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GeForce GTX 1080 vs Radeon RX 6650 XT

Intro

The GeForce GTX 1080 makes use of a 16 nm design. nVidia has clocked the core frequency at 1607 MHz. The GDDR5X RAM runs at a frequency of 1251 MHz on this specific card. It features 2560 SPUs along with 160 Texture Address Units and 64 ROPs.

Compare that to the Radeon RX 6650 XT, which has GPU clock 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 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6650 XT 176 Watts
GeForce GTX 1080 180 Watts
Difference: 4 Watts (2%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1080 should perform just a bit faster than the Radeon RX 6650 XT in general. (explain)

GeForce GTX 1080 327680 MB/sec
Radeon RX 6650 XT 287072 MB/sec
Difference: 40608 (14%)

Texel Rate

The Radeon RX 6650 XT will be a small bit (approximately 2%) faster with regards to AF than the GeForce GTX 1080. (explain)

Radeon RX 6650 XT 263040 Mtexels/sec
GeForce GTX 1080 257120 Mtexels/sec
Difference: 5920 (2%)

Pixel Rate

The Radeon RX 6650 XT is much (more or less 28%) faster with regards to anti-aliasing than the GeForce GTX 1080, and should be able to handle higher resolutions better. (explain)

Radeon RX 6650 XT 131520 Mpixels/sec
GeForce GTX 1080 102848 Mpixels/sec
Difference: 28672 (28%)

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 1080

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 1080 Radeon RX 6650 XT
Manufacturer nVidia AMD
Year May 2016 May 2022
Code Name GP104-400 Navi 23
Memory 8192 MB 8192 MB
Core Speed 1607 MHz 2055 MHz
Memory Speed 10008 MHz 4380 GB/s
Power (Max TDP) 180 watts 176 watts
Bandwidth 327680 MB/sec 287072 MB/sec
Texel Rate 257120 Mtexels/sec 263040 Mtexels/sec
Pixel Rate 102848 Mpixels/sec 131520 Mpixels/sec
Unified Shaders 2560 2048
Texture Mapping Units 160 128
Render Output Units 64 64
Bus Type GDDR5X GDDR6
Bus Width 256-bit 128-bit
Fab Process 16 nm 7 nm
Transistors 7200 million 11060 million
Bus PCIe 3.0 x16 PCIe 4.0 x16
DirectX Version DirectX 12.0 DirectX 12
OpenGL Version OpenGL 4.5 OpenGL 4.6

Memory Bandwidth: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus 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 bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.

Display Prices

Hide Prices

GeForce GTX 1080

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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