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Radeon RX 5500 vs Radeon RX 6600 XT

Intro

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

Compare all of that to the Radeon RX 6600 XT, which makes use of a 7 nm design. AMD has set the core speed at 1968 MHz. The GDDR6 memory works at a speed of 2000 MHz on this card. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

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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

As far as performance goes, the Radeon RX 6600 XT should in theory be a little bit better than the Radeon RX 5500 overall. (explain)

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

Texel Rate

The Radeon RX 6600 XT is a lot (about 71%) better at anisotropic filtering 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 quite a bit (approximately 136%) better at FSAA than the Radeon RX 5500, and should be capable of handling higher resolutions without slowing down too much. (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: Bandwidth is the max amount of information (counted in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the interface width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, 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 can be applied per second. This figure is worked out by multiplying the total number of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video 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 maximum number of pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of 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

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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