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Radeon HD 6950 2GB vs Radeon R9 M295X

Intro

The Radeon HD 6950 2GB has a GPU core speed of 800 MHz, and the 2048 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 those specs to the Radeon R9 M295X, which has core speeds of 750 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 memory. 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 M295X 125 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 75 Watts (60%)

Memory Bandwidth

In theory, the Radeon R9 M295X will be 10% quicker than the Radeon HD 6950 2GB in general, because of its greater data rate. (explain)

Radeon R9 M295X 176000 MB/sec
Radeon HD 6950 2GB 160000 MB/sec
Difference: 16000 (10%)

Texel Rate

The Radeon R9 M295X is quite a bit (about 36%) more effective at anisotropic filtering than the Radeon HD 6950 2GB. (explain)

Radeon R9 M295X 96000 Mtexels/sec
Radeon HD 6950 2GB 70400 Mtexels/sec
Difference: 25600 (36%)

Pixel Rate

The Radeon HD 6950 2GB is a small bit (approximately 7%) better at full screen anti-aliasing than the Radeon R9 M295X, and will be able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 6950 2GB 25600 Mpixels/sec
Radeon R9 M295X 24000 Mpixels/sec
Difference: 1600 (7%)

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 M295X

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 M295X
Manufacturer AMD AMD
Year December 2010 2014
Code Name Cayman Pro Unknown
Memory 2048 MB 4096 MB
Core Speed 800 MHz 750 MHz
Memory Speed 5000 MHz 5500 MHz
Power (Max TDP) 200 watts 125 watts
Bandwidth 160000 MB/sec 176000 MB/sec
Texel Rate 70400 Mtexels/sec 96000 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 24000 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 (Unknown) million
Bus PCIe x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.2
OpenGL Version OpenGL 4.1 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the interface width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many 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 6950 2GB

Amazon.com

Check prices at:

Radeon R9 M295X

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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