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Radeon HD 6950 2GB vs Radeon R9 380X

Intro

The Radeon HD 6950 2GB features a core clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit bus, and makes use of a 40 nm design. It features 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Compare those specifications to the Radeon R9 380X, which uses a 28 nm design. AMD has clocked the core frequency at 970 MHz. The GDDR5 memory works at a speed of 1425 MHz on this particular card. It features 2048 SPUs along with 128 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 380X 190 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 10 Watts (5%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 380X will be 14% quicker than the Radeon HD 6950 2GB in general, because of its greater bandwidth. (explain)

Radeon R9 380X 182400 MB/sec
Radeon HD 6950 2GB 160000 MB/sec
Difference: 22400 (14%)

Texel Rate

The Radeon R9 380X should be a lot (about 76%) more effective at anisotropic filtering than the Radeon HD 6950 2GB. (explain)

Radeon R9 380X 124160 Mtexels/sec
Radeon HD 6950 2GB 70400 Mtexels/sec
Difference: 53760 (76%)

Pixel Rate

The Radeon R9 380X should be much (more or less 21%) more effective at anti-aliasing than the Radeon HD 6950 2GB, and also should be able to handle higher resolutions more effectively. (explain)

Radeon R9 380X 31040 Mpixels/sec
Radeon HD 6950 2GB 25600 Mpixels/sec
Difference: 5440 (21%)

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 6950 2GB

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 6950 2GB Radeon R9 380X
Manufacturer AMD AMD
Year December 2010 November 2015
Code Name Cayman Pro Tonga XT
Memory 2048 MB 4096 MB
Core Speed 800 MHz 970 MHz
Memory Speed 5000 MHz 5700 MHz
Power (Max TDP) 200 watts 190 watts
Bandwidth 160000 MB/sec 182400 MB/sec
Texel Rate 70400 Mtexels/sec 124160 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 31040 Mpixels/sec
Unified Shaders 1408 2048
Texture Mapping Units 88 128
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 maximum amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics 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 that the graphics chip can possibly record to the 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 clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6950 2GB

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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