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Radeon HD 4350 vs Radeon HD 4550 512MB

Intro

The Radeon HD 4350 features core clock speeds of 575 MHz on the GPU, and 500 MHz on the 512 MB of DDR2 memory. It features 80(16x5) SPUs as well as 8 TAUs and 4 Rasterization Operator Units.

Compare all of that to the Radeon HD 4550 512MB, which makes use of a 55 nm design. AMD has set the core frequency at 600 MHz. The GDDR3 memory runs at a frequency of 800 MHz on this specific model. It features 80(16x5) SPUs along with 8 Texture Address Units and 4 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4350 22 Watts
Radeon HD 4550 512MB 25 Watts
Difference: 3 Watts (14%)

Memory Bandwidth

As far as performance goes, the Radeon HD 4550 512MB should theoretically be quite a bit superior to the Radeon HD 4350 in general. (explain)

Radeon HD 4550 512MB 12800 MB/sec
Radeon HD 4350 8000 MB/sec
Difference: 4800 (60%)

Texel Rate

The Radeon HD 4550 512MB should be just a bit (approximately 4%) faster with regards to texture filtering than the Radeon HD 4350. (explain)

Radeon HD 4550 512MB 4800 Mtexels/sec
Radeon HD 4350 4600 Mtexels/sec
Difference: 200 (4%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 4550 512MB is the winner, not by a very large margin though. (explain)

Radeon HD 4550 512MB 2400 Mpixels/sec
Radeon HD 4350 2300 Mpixels/sec
Difference: 100 (4%)

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 4350

Amazon.com

Check prices at:

Radeon HD 4550 512MB

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 4350 Radeon HD 4550 512MB
Manufacturer AMD AMD
Year Sep 30, 2008 Sep 30, 2008
Code Name RV710 RV710
Memory 512 MB 512 MB
Core Speed 575 MHz 600 MHz
Memory Speed 1000 MHz 1600 MHz
Power (Max TDP) 22 watts 25 watts
Bandwidth 8000 MB/sec 12800 MB/sec
Texel Rate 4600 Mtexels/sec 4800 Mtexels/sec
Pixel Rate 2300 Mpixels/sec 2400 Mpixels/sec
Unified Shaders 80(16x5) 80(16x5)
Texture Mapping Units 8 8
Render Output Units 4 4
Bus Type DDR2 GDDR3
Bus Width 64-bit 64-bit
Fab Process 55 nm 55 nm
Transistors 242 million 242 million
Bus PCIe 2.0 x16, PCI PCIe 2.0 x16
DirectX Version DirectX 10.1 DirectX 10.1
OpenGL Version OpenGL 3.0 OpenGL 3.0

Memory Bandwidth: Memory bandwidth is the max amount of data (in units of MB per second) that can be moved across the external memory interface in a second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better 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 clock speed of the chip. The higher 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 amount of pixels that the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4350

Amazon.com

Check prices at:

Radeon HD 4550 512MB

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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