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GeForce GTX 1080 vs Radeon RX 6650 XT

Intro

The GeForce GTX 1080 features core speeds of 1607 MHz on the GPU, and 1251 MHz on the 8192 MB of GDDR5X RAM. It features 2560 SPUs as well as 160 Texture Address Units and 64 ROPs.

Compare those specs to the Radeon RX 6650 XT, which makes use of a 7 nm design. AMD has set the core speed at 2055 MHz. The GDDR6 memory works at a speed of 2190 MHz on this particular 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 6650 XT 176 Watts
GeForce GTX 1080 180 Watts
Difference: 4 Watts (2%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 1080 is 14% faster than the Radeon RX 6650 XT overall, because of its greater data rate. (explain)

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

Texel Rate

The Radeon RX 6650 XT should be a bit (more or less 2%) more effective at 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 should be quite a bit (about 28%) better at anti-aliasing than the GeForce GTX 1080, and also will be capable of handling higher screen 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 max amount of data (counted in MB per second) that can be transported past the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at 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 could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential 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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