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Radeon HD 6950 vs Radeon R9 M290X

Intro

The Radeon HD 6950 uses a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM runs at a frequency of 1250 MHz on this particular card. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

Compare those specs to the Radeon R9 M290X, which comes with GPU clock speed of 850 MHz, and 4096 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is made up of 1280 Stream Processors, 80 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R9 M290X 100 Watts
Radeon HD 6950 200 Watts
Difference: 100 Watts (100%)

Memory Bandwidth

The Radeon HD 6950 should theoretically perform just a bit faster than the Radeon R9 M290X in general. (explain)

Radeon HD 6950 160000 MB/sec
Radeon R9 M290X 153600 MB/sec
Difference: 6400 (4%)

Texel Rate

The Radeon HD 6950 is a bit (more or less 4%) faster with regards to AF than the Radeon R9 M290X. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon R9 M290X 68000 Mtexels/sec
Difference: 2400 (4%)

Pixel Rate

The Radeon R9 M290X will be a small bit (approximately 6%) better at full screen anti-aliasing than the Radeon HD 6950, and will be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon R9 M290X 27200 Mpixels/sec
Radeon HD 6950 25600 Mpixels/sec
Difference: 1600 (6%)

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 R9 M290X

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 R9 M290X
Manufacturer AMD AMD
Year December 2010 May 1 2014
Code Name Cayman Pro Neptune XT
Memory 1024 MB 4096 MB
Core Speed 800 MHz 850 MHz
Memory Speed 5000 MHz 4800 MHz
Power (Max TDP) 200 watts 100 watts
Bandwidth 160000 MB/sec 153600 MB/sec
Texel Rate 70400 Mtexels/sec 68000 Mtexels/sec
Pixel Rate 25600 Mpixels/sec 27200 Mpixels/sec
Unified Shaders 1408 1280
Texture Mapping Units 88 80
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 largest amount of data (measured in megabytes per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 in one second. This number is worked out by multiplying the total texture units of the card by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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

Display Prices

Hide Prices

Radeon HD 6950

Amazon.com

Check prices at:

Radeon R9 M290X

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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