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Radeon RX 550 vs Radeon RX 6800

Intro

The Radeon RX 550 has a GPU clock speed of 1100 MHz, and the 2048 MB of GDDR5 memory runs at 1750 MHz through a 128-bit bus. It also is made up of 512 SPUs, 32 TAUs, and 16 ROPs.

Compare those specs to the Radeon RX 6800, which features core speeds of 1700 MHz on the GPU, and 2000 MHz on the 16384 MB of GDDR6 memory. It features 3840 SPUs as well as 240 TAUs and 96 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
Radeon RX 6800 250 Watts
Difference: 200 Watts (400%)

Memory Bandwidth

Theoretically, the Radeon RX 6800 should be much faster than the Radeon RX 550 overall. (explain)

Radeon RX 6800 524288 MB/sec
Radeon RX 550 114688 MB/sec
Difference: 409600 (357%)

Texel Rate

The Radeon RX 6800 is quite a bit (more or less 1059%) better at anisotropic filtering than the Radeon RX 550. (explain)

Radeon RX 6800 408000 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 372800 (1059%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6800 is superior to the Radeon RX 550, by a large margin. (explain)

Radeon RX 6800 163200 Mpixels/sec
Radeon RX 550 17600 Mpixels/sec
Difference: 145600 (827%)

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 RX 550

Amazon.com

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Radeon RX 6800

Amazon.com

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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 RX 550 Radeon RX 6800
Manufacturer AMD AMD
Year April 2017 November 2020
Code Name Polaris 12 Navi 21
Memory 2048 MB 16384 MB
Core Speed 1100 MHz 1700 MHz
Memory Speed 7000 MHz 4000 GB/s
Power (Max TDP) 50 watts 250 watts
Bandwidth 114688 MB/sec 524288 MB/sec
Texel Rate 35200 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 512 3840
Texture Mapping Units 32 240
Render Output Units 16 96
Bus Type GDDR5 GDDR6
Bus Width 128-bit 256-bit
Fab Process 14 nm 7 nm
Transistors 2200 million 26800 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the card's bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

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Radeon RX 550

Amazon.com

Check prices at:

Radeon RX 6800

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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