GeForce 810M vs Radeon HD 5870

Intro

Compare all of that to the Radeon HD 5870, which has a clock speed of 850 MHz and a GDDR5 memory speed of 1200 MHz. It also makes use of a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 1600(320x5) SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Radeon HD 5870		188 Watts
	Difference: 173 Watts (1153%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5870 should perform quite a bit faster than the GeForce 810M in general. (explain)

Radeon HD 5870		153600 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 139200 (967%)

Texel Rate

The Radeon HD 5870 should be much (more or less 1052%) faster with regards to texture filtering than the GeForce 810M. (explain)

Radeon HD 5870		68000 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 62096 (1052%)

Pixel Rate

The Radeon HD 5870 should be a lot (more or less 821%) more effective at AA than the GeForce 810M, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 5870		27200 Mpixels/sec
GeForce 810M		2952 Mpixels/sec
	Difference: 24248 (821%)

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 largest amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount 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 output rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.