Radeon RX 560 vs Radeon RX 580

Intro

Compare that to the Radeon RX 580, which has core speeds of 1257 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 TAUs and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon RX 580		185 Watts
	Difference: 105 Watts (131%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 580 should be 129% quicker than the Radeon RX 560 overall, due to its higher bandwidth. (explain)

Radeon RX 580		262144 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 147456 (129%)

Texel Rate

The Radeon RX 580 is quite a bit (approximately 141%) more effective at anisotropic filtering than the Radeon RX 560. (explain)

Radeon RX 580		181008 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 105808 (141%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 580 is a better choice, by far. (explain)

Radeon RX 580		40224 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 21424 (114%)

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 max amount of information (measured in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the 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 number of texture map elements (texels) that can be applied per second. This is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs 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 rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.