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GeForce GTX 1660 Ti vs Radeon RX 6650 XT

Intro

The GeForce GTX 1660 Ti comes with a clock speed of 1500 MHz and a GDDR6 memory speed of 1500 MHz. It also makes use of a 192-bit memory bus, and makes use of a 12 nm design. It features 1536 SPUs, 96 Texture Address Units, and 48 ROPs.

Compare all that to the Radeon RX 6650 XT, which features core clock speeds of 2055 MHz on the GPU, and 2190 MHz on the 8192 MB of GDDR6 RAM. It features 2048 SPUs along with 128 Texture Address Units and 64 ROPs.

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

Theoretically speaking, the GeForce GTX 1660 Ti should perform just a 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 will be much (approximately 83%) more effective 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

The Radeon RX 6650 XT will be much (approximately 83%) more effective at AA than the GeForce GTX 1660 Ti, and also capable of handling higher screen resolutions without losing too much performance. (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 (measured in megabytes per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen 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 speed of the chip. The higher 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 per second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max 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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