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GeForce GTX 1660 Ti vs Radeon RX 6650 XT

Intro

The GeForce GTX 1660 Ti features core speeds of 1500 MHz on the GPU, and 1500 MHz on the 6144 MB of GDDR6 memory. It features 1536 SPUs along with 96 Texture Address Units and 48 ROPs.

Compare all that to the Radeon RX 6650 XT, which comes with GPU core speed of 2055 MHz, and 8192 MB of GDDR6 RAM set to run at 2190 MHz through a 128-bit bus. It also is made up of 2048 SPUs, 128 TAUs, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1660 Ti 120 Watts
Radeon RX 6650 XT 176 Watts
Difference: 56 Watts (47%)

Memory Bandwidth

In theory, the GeForce GTX 1660 Ti should perform a little bit faster than the Radeon RX 6650 XT in general. (explain)

GeForce GTX 1660 Ti 294912 MB/sec
Radeon RX 6650 XT 287072 MB/sec
Difference: 7840 (3%)

Texel Rate

The Radeon RX 6650 XT should be much (more or less 83%) better at texture filtering than the GeForce GTX 1660 Ti. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
GeForce GTX 1660 Ti 144000 Mtexels/sec
Difference: 119040 (83%)

Pixel Rate

If using high levels of AA is important to you, then the Radeon RX 6650 XT is the winner, by far. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
GeForce GTX 1660 Ti 72000 Mpixels/sec
Difference: 59520 (83%)

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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GeForce GTX 1660 Ti

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.

Specifications

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Model GeForce GTX 1660 Ti Radeon RX 6650 XT
Manufacturer nVidia AMD
Year February 2019 May 2022
Code Name TU116-400-A1 Navi 23
Memory 6144 MB 8192 MB
Core Speed 1500 MHz 2055 MHz
Memory Speed 1500 GB/s 2190 GB/s
Power (Max TDP) 120 watts 176 watts
Bandwidth 294912 MB/sec 287072 MB/sec
Texel Rate 144000 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 72000 Mpixels/sec 131520 Mpixels/sec
Unified Shaders 1536 2048
Texture Mapping Units 96 128
Render Output Units 48 64
Bus Type GDDR6 GDDR6
Bus Width 192-bit 128-bit
Fab Process 12 nm 7 nm
Transistors 6600 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.6 OpenGL 4.6

Memory Bandwidth: Bandwidth is the largest amount of data (in units of MB per second) that can be transferred past the external memory interface in a second. The number is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.

Display Prices

Hide Prices

GeForce GTX 1660 Ti

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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