In terms of overall gaming performance, the graphical capabilities of the Intel HD Graphics 4600 Desktop are significantly better than the Intel HD Graphics P4000.

The HD Graphics P4000 has a 250 MHz higher core clock speed and the same number of Texture Mapping Units as the Graphics 4600. This results in the HD Graphics P4000 providing 1 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 HD Graphics P4000 has a 250 MHz higher core clock speed than the Graphics 4600 and the same number of Render Output Units. This results in the HD Graphics P4000 providing 0.5 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 4600 was released over a year more recently than the HD Graphics P4000, and so the Graphics 4600 is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the HD Graphics P4000.

The HD Graphics P4000 and the HD Graphics 4600 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 Graphics P4000 and the HD Graphics 4600 Desktop are the same, which means the HD Graphics P4000 and the Graphics 4600 have equal limitations when it comes to graphical data transfer.

The HD Graphics P4000 has 64 Shader Processing Units and the HD Graphics 4600 Desktop has 20. However, the actual shader performance of the HD Graphics P4000 is 204 and the actual shader performance of the Graphics 4600 is 100. The HD Graphics P4000 having 104 better shader performance is not particularly notable, as altogether the Graphics 4600 performs better when taking into account other relevant data.

The HD Graphics 4600 Desktop requires 88 Watts to run but there is no entry for the HD Graphics P4000. We would recommend a PSU with at least 300 Watts for the Graphics 4600, but we do not have a recommended PSU wattage for the HD Graphics P4000.