GeForce 8800 GTX vs GeForce GTX 970M

Intro

Compare those specifications to the GeForce GTX 970M, which features clock speeds of 924 MHz on the GPU, and 1000 MHz on the 3072 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce 8800 GTX		155 Watts
	Difference: 80 Watts (107%)

Memory Bandwidth

Theoretically, the GeForce GTX 970M should perform a bit faster than the GeForce 8800 GTX overall. (explain)

GeForce GTX 970M		96000 MB/sec
GeForce 8800 GTX		86400 MB/sec
	Difference: 9600 (11%)

Texel Rate

The GeForce GTX 970M should be much (more or less 101%) faster with regards to texture filtering than the GeForce 8800 GTX. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce 8800 GTX		36800 Mtexels/sec
	Difference: 37120 (101%)

Pixel Rate

The GeForce GTX 970M will be a lot (more or less 221%) faster with regards to FSAA than the GeForce 8800 GTX, and also able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce 8800 GTX		13800 Mpixels/sec
	Difference: 30552 (221%)

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 max amount of information (measured in megabytes per second) that can be moved over the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends 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 maximum fill rate.