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Radeon HD 5750 1GB vs Radeon HD 6770

Intro

The Radeon HD 5750 1GB makes use of a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory is set to run at a speed of 1150 MHz on this particular card. It features 720(144x5) SPUs as well as 36 Texture Address Units and 16 ROPs.

Compare all 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 makes use of a 128-bit memory bus, and uses a 40 nm design. It is comprised 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 1GB 86 Watts
Radeon HD 6770 108 Watts
Difference: 22 Watts (26%)

Memory Bandwidth

In theory, the Radeon HD 5750 1GB is 10% quicker than the Radeon HD 6770 overall, due to its higher bandwidth. (explain)

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

Texel Rate

The Radeon HD 6770 should be much (about 43%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

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

Pixel Rate

The Radeon HD 6770 is quite a bit (more or less 29%) better at FSAA than the Radeon HD 5750 1GB, and also able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 6770 14400 Mpixels/sec
Radeon HD 5750 1GB 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 1GB

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 1GB Radeon HD 6770
Manufacturer AMD AMD
Year October 13, 2009 January 2011
Code Name Juniper LE Juniper XT
Memory 1024 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 maximum amount of data (measured in MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If the card has DDR type memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 amount of texture map elements (texels) that are processed in one second. This is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably 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 1GB

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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