Intel Xeon W-11955M: specs and benchmarks

Summary

Intel started Intel Xeon W-11955M sales 11 May 2021. This is Tiger Lake H45 architecture desktop processor primarily aimed at office systems. It has 8 cores and 16 threads, and is based on 10 nm SuperFin manufacturing technology, with a maximum frequency of 5000 MHz and a locked multiplier.

Compatibility-wise, this is Intel BGA 1499 processor with a TDP of 35 Watt and a maximum temperature of 72 °C. It supports DDR4, DDR4 memory.

General info

Of Xeon W-11955M processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance rating	170
Market segment	Server
Series	Intel Tiger Lake
Architecture codename	Tiger Lake H45 (2021)
Release date	11 May 2021 (1 year ago)

Technical specs

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	8 (Octa-Core)
Threads	16
Base clock speed	2.6 GHz	of 4.7 (FX-9590)
Boost clock speed	5 GHz	of 5.5 (Core i9-12900KS)
L1 cache	96K (per core)	of 1536 (EPYC Embedded 3401)
L2 cache	1.25 MB (per core)	of 12 (Core 2 Quad Q9550)
L3 cache	24 MB (shared)	of 32 (Ryzen Threadripper 1998)
Chip lithography	10 nm SuperFin	of 5 (Apple M1)
Maximum core temperature	100 °C	of 110 (Atom x7-E3950)
Maximum case temperature (TCase)	72 °C	of 105 (Core i7-5950HQ)
64 bit support	+
Windows 11 compatibility	+
Unlocked multiplier	-

Compatibility

Information on Xeon W-11955M 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 (Opteron 842)
Socket	Intel BGA 1499
Thermal design power (TDP)	35 Watt	of 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Xeon W-11955M. You'll probably need this information if you require some particular technology.

Instruction set extensions	Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2, Intel® AVX-512
AES-NI	+
AVX	+
vPro	+
Speed Shift	+
Hyper-Threading Technology	+
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	+
Secure Key	+
SGX	-
OS Guard	+

Virtualization technologies

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

VT-d	+
VT-x	+
EPT	+

Memory specs

Types, maximum amount and channel number of RAM supported by Xeon W-11955M's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory types	DDR4, DDR4	of 4800 (Ryzen 9 6980HX)
Maximum memory size	128 GB	of 786 (Xeon E5-2670 v3)
Max memory channels	2	of 12 (Xeon Platinum 9221)
Maximum memory bandwidth	51.2 GB/s	of 281.6 (Xeon Platinum 9221)
ECC memory support	+

Graphics specifications

General parameters of GPU integrated into Xeon W-11955M.

Integrated graphics card	Intel® UHD Graphics for 11th Gen Intel® Processors
Quick Sync Video	+
Graphics max frequency	1.45 GHz
Execution Units	32

Graphics interfaces

Available interfaces and connections of Xeon W-11955M's integrated GPU.

Number of displays supported

4

Graphics image quality

Maximum display resolutions supported by Xeon W-11955M's integrated GPU, including resolutions over different interfaces.

Max resolution over HDMI 1.4	4096x2304@60Hz
Max resolution over eDP	4096x2304@60Hz
Max resolution over DisplayPort	7680x4320@60Hz

Graphics API support

APIs supported by Xeon W-11955M's integrated GPU, sometimes API versions are included.

DirectX	12.1
OpenGL	4.6

Peripherals

Specifications and connection types of supported peripherals.

PCI Express lanes

20

of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Xeon W-11955M. Overall benchmark performance is measured in points in 0-100 range, higher is better.

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Overall 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.

Relative perfomance

Overall Xeon W-11955M performance compared to nearest competitors among server CPUs.

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