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Radeon HD 5750 512MB vs Radeon HD 6750

Intro

The Radeon HD 5750 512MB has a clock speed of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is comprised of 720(144x5) SPUs, 36 TAUs, and 16 ROPs.

Compare all of that to the Radeon HD 6750, which features a GPU core clock speed of 725 MHz, and 512 MB of GDDR5 RAM set to run at 1000 MHz through a 128-bit bus. It also features 720 Stream Processors, 36 Texture Address Units, and 16 Raster Operation 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 superior to 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 (more or less 4%) faster with regards to anisotropic 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

The Radeon HD 6750 will be a small bit (approximately 4%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 512MB, and should be capable of handling higher screen resolutions without slowing down too much. (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: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max 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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