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Radeon HD 6950 vs Radeon R7 M260X

Intro

The Radeon HD 6950 comes with a GPU clock speed of 800 MHz, and the 1024 MB of GDDR5 memory is set to run at 1250 MHz through a 256-bit bus. It also features 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Compare that to the Radeon R7 M260X, which features a clock frequency of 825 MHz and a GDDR5 memory speed of 1000 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up of 384 SPUs, 24 Texture Address Units, and 8 ROPs.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

In theory, the Radeon HD 6950 is 150% quicker than the Radeon R7 M260X overall, due to its higher bandwidth. (explain)

Radeon HD 6950 160000 MB/sec
Radeon R7 M260X 64000 MB/sec
Difference: 96000 (150%)

Texel Rate

The Radeon HD 6950 will be much (about 256%) more effective at AF than the Radeon R7 M260X. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 50600 (256%)

Pixel Rate

The Radeon HD 6950 should be a lot (approximately 288%) more effective at FSAA than the Radeon R7 M260X, and should be able to handle higher resolutions while still performing well. (explain)

Radeon HD 6950 25600 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 19000 (288%)

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

Amazon.com

Check prices at:

Radeon R7 M260X

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 Radeon R7 M260X
Manufacturer AMD AMD
Year December 2010 June 2014
Code Name Cayman Pro Opal
Memory 1024 MB 2048 MB
Core Speed 800 MHz 825 MHz
Memory Speed 5000 MHz 4000 MHz
Power (Max TDP) 200 watts (Unknown) watts
Bandwidth 160000 MB/sec 64000 MB/sec
Texel Rate 70400 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 1408 384
Texture Mapping Units 88 24
Render Output Units 32 8
Bus Type GDDR5 GDDR5
Bus Width 256-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 2640 million (Unknown) million
Bus PCIe x16 PCIe 3.0 x8
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Bandwidth is the max amount of information (measured in MB per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's 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 are applied 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 this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6950

Amazon.com

Check prices at:

Radeon R7 M260X

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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