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Radeon HD 6970 vs Radeon RX 470 4GB

Intro

The Radeon HD 6970 features a GPU core clock speed of 880 MHz, and the 2048 MB of GDDR5 memory runs at 1375 MHz through a 256-bit bus. It also features 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon RX 470 4GB, which comes with GPU core speed of 926 MHz, and 4096 MB of GDDR5 RAM running at 1650 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470 4GB 120 Watts
Radeon HD 6970 250 Watts
Difference: 130 Watts (108%)

Memory Bandwidth

Performance-wise, the Radeon RX 470 4GB should theoretically be a small bit better than the Radeon HD 6970 in general. (explain)

Radeon RX 470 4GB 211200 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 35200 (20%)

Texel Rate

The Radeon RX 470 4GB should be much (more or less 40%) better at AF than the Radeon HD 6970. (explain)

Radeon RX 470 4GB 118528 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 34048 (40%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 470 4GB is superior to the Radeon HD 6970, not by a very large margin though. (explain)

Radeon RX 470 4GB 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

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Radeon HD 6970

Amazon.com

Check prices at:

Radeon RX 470 4GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 6970 Radeon RX 470 4GB
Manufacturer AMD AMD
Year December 2010 August 2016
Code Name Cayman XT Polaris 10
Memory 2048 MB 4096 MB
Core Speed 880 MHz 926 MHz
Memory Speed 5500 MHz 6600 MHz
Power (Max TDP) 250 watts 120 watts
Bandwidth 176000 MB/sec 211200 MB/sec
Texel Rate 84480 Mtexels/sec 118528 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 29632 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 96 128
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 14 nm
Transistors 2640 million 5700 million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Bandwidth is the largest amount of information (measured in MB per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster 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 number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, 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 that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated 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 drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Check prices at:

Radeon RX 470 4GB

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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