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Radeon HD 5670 vs Radeon HD 5830

Intro

The Radeon HD 5670 has a clock frequency of 775 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It features 400(80x5) SPUs, 20 TAUs, and 8 ROPs.

Compare all of that to the Radeon HD 5830, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 memory runs at a speed of 1000 MHz on this card. It features 1120(224x5) SPUs as well as 56 TAUs and 16 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon HD 5830 175 Watts
Difference: 114 Watts (187%)

Memory Bandwidth

As far as performance goes, the Radeon HD 5830 should theoretically be a lot superior to the Radeon HD 5670 overall. (explain)

Radeon HD 5830 128000 MB/sec
Radeon HD 5670 64000 MB/sec
Difference: 64000 (100%)

Texel Rate

The Radeon HD 5830 will be much (approximately 189%) faster with regards to texture filtering than the Radeon HD 5670. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 29300 (189%)

Pixel Rate

The Radeon HD 5830 is much (more or less 106%) faster with regards to anti-aliasing than the Radeon HD 5670, and should be able to handle higher screen resolutions more effectively. (explain)

Radeon HD 5830 12800 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 6600 (106%)

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 5830

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 5830
Manufacturer AMD AMD
Year January 14, 2010 February 25, 2010
Code Name Redwood XT Cypress LE
Memory 1024 MB 1024 MB
Core Speed 775 MHz 800 MHz
Memory Speed 4000 MHz 4000 MHz
Power (Max TDP) 61 watts 175 watts
Bandwidth 64000 MB/sec 128000 MB/sec
Texel Rate 15500 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 6200 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 400(80x5) 1120(224x5)
Texture Mapping Units 20 56
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 40 nm 40 nm
Transistors 627 million 2154 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 maximum amount of information (measured in megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum amount of pixels 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 ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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Radeon HD 5670

Amazon.com

Check prices at:

Radeon HD 5830

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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