GeForce 810M vs Radeon R9 280X

Intro

Compare that to the Radeon R9 280X, which features GPU core speed of 850 MHz, and 3072 MB of GDDR5 memory set to run at 1500 MHz through a 384-bit bus. It also is made up of 2048 Stream Processors, 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 R9 280X		250 Watts
	Difference: 235 Watts (1567%)

Memory Bandwidth

Theoretically, the Radeon R9 280X should perform a lot faster than the GeForce 810M overall. (explain)

Radeon R9 280X		288000 MB/sec
GeForce 810M		14400 MB/sec
	Difference: 273600 (1900%)

Texel Rate

The Radeon R9 280X should be quite a bit (about 1743%) faster with regards to AF than the GeForce 810M. (explain)

Radeon R9 280X		108800 Mtexels/sec
GeForce 810M		5904 Mtexels/sec
	Difference: 102896 (1743%)

Pixel Rate

The Radeon R9 280X should be a lot (approximately 821%) more effective at AA than the GeForce 810M, and able to handle higher resolutions more effectively. (explain)

Radeon R9 280X		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 max amount of information (counted in megabytes per second) that can be transported over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.