In terms of overall gaming performance, the graphical capabilities of the Intel HD Graphics 510 Desktop are marginally better than the Intel HD i5 6402P.

The HD i5 6402P and the Graphics 510 have both the same core clock speed and the same Texture Fill Rate. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The HD i5 6402P and the Graphics 510 have both the same core clock speed and the same Pixel Fill Rate. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The HD i5 6402P was released less than a year after the Graphics 510, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The HD i5 6402P and the HD Graphics 510 Desktop 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 HD i5 6402P and the HD Graphics 510 Desktop are the same, which means the HD i5 6402P and the Graphics 510 have equal limitations when it comes to graphical data transfer.

Both the HD i5 6402P and the HD Graphics 510 Desktop have 12 Shader Processing Units. Having the same number of SPUs and using the same architecture means that the performance they offer can be compared by looking at the memory bandwidth, Texture and Pixel Rates. In this case, the two GPUs have extremely similar stats, so any gaming performance difference would most likely be negligible.

The HD i5 6402P requires 65 Watts to run and the HD Graphics 510 Desktop requires 47 Watts. We would recommend a PSU with at least 300 Watts for the HD i5 6402P and a PSU with at least 300 Watts for the Graphics 510. The HD i5 6402P requires 18 Watts more than the Graphics 510 to run. The difference is not significant enough for the HD i5 6402P to have a noticeably larger impact on your yearly electricity bills than the Graphics 510.