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Radeon HD 6950 vs Radeon R7 250

Intro

The Radeon HD 6950 uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory is set to run at a speed of 1250 MHz on this card. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.

Compare all of that to the Radeon R7 250, which has GPU core speed of 1000 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also is made up of 384 Stream Processors, 24 Texture Address Units, and 8 Raster Operation Units.

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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 HD 6950 3240 points
Radeon R7 250 1836 points
Difference: 1404 (76%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250 65 Watts
Radeon HD 6950 200 Watts
Difference: 135 Watts (208%)

Memory Bandwidth

The Radeon HD 6950 should theoretically perform a lot faster than the Radeon R7 250 overall. (explain)

Radeon HD 6950 160000 MB/sec
Radeon R7 250 73600 MB/sec
Difference: 86400 (117%)

Texel Rate

The Radeon HD 6950 will be quite a bit (more or less 193%) faster with regards to AF than the Radeon R7 250. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon R7 250 24000 Mtexels/sec
Difference: 46400 (193%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6950 is the winner, by a large margin. (explain)

Radeon HD 6950 25600 Mpixels/sec
Radeon R7 250 8000 Mpixels/sec
Difference: 17600 (220%)

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

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Radeon R7 250

Amazon.com

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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 250
Manufacturer AMD AMD
Year December 2010 October 2013
Code Name Cayman Pro Oland XT
Memory 1024 MB 1024 MB
Core Speed 800 MHz 1000 MHz
Memory Speed 5000 MHz 4600 MHz
Power (Max TDP) 200 watts 65 watts
Bandwidth 160000 MB/sec 73600 MB/sec
Texel Rate 70400 Mtexels/sec 24000 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 8000 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 1040 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: Bandwidth is the max amount of information (in units of MB per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is calculated by multiplying the total 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 in one second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write 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 - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 6950

Amazon.com

Check prices at:

Radeon R7 250

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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