GeForce GTX 870M vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which uses a 14 nm design. AMD has clocked the core frequency at 1175 MHz. The GDDR5 memory works at a frequency of 1750 MHz on this card. It features 1024 SPUs as well as 64 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce GTX 870M		110 Watts
	Difference: 30 Watts (38%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 560 should perform a little bit faster than the GeForce GTX 870M overall. (explain)

Radeon RX 560		114688 MB/sec
GeForce GTX 870M		96000 MB/sec
	Difference: 18688 (19%)

Texel Rate

The GeForce GTX 870M will be a lot (approximately 40%) better at AF than the Radeon RX 560. (explain)

GeForce GTX 870M		105392 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 30192 (40%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 870M is the winner, though only just barely. (explain)

GeForce GTX 870M		22584 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 3784 (20%)

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 information (counted in MB per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. If the card has DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.