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Radeon RX 5500 vs Radeon RX 6800 XT

Intro

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

Compare all that to the Radeon RX 6800 XT, which comes with a clock speed of 1825 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 256-bit bus, and uses a 7 nm design. It features 4608 SPUs, 288 TAUs, and 128 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 150 Watts
Radeon RX 6800 XT 300 Watts
Difference: 150 Watts (100%)

Memory Bandwidth

Performance-wise, the Radeon RX 6800 XT should theoretically be much better than the Radeon RX 5500 in general. (explain)

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

Texel Rate

The Radeon RX 6800 XT should be much (approximately 258%) better at AF than the Radeon RX 5500. (explain)

Radeon RX 6800 XT 525600 Mtexels/sec
Radeon RX 5500 146960 Mtexels/sec
Difference: 378640 (258%)

Pixel Rate

The Radeon RX 6800 XT should be quite a bit (more or less 337%) faster with regards to AA than the Radeon RX 5500, and also should be capable of handling higher screen resolutions better. (explain)

Radeon RX 6800 XT 233600 Mpixels/sec
Radeon RX 5500 53440 Mpixels/sec
Difference: 180160 (337%)

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 XT

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 XT
Manufacturer AMD AMD
Year October 2019 November 2020
Code Name Navi 14 XT Navi 21
Memory 4096 MB 16384 MB
Core Speed 1670 MHz 1825 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 150 watts 300 watts
Bandwidth 229376 MB/sec 524288 MB/sec
Texel Rate 146960 Mtexels/sec 525600 Mtexels/sec
Pixel Rate 53440 Mpixels/sec 233600 Mpixels/sec
Unified Shaders 1408 4608
Texture Mapping Units 88 288
Render Output Units 32 128
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 maximum amount of information (measured in MB per second) that can be transferred past the external memory interface within a second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster 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 worked out by multiplying the total texture units of the card by the core clock speed of the chip. The better this number, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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Radeon RX 5500

Amazon.com

Check prices at:

Radeon RX 6800 XT

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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