GeForce GTX 870M vs Radeon RX 460 2GB

Intro

Compare all that to the Radeon RX 460 2GB, which comes with core speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460 2GB		75 Watts
GeForce GTX 870M		110 Watts
	Difference: 35 Watts (47%)

Memory Bandwidth

Performance-wise, the Radeon RX 460 2GB should theoretically be a small bit better than the GeForce GTX 870M in general. (explain)

Radeon RX 460 2GB		112000 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 16000 (17%)

Texel Rate

The GeForce GTX 870M should be quite a bit (more or less 73%) faster with regards to texture filtering than the Radeon RX 460 2GB. (explain)

GeForce GTX 870M		105392 Mtexels/sec
Radeon RX 460 2GB		61040 Mtexels/sec
	Difference: 44352 (73%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 870M is a better choice, by far. (explain)

GeForce GTX 870M		22584 Mpixels/sec
Radeon RX 460 2GB		17440 Mpixels/sec
	Difference: 5144 (29%)

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 largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 most pixels the video card can possibly record 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 speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.