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Radeon HD 6970 vs Radeon R9 380 4G

Intro

The Radeon HD 6970 has a core clock frequency of 880 MHz and a GDDR5 memory frequency of 1375 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 380 4G, which features GPU core speed of 970 MHz, and 4096 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also features 1792 Stream Processors, 112 Texture Address Units, 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 4G 8837 points
Radeon HD 6970 3470 points
Difference: 5367 (155%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380 4G 190 Watts
Radeon HD 6970 250 Watts
Difference: 60 Watts (32%)

Memory Bandwidth

In theory, the Radeon R9 380 4G is 4% faster than the Radeon HD 6970 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon R9 380 4G should be much (approximately 29%) more effective at anisotropic filtering than the Radeon HD 6970. (explain)

Radeon R9 380 4G 108640 Mtexels/sec
Radeon HD 6970 84480 Mtexels/sec
Difference: 24160 (29%)

Pixel Rate

The Radeon R9 380 4G is a small bit (more or less 10%) more effective at AA than the Radeon HD 6970, and also able to handle higher resolutions better. (explain)

Radeon R9 380 4G 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 4G

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 4G
Manufacturer AMD AMD
Year December 2010 June 2015
Code Name Cayman XT Antigua PRO
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 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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 6970

Amazon.com

Check prices at:

Radeon R9 380 4G

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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