GeForce 8800 GTS (G80) 640MB vs GeForce GTX 460 (OEM)

Intro

Compare those specs to the GeForce GTX 460 (OEM), which makes use of a 40 nm design. nVidia has set the core speed at 650 MHz. The GDDR5 memory runs at a speed of 850 MHz on this specific model. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 8800 GTS (G80) 640MB		143 Watts
GeForce GTX 460 (OEM)		150 Watts
	Difference: 7 Watts (5%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 460 (OEM) should theoretically be a lot superior to the GeForce 8800 GTS (G80) 640MB overall. (explain)

GeForce GTX 460 (OEM)		108800 MB/sec
GeForce 8800 GTS (G80) 640MB		63360 MB/sec
	Difference: 45440 (72%)

Texel Rate

The GeForce GTX 460 (OEM) will be quite a bit (approximately 48%) faster with regards to AF than the GeForce 8800 GTS (G80) 640MB. (explain)

GeForce GTX 460 (OEM)		36400 Mtexels/sec
GeForce 8800 GTS (G80) 640MB		24624 Mtexels/sec
	Difference: 11776 (48%)

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 GTS (G80) 640MB, and very much so. (explain)

GeForce GTX 460 (OEM)		20800 Mpixels/sec
GeForce 8800 GTS (G80) 640MB		10260 Mpixels/sec
	Difference: 10540 (103%)

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 information (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 number of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.