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Intel Core i7-8557U

The Intel Core i7-8557U is a quad-core SoC for notebooks based on the Coffee Lake architecture that was announced in the new entry level MacBook Pro 13 in mid 2019. Compared to its predecessor, the CPU is now a quad-core with Hyperthreading support for the execution of up to 8 threads simultaneously. The base frequency is only 1.7 GHz, but the Turbo goes all the way up to 4.5 GHz. It is also equipped with an Intel Iris Plus Graphics 645 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 slower Core i5 model with eDRAM and 15 Watts, the i5-8557U 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 i7-8557U should offer an excellent single thread performance. The multi core performance is greatly improved due to the two additional cores (compared to the predecessor) but may be limited by the 15 Watt TDP (especially for sustained workloads).

Graphics

The integrated Intel Iris Plus 645 Graphics is the GT3e model of the Coffee Lake GPU (Intel Gen. 9.5). It has 48 Execution Units running at 300-1150 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 15 Watts and therefore suited for thin and light laptops.

SeriesIntel Core i7
CodenameCoffee Lake
Series: Core i7 Coffee Lake
Intel Core i7-9850H (compare)2600 - 4600 MHz6 / 1212 MB
Intel Core i7-9750H (compare)2600 - 4500 MHz6 / 1212 MB
Intel Core i7-8850H (compare)2600 - 4300 MHz6 / 129 MB
Intel Core i7-8750H (compare)2200 - 4100 MHz6 / 129 MB
Intel Core i7-8559U (compare)2700 - 4500 MHz4 / 88 MB
» Intel Core i7-8557U1700 - 4500 MHz4 / 88 MB
Clock Rate1700 - 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 645 (300 - 1150 MHz)
64 Bit64 Bit support
Announcement Date07/16/2019
Product Link (external)Intel Core i7 8557U

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Other CPUs of the series Intel Core i7

» Intel Core i7 9850H
   2.6 GHz / 1.5 MB L2 + 12 MB L3
» Intel Core i7 9750H
   2.6 GHz + 12 MB L3
» 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 8559U
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8557U
   1.7 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 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 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 8665U
   1.9 GHz / 1 MB L2 + 8 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 8565U
   1.8 GHz / 1 MB L2 + 8 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
» Intel Core i7 4700MQ
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4760HQ
   2.1 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4722HQ
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2960XM
   2.7 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 7567U
   3.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 7660U
   2.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 7600U
   2.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4712HQ
   2.3 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4712MQ
   2.3 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4750HQ
   2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3635QM
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3630QM
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4702HQ
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 4702MQ
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2860QM
   2.5 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 2920XM
   2.5 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 3615QM
   2.3 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3610QM
   2.3 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3632QM
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2760QM
   2.4 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 7560U
   2.4 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2820QM
   2.3 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 3612QM
   2.1 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2720QM
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2675QM
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2670QM
   2.2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 6567U
   3.3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 7500U
   2.7 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2635QM
   2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2630QM
   2 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 5557U
   3.1 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4610M
   3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 940XM
   2.13 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 4600M
   2.9 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4578U
   3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 920XM
   2 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 3540M
   3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4558U
   2.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 6600U
   2.6 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 6650U
   2.2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 6560U
   2.2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 3520M
   2.9 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 6500U
   2.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 5600U
   2.6 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 5650U
   2.2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2640M
   2.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 5500U
   2.4 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 5550U
   2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 840QM
   1.86 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 2620M
   2.7 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4600U
   2.1 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4650U
   1.7 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 3687U
   2.1 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4510U
   2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 640M
   2.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 820QM
   1.73 GHz / 1 MB L2 + 8 MB L3
» Intel Core i7 8500Y
   1.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 3667U
   2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4500U
   1.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4550U
   1.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 7Y75
   1.3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 740QM
   1.73 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 3537U
   2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 3517U
   1.9 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 620M
   2.66 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 720QM
   1.6 GHz / 1 MB L2 + 6 MB L3
» Intel Core i7 2649M
   2.3 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 4610Y
   1.7 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2629M
   2.1 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2677M
   1.8 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 660LM
   2.27 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2637M
   1.7 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2657M
   1.6 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 3689Y
   1.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 2617M
   1.5 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 640LM
   2.13 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 620LM
   2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 680UM
   1.47 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 660UM
   1.33 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 640UM
   1.2 GHz / 0.5 MB L2 + 4 MB L3
» Intel Core i7 620UM
   1.06 GHz / 0.5 MB L2 + 4 MB L3

Surrounding CPUs

- Intel Core i7 4910MQ
   2.9 GHz / 1 MB + 8 MB
- Intel Xeon (Desktop) E3-1231 v3
   3.4 GHz / 1 MB + 8 MB
- Intel Xeon (Desktop) E3-1230 v3
   3.3 GHz / 1 MB + 8 MB
- Intel Core i7 8559U
   2.7 GHz / 1 MB + 8 MB
- Intel Ice Lake 1068G7
   2.3 GHz / 2 MB + 8 MB
» Intel Core i7 8557U
   1.7 GHz / 1 MB L2 + 8 MB L3
+ Intel Core i7 5850HQ
   2.7 GHz / 1024 KB + 6144 KB
+ Intel Core i5 (Desktop) 6600K
   3.5 GHz / 1024 KB + 6144 KB
+ Intel Core i7 (Desktop) 3770K
   3.5 GHz / 1024 KB + 8192 KB
+ Intel Core i7 (Desktop) 3770
   3.4 GHz / KB + 8192 KB
+ Intel Core i7 3940XM
   3 GHz / 1024 KB + 8192 KB
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> Notebook / Laptop Reviews and News > Benchmarks / Tech > Notebook Processors > Intel Core i7 > Intel Core i7-8557U Processor
Klaus Hinum, 2019-07-16 (Update: 2019-07-16)