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MagyarIntel Core i7-8557U vs Intel Xeon E-2176M
Intel Core i7-8557U
► remove from comparisonThe 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.
Intel Xeon E-2176M
► remove from comparison
The Intel Xeon E-2176M is a high-end processor for professional laptops with six cores based on the Coffee Lake architecture. The processor clocks at between 2.7 - 4.4 GHz (4.1 GHz with 6 cores) and can execute up to twelve threads simultaneously thanks to Hyper-Threading.
According to Intel, the CPU is manufactured in an improved 14nm (14nm++) process. The Xeon E-2176M is the second fastest model after the Xeon E-2178M / Core i9-8950HK in early 2018. Compared to the similar consumer Core i7-8850H, the mobile Xeon offers support for ECC main memory, is slightly higher clocked and offers more L3 cache.
The Coffee Lake architecture is similar to Kaby Lake and differs only in the amount of cores (now six cores for the high end versions) and the improved 14nm process (14nm++ according to Intel).
Performance
Due to the two additional cores, performance has increased by almost 50% compared to a similar clocked Kaby Lake processor.
Graphics
The integrated Intel UHD Graphics 630 iGPU is unchanged to the older Intel HD Graphics 630 an maybe only slightly higher clocked. We do expect a performance improvement, but as a low-end solution it will probably only display current games smoothly at reduced details - if at all.
Power Consumption
Intel specifies the TDP with 45 watts and therefore the i9 is only suited for big laptops with good cooling solutions.
| Model | Intel Core i7-8557U | Intel Xeon E-2176M | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series | Intel Coffee Lake | Intel Coffee Lake | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Codename | Coffee Lake-U | Coffee Lake-H | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Series: Coffee Lake Coffee Lake-H |
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| Clock | 1700 - 4500 MHz | 2700 - 4400 MHz | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L1 Cache | 256 KB | 384 KB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L2 Cache | 1 MB | 1.5 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| L3 Cache | 8 MB | 12 MB | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Cores / Threads | 4 / 8 | 6 / 12 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| TDP | 28 Watt | 45 Watt | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Technology | 14 nm | 14 nm | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| max. Temp. | 100 °C | 100 °C | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Socket | FCBGA1528 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Features | Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI, Intel SSE4.1, Intel SSE 4.2 | Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| iGPU | Intel Iris Plus Graphics 645 (300 - 1150 MHz) | Intel UHD Graphics 630 (350 MHz) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Architecture | x86 | x86 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Announced | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Manufacturer | ark.intel.com |
- Average benchmark values for this graphics card