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Radeon HD 5750 1GB vs Radeon HD 7750

Intro

The Radeon HD 5750 1GB comes with a clock speed of 700 MHz and a GDDR5 memory frequency of 1150 MHz. It also makes use of a 128-bit memory bus, and uses a 40 nm design. It is comprised of 720(144x5) SPUs, 36 TAUs, and 16 Raster Operation Units.

Compare that to the Radeon HD 7750, which comes with core clock speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 512 SPUs along with 32 Texture Address Units and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7750 55 Watts
Radeon HD 5750 1GB 86 Watts
Difference: 31 Watts (56%)

Memory Bandwidth

The Radeon HD 5750 1GB should theoretically perform a bit faster than the Radeon HD 7750 in general. (explain)

Radeon HD 5750 1GB 73600 MB/sec
Radeon HD 7750 72000 MB/sec
Difference: 1600 (2%)

Texel Rate

The Radeon HD 7750 is a little bit (approximately 2%) better at AF than the Radeon HD 5750 1GB. (explain)

Radeon HD 7750 25600 Mtexels/sec
Radeon HD 5750 1GB 25200 Mtexels/sec
Difference: 400 (2%)

Pixel Rate

The Radeon HD 7750 should be a little bit (more or less 14%) faster with regards to full screen anti-aliasing than the Radeon HD 5750 1GB, and also will be capable of handling higher resolutions while still performing well. (explain)

Radeon HD 7750 12800 Mpixels/sec
Radeon HD 5750 1GB 11200 Mpixels/sec
Difference: 1600 (14%)

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 7750

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 7750
Manufacturer AMD AMD
Year October 13, 2009 February 2012
Code Name Juniper LE Cape Verde Pro
Memory 1024 MB 1024 MB
Core Speed 700 MHz 800 MHz
Memory Speed 4600 MHz 4500 MHz
Power (Max TDP) 86 watts 55 watts
Bandwidth 73600 MB/sec 72000 MB/sec
Texel Rate 25200 Mtexels/sec 25600 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 720(144x5) 512
Texture Mapping Units 36 32
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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred past the external memory interface within a second. It is worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the clock 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 lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

Radeon HD 5750 1GB

Amazon.com

Check prices at:

Radeon HD 7750

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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