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Intel UHD Graphics 620 vs Intel Iris Plus Graphics G4 (Ice Lake 48 EU) vs Intel UHD Graphics G1 (Ice Lake 32 EU)

Intel UHD Graphics 620

► remove from comparison Intel UHD Graphics 620

The Intel UHD Graphics 620 (GT2) is an integrated graphics unit, which can be found in various ULV (Ultra Low Voltage) processors of the Kaby Lake Refresh generation (8th generation Core). Compared to the similar named Intel HD Graphics 620 in the 2016 Kaby Lake CPUs, only the name changed from HD to UHD. It is clocked with up to 1.150 MHz and therefore 100 MHz higher than the old HD Graphics 620 (max. 1.050 MHz) and offer a comparable performance. Due to its lack of dedicated graphics memory or eDRAM cache, the HD 620 has to access the main memory (2x 64bit DDR3/DDR4).

Performance

The exact performance of the UHD Graphics 620 depends on various factors like L3 cache size, memory configuration (DDR3/DDR4) and maximum clock rate of the specific model and as is similar to the Intel HD Graphics 620 and Intel HD Graphics 630. Compared to the average HD Graphics 620, the UHD graphics profits from the quad-core CPU a bit in our gaming benchmarks. Therefore, should be positioned between a GeForce 910M and 920M dedicated graphics card from Nvidia. For games, the drivers however are not that fast updated and tested as with GeForce graphics cards. In our tests, the UHD 620 is most suited for casual games like Team Fortress 2, Rocket League or Farming Simulator 17. See below for a list of modern games tested with various models.

Features

The revised video engine now supports H.265/HEVC Main10 profile in hardware with 10 bit colors. Furthermore, Googles VP9 codec can also be hardware decoded. The first models do not support HDCP 2.2 and therefore Netflix 4K. This was added with the new models in 2017 and beginning of May 2017 also the older CPU models like the i3-7100U are now shipped with a new S-Spec Code that supports HDCP 2.2. HDMI 2.0 however is still only supported with an external converter chip (LSPCon).

Power Consumption

The UHD Graphics 620 can be found in mobile processors specified at 15 W TDP and is therefore suited for compact laptops and ultrabooks. The power consumption during playing The Witcher 3 (with an external monitor) was comparable to a Intel HD Graphics 620 based laptop and on the lowest end of all of our measurements. Dedicated GPUs, like the GeForce 940MX, needed a lot more power.

Intel Iris Plus Graphics G4 (Ice Lake 48 EU)

► remove from comparison Intel Iris Plus Graphics G4 (Ice Lake 48 EU)

The Intel Iris Plus Graphics G4(Ice Lake with 48 EUs) is an integrated graphics card in the Ice Lake SoCs (10th generation core 10xxG4) for laptops. It offers no dedicated graphics memory (no eDRAM cache like the Intel Iris Graphics 655 predecessor of the Coffee Lake SoCs). It offers 48 of the 64 EUs (Execution Units / Shader Blocks) of the Ice Lake chip and the clock rate depends on the processor model. At launch it looks like all models have a 300 MHz base clock and only differ in the boost clock (1050 - 1100 MHz). Another difference is the TDP as it can be configured from 12 - 25 Watt in the 15 Watt U-models and maybe even higher in the 25 Watt models that will come later.

The performance was not yet communicated, but due to the 25% less cores and similar clock speeds the performance should be clearly lower than the full Iris Plus G7 models. Although, the Ice Lake G4 graphics does not feature any dedicated graphics memory it should perform better than the old Iris Plus 655 with 128 MB eDRAM. Compared to AMDs offering, we suspect the performance should be similar to an AMD Radeon RX Vega 8 GPU. Therefore, the gaming performance should be only sufficient for low demanding games like Rocket League or Overwatch.

A special new feature of the Gen11 graphics card is the new Variable Rate Shading (VRS) support. With it game designers can decide where to spend shading time and e.g. shade object in the background or behind fog with less resolution (up to using only one source for a 4x4 block). With this technique early results show up to 1.3x performance in Unreal Engine POC and 1.2x speedup in Civ 6. Up to now VRS is only supported by the new Nvidia Turing architecture (GTX 1650 and up).

Another improved hardware piece is the integrated video de- and encoder that was improved significantly according to Intel. They did not specify any more details, but the previous generation was able to decode VP9 and H.265/HEVC in Main10 profile with 10 bit color depth using the dedicated hardware.

The Iris Plus G4 supports three display pipes that can each output 5K60 signals (via DisplayPort 1.4 HBR3 or HDMI 2.0b). Combining two pipes, the chip is capable to output 8k content.

The Ice Lake SoCs and therefore the integrated GPU are manufactured in the modern 10nm+ process at Intel that should be comparable to the 7nm process of TSMC.

Intel UHD Graphics G1 (Ice Lake 32 EU)

► remove from comparison Intel UHD Graphics G1 (Ice Lake 32 EU)

The Intel UHD Graphics G1 (Ice Lake with 32 EUs) is an integrated graphics card in the Ice Lake SoCs (10th generation core 10xxG1) for laptops. It is the slowest GPU version in the Ice Lake U series and offers only 32 of the 64 EUs (Execution Units / Shader Blocks). It offers no dedicated graphics memory (no eDRAM cache like the Intel Iris Graphics 655 predecessor of the Coffee Lake SoCs). The clock rate depends on the processor model. At launch it looks like all models have a 300 MHz base clock and only differ in the boost clock (1050 - 1100 MHz). Another difference is the TDP as it can be configured from 12 - 25 Watt in the 15 Watt U-models and maybe even higher in the 25 Watt models that will come later.

The performance should above the old Intel UHD Graphics 620 (Gen. 9.5) that was e.g. found in Whiskey Lake processors (thanks to the higher core count and improved architecture). Most likely the G1 graphics wont reach the performance of the old Iris Plus 640 that offered more cores and 64 MB eDRAM. Therefore, only a few new AAA games can be played fluently with the UHD Graphics G1.

A special new feature of the Gen11 graphics card is the new Variable Rate Shading (VRS) support. With it game designers can decide where to spend shading time and e.g. shade object in the background or behind fog with less resolution (up to using only one source for a 4x4 block). With this technique early results show up to 1.3x performance in Unreal Engine POC and 1.2x speedup in Civ 6. Up to now VRS is only supported by the new Nvidia Turing architecture (GTX 1650 and up).

Another improved hardware piece is the integrated video de- and encoder that was improved significantly according to Intel. They did not specify any more details, but the previous generation was able to decode VP9 and H.265/HEVC in Main10 profile with 10 bit color depth using the dedicated hardware.

The Ice Lake SoCs and therefore the integrated GPU are manufactured in the modern 10nm process at Intel that should be comparable to the 7nm process of TSMC.

Intel UHD Graphics 620Intel Iris Plus Graphics G4 (Ice Lake 48 EU)Intel UHD Graphics G1 (Ice Lake 32 EU)
ManufacturerIntelIntelIntel
Gen. 11 Series
Iris Plus Graphics 655 48 @ 0.3 - 1.2 GHz
Iris Plus Graphics 650 48 @ 0.3 - 1.1 GHz64/128 Bit
Iris Plus Graphics 645 48 @ 0.3 - 1.15 GHz
Iris Plus Graphics 640 48 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 630 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics P630 24 @ 0.3 - 1.2 GHz64/128 Bit
HD Graphics 630 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics P630 24 64/128 Bit
UHD Graphics 620 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics 620 24 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 617 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics 615 24 @ 0.3 - 1 GHz64/128 Bit
HD Graphics 615 24 @ 0.3 - 1.05 GHz64/128 Bit
Iris Plus Graphics G7 (Ice Lake 64 EU) 64 @ 0.3 - 1.1 GHz
Iris Plus Graphics G4 (Ice Lake 48 EU) 48 @ 0.3 - 1.1 GHz
UHD Graphics G1 (Ice Lake 32 EU) 32 @ 0.3 - 1.1 GHz
UHD Graphics G7 (Lakefield GT2 64 EU) 64 @ 0.2 - 0.5 GHz
UHD Graphics G4 (Lakefield GT1 48 EU) 48 @ 0.2 - 0.5 GHz
UHD Graphics (Jasper Lake 32 EU) 32 @ 0.35 - 0.9 GHz
UHD Graphics (Jasper Lake 24 EU) 24 @ 0.35 - 0.8 GHz
UHD Graphics (Jasper Lake 16 EU) 24 @ 0.35 - 0.8 GHz
Iris Plus Graphics G7 (Ice Lake 64 EU) 64 @ 0.3 - 1.1 GHz
Iris Plus Graphics G4 (Ice Lake 48 EU) 48 @ 0.3 - 1.1 GHz
UHD Graphics G1 (Ice Lake 32 EU) 32 @ 0.3 - 1.1 GHz
UHD Graphics G7 (Lakefield GT2 64 EU) 64 @ 0.2 - 0.5 GHz
UHD Graphics G4 (Lakefield GT1 48 EU) 48 @ 0.2 - 0.5 GHz
UHD Graphics (Jasper Lake 32 EU) 32 @ 0.35 - 0.9 GHz
UHD Graphics (Jasper Lake 24 EU) 24 @ 0.35 - 0.8 GHz
UHD Graphics (Jasper Lake 16 EU) 24 @ 0.35 - 0.8 GHz
CodenameKaby-Lake-Refresh GT2Ice Lake G4 Gen. 11Ice Lake G1 Gen. 11
ArchitectureGen. 9.5Gen. 11 Ice LakeGen. 11 Ice Lake
Pipelines24 - unified48 - unified32 - unified
Core Speed300? - 1150 (Boost) MHz300 - 1100 (Boost) MHz300 - 1100 (Boost) MHz
Memory Bus Width64/128 Bit
Memory TypeDDR3/DDR4DDR4DDR4
Shared Memoryyesyesyes
DirectXDirectX 12_1DirectX 12_1DirectX 12_1
technology14 nm10 nm10 nm
FeaturesQuickSyncQuickSyncQuickSync
Date of Announcement01.09.2017 28.05.2019 28.05.2019
CPU in UHD Graphics 620GPU Base SpeedGPU Boost / Turbo
Intel Core i7-10810U6 x 1100 MHz, 15 W300 MHz? MHz
Intel Core i7-10710U6 x 1100 MHz, 15 W300 MHz1150 MHz
Intel Core i7-10610U4 x 1800 MHz, 15 W300 MHz1150 MHz
min. - max.300 MHz900 - 1150 MHz
CPU in Iris Plus Graphics G4 (Ice Lake 48 EU)GPU Base SpeedGPU Boost / Turbo
Intel Core i5-1035G44 x 1100 MHz, 15 W300 MHz1050 MHz
Intel Core i5-1030G44 x 700 MHz, 9 W300 MHz1050 MHz
Intel Core i3-1000NG42 x 1100 MHz, 9 W300 MHz900 MHz
Intel Core i3-1000G42 x 1100 MHz, 9 W300 MHz900 MHz
min. - max.300 MHz900 - 1150 MHz
CPU in UHD Graphics G1 (Ice Lake 32 EU)GPU Base SpeedGPU Boost / Turbo
Intel Core i5-1035G14 x 1000 MHz, 15 W300 MHz1050 MHz
Intel Core i5-1034G14 x 800 MHz, 15 W300 MHz? MHz
Intel Core i3-1005G12 x 1200 MHz, 15 W300 MHz900 MHz
Intel Core i3-1000G12 x 1100 MHz, 9 W300 MHz900 MHz
min. - max.300 MHz900 - 1150 MHz

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy - UHD Graphics 620
6.5 pt (7%)
Performance Rating - 3DMark 11 + Fire Strike + Time Spy - Iris Plus Graphics G4 (Ice Lake 48 EU)
8.4 pt (9%)
Performance Rating - 3DMark 11 + Fire Strike + Time Spy - UHD Graphics G1 (Ice Lake 32 EU)
6.5 pt (7%)
3DMark - 3DMark Time Spy Score
min: 343     avg: 439     median: 435.5 (2%)     max: 708 Points
min: 699     avg: 724     median: 732 (4%)     max: 741 Points
3DMark - 3DMark Time Spy Graphics
min: 299     avg: 384     median: 379.5 (2%)     max: 760 Points
min: 619     avg: 639     median: 646 (3%)     max: 652 Points
3DMark - 3DMark Ice Storm Unlimited Graphics
min: 60554     avg: 88527     median: 88725 (14%)     max: 115515 Points
min: 50243     avg: 82914     median: 82913.5 (13%)     max: 115584 Points
min: 84440     avg: 97086     median: 94938 (15%)     max: 114658 Points
3DMark - 3DMark Ice Storm Extreme Graphics
min: 26409     avg: 43034     median: 42660 (6%)     max: 59483 Points
48559 Points (7%)
3DMark - 3DMark Cloud Gate Score
min: 5358     avg: 8157     median: 8139 (11%)     max: 10960 Points
min: 10992     avg: 11496     median: 11495.5 (15%)     max: 11999 Points
3DMark - 3DMark Cloud Gate Graphics
min: 6205     avg: 9224     median: 9312 (5%)     max: 11437 Points
min: 14903     avg: 14910     median: 14910 (7%)     max: 14917 Points
3DMark - 3DMark Fire Strike Standard Score
min: 538     avg: 1056     median: 1071 (3%)     max: 1313 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 557     avg: 1153     median: 1164 (2%)     max: 1444 Points
3DMark - 3DMark Ice Storm Graphics
min: 13790     avg: 68085     median: 67512 (9%)     max: 102010 Points
74346 Points (10%)
3DMark - 3DMark Sling Shot (ES 3.0) Unlimited
7727 Points (46%)
3DMark - 3DMark Sling Shot (ES 3.0) Unlimited Graphics
8007 Points (19%)
3DMark - 3DMark Sling Shot Extreme (ES 3.1) Unlimited
min: 5204     avg: 5377     median: 5376.5 (55%)     max: 5549 Points
3DMark - 3DMark Sling Shot Extreme (ES 3.1) Unlimited Graphics
min: 4856     avg: 5023     median: 5023 (20%)     max: 5190 Points
3DMark - 3DMark Night Raid
min: 3967     avg: 5202     median: 5245 (8%)     max: 6637 Points
8216 Points (12%)
min: 5465     avg: 5942     median: 5623 (8%)     max: 6738 Points
3DMark - 3DMark Night Raid Graphics Score
min: 4163     avg: 5221     median: 5312 (3%)     max: 6380 Points
9179 Points (6%)
min: 5834     avg: 6353     median: 6024 (4%)     max: 7201 Points
3DMark 11 - 3DM11 Performance Score
min: 1175     avg: 1925     median: 1935 (5%)     max: 2283 Points
3DMark 11 - 3DM11 Performance GPU
min: 1144     avg: 1741     median: 1744 (3%)     max: 2006 Points