Radeon HD 7970 vs Radeon RX 470

Intro

Compare all of that to the Radeon RX 470, which has a GPU core clock speed of 926 MHz, and 8192 MB of GDDR5 RAM set to run at 1650 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, 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 470		11756 points
Radeon HD 7970		8225 points
	Difference: 3531 (43%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon HD 7970		21 Mh/s
	Difference: 5 (24%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 7970		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

The Radeon HD 7970 should in theory be much faster than the Radeon RX 470 overall. (explain)

Radeon HD 7970		264000 MB/sec
Radeon RX 470		211200 MB/sec
	Difference: 52800 (25%)

Texel Rate

The Radeon RX 470 is a little bit (about 0%) more effective at AF than the Radeon HD 7970. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 7970		118400 Mtexels/sec
	Difference: 128 (0%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 470 is superior to the Radeon HD 7970, but not by far. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 7970		29600 Mpixels/sec
	Difference: 32 (0%)

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 (counted in MB per second) that can be transferred across the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 processed in one second. This is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.