Intel UHD Graphics 620 vs Intel Iris Plus Graphics 640

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 640

► remove Intel Iris Plus Graphics 640

The Intel Iris Plus Graphics 640 (GT3e) is a processor graphics card for Kaby Lake models announced in January 2017. As the successor to the Intel Iris Graphics 540 (Skylake), the Iris Plus Graphics 640 is used for 15-Watt ULV models and is equipped with 64 MB eDRAM cache. There should not be any big changes compared to the Iris Graphics 540.

The so called GT3e version of the Kaby Lake GPU still has 48 Execution Units (EUs), which can reach up to 1050 MHz depending on the model. Besides eDRAM cache, the Iris 640 can also access the system memory (2x 64 Bit DDR3L-1600/LPDDR3-1866/DDR4-2400) via processor interface.

Compared to the Iris Plus 650 from the 28-Watt models, the Iris 640 only has a slightly lower maximum clock as well as the lower TDP, so the utilization of the Turbo Boost potential should be worse.

Performance

The exact performance of the Iris Plus Graphics 640 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 i7-7660U. Depending on the game, the Iris Plus 640 will probably be similar to the previous model somewhere between a dedicated GeForce 920M and GeForce 940M and is usually limited to low settings in modern games.

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 640 is used for 15-Watt ULV processor and therefore thin notebooks and Ultrabooks.

Intel UHD Graphics 620Intel Iris Plus Graphics 640
ManufacturerIntelIntel
Gen. 9.5 Series
Iris Plus Graphics 655 compare 48 @ 0.3 - 1.2 GHz
Iris Plus Graphics 650 compare 48 @ 0.3 - 1.1 GHz64/128 Bit
Iris Plus Graphics 645 compare 48 @ 0.3 - 1.15 GHz
Iris Plus Graphics 640 48 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 630 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics P630 compare 24 @ 0.3 - 1.2 GHz64/128 Bit
HD Graphics 630 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics P630 compare 24 64/128 Bit
UHD Graphics 620 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics 620 compare 24 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 617 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics 615 compare 24 @ 0.3 - 1 GHz64/128 Bit
HD Graphics 615 compare 24 @ 0.3 - 1.05 GHz64/128 Bit
Iris Plus Graphics 655 compare 48 @ 0.3 - 1.2 GHz
Iris Plus Graphics 650 compare 48 @ 0.3 - 1.1 GHz64/128 Bit
Iris Plus Graphics 645 compare 48 @ 0.3 - 1.15 GHz
Iris Plus Graphics 640 48 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 630 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics P630 compare 24 @ 0.3 - 1.2 GHz64/128 Bit
HD Graphics 630 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics P630 compare 24 64/128 Bit
UHD Graphics 620 24 @ 0.3 - 1.15 GHz64/128 Bit
HD Graphics 620 compare 24 @ 0.3 - 1.05 GHz64/128 Bit
UHD Graphics 617 compare 24 @ 0.3 - 1.15 GHz64/128 Bit
UHD Graphics 615 compare 24 @ 0.3 - 1 GHz64/128 Bit
HD Graphics 615 compare 24 @ 0.3 - 1.05 GHz64/128 Bit
CodenameKaby-Lake-Refresh GT2Kaby Lake GT3e
ArchitectureGen. 9.5Gen. 9.5 Kaby Lake
Cores24 - unified48 - unified
Core300? - 1150 (Boost) MHz300 - 1050 (Boost) MHz
Bus64/128 Bit64/128 Bit
MemoryDDR3/DDR4DDR3/DDR4
Shared Memoryyesyes
DirectXDirectX 12_1DirectX 12_1
Technology14 nm14 nm
FeaturesQuickSyncQuickSync
Introduced01.09.2017 03.01.2017
Max. Memory64 MB
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 640GPU Base SpeedGPU Boost / Turbo
Intel Core i7-7660U2 x 2500 MHz, 15 W300 MHz1050 MHz
Intel Core i7-7560U2 x 2400 MHz, 15 W300 MHz1050 MHz
Intel Core i5-7360U2 x 2300 MHz, 15 W300 MHz1000 MHz
Intel Core i5-7260U2 x 2200 MHz, 15 W300 MHz950 MHz
min. - max.300 MHz900 - 1150 MHz

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
6.5 pt (7%)
3DMark - 3DMark Time Spy Score
min: 343     avg: 434     median: 435 (2%)     max: 512 Points
min: 467     avg: 500     median: 494.5 (3%)     max: 543 Points
3DMark - 3DMark Time Spy Graphics
min: 299     avg: 378     median: 379 (2%)     max: 443 Points
min: 413     avg: 443     median: 437 (2%)     max: 483 Points
3DMark - 3DMark Ice Storm Unlimited Graphics
min: 65949     avg: 89283     median: 88981 (14%)     max: 115515 Points
min: 142163     avg: 147298     median: 145481 (23%)     max: 154251 Points
3DMark - 3DMark Ice Storm Extreme Graphics
min: 29002     avg: 43372     median: 42759 (6%)     max: 59483 Points
3DMark - 3DMark Cloud Gate Score
min: 5821     avg: 8169     median: 8139 (11%)     max: 10960 Points
min: 7558     avg: 8025     median: 8067 (11%)     max: 8711 Points
3DMark - 3DMark Cloud Gate Graphics
min: 6910     avg: 9229     median: 9309.5 (5%)     max: 11436 Points
min: 10486     avg: 11119     median: 11248 (6%)     max: 11495 Points
3DMark - 3DMark Fire Strike Standard Score
min: 538     avg: 1055     median: 1070 (3%)     max: 1298 Points
min: 1236     avg: 1349     median: 1310 (3%)     max: 1509 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 557     avg: 1152     median: 1163 (2%)     max: 1420 Points
min: 1315     avg: 1411     median: 1393.5 (3%)     max: 1541 Points
3DMark - 3DMark Ice Storm Graphics
min: 13790     avg: 68608     median: 67987 (9%)     max: 102010 Points
3DMark 11 - 3DM11 Performance Score
min: 1175     avg: 1928     median: 1935 (5%)     max: 2283 Points
min: 2136     avg: 2440     median: 2561 (7%)     max: 2664 Points
3DMark 11 - 3DM11 Performance GPU
min: 1235     avg: 1744     median: 1744 (3%)     max: 2006 Points
min: 1980     avg: 2275     median: 2379 (4%)     max: 2493 Points
3DMark Vantage
3DM Vant. Perf. total + Intel UHD Graphics 620
3DM Vant. Perf. GPU no PhysX + Intel UHD Graphics 620
3DMark 2001SE - 3DMark 2001 - Standard
34467 Points (36%)
3DMark 06 3DMark 06 - Standard 1280x1024 + Intel UHD Graphics 620
3DMark 06 - Standard 1280x1024 + Intel Iris Plus Graphics 640
Unigine Valley 1.0 - Unigine Valley 1.0 DX
min: 4.7     avg: 5.1     median: 5.1 (3%)     max: 5.5 fps
Unigine Heaven 3.0 - Unigine Heaven 3.0 DX 11
19.2 fps (6%)
SPECviewperf 12
specvp12 sw-03 + Intel UHD Graphics 620
specvp12 snx-02 + Intel UHD Graphics 620
specvp12 showcase-01 + Intel UHD Graphics 620
specvp12 mediacal-01 + Intel UHD Graphics 620
specvp12 maya-04 + Intel UHD Graphics 620
specvp12 energy-01 + Intel UHD Graphics 620
specvp12 creo-01 + Intel UHD Graphics 620
specvp12 catia-04 + Intel UHD Graphics 620
specvp12 3dsmax-05 + Intel UHD Graphics 620
SPECviewperf 13 specvp13 sw-04 + Intel UHD Graphics 620
specvp13 snx-03 + Intel UHD Graphics 620
specvp13 showcase-02 + Intel UHD Graphics 620
specvp13 medical-02 + Intel UHD Graphics 620
specvp13 maya-05 + Intel UHD Graphics 620
specvp13 energy-02 + Intel UHD Graphics 620
specvp13 creo-02 + Intel UHD Graphics 620
specvp13 catia-05 + Intel UHD Graphics 620
specvp13 3dsmax-06 + Intel UHD Graphics 620
Cinebench R10 Cinebench R10 Shading (32bit) + Intel UHD Graphics 620
Cinebench R10 Shading (32bit) + Intel Iris Plus Graphics 640
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit + Intel UHD Graphics 620
Cinebench R11.5 OpenGL 64 Bit + Intel Iris Plus Graphics 640
Cinebench R15
Cinebench R15 OpenGL 64 Bit + Intel UHD Graphics 620