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Radeon RX 6600 vs Radeon RX 6600 XT

Intro

The Radeon RX 6600 features a GPU clock speed of 1626 MHz, and the 8192 MB of GDDR6 RAM is set to run at 1750 MHz through a 128-bit bus. It also is comprised of 1792 SPUs, 112 Texture Address Units, and 64 ROPs.

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

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 132 Watts
Radeon RX 6600 XT 160 Watts
Difference: 28 Watts (21%)

Memory Bandwidth

In theory, the Radeon RX 6600 XT should perform just a bit faster than the Radeon RX 6600 overall. (explain)

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

Texel Rate

The Radeon RX 6600 XT should be quite a bit (about 38%) better at texture filtering than the Radeon RX 6600. (explain)

Radeon RX 6600 XT 251904 Mtexels/sec
Radeon RX 6600 182112 Mtexels/sec
Difference: 69792 (38%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon RX 6600 XT is superior to the Radeon RX 6600, by far. (explain)

Radeon RX 6600 XT 125952 Mpixels/sec
Radeon RX 6600 104064 Mpixels/sec
Difference: 21888 (21%)

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 6600

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 6600 Radeon RX 6600 XT
Manufacturer AMD AMD
Year October 2021 August 2021
Code Name Navi 23 Navi 23 XT
Memory 8192 MB 8192 MB
Core Speed 1626 MHz 1968 MHz
Memory Speed 1750 GB/s 2000 GB/s
Power (Max TDP) 132 watts 160 watts
Bandwidth 229376 MB/sec 262144 MB/sec
Texel Rate 182112 Mtexels/sec 251904 Mtexels/sec
Pixel Rate 104064 Mpixels/sec 125952 Mpixels/sec
Unified Shaders 1792 2048
Texture Mapping Units 112 128
Render Output Units 64 64
Bus Type GDDR6 GDDR6
Bus Width 128-bit 128-bit
Fab Process 7 nm 7 nm
Transistors 11060 million 11060 million
Bus PCIe 4.0 x16 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 information (counted in megabytes per second) that can be moved past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, the better the video 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 most pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 6600

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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