Intel HD Graphics 4400 vs Intel HD Graphics 405 (Braswell) vs Intel HD Graphics 4600

Intel HD Graphics 4400

The Intel HD Graphics 4400 (GT2) is a processor graphics card included in some of the ULV Haswell processors of 2013. The relatively low base clock can be automatically overclocked using Turbo Boost technology. Depending on the processor model, the turbo clock rates may differ, resulting in varying graphics performance between models.

In comparison to the HD 4000, the HD 4400 graphics core has been modified extensively. The GPU now supports DirectX 11.1, OpenCL 1.2 and OpenGL 4.0. It also features an improved decoder for 4K videos and the fast Quick Sync encoder. Compared to the faster 4600, the 4400 offers the same amount of shaders, but lower clock speeds (see table of clock speeds of the different CPU models below).

The performance of the HD Graphics 4400 is somewhat below the HD 4600, since the GPU is designed for ULV models. Therefore, the clock rates are relatively low. Furthermore, the reduced TDP limits the Turbo Boost. Compared to the ULV versions of the Ivy Bridge HD 4000, the HD 4400 is about 20 - 30 percent faster. This performance boost is achieved by architectural improvements and an increased number of execution units: The GT2 version integrates 20 EUs, compared to 16 EUs for the old HD 4000. Depending on the clock rate, the HD 4400 matches the performance of a dedicated Radeon HD 7550M.

Due to the 22nm 3D Tri-Gate production process, the power consumption is relatively low. The HD Graphics 4400 can be found on ULV dual-core Haswell models with a TDP of 15 watts.

Intel HD Graphics 405 (Braswell)

The Intel HD Graphics 405 (Braswell)  is an integrated graphics card in the low end SoCs of the Braswell series (e.g. Pentium N3710). It is based on the same architecture as the integrated GPU of the Broadwell graphics cards (e.g. HD Graphics 5300), but offers less shader cores and slower clock speeds.

The GPU was simply called Intel HD Graphics (Broadwell) before 2016 and included also the slower 12 EUs version in the Celeron model. The Graphics 405 name currently only stands for 16-core-versions in Pentium models. The 12 EU version is now called Intel HD Graphics 400.

The clock speed and memory configuration can still vary from model to model.

Gaming performance ist still only suited for older or less demanding games. Often also the processor is limited gaming performance (e.g. in the dual-core N3000).

The SoC also integrates a video decoding engine that should be able to handle 4K H.265 videos.

Intel HD Graphics 4600

The Intel HD Graphics 4600 (GT2) is a processor graphics card included in some of the Haswell processors of 2013. The base clock can be automatically overclocked using Turbo Boost technology.
Depending on the processor model, the base and turbo clock rates may differ greatly resulting in varying graphics performance between CPU models.

In comparison to the HD 4000, the graphics core has been modified extensively. The GPU supports DirectX 11.1, OpenCL 1.2 and OpenGL 4.0. It also features an improved decoder for 4K videos and the fast Quick Sync encoder.

According to Intel benchmarks in 3DMark 11, the HD Graphics 4600 will be up to 60 percent faster than the previous HD 4000. In our gaming benchmarks, however, the improvement was only about 30 percent. This performance boost is achieved by architectural improvements and an increased number of execution units: The GT2 version integrates 20 EUs, compared to 16 EUs for the old HD 4000. Thus, the HD 4600 not only matches some dedicated GPUs such as the GeForce GT 620M/630M, but also competes with the fastest integrated AMD GPUs like the Radeon HD 8650G.

Due to the 22nm 3D Tri-Gate production process, power consumption should be relatively low. The HD Graphics 4600 can be found on dual- and quad-core Haswell models in the 37 - 57 Watt TDP range.