Radeon HD 7970 vs Radeon RX 5600

Intro

Compare those specs to the Radeon RX 5600, which comes with GPU core speed of 1375 MHz, and 6144 MB of GDDR6 RAM set to run at 1500 MHz through a 192-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5600		150 Watts
Radeon HD 7970		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

As far as performance goes, the Radeon RX 5600 should theoretically be a bit superior to the Radeon HD 7970 in general. (explain)

Radeon RX 5600		294912 MB/sec
Radeon HD 7970		264000 MB/sec
	Difference: 30912 (12%)

Texel Rate

The Radeon RX 5600 is much (more or less 49%) better at anisotropic filtering than the Radeon HD 7970. (explain)

Radeon RX 5600		176000 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 57600 (49%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 5600 is a better choice, by a large margin. (explain)

Radeon RX 5600		88000 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 58400 (197%)

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 (in units of MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). 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 reach the maximum fill rate.