GeForce 810M vs GeForce GTX 850M

Intro

Compare those specs to the GeForce GTX 850M, which uses a 28 nm design. nVidia has clocked the core speed at 876 MHz. The DDR3 memory works at a frequency of 1000 MHz on this particular model. It features 640 SPUs as well as 40 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
GeForce GTX 850M		40 Watts
	Difference: 25 Watts (167%)

Memory Bandwidth

The GeForce GTX 850M should theoretically be quite a bit faster than the GeForce 810M overall. (explain)

GeForce GTX 850M		32000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 17600 (122%)

Texel Rate

The GeForce GTX 850M is much (approximately 493%) more effective at anisotropic filtering than the GeForce 810M. (explain)

GeForce GTX 850M		35040 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 29136 (493%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 850M is a better choice, and very much so. (explain)

GeForce GTX 850M		14016 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 11064 (375%)

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 maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's bus width by the speed of its memory. If the card has DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range 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 texture units by the core clock speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many 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.