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Radeon RX 5500 vs Radeon RX 6800

Intro

The Radeon RX 5500 uses a 7 nm design. AMD has clocked the core speed at 1670 MHz. The GDDR6 memory is set to run at a speed of 1750 MHz on this particular card. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

Compare those specifications to the Radeon RX 6800, which features GPU core speed of 1700 MHz, and 16384 MB of GDDR6 memory set to run at 2000 MHz through a 256-bit bus. It also is made up of 3840 SPUs, 240 Texture Address Units, and 96 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 150 Watts
Radeon RX 6800 250 Watts
Difference: 100 Watts (67%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 should theoretically be quite a bit superior to the Radeon RX 5500 in general. (explain)

Radeon RX 6800 524288 MB/sec
Radeon RX 5500 229376 MB/sec
Difference: 294912 (129%)

Texel Rate

The Radeon RX 6800 is much (approximately 178%) more effective at AF than the Radeon RX 5500. (explain)

Radeon RX 6800 408000 Mtexels/sec
Radeon RX 5500 146960 Mtexels/sec
Difference: 261040 (178%)

Pixel Rate

The Radeon RX 6800 should be quite a bit (approximately 205%) faster with regards to FSAA than the Radeon RX 5500, and will be able to handle higher screen resolutions better. (explain)

Radeon RX 6800 163200 Mpixels/sec
Radeon RX 5500 53440 Mpixels/sec
Difference: 109760 (205%)

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 5500

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 5500 Radeon RX 6800
Manufacturer AMD AMD
Year October 2019 November 2020
Code Name Navi 14 XT Navi 21
Memory 4096 MB 16384 MB
Core Speed 1670 MHz 1700 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 150 watts 250 watts
Bandwidth 229376 MB/sec 524288 MB/sec
Texel Rate 146960 Mtexels/sec 408000 Mtexels/sec
Pixel Rate 53440 Mpixels/sec 163200 Mpixels/sec
Unified Shaders 1408 3840
Texture Mapping Units 88 240
Render Output Units 32 96
Bus Type GDDR6 GDDR6
Bus Width 128-bit 256-bit
Fab Process 7 nm 7 nm
Transistors 6400 million 26800 million
Bus PCIe 4.0 ×16 PCIe 4.0 x16
DirectX Version DirectX 12 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.

Display Prices

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Radeon RX 5500

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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