Radeon HD 7970 vs Radeon RX 560

Intro

Compare those specs to the Radeon RX 560, which features 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 7970		250 Watts
	Difference: 170 Watts (213%)

Memory Bandwidth

Performance-wise, the Radeon HD 7970 should theoretically be much better than the Radeon RX 560 in general. (explain)

Radeon HD 7970		264000 MB/sec
Radeon RX 560		114688 MB/sec
	Difference: 149312 (130%)

Texel Rate

The Radeon HD 7970 should be quite a bit (more or less 57%) better at anisotropic filtering than the Radeon RX 560. (explain)

Radeon HD 7970		118400 Mtexels/sec
Radeon RX 560		75200 Mtexels/sec
	Difference: 43200 (57%)

Pixel Rate

The Radeon HD 7970 is much (approximately 57%) faster with regards to full screen anti-aliasing than the Radeon RX 560, and should be able to handle higher resolutions better. (explain)

Radeon HD 7970		29600 Mpixels/sec
Radeon RX 560		18800 Mpixels/sec
	Difference: 10800 (57%)

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 (in units of megabytes per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core speed of the chip. The better this number, the better the graphics 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 maximum amount of pixels that the graphics chip can possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.