In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce RTX 2080 are marginally better than the Nvidia GeForce RTX 2070 Super 8GB.

The RTX 2070 has a 90 MHz higher core clock speed than the GeForce RTX 2080, but the GeForce RTX 2080 has 24 more Texture Mapping Units than the RTX 2070. As a result, the GeForce RTX 2080 exhibits a 22 GTexel/s better Texture Fill Rate than the RTX 2070. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The RTX 2070 has a 90 MHz higher core clock speed than the GeForce RTX 2080 and the same number of Render Output Units. This results in the RTX 2070 providing 5.7 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 2070 was released less than a year after the GeForce RTX 2080, and so they are likely to have similar driver support for optimizing performance when running the latest games.

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 GeForce RTX 2070 Super 8GB and the GeForce RTX 2080 have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The memory bandwidth of the GeForce RTX 2070 Super 8GB and the GeForce RTX 2080 are the same, which means the RTX 2070 and the GeForce RTX 2080 have equal limitations when it comes to graphical data transfer.

The GeForce RTX 2070 Super 8GB has 2560 Shader Processing Units and the GeForce RTX 2080 has 2944. However, the actual shader performance of the RTX 2070 is 4531 and the actual shader performance of the GeForce RTX 2080 is 5299. The GeForce RTX 2080 having 768 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce RTX 2080 delivers a slightly smoother and more efficient experience when processing graphical data than the RTX 2070.

The GeForce RTX 2070 Super 8GB requires 175 Watts to run and the GeForce RTX 2080 requires 215 Watts. We would recommend a PSU with at least 500 Watts for the RTX 2070 and a PSU with at least 650 Watts for the GeForce RTX 2080. The GeForce RTX 2080 requires 40 Watts more than the RTX 2070 to run. The difference is significant enough that the GeForce RTX 2080 may have a slight adverse affect on your yearly electricity bills in comparison to the RTX 2070.