GeForce 810M vs Radeon HD 7970

Intro

Compare those specs to the Radeon HD 7970, which has GPU clock speed of 925 MHz, and 3072 MB of GDDR5 RAM set to run at 1375 MHz through a 384-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Radeon HD 7970		250 Watts
	Difference: 235 Watts (1567%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 7970 will be 1733% faster than the GeForce 810M overall, due to its greater bandwidth. (explain)

Radeon HD 7970		264000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 249600 (1733%)

Texel Rate

The Radeon HD 7970 is a lot (about 1905%) better at anisotropic filtering than the GeForce 810M. (explain)

Radeon HD 7970		118400 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 112496 (1905%)

Pixel Rate

The Radeon HD 7970 should be much (more or less 903%) faster with regards to anti-aliasing than the GeForce 810M, and capable of handling higher screen resolutions better. (explain)

Radeon HD 7970		29600 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 26648 (903%)

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 data (measured in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied 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 handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.