GeForce 810M vs Geforce GTX 780

Intro

Compare all of that to the Geforce GTX 780, which makes use of a 28 nm design. nVidia has clocked the core frequency at 863 MHz. The GDDR5 memory works at a speed of 1502 MHz on this model. It features 2304 SPUs along with 192 Texture Address Units and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Geforce GTX 780		250 Watts
	Difference: 235 Watts (1567%)

Memory Bandwidth

In theory, the Geforce GTX 780 will be 1903% faster than the GeForce 810M in general, because of its higher data rate. (explain)

Geforce GTX 780		288384 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 273984 (1903%)

Texel Rate

The Geforce GTX 780 is quite a bit (approximately 2707%) faster with regards to AF than the GeForce 810M. (explain)

Geforce GTX 780		165696 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 159792 (2707%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 780 is superior to the GeForce 810M, and very much so. (explain)

Geforce GTX 780		41424 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 38472 (1303%)

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 (measured in megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the bus width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video 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 its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.