GeForce 810M vs Radeon R9 M290X

Intro

Compare those specifications to the Radeon R9 M290X, which comes with a GPU core clock speed of 850 MHz, and 4096 MB of GDDR5 memory set to run at 1200 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 810M		15 Watts
Radeon R9 M290X		100 Watts
	Difference: 85 Watts (567%)

Memory Bandwidth

As far as performance goes, the Radeon R9 M290X should in theory be much better than the GeForce 810M in general. (explain)

Radeon R9 M290X		153600 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 139200 (967%)

Texel Rate

The Radeon R9 M290X is a lot (about 1052%) better at anisotropic filtering than the GeForce 810M. (explain)

Radeon R9 M290X		68000 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 62096 (1052%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M290X is the winner, and very much so. (explain)

Radeon R9 M290X		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 information (counted in MB per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 texture map elements (texels) that are processed per 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 higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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 of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.