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Radeon HD 5750 512MB vs Radeon HD 6770

Intro

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

Compare that to the Radeon HD 6770, which comes with a clock frequency of 900 MHz and a GDDR5 memory frequency of 1050 MHz. It also uses a 128-bit memory bus, and uses a 40 nm design. It is made up of 800 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
Radeon HD 6770 108 Watts
Difference: 22 Watts (26%)

Memory Bandwidth

The Radeon HD 5750 512MB should theoretically perform a small bit faster than the Radeon HD 6770 overall. (explain)

Radeon HD 5750 512MB 73600 MB/sec
Radeon HD 6770 67200 MB/sec
Difference: 6400 (10%)

Texel Rate

The Radeon HD 6770 will be a lot (more or less 43%) more effective at AF than the Radeon HD 5750 512MB. (explain)

Radeon HD 6770 36000 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 10800 (43%)

Pixel Rate

The Radeon HD 6770 should be a lot (more or less 29%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 512MB, and capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6770 14400 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 3200 (29%)

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 6770

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 6770
Manufacturer AMD AMD
Year October 13, 2009 January 2011
Code Name Juniper LE Juniper XT
Memory 512 MB 512 MB
Core Speed 700 MHz 900 MHz
Memory Speed 4600 MHz 4200 MHz
Power (Max TDP) 86 watts 108 watts
Bandwidth 73600 MB/sec 67200 MB/sec
Texel Rate 25200 Mtexels/sec 36000 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 14400 Mpixels/sec
Unified Shaders 720(144x5) 800
Texture Mapping Units 36 40
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 4.1

Memory Bandwidth: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported across the external memory interface in a second. It is calculated by multiplying the bus width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. 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 quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 5750 512MB

Amazon.com

Check prices at:

Radeon HD 6770

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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