The dramatic evolution of successive Intel graphics highlights from the GPU details of the 6th generation Intel Core processor "Skylake"

It is held in San Francisco, USA from August 18, 2015Intel Developer Forum 2015 (IDF 2015), Intel is the sixth generation Intel Core processor "Skylake"We gave a detailed technical explanation on the architecture and revealed the true value of Skylake's built-in graphics. From there, we can confirm the fact that the CPU, which is said to have "the pace of performance improvement in recent years has slowed down," has steadily and significantly evolved graphic performance.

Skylake's graphics architecture: Intel is still gunning for dedicated GPUs | Ars Technica
http://arstechnica.com/gadgets/2015/08/skylakes-graphics-architecture-intel-is-still-gunning-for-dedicated-gpus/

The Intel Core processor is the second generation "Sandy Bridge, "Third generation"Ivy Bridge", The fourth generation"Haswell", The fifth generation"BroadwellWhile evolving, we have greatly improved the performance of embedded graphics (iGPU) beyond CPU performance.

The figure below shows the iGPU functional part in the CPU core (die) from Sandy Bridge generation to Broadwell generation in red frame. As you go through generations you can see that the proportion of iGPU cores in the die is getting bigger.


And this is the latest Skylake generation die. The iGPU core on the left of the photo has occupied a larger area than the four CPU cores.


As of the 1st generation Intel Core processor "Iron Lake" 43GFLOPSGPU performance with built-in graphics increased by about 27 times to 1152 GFLOPS in Skylake. Compared to CPU, the evolution of GPU is overwhelmingly large, and you can see that Intel has continued to enhance built-in graphics.


Skylake's iGPU has eightExecution unit (EU)It consists of basic units called "slices" consisting of three "sub-slices" EU groups. Intel HD Graphics 530 adopted in Core i7-6700K and Core i5-6600K sold soon as the Skylake-S series is called "GT 2" and has a single slice with a total of 8 × 3 = 24 EUs I have it.


In Skylake generation CPU, there are two more slices and 48 EU number "GT 3" ... ...


It will be expanded to "GT 4" with 3 slices and 72 EUs. Four types of graphic systems are expected to be taken, from entry level GT 1, middle range GT 2, high-performance graphic brand "Iris" GT 3, top model "Iris Pro" GT 4.


In SkylakeDirectX 12Formally respond to.


Hardware encoder function "Quick Sync Video (QSV)"Has further evolved to support new codecs such as MJPEG and HEVC (8 bit). The high speed DDR4 memory greatly improves the encoding speed.


Skylake also supports three independent video outputs. 4K (up to 4096 × 2304 · 4096 × 2160, 60 Hz) with DisplayPort or HDMI 2.0, wireless display transmissionMiracastEven 4K (3840 × 2160, 30 Hz) can be output.


·bonus
Intel did not announce the top model "Skylake-H" of the series for notebook PCs and the series "Skylake-Y" for the tablet that will appear in the keynote lecture of IDF 2015 in the future. However, the lineup of the Skylake-H series is leaking.

Intel Skylake - H Workstation and Mobility Lineup Unveiled - Flagship Core i7 - 6820 EQ and Xeon E 3 - 1500 M With GT 4 e iGPU
http://wccftech.com/intel-skylake-h-workstation-mobility-lineup-unveiled-flagship-core-i76820eq-xeon-e31500m-gt4e-igpu/

If this leak information is correct, in Skylake-H for notebook PC, Core i 5 is changed from conventional dual core to quad core, Core i 3Hyper ThreadingCorrespond to. High-end laptop PCs will also be released with models with "Xeon E15XX M" with high-performance graphics function that is equipped with 128 MB eDRAM and three slices "GT 4 e".