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Radeon RX 550 vs Radeon RX 6600 XT

Intro

The Radeon RX 550 comes with a GPU clock speed of 1100 MHz, and the 2048 MB of GDDR5 memory runs at 1750 MHz through a 128-bit bus. It also is made up of 512 Stream Processors, 32 Texture Address Units, and 16 ROPs.

Compare those specifications to the Radeon RX 6600 XT, which makes use of a 7 nm design. AMD has clocked the core frequency at 1968 MHz. The GDDR6 RAM works at a frequency of 2000 MHz on this particular card. It features 2048 SPUs as well as 128 Texture Address Units and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 550 50 Watts
Radeon RX 6600 XT 160 Watts
Difference: 110 Watts (220%)

Memory Bandwidth

In theory, the Radeon RX 6600 XT is 129% faster than the Radeon RX 550 overall, because of its greater data rate. (explain)

Radeon RX 6600 XT 262144 MB/sec
Radeon RX 550 114688 MB/sec
Difference: 147456 (129%)

Texel Rate

The Radeon RX 6600 XT is much (approximately 616%) better at AF than the Radeon RX 550. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon RX 550 35200 Mtexels/sec
Difference: 216704 (616%)

Pixel Rate

The Radeon RX 6600 XT should be quite a bit (approximately 616%) more effective at FSAA than the Radeon RX 550, and also should be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon RX 550 17600 Mpixels/sec
Difference: 108352 (616%)

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 550

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 550 Radeon RX 6600 XT
Manufacturer AMD AMD
Year April 2017 August 2021
Code Name Polaris 12 Navi 23 XT
Memory 2048 MB 8192 MB
Core Speed 1100 MHz 1968 MHz
Memory Speed 7000 MHz 4000 GB/s
Power (Max TDP) 50 watts 160 watts
Bandwidth 114688 MB/sec 262144 MB/sec
Texel Rate 35200 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 17600 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 512 2048
Texture Mapping Units 32 128
Render Output Units 16 64
Bus Type GDDR5 GDDR6
Bus Width 128-bit 128-bit
Fab Process 14 nm 7 nm
Transistors 2200 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Memory bandwidth is the maximum amount of information (counted in megabytes per second) that can be transported across the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high 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 amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units 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 also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.

Display Prices

Hide Prices

Radeon RX 550

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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