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Radeon RX 6600 vs Radeon RX 6600 XT

Intro

The Radeon RX 6600 uses a 7 nm design. AMD has clocked the core speed at 1626 MHz. The GDDR6 memory works at a speed of 1750 MHz on this card. It features 1792 SPUs along with 112 Texture Address Units and 64 ROPs.

Compare all that 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 memory runs at a speed of 2000 MHz on this model. It features 2048 SPUs as well as 128 TAUs and 64 Rasterization Operator Units.

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

The Radeon RX 6600 XT should theoretically be just a bit faster than the Radeon RX 6600 in general. (explain)

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

Texel Rate

The Radeon RX 6600 XT is quite a bit (about 38%) better at anisotropic 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

The Radeon RX 6600 XT is quite a bit (approximately 21%) more effective at full screen anti-aliasing than the Radeon RX 6600, and will be capable of handling higher screen resolutions without slowing down too much. (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 maximum amount of information (in units of MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 per second. This figure is worked out by multiplying the total number of texture units by the core clock speed of the chip. The better this number, the better the graphics 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 most pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.

Display Prices

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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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