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Radeon RX 5500 XT vs Radeon RX 6600

Intro

The Radeon RX 5500 XT comes with a core clock speed of 1717 MHz and a GDDR6 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 7 nm design. It is made up of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Compare those specs to the Radeon RX 6600, which comes with a GPU core clock speed of 1626 MHz, and 8192 MB of GDDR6 RAM running at 1750 MHz through a 128-bit bus. It also is made up of 1792 SPUs, 112 TAUs, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 XT 130 Watts
Radeon RX 6600 132 Watts
Difference: 2 Watts (2%)

Memory Bandwidth

Both cards have exactly the same bandwidth, so in theory they should have the same performance. (explain)

Texel Rate

The Radeon RX 6600 will be a lot (more or less 21%) faster with regards to texture filtering than the Radeon RX 5500 XT. (explain)

Radeon RX 6600 182112 Mtexels/sec
Radeon RX 5500 XT 151096 Mtexels/sec
Difference: 31016 (21%)

Pixel Rate

The Radeon RX 6600 will be a lot (approximately 89%) more effective at full screen anti-aliasing than the Radeon RX 5500 XT, and should be able to handle higher resolutions better. (explain)

Radeon RX 6600 104064 Mpixels/sec
Radeon RX 5500 XT 54944 Mpixels/sec
Difference: 49120 (89%)

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 XT

Amazon.com

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Radeon RX 6600

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 XT Radeon RX 6600
Manufacturer AMD AMD
Year December 2019 October 2021
Code Name Navi 14 XTX Navi 23
Memory 8192 MB 8192 MB
Core Speed 1717 MHz 1626 MHz
Memory Speed 1750 GB/s 1750 GB/s
Power (Max TDP) 130 watts 132 watts
Bandwidth 229376 MB/sec 229376 MB/sec
Texel Rate 151096 Mtexels/sec 182112 Mtexels/sec
Pixel Rate 54944 Mpixels/sec 104064 Mpixels/sec
Unified Shaders 1408 1792
Texture Mapping Units 88 112
Render Output Units 32 64
Bus Type GDDR6 GDDR6
Bus Width 128-bit 128-bit
Fab Process 7 nm 7 nm
Transistors 6400 million 11060 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 information (in units of MB per second) that can be transported across the external memory interface in one second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied 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 higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.

Display Prices

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Radeon RX 5500 XT

Amazon.com

Check prices at:

Radeon RX 6600

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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