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Radeon RX 6600 XT vs Radeon RX 6650 XT

Intro

The Radeon RX 6600 XT makes use of a 7 nm design. AMD has clocked the core frequency at 1968 MHz. The GDDR6 memory is set to run at a speed of 2000 MHz on this specific card. It features 2048 SPUs along with 128 Texture Address Units and 64 Rasterization Operator Units.

Compare all that to the Radeon RX 6650 XT, which has GPU core speed of 2055 MHz, and 8192 MB of GDDR6 RAM running at 2190 MHz through a 128-bit bus. It also is comprised of 2048 Stream Processors, 128 TAUs, and 64 ROPs.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6600 XT 160 Watts
Radeon RX 6650 XT 176 Watts
Difference: 16 Watts (10%)

Memory Bandwidth

As far as performance goes, the Radeon RX 6650 XT should theoretically be just a bit better than the Radeon RX 6600 XT in general. (explain)

Radeon RX 6650 XT 287072 MB/sec
Radeon RX 6600 XT 262144 MB/sec
Difference: 24928 (10%)

Texel Rate

The Radeon RX 6650 XT will be just a bit (more or less 4%) faster with regards to AF than the Radeon RX 6600 XT. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
Radeon RX 6600 XT 251904 Mtexels/sec
Difference: 11136 (4%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 6650 XT is superior to the Radeon RX 6600 XT, though not by far. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
Radeon RX 6600 XT 125952 Mpixels/sec
Difference: 5568 (4%)

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 XT

Amazon.com

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Radeon RX 6650 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 XT Radeon RX 6650 XT
Manufacturer AMD AMD
Year August 2021 May 2022
Code Name Navi 23 XT Navi 23
Memory 8192 MB 8192 MB
Core Speed 1968 MHz 2055 MHz
Memory Speed 2000 GB/s 2190 GB/s
Power (Max TDP) 160 watts 176 watts
Bandwidth 262144 MB/sec 287072 MB/sec
Texel Rate 251904 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 125952 Mpixels/sec 131520 Mpixels/sec
Unified Shaders 2048 2048
Texture Mapping Units 128 128
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 max amount of information (in units of MB per second) that can be moved past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, 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 number of texture map elements (texels) that can be processed in one 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 processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels 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 amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon RX 6600 XT

Amazon.com

Check prices at:

Radeon RX 6650 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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