Intel Iris Plus Graphics 645 vs Intel UHD Graphics (Elkhart Lake 32 EU) vs Intel UHD Graphics (Elkhart Lake 16 EU)
Intel Iris Plus Graphics 645
► remove from comparisonThe Intel Iris Plus Graphics 645 (GT3e) is a processor graphics card that was first seen in the Apple MacBook Pro 13 (Entry, 2019) in mid 2019. It is similar to the Iris Plus Graphics 655 in the 28 Watt CPUs.
The so called GT3e version of the Coffee-Lake GPU still has 48 Execution Units (EUs), which can reach up to 1150 MHz depending on the model. Besides eDRAM cache, the Iris 645 can also access the system memory (2x 64 Bit DDR3L-2133/DDR4-2400) via processor interface.
Performance
The exact performance of the Iris Plus Graphics 645 depends on the CPU model, because maximum clock as well as the size of the L3 cache can differ a bit. The system memory (DDR3/DDR4) will influence the performance as well.
The fastest chips are high-clocked Core i7 models like the Core i7-8557U. Depending on the game, the Iris Plus 655 will probably be on par with a dedicated GeForce 930M or GeForce 940MX and can handle smooth gameplay in modern titles in low up to medium settings.
Features
The reworked video engine now fully supports hardware decoding of H.265/HEVC videos. Contrary to Skylake, however, Kaby Lake can now also decode H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The video output is possible via DP 1.2/eDP 1.3 (up to 3840 x 2160 @60 Hz), whereas HDMI is also supported in the older 1.4a standard. An HDMI 2.0 output can be added via converter from DisplayPort. The GPU can drive up to three displays simultaneously.
Power Consumption
The Iris Plus Graphics 645 is used for 15-Watt processor and therefore small-sized notebooks.
Intel UHD Graphics (Elkhart Lake 32 EU)
► remove from comparisonThe Intel UHD Graphics 32EUs Elkhart Lake (Gen. 11) is an integrated graphics card (iGPU) in the Elkhart Lake Pentium and Celeron SoCs (e.g., Pentium J6226). It was announced in early 2021 and is used in the high end Elkhart Lake CPUs. It uses all 32 execution units and offers no dedicated graphics memory. The clock speed depends on the CPU model and ranges from 4000 MHz (minimal base clock speed) up to 850 MHz (highest Boost clock).
The gaming performance is very low and only very low demanding 3D games should be playable. The slower 16 EU variant was even struggling in our Dota 2 benchmark.
Intel UHD Graphics (Elkhart Lake 16 EU)
► remove from comparisonThe Intel UHD Graphics 16EUs Elkhart Lake (Gen. 11) is an integrated graphics card (iGPU) in the Elkhart Lake Pentium and Celeron SoCs (e.g., Celeron N6211). It was announced in early 2021 and is used in the low end Elkhart Lake CPUs. It uses 16 of the 32 execution units and offers no dedicated graphics memory. The clock speed depends on the CPU model and ranges from 250 MHz (minimal base clock speed) up to 850 MHz (highest Boost clock).
The gaming performance is very low and even low demanding games like Dota 2 in our review were not fluently playable in minimal settings.
Intel Iris Plus Graphics 645 | Intel UHD Graphics (Elkhart Lake 32 EU) | Intel UHD Graphics (Elkhart Lake 16 EU) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Gen. 11 Series |
|
|
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Codename | Kaby Lake GT3e | Gen. 11 | Gen. 11 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Architecture | Gen. 9.5 Coffee Lake | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Pipelines | 48 - unified | 32 - unified | 16 - unified | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Core Speed | 300 - 1150 (Boost) MHz | 400 - 850 (Boost) MHz | 250 - 850 (Boost) MHz | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Memory Type | DDR3, DDR4 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Shared Memory | yes | yes | yes | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
API | DirectX 12_1, OpenGL 4.5 | DirectX 12_1, OpenGL 4.5, OpenCL 1.2 | DirectX 12_1, OpenGL 4.5, OpenCL 1.2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
technology | 14 nm | 10 nm | 10 nm | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Features | QuickSync | QuickSync | QuickSync | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Date of Announcement | 10.07.2019 | 11.01.2021 | 11.01.2021 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Power Consumption | 4.8 - 10 Watt | 4.8 - 10 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Displays | 3 Displays (max.) | 3 Displays (max.) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Predecessor | UHD Graphics 600 | UHD Graphics 600 |
|