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Radeon HD 5750 512MB vs Radeon HD 7770

Intro

The Radeon HD 5750 512MB has core clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 memory. It features 720(144x5) SPUs as well as 36 TAUs and 16 Rasterization Operator Units.

Compare those specifications to the Radeon HD 7770, which comes with a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 640 SPUs, 40 TAUs, and 16 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
Radeon HD 5750 512MB 86 Watts
Difference: 6 Watts (8%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 512MB is 2% quicker than the Radeon HD 7770 in general, because of its higher bandwidth. (explain)

Radeon HD 5750 512MB 73600 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 1600 (2%)

Texel Rate

The Radeon HD 7770 is a lot (approximately 59%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

Radeon HD 7770 40000 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 14800 (59%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 7770 is superior to the Radeon HD 5750 512MB, and very much so. (explain)

Radeon HD 7770 16000 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 4800 (43%)

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 7770

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 7770
Manufacturer AMD AMD
Year October 13, 2009 February 2012
Code Name Juniper LE Cape Verde XT
Memory 512 MB 1024 MB
Core Speed 700 MHz 1000 MHz
Memory Speed 4600 MHz 4500 MHz
Power (Max TDP) 86 watts 80 watts
Bandwidth 73600 MB/sec 72000 MB/sec
Texel Rate 25200 Mtexels/sec 40000 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 16000 Mpixels/sec
Unified Shaders 720(144x5) 640
Texture Mapping Units 36 40
Render Output Units 16 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 1500 million
Bus PCIe 2.1 x16 PCIe 3.0 x16
DirectX Version DirectX 11 DirectX 11.1
OpenGL Version OpenGL 3.2 OpenGL 4.2

Memory Bandwidth: Bandwidth is the max amount of information (in units of megabytes per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, 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 texture map elements (texels) that can be applied per second. This is calculated by multiplying the total texture units of the card by the core 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 maximum amount of pixels the video card could possibly write 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 the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel 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 maximum fill rate.

Display Prices

Hide Prices

Radeon HD 5750 512MB

Amazon.com

Check prices at:

Radeon HD 7770

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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