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Radeon RX 5500 vs Radeon RX 6600 XT

Intro

The Radeon RX 5500 comes with a core clock speed of 1670 MHz and a GDDR6 memory speed of 1750 MHz. It also features a 128-bit bus, and uses a 7 nm design. It is comprised of 1408 SPUs, 88 TAUs, and 32 ROPs.

Compare those specifications to the Radeon RX 6600 XT, which features a core clock speed of 1968 MHz and a GDDR6 memory speed of 2000 MHz. It also uses a 128-bit bus, and uses a 7 nm design. It is made up of 2048 SPUs, 128 Texture Address Units, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 5500 150 Watts
Radeon RX 6600 XT 160 Watts
Difference: 10 Watts (7%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 6600 XT will be 14% faster than the Radeon RX 5500 overall, because of its greater data rate. (explain)

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

Texel Rate

The Radeon RX 6600 XT will be quite a bit (approximately 71%) better at AF than the Radeon RX 5500. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon RX 5500 146960 Mtexels/sec
Difference: 104944 (71%)

Pixel Rate

The Radeon RX 6600 XT will be much (more or less 136%) better at AA than the Radeon RX 5500, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon RX 5500 53440 Mpixels/sec
Difference: 72512 (136%)

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 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 Radeon RX 6600 XT
Manufacturer AMD AMD
Year October 2019 August 2021
Code Name Navi 14 XT Navi 23 XT
Memory 4096 MB 8192 MB
Core Speed 1670 MHz 1968 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 150 watts 160 watts
Bandwidth 229376 MB/sec 262144 MB/sec
Texel Rate 146960 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 53440 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 largest amount of data (measured in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the card's interface width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

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Radeon RX 5500

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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