GeForce 810M vs GeForce GTX 660

Intro

Compare all that to the GeForce GTX 660, which comes with core speeds of 980 MHz on the GPU, and 1502 MHz on the 2048 MB of GDDR5 memory. It features 960 SPUs as well as 80 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GTX 660		140 Watts
	Difference: 125 Watts (833%)

Memory Bandwidth

Performance-wise, the GeForce GTX 660 should in theory be quite a bit superior to the GeForce 810M overall. (explain)

GeForce GTX 660		144192 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 129792 (901%)

Texel Rate

The GeForce GTX 660 should be much (approximately 1228%) better at anisotropic filtering than the GeForce 810M. (explain)

GeForce GTX 660		78400 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 72496 (1228%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 660 is superior to the GeForce 810M, by a large margin. (explain)

GeForce GTX 660		23520 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 20568 (697%)

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 maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.