GeForce 810M vs GeForce 940M

Intro

Compare those specifications to the GeForce 940M, which has a clock frequency of 1072 MHz and a DDR3 memory frequency of 1000 MHz. It also features a 64-bit memory bus, and makes use of a 28 nm design. It features 384 SPUs, 24 Texture Address Units, and 8 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce 940M should in theory be a small bit faster than the GeForce 810M in general. (explain)

GeForce 940M		16000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 1600 (11%)

Texel Rate

The GeForce 940M is a lot (approximately 336%) more effective at anisotropic filtering than the GeForce 810M. (explain)

GeForce 940M		25728 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 19824 (336%)

Pixel Rate

The GeForce 940M should be quite a bit (approximately 191%) faster with regards to full screen anti-aliasing than the GeForce 810M, and capable of handling higher resolutions without slowing down too much. (explain)

GeForce 940M		8576 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 5624 (191%)

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 data (in units of megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory speed. If it uses DDR RAM, 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number 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 graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.