Radeon HD 6970 vs Radeon RX 470

Intro

Compare those specifications to the Radeon RX 470, which makes use of a 14 nm design. AMD has set the core speed at 926 MHz. The GDDR5 memory runs at a speed of 1650 MHz on this particular model. It features 2048 SPUs as well as 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 6970		3470 points
	Difference: 8286 (239%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon HD 6970		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

The Radeon RX 470, in theory, should be a small bit faster than the Radeon HD 6970 in general. (explain)

Radeon RX 470		211200 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 will be a lot (about 40%) more effective at anisotropic filtering than the Radeon HD 6970. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 34048 (40%)

Pixel Rate

The Radeon RX 470 will be a little bit (approximately 5%) better at full screen anti-aliasing than the Radeon HD 6970, and also will be capable of handling higher screen resolutions more effectively. (explain)

Radeon RX 470		29632 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 1472 (5%)

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 (measured in MB per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.