GeForce 8800 GTS (G92) vs GeForce GTX 460

Intro

Compare that to the GeForce GTX 460, which comes with a core clock speed of 675 MHz and a GDDR5 memory speed of 900 MHz. It also features a 192-bit bus, and uses a 40 nm design. It features 336 SPUs, 56 Texture Address Units, and 24 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G92)		135 Watts
GeForce GTX 460		150 Watts
	Difference: 15 Watts (11%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 460 should be 39% faster than the GeForce 8800 GTS (G92) overall, due to its greater data rate. (explain)

GeForce GTX 460		86400 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 24320 (39%)

Texel Rate

The GeForce 8800 GTS (G92) should be a little bit (about 10%) better at AF than the GeForce GTX 460. (explain)

GeForce 8800 GTS (G92)		41600 Mtexels/sec
GeForce GTX 460		37800 Mtexels/sec
	Difference: 3800 (10%)

Pixel Rate

The GeForce GTX 460 should be quite a bit (approximately 56%) more effective at FSAA than the GeForce 8800 GTS (G92), and will be able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 460		16200 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 5800 (56%)

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: Memory bandwidth is the largest amount of data (measured in megabytes per second) that can be transported across the external memory interface within a second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.