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Radeon HD 6970 vs Radeon R9 380X

Intro

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

Compare that to the Radeon R9 380X, which features core clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 TAUs and 32 Rasterization Operator Units.

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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 R9 380X 9519 points
Radeon HD 6970 3470 points
Difference: 6049 (174%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X 190 Watts
Radeon HD 6970 250 Watts
Difference: 60 Watts (32%)

Memory Bandwidth

The Radeon R9 380X, in theory, should perform just a bit faster than the Radeon HD 6970 overall. (explain)

Radeon R9 380X 182400 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon R9 380X should be quite a bit (approximately 47%) faster with regards to AF than the Radeon HD 6970. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 39680 (47%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon R9 380X is a better choice, but it probably won't make a huge difference. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon HD 6970 28160 Mpixels/sec
Difference: 2880 (10%)

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 R9 380X

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 R9 380X
Manufacturer AMD AMD
Year December 2010 November 2015
Code Name Cayman XT Tonga XT
Memory 2048 MB 4096 MB
Core Speed 880 MHz 970 MHz
Memory Speed 5500 MHz 5700 MHz
Power (Max TDP) 250 watts 190 watts
Bandwidth 176000 MB/sec 182400 MB/sec
Texel Rate 84480 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 31040 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 28 nm
Transistors 2640 million 5000 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 (counted in MB per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total texture units of the card 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 processed in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 max fill rate.

Display Prices

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Radeon HD 6970

Amazon.com

Check prices at:

Radeon R9 380X

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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