In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 1080 Ti are noticeably better than the Nvidia GeForce RTX 2060 6GB.

The GTX 1080 Ti has a 115 MHz higher core clock speed and 104 more Texture Mapping Units than the RTX 2060. This results in the GTX 1080 Ti providing 167.7 GTexel/s better texturing performance. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GTX 1080 Ti has a 115 MHz higher core clock speed and 40 more Render Output Units than the RTX 2060. This results in the GTX 1080 Ti providing 64.7 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The RTX 2060 was released over a year more recently than the GTX 1080 Ti, and so the RTX 2060 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GTX 1080 Ti.

Both GPUs exhibit very powerful performance, so it probably isn't worth upgrading from one to the other, as both are capable of running even the most demanding games at the highest settings.

The GTX 1080 Ti has 5120 MB more video memory than the RTX 2060, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the GTX 1080 Ti also has superior memory performance overall.

The GTX 1080 Ti has 148.4 GB/sec greater memory bandwidth than the RTX 2060, which means that the memory performance of the GTX 1080 Ti is massively better than the RTX 2060.

The GeForce RTX 2060 6GB has 1920 Shader Processing Units and the GeForce GTX 1080 Ti has 3584. However, the actual shader performance of the RTX 2060 is 3226 and the actual shader performance of the GTX 1080 Ti is 7654. The GTX 1080 Ti having 4428 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 1080 Ti delivers a massively smoother and more efficient experience when processing graphical data than the RTX 2060.

The RTX 2060 transistor size technology is 4 nm (nanometers) smaller than the GTX 1080 Ti. This means that the RTX 2060 is expected to run very slightly cooler and achieve higher clock frequencies than the GTX 1080 Ti.

The GeForce RTX 2060 6GB requires 160 Watts to run and the GeForce GTX 1080 Ti requires 220 Watts. We would recommend a PSU with at least 450 Watts for the RTX 2060 and a PSU with at least 600 Watts for the GTX 1080 Ti. The GTX 1080 Ti requires 60 Watts more than the RTX 2060 to run. The difference is significant enough that the GTX 1080 Ti may have an adverse affect on your yearly electricity bills in comparison to the RTX 2060.