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Radeon HD 4730 vs Radeon HD 5830

Intro

The Radeon HD 4730 has a core clock speed of 700 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 128-bit memory bus, and makes use of a 55 nm design. It features 640(128x5) SPUs, 32 Texture Address Units, and 8 ROPs.

Compare those specs to the Radeon HD 5830, which features clock speeds of 800 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 RAM. It features 1120(224x5) SPUs as well as 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4730 140 Watts
Radeon HD 5830 175 Watts
Difference: 35 Watts (25%)

Memory Bandwidth

The Radeon HD 5830, in theory, should perform a lot faster than the Radeon HD 4730 in general. (explain)

Radeon HD 5830 128000 MB/sec
Radeon HD 4730 57600 MB/sec
Difference: 70400 (122%)

Texel Rate

The Radeon HD 5830 will be a lot (more or less 100%) better at texture filtering than the Radeon HD 4730. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 4730 22400 Mtexels/sec
Difference: 22400 (100%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon HD 5830 is the winner, by a large margin. (explain)

Radeon HD 5830 12800 Mpixels/sec
Radeon HD 4730 5600 Mpixels/sec
Difference: 7200 (129%)

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 4730

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 4730 Radeon HD 5830
Manufacturer AMD AMD
Year Jun 8, 2009 February 25, 2010
Code Name RV770/CE Cypress LE
Memory 512 MB 1024 MB
Core Speed 700 MHz 800 MHz
Memory Speed 3600 MHz 4000 MHz
Power (Max TDP) 140 watts 175 watts
Bandwidth 57600 MB/sec 128000 MB/sec
Texel Rate 22400 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 5600 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 640(128x5) 1120(224x5)
Texture Mapping Units 32 56
Render Output Units 8 16
Bus Type GDDR5 GDDR5
Bus Width 128-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 956 million 2154 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 max amount of information (counted in megabytes per second) that can be transferred over 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 must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied 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 higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

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Radeon HD 4730

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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