Radeon HD 7970 vs Radeon RX 570

Intro

Compare those specifications to the Radeon RX 570, which has GPU clock speed of 1168 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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

As far as performance goes, the Radeon HD 7970 should in theory be a little bit better than the Radeon RX 570 in general. (explain)

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

Texel Rate

The Radeon RX 570 should be much (approximately 26%) more effective 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 using high levels of AA is important to you, then the Radeon RX 570 is a better choice, by far. (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: Memory bandwidth is the largest amount of information (measured in MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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