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GeForce GTX 560 vs Radeon HD 6950 2GB

Intro

The GeForce GTX 560 features a clock speed of 810 MHz and a GDDR5 memory speed of 1001 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is comprised of 336 SPUs, 56 Texture Address Units, and 32 Raster Operation Units.

Compare that to the Radeon HD 6950 2GB, which has core clock speeds of 800 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 560 150 Watts
Radeon HD 6950 2GB 200 Watts
Difference: 50 Watts (33%)

Memory Bandwidth

Performance-wise, the Radeon HD 6950 2GB should theoretically be a lot superior to the GeForce GTX 560 in general. (explain)

Radeon HD 6950 2GB 160000 MB/sec
GeForce GTX 560 128128 MB/sec
Difference: 31872 (25%)

Texel Rate

The Radeon HD 6950 2GB is quite a bit (about 55%) faster with regards to AF than the GeForce GTX 560. (explain)

Radeon HD 6950 2GB 70400 Mtexels/sec
GeForce GTX 560 45360 Mtexels/sec
Difference: 25040 (55%)

Pixel Rate

If using high levels of AA is important to you, then the GeForce GTX 560 is the winner, though not by far. (explain)

GeForce GTX 560 25920 Mpixels/sec
Radeon HD 6950 2GB 25600 Mpixels/sec
Difference: 320 (1%)

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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GeForce GTX 560

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 560 Radeon HD 6950 2GB
Manufacturer nVidia AMD
Year May 2011 December 2010
Code Name GF114 Cayman Pro
Memory 1024 MB 2048 MB
Core Speed 810 MHz 800 MHz
Memory Speed 4004 MHz 5000 MHz
Power (Max TDP) 150 watts 200 watts
Bandwidth 128128 MB/sec 160000 MB/sec
Texel Rate 45360 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 25920 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 336 1408
Texture Mapping Units 56 88
Render Output Units 32 32
Bus Type GDDR5 GDDR5
Bus Width 256-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1950 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: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be transferred past the external memory interface within a second. It is calculated by multiplying the card's interface width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the 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 that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 560

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.

Comments

One Response to “GeForce GTX 560 vs Radeon HD 6950 2GB”
Some Dude says:

Thank you so much for this! I think I'll go with a 6950, lol

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