GeForce 8800 GTS (G80) 320MB vs GeForce GTX 460 1GB

Intro

Compare those specs to the GeForce GTX 460 1GB, which makes use of a 40 nm design. nVidia has set the core frequency at 675 MHz. The GDDR5 RAM runs at a frequency of 900 MHz on this particular card. It features 336 SPUs along with 56 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 320MB		143 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 17 Watts (12%)

Memory Bandwidth

Performance-wise, the GeForce GTX 460 1GB should theoretically be quite a bit better than the GeForce 8800 GTS (G80) 320MB in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce 8800 GTS (G80) 320MB		63360 MB/sec
	Difference: 51840 (82%)

Texel Rate

The GeForce GTX 460 1GB should be quite a bit (approximately 54%) better at texture filtering than the GeForce 8800 GTS (G80) 320MB. (explain)

GeForce GTX 460 1GB		37800 Mtexels/sec
GeForce 8800 GTS (G80) 320MB		24624 Mtexels/sec
	Difference: 13176 (54%)

Pixel Rate

The GeForce GTX 460 1GB should be quite a bit (about 111%) more effective at FSAA than the GeForce 8800 GTS (G80) 320MB, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce 8800 GTS (G80) 320MB		10260 Mpixels/sec
	Difference: 11340 (111%)

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 max amount of information (measured in megabytes per second) that can be moved across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 amount of texture map elements (texels) that are applied in one second. This is calculated by multiplying the total texture units by the core clock 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 a second.

Pixel Rate: Pixel rate is the maximum number of pixels that 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 amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.