Intel Xeon W-10855M

The Intel Xeon W-10855M is a high-end processor for laptops with six cores based on the Comet Lake architecture (CML-H, 4th generation of Skylake). The processor clocks at between 2.8 and 4.8 GHz (probably 4.4 GHz with 6 cores) and can execute up to twelve threads simultaneously thanks to Hyper-Threading. The processor is still manufactured in the old 14nm (14nm++) process. 

The Comet Lake architecture is similar to Coffee Lake and offers the same features and is produced in the same 14nm process. Other than the improved clock rates, the memory controller now also supports faster DDR4-2933 RAM.

The Intel Xeon W-10855M supports the management features vPro, TXT and SIPP and is the professional version of the Core i7-10850H with slightly higher clock speeds (+100 MHz base speed). 


The performance of the Xeon W-10855M should be similar to the old top model Core i7-8950H (6 cores, 2.9 – 4.8 GHz). Thanks to the 6 cores and high Turbo speeds, even demanding applications should run fine on the CPU. However, long term performance is always depending on the laptop cooling system and system configuration.


The integrated Intel UHD Graphics P630 iGPU is supposed to offer a similar performance as the UHD630 in the Core i7-9750H. As a  low-end solution it will only run current games smoothly at reduced details – if at all.

Power Consumption

Intel specifies the TDP with 45 watts and therefore the i7 is only suited for big laptops with good cooling solutions. Using cTDP-down, the CPU can also be configured to 35 Watt resulting in a reduced performance.

Intel Xeon W-10855M (CPU-Z)
Comet Lake-H
Manufacturer Intel
Series: Comet Lake Comet Lake-H
Intel Core i9-10980HK 2400 – 5300 MHz8 / 1616 MB
Intel Core i9-10885H 2400 – 5300 MHz8 / 1616 MB
Intel Xeon W-10885M 2400 – 5300 MHz8 / 1616 MB
Intel Core i9-10880H 2300 – 5100 MHz8 / 1616 MB
Intel Core i7-10875H 2300 – 5100 MHz8 / 1616 MB
Intel Core i7-10870H 2200 – 5000 MHz8 / 1616 MB
Intel Xeon W-10855M 2800 – 5100 MHz6 / 1212 MB
Intel Core i7-10850H 2700 – 5100 MHz6 / 1212 MB
Intel Core i7-10750H 2500 – 5000 MHz6 / 1212 MB
Intel Core i5-10400H 2600 – 4600 MHz4 / 88 MB
Intel Core i5-10300H 2500 – 4500 MHz4 / 88 MB
Intel Core i5-10200H 2400 – 4100 MHz4 / 88 MB
Codename Comet Lake-H
Clock Rate 2800 – 5100 MHz
Level 1 Cache 384 KB
Level 2 Cache 1.5 MB
Level 3 Cache 12 MB
Number of Cores / Threads 6 / 12
Power Consumption (TDP = Thermal Design Power) 45 Watt
Manufacturing Technology 14 nm
Socket FCBGA1440
Features Dual-Channel DDR4 Memory Controller, HyperThreading, AVX, AVX2, Quick Sync, Virtualization, AES-NI
GPU Intel UHD Graphics P630 (350 MHz)
64 Bit 64 Bit support
Announcement Date 05/13/2020

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