Xeon W-10855M: specs and benchmarks

Summary

Intel started Xeon W-10855M sales 13 May 2020. This is a Comet Lake-H architecture notebook processor primarily aimed at office systems. It has 6 cores and 12 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 4900 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1440 processor with a TDP of 45 Watt. It supports DDR4 memory.

Primary details

Xeon W-10855M processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in the ranking	936
Place by popularity	not in top-100
Market segment	Mobile workstation
Series	Intel Comet Lake
Power efficiency	16.74	of 100.00 (Core Ultra 7 164U)
Architecture codename	Comet Lake-H (2020)
Release date	13 May 2020 (4 years ago)

Detailed specifications

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores	6 (Hexa-Core)
Threads	12
Base clock speed	2.8 GHz	of 4.7 GHz (Ryzen 9 7900X)
Boost clock speed	4.9 GHz	of 6.2 GHz (Core i9-14900KS)
Bus rate	8 GT/s
L1 cache	384 KB	of 80 KB (EPYC 9965)
L2 cache	1.5 MB	of 2 MB (Xeon 6980P)
L3 cache	12 MB	of 1152 MB (EPYC 9684X)
Chip lithography	14 nm	of 3 nm (Core Ultra 9 285K)
Maximum core temperature	100 °C	of 110 °C (Core Ultra 9 185H)
64 bit support	+
Windows 11 compatibility	+

Compatibility

Information on Xeon W-10855M compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration	1	of 8 (Xeon Platinum 8454H)
Socket	FCBGA1440
Power consumption (TDP)	45 Watt	of 3100 ‑ 4500 (Ryzen 7 7435H)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon W-10855M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI	+
AVX	+
Enhanced SpeedStep (EIST)	+
Speed Shift	+
Hyper-Threading Technology	+
Idle States	+
Thermal Monitoring	+
Flex Memory Access	+
SIPP	+
Turbo Boost Max 3.0	+

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT	+
EDB	+
Secure Key	+
Identity Protection	+
SGX	Yes with Intel® ME
OS Guard	+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

AMD-V	+
VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon W-10855M's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4
Maximum memory size	128 GB	of 6 TiB (EPYC 9654)
Max memory channels	2	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	45.8 GB/s	of 460.8 GB/s (EPYC 9654)
ECC memory support	+

Graphics specifications

General parameters of a GPU integrated into Xeon W-10855M.

Integrated graphics card	Intel® UHD Graphics for 10th Gen Intel® Processors
Quick Sync Video	+
Graphics max frequency	1.2 GHz

Graphics interfaces

Available interfaces and connections of Xeon W-10855M's integrated GPU.

Number of displays supported	3
eDP	+
DisplayPort	+
HDMI	+
DVI	+

Graphics image quality

Maximum display resolutions supported by Xeon W-10855M's integrated GPU, including resolutions over different interfaces.

4K resolution support	+
Max resolution over HDMI 1.4	4096x2304@30Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over DisplayPort	4096x2304@60Hz

Graphics API support

APIs supported by Xeon W-10855M's integrated GPU, sometimes API versions are included.

DirectX	12
OpenGL	4.5

Peripherals

Specifications and connection types of supported peripherals.

PCIe version	3.0	of 5.0 (EPYC 9655P)
PCI Express lanes	16	of 128 (EPYC 9655P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon W-10855M. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Closest competitors

Xeon W-10855M's performance relative to its closest rivals among mobile workstation CPUs.

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