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Radeon HD 4550 256MB vs Radeon HD 5830

Intro

The Radeon HD 4550 256MB features core clock speeds of 600 MHz on the GPU, and 800 MHz on the 256 MB of DDR3 memory. It features 80(16x5) SPUs as well as 8 Texture Address Units and 4 Rasterization Operator Units.

Compare those specs 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 is set to run at a speed of 1000 MHz on this model. It features 1120(224x5) SPUs along with 56 TAUs and 16 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 256MB 25 Watts
Radeon HD 5830 175 Watts
Difference: 150 Watts (600%)

Memory Bandwidth

In theory, the Radeon HD 5830 should be quite a bit faster than the Radeon HD 4550 256MB in general. (explain)

Radeon HD 5830 128000 MB/sec
Radeon HD 4550 256MB 12800 MB/sec
Difference: 115200 (900%)

Texel Rate

The Radeon HD 5830 should be much (approximately 833%) more effective at texture filtering than the Radeon HD 4550 256MB. (explain)

Radeon HD 5830 44800 Mtexels/sec
Radeon HD 4550 256MB 4800 Mtexels/sec
Difference: 40000 (833%)

Pixel Rate

The Radeon HD 5830 is quite a bit (approximately 433%) better at anti-aliasing than the Radeon HD 4550 256MB, and will be able to handle higher resolutions more effectively. (explain)

Radeon HD 5830 12800 Mpixels/sec
Radeon HD 4550 256MB 2400 Mpixels/sec
Difference: 10400 (433%)

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 4550 256MB

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 4550 256MB Radeon HD 5830
Manufacturer AMD AMD
Year Sep 30, 2008 February 25, 2010
Code Name RV710 Cypress LE
Memory 256 MB 1024 MB
Core Speed 600 MHz 800 MHz
Memory Speed 1600 MHz 4000 MHz
Power (Max TDP) 25 watts 175 watts
Bandwidth 12800 MB/sec 128000 MB/sec
Texel Rate 4800 Mtexels/sec 44800 Mtexels/sec
Pixel Rate 2400 Mpixels/sec 12800 Mpixels/sec
Unified Shaders 80(16x5) 1120(224x5)
Texture Mapping Units 8 56
Render Output Units 4 16
Bus Type DDR3 GDDR5
Bus Width 64-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 242 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: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4550 256MB

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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