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Radeon HD 5670 vs Radeon HD 5750 1GB

Intro

The Radeon HD 5670 features a core clock speed of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It is made up of 400(80x5) SPUs, 20 Texture Address Units, and 8 Raster Operation Units.

Compare that to the Radeon HD 5750 1GB, which uses a 40 nm design. AMD has clocked the core speed at 700 MHz. The GDDR5 memory runs at a frequency of 1150 MHz on this card. It features 720(144x5) SPUs along with 36 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon HD 5750 1GB 86 Watts
Difference: 25 Watts (41%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5750 1GB should theoretically be a small bit superior to the Radeon HD 5670 in general. (explain)

Radeon HD 5750 1GB 73600 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 9600 (15%)

Texel Rate

The Radeon HD 5750 1GB should be quite a bit (more or less 63%) more effective at anisotropic filtering than the Radeon HD 5670. (explain)

Radeon HD 5750 1GB 25200 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 9700 (63%)

Pixel Rate

The Radeon HD 5750 1GB should be a lot (more or less 81%) more effective at FSAA than the Radeon HD 5670, and should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon HD 5750 1GB 11200 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 5000 (81%)

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 5670

Amazon.com

Check prices at:

Radeon HD 5750 1GB

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 5670 Radeon HD 5750 1GB
Manufacturer AMD AMD
Year January 14, 2010 October 13, 2009
Code Name Redwood XT Juniper LE
Memory 1024 MB 1024 MB
Core Speed 775 MHz 700 MHz
Memory Speed 4000 MHz 4600 MHz
Power (Max TDP) 61 watts 86 watts
Bandwidth 64000 MB/sec 73600 MB/sec
Texel Rate 15500 Mtexels/sec 25200 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 11200 Mpixels/sec
Unified Shaders 400(80x5) 720(144x5)
Texture Mapping Units 20 36
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 128-bit
Fab Process 40 nm 40 nm
Transistors 627 million 1040 million
Bus PCIe 2.1 x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 3.2 OpenGL 3.2

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If 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, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total texture units by the core clock speed of the chip. The better this number, 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 number of pixels that the graphics card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel 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

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Radeon HD 5670

Amazon.com

Check prices at:

Radeon HD 5750 1GB

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.

Comments

2 Responses to “Radeon HD 5670 vs Radeon HD 5750 1GB”
GretaDillard29 says:

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trx says:

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