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Radeon HD 5750 1GB vs Radeon HD 7770

Intro

The Radeon HD 5750 1GB comes with a GPU clock speed of 700 MHz, and the 1024 MB of GDDR5 memory runs at 1150 MHz through a 128-bit bus. It also features 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Compare those specifications to the Radeon HD 7770, which comes with GPU core speed of 1000 MHz, and 1024 MB of GDDR5 RAM set to run at 1125 MHz through a 128-bit bus. It also features 640 SPUs, 40 TAUs, and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7770 80 Watts
Radeon HD 5750 1GB 86 Watts
Difference: 6 Watts (8%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 1GB should perform just a bit faster than the Radeon HD 7770 in general. (explain)

Radeon HD 5750 1GB 73600 MB/sec
Radeon HD 7770 72000 MB/sec
Difference: 1600 (2%)

Texel Rate

The Radeon HD 7770 is a lot (more or less 59%) more effective at texture filtering than the Radeon HD 5750 1GB. (explain)

Radeon HD 7770 40000 Mtexels/sec
Radeon HD 5750 1GB 25200 Mtexels/sec
Difference: 14800 (59%)

Pixel Rate

The Radeon HD 7770 should be quite a bit (approximately 43%) faster with regards to AA than the Radeon HD 5750 1GB, and able to handle higher screen resolutions while still performing well. (explain)

Radeon HD 7770 16000 Mpixels/sec
Radeon HD 5750 1GB 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 1GB

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 1GB Radeon HD 7770
Manufacturer AMD AMD
Year October 13, 2009 February 2012
Code Name Juniper LE Cape Verde XT
Memory 1024 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 data (in units of MB per second) that can be moved over the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 once 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, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling 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 that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core speed of the card. 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 fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

Hide Prices

Radeon HD 5750 1GB

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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