GeForce GTX 880M vs Radeon RX 560

Intro

Compare that to the Radeon RX 560, which features a clock speed of 1175 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 128-bit memory bus, and uses a 14 nm design. It is comprised of 1024 SPUs, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce GTX 880M		130 Watts
	Difference: 50 Watts (63%)

Memory Bandwidth

In theory, the GeForce GTX 880M should be a small bit faster than the Radeon RX 560 overall. (explain)

GeForce GTX 880M		128000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 13312 (12%)

Texel Rate

The GeForce GTX 880M will be a lot (more or less 62%) better at AF than the Radeon RX 560. (explain)

GeForce GTX 880M		122112 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 46912 (62%)

Pixel Rate

The GeForce GTX 880M should be much (approximately 62%) faster with regards to FSAA than the Radeon RX 560, and should be able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 880M		30528 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 11728 (62%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in one 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.