GeForce 8800 GTS (G92) vs GeForce GTX 860M

Intro

Compare all that to the GeForce GTX 860M, which has clock speeds of 797 MHz on the GPU, and 1000 MHz on the 4096 MB of GDDR5 RAM. It features 1152 SPUs as well as 96 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 860M		45 Watts
GeForce 8800 GTS (G92)		135 Watts
	Difference: 90 Watts (200%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 860M should be 3% quicker than the GeForce 8800 GTS (G92) in general, because of its higher bandwidth. (explain)

GeForce GTX 860M		64000 MB/sec
GeForce 8800 GTS (G92)		62080 MB/sec
	Difference: 1920 (3%)

Texel Rate

The GeForce GTX 860M should be a lot (more or less 84%) better at AF than the GeForce 8800 GTS (G92). (explain)

GeForce GTX 860M		76512 Mtexels/sec
GeForce 8800 GTS (G92)		41600 Mtexels/sec
	Difference: 34912 (84%)

Pixel Rate

The GeForce GTX 860M should be much (more or less 23%) better at FSAA than the GeForce 8800 GTS (G92), and also capable of handling higher resolutions more effectively. (explain)

GeForce GTX 860M		12752 Mpixels/sec
GeForce 8800 GTS (G92)		10400 Mpixels/sec
	Difference: 2352 (23%)

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 data (in units of MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better 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 are processed per second. This figure is calculated by multiplying the total amount of texture units of the card 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 maximum amount of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.