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Radeon HD 4830 512MB vs Radeon HD 5670

Intro

The Radeon HD 4830 512MB features a GPU clock speed of 575 MHz, and the 512 MB of GDDR3 memory runs at 900 MHz through a 256-bit bus. It also is comprised of 640(128x5) SPUs, 32 TAUs, and 16 ROPs.

Compare that to the Radeon HD 5670, which features core speeds of 775 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 400(80x5) SPUs along with 20 TAUs and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5670 61 Watts
Radeon HD 4830 512MB 95 Watts
Difference: 34 Watts (56%)

Memory Bandwidth

Performance-wise, the Radeon HD 5670 should theoretically be a little bit better than the Radeon HD 4830 512MB overall. (explain)

Radeon HD 5670 64000 MB/sec
Radeon HD 4830 512MB 57600 MB/sec
Difference: 6400 (11%)

Texel Rate

The Radeon HD 4830 512MB will be a bit (more or less 19%) more effective at texture filtering than the Radeon HD 5670. (explain)

Radeon HD 4830 512MB 18400 Mtexels/sec
Radeon HD 5670 15500 Mtexels/sec
Difference: 2900 (19%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 4830 512MB is superior to the Radeon HD 5670, by far. (explain)

Radeon HD 4830 512MB 9200 Mpixels/sec
Radeon HD 5670 6200 Mpixels/sec
Difference: 3000 (48%)

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 4830 512MB

Amazon.com

Check prices at:

Radeon HD 5670

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 4830 512MB Radeon HD 5670
Manufacturer AMD AMD
Year Oct 21, 2008 January 14, 2010
Code Name RV770 LE Redwood XT
Memory 512 MB 1024 MB
Core Speed 575 MHz 775 MHz
Memory Speed 1800 MHz 4000 MHz
Power (Max TDP) 95 watts 61 watts
Bandwidth 57600 MB/sec 64000 MB/sec
Texel Rate 18400 Mtexels/sec 15500 Mtexels/sec
Pixel Rate 9200 Mpixels/sec 6200 Mpixels/sec
Unified Shaders 640(128x5) 400(80x5)
Texture Mapping Units 32 20
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 40 nm
Transistors 956 million 627 million
Bus PCIe 2.0 x16 PCIe 2.1 x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 3.2

Memory Bandwidth: Bandwidth is the largest amount of data (counted in MB per second) that can be transported over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4830 512MB

Amazon.com

Check prices at:

Radeon HD 5670

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

One Response to “Radeon HD 4830 512MB vs Radeon HD 5670”
idriss says:

really a great website keep going ,ty you very help me for choice buying , me and my friends .

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