GeForce 810M vs GeForce GTX 580

Intro

Compare those specifications to the GeForce GTX 580, which features core clock speeds of 772 MHz on the GPU, and 1002 MHz on the 1536 MB of GDDR5 memory. It features 512 SPUs along with 64 Texture Address Units and 48 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GTX 580		244 Watts
	Difference: 229 Watts (1527%)

Memory Bandwidth

The GeForce GTX 580, in theory, should be quite a bit faster than the GeForce 810M overall. (explain)

GeForce GTX 580		192384 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 177984 (1236%)

Texel Rate

The GeForce GTX 580 will be a lot (more or less 737%) better at AF than the GeForce 810M. (explain)

GeForce GTX 580		49408 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 43504 (737%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 580 is a better choice, by far. (explain)

GeForce GTX 580		37056 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 34104 (1155%)

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 (in units of megabytes per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. 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 also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.