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Radeon RX 5500 XT vs Radeon RX 6600 XT

Intro

The Radeon RX 5500 XT has a GPU clock speed of 1717 MHz, and the 8192 MB of GDDR6 RAM runs at 1750 MHz through a 128-bit bus. It also is comprised of 1408 Stream Processors, 88 TAUs, and 32 Raster Operation Units.

Compare all that to the Radeon RX 6600 XT, which uses a 7 nm design. AMD has clocked the core frequency at 1968 MHz. The GDDR6 memory is set to run at a speed of 2000 MHz on this specific model. It features 2048 SPUs as well as 128 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 XT 160 Watts
Difference: 30 Watts (23%)

Memory Bandwidth

In theory, the Radeon RX 6600 XT will be 14% faster than the Radeon RX 5500 XT overall, because of its higher bandwidth. (explain)

Radeon RX 6600 XT 262144 MB/sec
Radeon RX 5500 XT 229376 MB/sec
Difference: 32768 (14%)

Texel Rate

The Radeon RX 6600 XT is quite a bit (approximately 67%) more effective at texture filtering than the Radeon RX 5500 XT. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon RX 5500 XT 151096 Mtexels/sec
Difference: 100808 (67%)

Pixel Rate

The Radeon RX 6600 XT will be a lot (more or less 129%) better at AA than the Radeon RX 5500 XT, and also able to handle higher screen resolutions without slowing down too much. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon RX 5500 XT 54944 Mpixels/sec
Difference: 71008 (129%)

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 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 XT Radeon RX 6600 XT
Manufacturer AMD AMD
Year December 2019 August 2021
Code Name Navi 14 XTX Navi 23 XT
Memory 8192 MB 8192 MB
Core Speed 1717 MHz 1968 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 130 watts 160 watts
Bandwidth 229376 MB/sec 262144 MB/sec
Texel Rate 151096 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 54944 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 1408 2048
Texture Mapping Units 88 128
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 (measured in MB per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR RAM, it must 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 anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, most notably 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 XT

Amazon.com

Check prices at:

Radeon RX 6600 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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