GeForce GTX 870M vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which features a core clock frequency of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 14 nm design. It is made up of 896 SPUs, 56 TAUs, 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

In theory, the Radeon RX 460 2GB should be a small bit faster 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 will be much (approximately 73%) faster with regards to AF 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

The GeForce GTX 870M should be quite a bit (more or less 29%) faster with regards to anti-aliasing than the Radeon RX 460 2GB, and also should be able to handle higher resolutions more effectively. (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: Memory bandwidth is the maximum amount of information (in units of megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.