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GeForce GTX 550 Ti vs Radeon HD 6950

Intro

The GeForce GTX 550 Ti has core speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs as well as 32 TAUs and 24 Rasterization Operator Units.

Compare those specifications to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core frequency at 800 MHz. The GDDR5 memory runs at a speed of 1250 MHz on this model. It features 1408 SPUs along with 88 Texture Address Units and 32 ROPs.

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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 550 Ti 1897 points
Difference: 1343 (71%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti 116 Watts
Radeon HD 6950 200 Watts
Difference: 84 Watts (72%)

Memory Bandwidth

In theory, the Radeon HD 6950 will be 62% quicker than the GeForce GTX 550 Ti overall, due to its greater bandwidth. (explain)

Radeon HD 6950 160000 MB/sec
GeForce GTX 550 Ti 98496 MB/sec
Difference: 61504 (62%)

Texel Rate

The Radeon HD 6950 should be much (approximately 144%) better at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

Radeon HD 6950 70400 Mtexels/sec
GeForce GTX 550 Ti 28800 Mtexels/sec
Difference: 41600 (144%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6950 is the winner, not by a very large margin though. (explain)

Radeon HD 6950 25600 Mpixels/sec
GeForce GTX 550 Ti 21600 Mpixels/sec
Difference: 4000 (19%)

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 550 Ti

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 550 Ti Radeon HD 6950
Manufacturer nVidia AMD
Year March 2011 December 2010
Code Name GF116 Cayman Pro
Memory 1024 MB 1024 MB
Core Speed 900 MHz 800 MHz
Memory Speed 4104 MHz 5000 MHz
Power (Max TDP) 116 watts 200 watts
Bandwidth 98496 MB/sec 160000 MB/sec
Texel Rate 28800 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 21600 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 192 1408
Texture Mapping Units 32 88
Render Output Units 24 32
Bus Type GDDR5 GDDR5
Bus Width 192-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1170 million 2640 million
Bus PCIe 2.1 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 (measured in MB per second) that can be transported across the external memory interface within a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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GeForce GTX 550 Ti

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.

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