Radeon HD 5970 vs Radeon RX 560

Intro

Compare those specifications to the Radeon RX 560, which comes with core speeds of 1175 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 1024 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 560		80 Watts
Radeon HD 5970		294 Watts
	Difference: 214 Watts (268%)

Memory Bandwidth

Theoretically, the Radeon HD 5970 should be much faster than the Radeon RX 560 overall. (explain)

Radeon HD 5970		256000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 141312 (123%)

Texel Rate

The Radeon HD 5970 is much (approximately 209%) better at texture filtering than the Radeon RX 560. (explain)

Radeon HD 5970		232000 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 156800 (209%)

Pixel Rate

If using a high resolution is important to you, then the Radeon HD 5970 is a better choice, and very much so. (explain)

Radeon HD 5970		92800 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 74000 (394%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, the result should 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 AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the the card's clock speed. 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 fill rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.