In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 920M 2GB are significantly better than the Intel HD Graphics 510 Mobile.

The GeForce 920M 2GB has a 275 MHz higher core clock speed and 16 more Texture Mapping Units than the Graphics 510. This results in the GeForce 920M 2GB providing 13.6 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 GeForce 920M 2GB has a 275 MHz higher core clock speed than the Graphics 510 and the same number of Render Output Units. This results in the GeForce 920M 2GB providing 2.2 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 Graphics 510 was released less than a year after the GeForce 920M 2GB, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce 920M 2GB has 2048 MB video memory, but the Graphics 510 does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD Graphics 510 Mobile has 12 Shader Processing Units and the GeForce 920M 2GB has 384. However, the actual shader performance of the Graphics 510 is 91 and the actual shader performance of the GeForce 920M 2GB is 366. The GeForce 920M 2GB having 275 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 920M 2GB delivers a marginally smoother and more efficient experience when processing graphical data than the Graphics 510.

The Graphics 510 transistor size technology is 14 nm (nanometers) smaller than the GeForce 920M 2GB. This means that the Graphics 510 is expected to run slightly cooler and achieve higher clock frequencies than the GeForce 920M 2GB.

The HD Graphics 510 Mobile requires 15 Watts to run and the GeForce 920M 2GB requires 25 Watts. The GeForce 920M 2GB requires 10 Watts more than the Graphics 510 to run. The difference is not significant enough for the GeForce 920M 2GB to have a noticeably larger impact on your yearly electricity bills than the Graphics 510.