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Radeon HD 6970 vs Radeon R9 380 2G

Intro

The Radeon HD 6970 has a clock frequency of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is comprised of 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Compare that to the Radeon R9 380 2G, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory runs at a speed of 1425 MHz on this model. It features 1792 SPUs as well as 112 TAUs and 32 ROPs.

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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 380 2G 8850 points
Radeon HD 6970 3470 points
Difference: 5380 (155%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 2G 190 Watts
Radeon HD 6970 250 Watts
Difference: 60 Watts (32%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380 2G should be 4% faster than the Radeon HD 6970 overall, due to its greater data rate. (explain)

Radeon R9 380 2G 182400 MB/sec
Radeon HD 6970 176000 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon R9 380 2G is a lot (approximately 29%) better at anisotropic filtering than the Radeon HD 6970. (explain)

Radeon R9 380 2G 108640 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 24160 (29%)

Pixel Rate

The Radeon R9 380 2G should be a little bit (more or less 10%) faster with regards to AA than the Radeon HD 6970, and also will be capable of handling higher screen resolutions better. (explain)

Radeon R9 380 2G 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 380 2G

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 380 2G
Manufacturer AMD AMD
Year December 2010 June 2015
Code Name Cayman XT Antigua PRO
Memory 2048 MB 2048 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 108640 Mtexels/sec
Pixel Rate 28160 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1536 1792
Texture Mapping Units 96 112
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 ×16
DirectX Version DirectX 11 DirectX 12.0
OpenGL Version OpenGL 4.1 OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Check prices at:

Radeon R9 380 2G

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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