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GeForce GTX 590 vs Radeon HD 6950 2GB

Intro

The GeForce GTX 590 has core speeds of 607 MHz on the GPU, and 855 MHz on the 1536 MB of GDDR5 RAM. It features 512 SPUs as well as 64 Texture Address Units and 48 Rasterization Operator Units.

Compare those specs to the Radeon HD 6950 2GB, which 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 model. It features 1408 SPUs as well as 88 Texture Address Units and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950 2GB 200 Watts
GeForce GTX 590 365 Watts
Difference: 165 Watts (83%)

Memory Bandwidth

Theoretically, the GeForce GTX 590 should perform quite a bit faster than the Radeon HD 6950 2GB overall. (explain)

GeForce GTX 590 328320 MB/sec
Radeon HD 6950 2GB 160000 MB/sec
Difference: 168320 (105%)

Texel Rate

The GeForce GTX 590 is just a bit (more or less 10%) faster with regards to texture filtering than the Radeon HD 6950 2GB. (explain)

GeForce GTX 590 77696 Mtexels/sec
Radeon HD 6950 2GB 70400 Mtexels/sec
Difference: 7296 (10%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 590 is superior to the Radeon HD 6950 2GB, by far. (explain)

GeForce GTX 590 58272 Mpixels/sec
Radeon HD 6950 2GB 25600 Mpixels/sec
Difference: 32672 (128%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 590

Amazon.com

Check prices at:

Radeon HD 6950 2GB

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 GeForce GTX 590 Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year March 2011 December 2010
Code Name GF110 Cayman Pro
Memory 1536 MB (x2) 2048 MB
Core Speed 607 MHz (x2) 800 MHz
Memory Speed 3420 MHz (x2) 5000 MHz
Power (Max TDP) 365 watts 200 watts
Bandwidth 328320 MB/sec 160000 MB/sec
Texel Rate 77696 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 58272 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 512 (x2) 1408
Texture Mapping Units 64 (x2) 88
Render Output Units 48 (x2) 32
Bus Type GDDR5 GDDR5
Bus Width 384-bit (x2) 256-bit
Fab Process 40 nm 40 nm
Transistors 3000 million 2640 million
Bus PCIe 2.0 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the 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 most pixels the graphics card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 590

Amazon.com

Check prices at:

Radeon HD 6950 2GB

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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