460 is the winner, but not by far. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce 8800 Ultra		14688 Mpixels/sec
	Difference: 1512 (10%)

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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.