GeForce 810M vs GeForce GTX 980

Intro

Compare those specifications to the GeForce GTX 980, which comes with GPU clock speed of 1126 MHz, and 4096 MB of GDDR5 RAM running at 1750 MHz through a 256-bit bus. It also features 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GTX 980		165 Watts
	Difference: 150 Watts (1000%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 980 will be 1456% quicker than the GeForce 810M in general, because of its greater bandwidth. (explain)

GeForce GTX 980		224000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 209600 (1456%)

Texel Rate

The GeForce GTX 980 is quite a bit (about 2341%) better at anisotropic filtering than the GeForce 810M. (explain)

GeForce GTX 980		144128 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 138224 (2341%)

Pixel Rate

The GeForce GTX 980 should be a lot (about 2341%) faster with regards to AA than the GeForce 810M, and also able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 980		72064 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 69112 (2341%)

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 largest amount of data (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. 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 texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, 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 most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.