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Radeon HD 5750 512MB vs Radeon HD 6770 1GB

Intro

The Radeon HD 5750 512MB uses a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 Rasterization Operator Units.

Compare those specs to the Radeon HD 6770 1GB, which uses a 40 nm design. AMD has clocked the core speed at 900 MHz. The GDDR5 memory runs at a speed of 1050 MHz on this card. It features 800 SPUs as well as 40 Texture Address Units and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
Radeon HD 6770 1GB 108 Watts
Difference: 22 Watts (26%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 512MB should theoretically be a bit better than the Radeon HD 6770 1GB in general. (explain)

Radeon HD 5750 512MB 73600 MB/sec
Radeon HD 6770 1GB 67200 MB/sec
Difference: 6400 (10%)

Texel Rate

The Radeon HD 6770 1GB will be a lot (about 43%) more effective at texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 6770 1GB 36000 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 10800 (43%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon HD 6770 1GB is the winner, and very much so. (explain)

Radeon HD 6770 1GB 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

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Radeon HD 6770 1GB

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 1GB
Manufacturer AMD AMD
Year October 13, 2009 January 2011
Code Name Juniper LE Juniper XT
Memory 512 MB 1024 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 data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling 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 the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on many other factors, especially the memory bandwidth of the card - the lower the memory 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 1GB

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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