Intel Iris Plus Graphics 645 vs Intel UHD Graphics 617

Intel Iris Plus Graphics 645

► remove Intel Iris Plus Graphics 645

The 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 617

► remove Intel UHD Graphics 617

The Intel UHD Graphics 617 (GT2) is a low-end integrated graphics unit, which can be found in the Y-series of the Amber-Lake generation. This "GT2" version offers 24 Execution Units (EUs) clocked at up to 1050 MHz (depending on the CPU model). Due to its lack of dedicated graphics memory or eDRAM cache, the UHD 617 has to access the main memory (2x 64bit DDR3L/LPDDR3). Compared to the old HD Graphics 615 in Kaby-Lake-Y CPUs, the UHD 617 is the same GPU with slightly different clock speeds (depending on the model) and slight power/performance improvements due to the improved 14nm++ process. Compared to the similar UHD Graphics 615 in other Amber Lake models, the 617 looks to be higher clocked (+50 MHz) and has more headroom due to the higher TDP of 7 versus 5 Watt.

Performance

The 3D performance of the UHD 617 depends on the CPU model and the cooling / TDP-setting of the laptop. Furthermore, the used main memory (single channel, DDR3(L), amount) is influencing performance. On average the UHD graphics 617 should be very similar to the Kaby-Lake HD Graphics 615 due to the same architecture and similar speeds. That means that only low demanding games like Farming Simulator 17 or Rocket League are playable in lowest detail settings.

Features

The revised video engine in the HD 615 and UHD 615 / 617 now supports H.265/HEVC Main10 profile in hardware with 10 bit colors. Furthermore, Googles VP9 codec can also be hardware decoded. The UHD 617 should support HDCP 2.2 and therefore Netflix 4K. HDMI 2.0 however is still only supported with an external converter chip (LSPCon).

Power Consumption

The UHD Graphics 617 can be found in Y processors with 7 W TDP  and is therefore suited for very thin, mostly passively cooled subnotebooks like the MacBook Air 2018.

Intel Iris Plus Graphics 645Intel UHD Graphics 617
ManufacturerIntelIntel
Gen. 9.5 Series
Iris Plus Graphics 655 (compare) 48 @ 300 - 1200 (Boost) MHz
Iris Plus Graphics 650 (compare) 48 @ 300 - 1100 (Boost) MHz64/128 Bit
Iris Plus Graphics 645 48 @ 300 - 1150 (Boost) MHz
Iris Plus Graphics 640 (compare) 48 @ 300 - 1050 (Boost) MHz64/128 Bit
UHD Graphics 630 (compare) 24 @ 300 - 1150 (Boost) MHz64/128 Bit
UHD Graphics P630 (compare) 24 @ 300 - 1200 (Boost) MHz64/128 Bit
HD Graphics 630 (compare) 24 @ 300 - 1150 (Boost) MHz64/128 Bit
HD Graphics P630 (compare) 24 64/128 Bit
UHD Graphics 620 (compare) 24 @ 300? - 1150 (Boost) MHz64/128 Bit
HD Graphics 620 (compare) 24 @ 300 - 1050 (Boost) MHz64/128 Bit
UHD Graphics 617 24 64/128 Bit
UHD Graphics 615 (compare) 24 @ 300 - 1000 (Boost) MHz64/128 Bit
HD Graphics 615 (compare) 24 @ 300 - 1050 (Boost) MHz64/128 Bit
Iris Plus Graphics 655 (compare) 48 @ 300 - 1200 (Boost) MHz
Iris Plus Graphics 650 (compare) 48 @ 300 - 1100 (Boost) MHz64/128 Bit
Iris Plus Graphics 645 48 @ 300 - 1150 (Boost) MHz
Iris Plus Graphics 640 (compare) 48 @ 300 - 1050 (Boost) MHz64/128 Bit
UHD Graphics 630 (compare) 24 @ 300 - 1150 (Boost) MHz64/128 Bit
UHD Graphics P630 (compare) 24 @ 300 - 1200 (Boost) MHz64/128 Bit
HD Graphics 630 (compare) 24 @ 300 - 1150 (Boost) MHz64/128 Bit
HD Graphics P630 (compare) 24 64/128 Bit
UHD Graphics 620 (compare) 24 @ 300? - 1150 (Boost) MHz64/128 Bit
HD Graphics 620 (compare) 24 @ 300 - 1050 (Boost) MHz64/128 Bit
UHD Graphics 617 24 64/128 Bit
UHD Graphics 615 (compare) 24 @ 300 - 1000 (Boost) MHz64/128 Bit
HD Graphics 615 (compare) 24 @ 300 - 1050 (Boost) MHz64/128 Bit
CodenameKaby Lake GT3eKaby-Lake GT2
ArchitectureIntel Gen. 9.5 (Coffee Lake)Intel Gen. 9 (Amber Lake)
48 - 24 -
Core300 - 1150 (Boost) MHz
MemoryDDR3/DDR4DDR3L/LPDDR3
yesyes
DirectXDirectX 12 (FL 12_1)DirectX 12 (FL 12_1)
Technology14 nm14 nm
FeaturesQuickSyncQuickSync
Introduced10.07.2019 30.10.2018
Bus64/128 Bit
CPUGPU Base SpeedGPU Boost / Turbo
Intel Core i7-8557U4 x 1700 MHz, 28 W300 MHz1150 MHz
Intel Core i5-8257U4 x 1400 MHz, 15 W300 MHz1050 MHz
min. - max.300 - 300 MHz1050 - 1150 MHz

3DMark - Time Spy Score 2560x1440
322 Points (2%)
3DMark - Time Spy Graphics 2560x1440
286 Points (2%)
3DMark - Ice Storm Unlimited Graphics Score 1280x720 offscreen
77156 Points (15%)
3DMark - Cloud Gate Standard Score 1280x720
4841 Points (8%)
3DMark - Cloud Gate Standard Graphics 1280x720
7231 Points (4%)
3DMark - Fire Strike Score 1920x1080
845 Points (3%)
3DMark - Fire Strike Graphics 1920x1080
947 Points (2%)
3DMark 11 - Performance 1280x720
1711 points (5%)
3DMark 11 - Performance GPU 1280x720
1572 points (3%)
3DMark 06 Standard 1280x1024 + Intel UHD Graphics 617
Cinebench R15
OpenGL 64Bit + Intel UHD Graphics 617
Ref. Match 64Bit + Intel UHD Graphics 617

Average Benchmarks Intel UHD Graphics 617 → 100%

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* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

low 1280x720
UHD Graphics 617:
61.2  fps
med. 1920x1080
UHD Graphics 617:
26  fps
high 1920x1080
UHD Graphics 617:
18.3  fps
UHD Graphics 617:
»
low 1024x768
UHD Graphics 617:
16.1  fps
UHD Graphics 617:
»
low 1280x720
UHD Graphics 617:
47.6  fps
med. 1366x768
UHD Graphics 617:
27.9  fps
high 1366x768
UHD Graphics 617:
25  fps
ultra 1920x1080
UHD Graphics 617:
8.4  fps
UHD Graphics 617:
»

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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Graphics Card Comparison - Head 2 Head
Redaktion, 2017-09- 8 (Update: 2017-09-11)