GeForce GTX 980 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which has GPU clock speed of 1175 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 128-bit bus. It also features 1024 Stream Processors, 64 Texture Address Units, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
GeForce GTX 980		165 Watts
	Difference: 85 Watts (106%)

Memory Bandwidth

The GeForce GTX 980 should in theory be much faster than the Radeon RX 560 in general. (explain)

GeForce GTX 980		224000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 109312 (95%)

Texel Rate

The GeForce GTX 980 is a lot (approximately 92%) more effective at texture filtering than the Radeon RX 560. (explain)

GeForce GTX 980		144128 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 68928 (92%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 980 is superior to the Radeon RX 560, by a large margin. (explain)

GeForce GTX 980		72064 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 53264 (283%)

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 largest amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. It is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.