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Radeon HD 4830 512MB vs Radeon HD 5670

Intro

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

Compare those specs to the Radeon HD 5670, which comes with a clock speed of 775 MHz and a GDDR5 memory speed of 1000 MHz. It also uses a 128-bit memory bus, and makes use of a 40 nm design. It features 400(80x5) SPUs, 20 TAUs, and 8 Raster Operation 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

As far as performance goes, the Radeon HD 5670 should in theory be just a bit better than the Radeon HD 4830 512MB in general. (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 little bit (more or less 19%) more effective at anisotropic 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

The Radeon HD 4830 512MB should be much (more or less 48%) faster with regards to full screen anti-aliasing than the Radeon HD 5670, and will be able to handle higher screen resolutions better. (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 (in units of MB per second) that can be moved past the external memory interface in one second. The number is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher 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 texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability 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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