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

Intel UHD Graphics 620

► remove 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 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 620Intel Iris Plus Graphics G4 (Ice Lake 48 EU)
ManufacturerIntelIntel
Gen. 11 Series
Iris Plus Graphics 655 compare 48 @ 300 - 1200 MHz
Iris Plus Graphics 650 compare 48 @ 300 - 1100 MHz64/128 Bit
Iris Plus Graphics 645 compare 48 @ 300 - 1150 MHz
Iris Plus Graphics 640 compare 48 @ 300 - 1050 MHz64/128 Bit
UHD Graphics 630 compare 24 @ 300 - 1150 MHz64/128 Bit
UHD Graphics P630 compare 24 @ 300 - 1200 MHz64/128 Bit
HD Graphics 630 compare 24 @ 300 - 1150 MHz64/128 Bit
HD Graphics P630 compare 24 64/128 Bit
UHD Graphics 620 24 @ 300? - 1150 MHz64/128 Bit
HD Graphics 620 compare 24 @ 300 - 1050 MHz64/128 Bit
UHD Graphics 617 compare 24 @ 300 - 1150 MHz64/128 Bit
UHD Graphics 615 compare 24 @ 300 - 1000 MHz64/128 Bit
HD Graphics 615 compare 24 @ 300 - 1050 MHz64/128 Bit
Iris Plus Graphics G7 (Ice Lake 64 EU) compare 64 @ 300 - 1100 MHz
Iris Plus Graphics G4 (Ice Lake 48 EU) 48 @ 300 - 1100 MHz
UHD Graphics G1 (Ice Lake 32 EU) compare 32 @ 300 - 1100 MHz
UHD Graphics G7 (Lakefield GT2 64 EU) compare 64 @ 200 - 500 MHz
UHD Graphics G4 (Lakefield GT1 48 EU) compare 48 @ 200 - 500 MHz
CodenameKaby-Lake-Refresh GT2Ice Lake G4 Gen. 11
ArchitectureGen. 9.5Gen. 11 Ice Lake
Cores24 - unified48 - unified
Core300? - 1150 (Boost) MHz300 - 1100 (Boost) MHz
Bus64/128 Bit
MemoryDDR3/DDR4DDR4
Shared Memoryyesyes
DirectXDirectX 12_1DirectX 12_1
Technology14 nm10 nm
FeaturesQuickSyncQuickSync
Introduced01.09.2017 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

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
7 pt (8%)
3DMark - 3DMark Time Spy Score
min: 343     avg: 434     median: 435 (2%)     max: 512 Points
min: 699     avg: 724     median: 732 (4%)     max: 741 Points
3DMark - 3DMark Time Spy Graphics
min: 299     avg: 378     median: 379 (2%)     max: 443 Points
min: 619     avg: 639     median: 646 (3%)     max: 652 Points
3DMark - 3DMark Ice Storm Unlimited Graphics
min: 65949     avg: 89363     median: 89155 (16%)     max: 115515 Points
115584 Points (21%)
3DMark - 3DMark Ice Storm Extreme Graphics
min: 29002     avg: 43433     median: 42759 (6%)     max: 59483 Points
48559 Points (7%)
3DMark - 3DMark Cloud Gate Score
min: 5821     avg: 8164     median: 8135 (12%)     max: 10960 Points
10992 Points (16%)
3DMark - 3DMark Cloud Gate Graphics
min: 6910     avg: 9227     median: 9307 (5%)     max: 11436 Points
14917 Points (8%)
3DMark - 3DMark Fire Strike Standard Score
min: 538     avg: 1055     median: 1070 (4%)     max: 1298 Points
min: 839     avg: 1741     median: 1922 (6%)     max: 2071 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 557     avg: 1152     median: 1163 (3%)     max: 1418 Points
min: 922     avg: 1880     median: 2041 (5%)     max: 2230 Points
3DMark - 3DMark Ice Storm Graphics
min: 13790     avg: 68581     median: 67987 (9%)     max: 102010 Points
74346 Points (10%)
3DMark 11 - 3DM11 Performance Score
min: 1175     avg: 1927     median: 1935 (5%)     max: 2283 Points
min: 1980     avg: 3083     median: 3437 (9%)     max: 3513 Points
3DMark 11 - 3DM11 Performance GPU
min: 1235     avg: 1743     median: 1744 (3%)     max: 2006 Points