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GeForce GTX 560 vs Radeon HD 6950

Intro

The GeForce GTX 560 makes use of a 40 nm design. nVidia has clocked the core speed at 810 MHz. The GDDR5 RAM works at a speed of 1001 MHz on this card. It features 336 SPUs as well as 56 TAUs and 32 ROPs.

Compare all of that to the Radeon HD 6950, which comes with clock speeds of 800 MHz on the GPU, and 1250 MHz on the 1024 MB of GDDR5 memory. It features 1408 SPUs along with 88 Texture Address Units and 32 Rasterization Operator 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
GeForce GTX 560 3030 points
Difference: 210 (7%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

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

Memory Bandwidth

The Radeon HD 6950 should in theory be a lot faster than the GeForce GTX 560 overall. (explain)

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

Texel Rate

The Radeon HD 6950 is much (more or less 55%) better at AF than the GeForce GTX 560. (explain)

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

Pixel Rate

The GeForce GTX 560 will be a bit (more or less 1%) faster with regards to AA than the Radeon HD 6950, and also able to handle higher screen resolutions without losing too much performance. (explain)

GeForce GTX 560 25920 Mpixels/sec
Radeon HD 6950 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

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
Manufacturer nVidia AMD
Year May 2011 December 2010
Code Name GF114 Cayman Pro
Memory 1024 MB 1024 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: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at handling 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 can possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 560

Amazon.com

Check prices at:

Radeon HD 6950

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

2 Responses to “GeForce GTX 560 vs Radeon HD 6950”
6950 VS 560Ti- EPIC BATTLE - Digit Technology Discussion Forum says:

[...] – Performance Comparison Benchmarks @ Hardware Compare GTX-560 VS HD6950 -- 1GB versions GeForce GTX 560 vs Radeon HD 6950 – Performance Comparison Benchmarks @ Hardware Compare Both are equally good, being a AMD GPU lover i am with GTX-560Ti in this case. [...]

larsV12 says:

Why you should believe none of what you hear and only half of what you see: http://www.tomshardware.com/forum/307584-33-5870-6950-dont

Apparently, a Tom's H/W "Guru" predicted the 560 would be a superior card .. how'd that turn out??? What a load of fooey. People, do your own research & gather as much background on cards before committing to any particular model or brand.

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