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Intel Core i7-8559U

The Intel Core i7-8559U is a quad-core SoC for notebooks based on the Coffee Lake architecture and was announced in April 2018. Compared to its predecessor Core i7-7567U, the CPU is now a quad-core with Hyperthreading support for the execution of up to 8 threads simultaneously. The base frequency is 2.7 GHz, but the Turbo goes all the way up to 4.5 GHz. It is also equipped with an Intel Iris Plus Graphics 655 GPU with 128 MB eDRAM, a dual-channel memory controller (DDR4) as well as VP9 and H.265 video decoding as well as encoding. The chip is still manufactured in a 14nm process with FinFET transistors.

Compared to faster Core i5 models with eDRAM and 28 Watts, the i5-8559U features 8 MB smart cache and the fastest clock of the Iris Plus GPU.

Architecture

Intel basically uses the same micro architecture compared to Kaby Lake, so the per-MHz performance does not differ. The manufacturer only reworked the Speed Shift technology for faster dynamic adjustments of voltages and clocks, and the improved 14nm process allows much higher frequencies combined with better efficiency than before.

Performance

Clocked at up to 4.5 GHz, the Core i7-8559U is currently the fastest quad core ULV from Intel. Whether these speeds can be maintained in practice depends on the cooling capabilities of the laptop, but the performance should be above the Core i7-8650U due to the increased TDPConsidering the clocks of the Core i7-8559U, its performance should be between the 15W models Core i5-8350U and Core i7-8550U. The i5-8259U should still be faster than the i7-8550U in practice thanks to the increased TDP, especially during sustained workloads.

Graphics

The integrated Intel Iris Plus 655 Graphics is the GT3e model of the Kaby Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1200 MHz  and the performance is comparable to a GeForce 930M or 940MX thanks to fast eDRAM cache. However, there aren't any significant improvements compared to the old Iris Plus 650, so modern games can often not be played smoothly or only at the lowest or medium settings, respectively.

Contrary to Skylake, Kaby lake now also supports H.265/HEVC Main 10 with a 10-bit color depth as well as Google's VP9 codec. The dual-core Kaby Lake processors announced in January should also support HDCP 2.2.

Power Consumption

The chip is manufactured in an improved 14nm process with FinFET transistors, which improves the efficiency even further. Intel specifies the TDP with 28 Watts, which can be reduced to 23 Watts (cTDP Down) depending on the usage scenario. The TDP is pretty high compared to the common 15-Watt TDP for quad-core processors, but allows a better utilization of CPU and GPU Turbo.

SeriesIntel Core i7
CodenameCoffee Lake
Series: Core i7 Coffee Lake
Intel Core i7-8850H (compare)2600 - 4300 MHz6 / 129 MB
Intel Core i7-8750H (compare)2200 - 4100 MHz6 / 129 MB
» Intel Core i7-8559U2700 - 4500 MHz4 / 88 MB
Clock Rate2700 - 4500 MHz
Level 1 Cache256 KB
Level 2 Cache1 MB
Level 3 Cache8 MB
Number of Cores / Threads4 / 8
Max. Power Consumption (TDP = Thermal Design Power)28 Watt
Manufacturing Technology14 nm
Max. Temperature100 °C
SocketFCBGA1528
FeaturesDual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, Intel SSE4.1, Intel SSE 4.2
GPUIntel Iris Plus Graphics 655 (300 - 1200 MHz)
64 Bit64 Bit support
Announcement Date04/03/2018
Product Link (external)Intel Core i7 8559U

Benchmarks

Cinebench R11.5 - CPU Single 64Bit
2.2 Points (89%)
Cinebench R10 - Rendering Single 32Bit
7249 Points (79%)
7-Zip 18.03 - 7z b 4
30570 MIPS (69%)
7-Zip 18.03 - 7z b 4 -mmt1
6171 MIPS (14%)
3DMark 06 - CPU
8313 Points (24%)
Super Pi mod 1.5 XS 1M *
8.3 Seconds (2%)
Super Pi Mod 1.5 XS 32M *
464.1 Seconds (2%)
3DMark 11 - Performance Physics 1280x720
9162 points (49%)
3DMark - Cloud Gate Standard Physics 1280x720
7377 Points (19%)
3DMark - Fire Strike Physics 1920x1080
10418 Points (38%)
Geekbench 4.1/4.2 - 64 Bit Single-Core Score
5395 Points (85%)
Geekbench 4.1/4.2 - 64 Bit Multi-Core Score
17702 Points (49%)
Power Consumption - Cinebench R15 Multi Power Consumption (external Monitor) ultra *
74.2 Watt (31%)
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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v1.8

Reviews for the Intel Core i7 8559U processor

Apple MacBook Pro 13 2018 Touchbar i7 (Intel Iris Plus Graphics 655, 13.3")
» Apple MacBook Pro 13 2018 Touchbar i7 - External Review

Intel NUC8i7BE (Intel Iris Plus Graphics 655, ")
» Intel NUC Kit NUC8i7BEH (i7-8559U) Mini PC Review - Review

» Mobile CPU Comparison
Comparison of all mobile CPU series

» Mobile Processors - Benchmarklist
Benchmarklist of all known CPUs that are used in laptops (desktop and laptop CPUs)

Other CPUs of the series Intel Core i7

» Intel Core i7 8850H
   2.6 GHz / 1.5 MB L2 + 9 MB L3
» Intel Core i7 8750H
   2.2 GHz / 1.5 MB L2 + 9 MB L3
» Intel Core i7 8809G
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8709G
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8706G
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8705G
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 7920HQ
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4940MX
   3.1 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 7820HQ
   2.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 7820HK
   2.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 6920HQ
   2.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 5950HQ
   2.9 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4930MX
   3 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 6970HQ
   2.8 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 7700HQ
   2.8 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 6870HQ
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4980HQ
   2.8 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4910MQ
   2.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 5850HQ
   2.7 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3940XM
   3 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8559U
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 5700HQ
   2.7 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 5750HQ
   2.5 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 6820HK
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 6820HQ
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 6770HQ
   2.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4900MQ
   2.8 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4960HQ
   2.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 6700HQ
   2.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4810MQ
   2.8 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4870HQ
   2.5 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 8650U
   1.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 3920XM
   2.9 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4800MQ
   2.7 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4950HQ
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4860HQ
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4720HQ
   2.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3840QM
   2.8 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4850HQ
   2.3 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4710HQ
   2.5 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4710MQ
   2.5 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4770HQ
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3820QM
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 3740QM
   2.7 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3720QM
   2.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4700HQ
   2.4 GHz / 1 MB L2 + 6 MB L3