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Radeon HD 4550 512MB vs Radeon HD 6970

Intro

The Radeon HD 4550 512MB has a GPU core speed of 600 MHz, and the 512 MB of GDDR3 memory runs at 800 MHz through a 64-bit bus. It also is made up of 80(16x5) Stream Processors, 8 Texture Address Units, and 4 Raster Operation Units.

Compare all of that to the Radeon HD 6970, which comes with core clock speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 96 TAUs and 32 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4550 512MB 25 Watts
Radeon HD 6970 250 Watts
Difference: 225 Watts (900%)

Memory Bandwidth

The Radeon HD 6970 should theoretically be much faster than the Radeon HD 4550 512MB in general. (explain)

Radeon HD 6970 176000 MB/sec
Radeon HD 4550 512MB 12800 MB/sec
Difference: 163200 (1275%)

Texel Rate

The Radeon HD 6970 will be quite a bit (about 1660%) better at texture filtering than the Radeon HD 4550 512MB. (explain)

Radeon HD 6970 84480 Mtexels/sec
Radeon HD 4550 512MB 4800 Mtexels/sec
Difference: 79680 (1660%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon HD 6970 is superior to the Radeon HD 4550 512MB, by far. (explain)

Radeon HD 6970 28160 Mpixels/sec
Radeon HD 4550 512MB 2400 Mpixels/sec
Difference: 25760 (1073%)

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 512MB

Amazon.com

Check prices at:

Radeon HD 6970

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 512MB Radeon HD 6970
Manufacturer AMD AMD
Year Sep 30, 2008 December 2010
Code Name RV710 Cayman XT
Memory 512 MB 2048 MB
Core Speed 600 MHz 880 MHz
Memory Speed 1600 MHz 5500 MHz
Power (Max TDP) 25 watts 250 watts
Bandwidth 12800 MB/sec 176000 MB/sec
Texel Rate 4800 Mtexels/sec 84480 Mtexels/sec
Pixel Rate 2400 Mpixels/sec 28160 Mpixels/sec
Unified Shaders 80(16x5) 1536
Texture Mapping Units 8 96
Render Output Units 4 32
Bus Type GDDR3 GDDR5
Bus Width 64-bit 256-bit
Fab Process 55 nm 40 nm
Transistors 242 million 2640 million
Bus PCIe 2.0 x16 PCIe x16
DirectX Version DirectX 10.1 DirectX 11
OpenGL Version OpenGL 3.0 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (counted in MB per second) that can be transported across the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, the result should be multiplied by 2 again. If 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output 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 max fill rate.

Display Prices

Hide Prices

Radeon HD 4550 512MB

Amazon.com

Check prices at:

Radeon HD 6970

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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