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Radeon HD 5750 512MB vs Radeon HD 6950

Intro

The Radeon HD 5750 512MB comes with core speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. It features 720(144x5) SPUs along with 36 TAUs and 16 ROPs.

Compare that to the Radeon HD 6950, which comes with a core clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It is made up of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
Radeon HD 6950 200 Watts
Difference: 114 Watts (133%)

Memory Bandwidth

In theory, the Radeon HD 6950 will be 117% faster than the Radeon HD 5750 512MB in general, due to its higher bandwidth. (explain)

Radeon HD 6950 160000 MB/sec
Radeon HD 5750 512MB 73600 MB/sec
Difference: 86400 (117%)

Texel Rate

The Radeon HD 6950 is a lot (approximately 179%) better at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 6950 70400 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 45200 (179%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 6950 is superior to the Radeon HD 5750 512MB, by a large margin. (explain)

Radeon HD 6950 25600 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 14400 (129%)

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 5750 512MB

Amazon.com

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Radeon HD 6950

Amazon.com

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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 5750 512MB Radeon HD 6950
Manufacturer AMD AMD
Year October 13, 2009 December 2010
Code Name Juniper LE Cayman Pro
Memory 512 MB 1024 MB
Core Speed 700 MHz 800 MHz
Memory Speed 4600 MHz 5000 MHz
Power (Max TDP) 86 watts 200 watts
Bandwidth 73600 MB/sec 160000 MB/sec
Texel Rate 25200 Mtexels/sec 70400 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 25600 Mpixels/sec
Unified Shaders 720(144x5) 1408
Texture Mapping Units 36 88
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 1040 million 2640 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, 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 amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on lots of 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

Radeon HD 5750 512MB

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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