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Radeon HD 5750 512MB vs Radeon HD 7850

Intro

The Radeon HD 5750 512MB features a GPU clock speed of 700 MHz, and the 512 MB of GDDR5 RAM is set to run at 1150 MHz through a 128-bit bus. It also is comprised of 720(144x5) SPUs, 36 TAUs, and 16 ROPs.

Compare all of that to the Radeon HD 7850, which makes use of a 28 nm design. AMD has set the core frequency at 860 MHz. The GDDR5 RAM runs at a frequency of 1200 MHz on this particular model. It features 1024 SPUs as well as 64 TAUs and 32 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB 86 Watts
Radeon HD 7850 130 Watts
Difference: 44 Watts (51%)

Memory Bandwidth

The Radeon HD 7850 should theoretically be a lot faster than the Radeon HD 5750 512MB in general. (explain)

Radeon HD 7850 153600 MB/sec
Radeon HD 5750 512MB 73600 MB/sec
Difference: 80000 (109%)

Texel Rate

The Radeon HD 7850 should be a lot (about 118%) more effective at AF than the Radeon HD 5750 512MB. (explain)

Radeon HD 7850 55040 Mtexels/sec
Radeon HD 5750 512MB 25200 Mtexels/sec
Difference: 29840 (118%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 7850 is the winner, and very much so. (explain)

Radeon HD 7850 27520 Mpixels/sec
Radeon HD 5750 512MB 11200 Mpixels/sec
Difference: 16320 (146%)

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 7850

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 7850
Manufacturer AMD AMD
Year October 13, 2009 March 2012
Code Name Juniper LE Pitcairn Pro
Memory 512 MB 2048 MB
Core Speed 700 MHz 860 MHz
Memory Speed 4600 MHz 4800 MHz
Power (Max TDP) 86 watts 130 watts
Bandwidth 73600 MB/sec 153600 MB/sec
Texel Rate 25200 Mtexels/sec 55040 Mtexels/sec
Pixel Rate 11200 Mpixels/sec 27520 Mpixels/sec
Unified Shaders 720(144x5) 1024
Texture Mapping Units 36 64
Render Output Units 16 32
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 28 nm
Transistors 1040 million 2800 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 largest amount of data (counted in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This figure is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at handling 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 the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the card's 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 also depends on quite a few other factors, especially the memory bandwidth - the lower the memory 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 7850

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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