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Radeon HD 5750 512MB vs Radeon HD 6750

Intro

The Radeon HD 5750 512MB uses a 40 nm design. AMD has clocked the core frequency at 700 MHz. The GDDR5 RAM runs at a speed of 1150 MHz on this particular card. It features 720(144x5) SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

Compare all of that to the Radeon HD 6750, which has core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 RAM. It features 720 SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Both cards have the same power consumption.

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 512MB should in theory be a small bit better than the Radeon HD 6750 in general. (explain)

Radeon HD 5750 512MB 73600 MB/sec
Radeon HD 6750 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon HD 6750 will be a bit (about 4%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 6750 26100 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 900 (4%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6750 is superior to the Radeon HD 5750 512MB, but only just. (explain)

Radeon HD 6750 11600 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 400 (4%)

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

Check prices at:

Radeon HD 6750

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 Radeon HD 5750 512MB Radeon HD 6750
Manufacturer AMD AMD
Year October 13, 2009 January 2011
Code Name Juniper LE Juniper Pro
Memory 512 MB 512 MB
Core Speed 700 MHz 725 MHz
Memory Speed 4600 MHz 4000 MHz
Power (Max TDP) 86 watts 86 watts
Bandwidth 73600 MB/sec 64000 MB/sec
Texel Rate 25200 Mtexels/sec 26100 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 11600 Mpixels/sec
Unified Shaders 720(144x5) 720
Texture Mapping Units 36 36
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 1040 million 1040 million
Bus PCIe 2.1 x16 PCIe x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 4.0

Memory Bandwidth: Bandwidth is the maximum amount of data (in units of megabytes per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the 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 6750

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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