Radeon HD 7970 vs Radeon RX 570

Intro

Compare those specifications to the Radeon RX 570, which comes with core clock speeds of 1168 MHz on the GPU, and 1750 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 ROPs.

Display Graphs

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 570		12108 points
Radeon HD 7970		8225 points
	Difference: 3883 (47%)

Ethereum Mining Hash Rate

Radeon RX 570		26 Mh/s
Radeon HD 7970		21 Mh/s
	Difference: 5 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 570		150 Watts
Radeon HD 7970		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon HD 7970 should theoretically be a little bit faster than the Radeon RX 570 overall. (explain)

Radeon HD 7970		264000 MB/sec
Radeon RX 570		229376 MB/sec
	Difference: 34624 (15%)

Texel Rate

The Radeon RX 570 is much (more or less 26%) better at texture filtering than the Radeon HD 7970. (explain)

Radeon RX 570		149504 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 31104 (26%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon RX 570 is a better choice, and very much so. (explain)

Radeon RX 570		37376 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 7776 (26%)

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: Bandwidth is the max amount of data (measured in MB per second) that can be transferred over the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory speed. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied 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 a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.