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Radeon HD 5750 512MB vs Radeon HD 6770 1GB

Intro

The Radeon HD 5750 512MB features 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 all of that to the Radeon HD 6770 1GB, which has a core clock frequency of 900 MHz and a GDDR5 memory speed of 1050 MHz. It also features a 128-bit bus, and makes use of a 40 nm design. It is comprised of 800 SPUs, 40 Texture Address Units, 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 1GB 108 Watts
Difference: 22 Watts (26%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 512MB should theoretically be a bit superior to the Radeon HD 6770 1GB overall. (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%) better at anisotropic 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

The Radeon HD 6770 1GB should be much (approximately 29%) more effective at anti-aliasing than the Radeon HD 5750 512MB, and also capable of handling higher screen resolutions better. (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

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.

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 maximum amount of data (counted in MB per second) that can be moved across the external memory interface in a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's 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 number of texture map elements (texels) that are applied in one second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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