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Intel® Xeon W-11855M

Release Date: Q2 2021

Generation: Xeon W

Intel® Xeon W-11855M CPU specifications

CPU

Code Name Tiger Lake
Lithography 10 nm SuperFin
Recommended Customer Price $450.00
Vertical Segment Mobile

memory specifications

ECC Memory Supported Yes
Max # of Memory Channels 2
Max Memory Bandwidth 51.2 GB/s
Max Memory Size (dependent on memory type) 128 GB
Memory Types Up to 3200 MT/s

performance

# of Cores 6
# of Threads 12
Bus Speed 8 GT/s
Cache 18 MB Intel Smart Cache
Configurable TDP-down 35 W
Configurable TDP-down Frequency 2.60 GHz
Configurable TDP-up 45 W
Configurable TDP-up Frequency 3.20 GHz
Intel Turbo Boost Max Technology 3.0 Frequency 4.90 GHz
Max Turbo Frequency 4.90 GHz

security and reliability

Intel AES New Instructions Yes
Intel Boot Guard Yes
Intel Control-Flow Enforcement Technology Yes
Intel OS Guard Yes
Intel Software Guard Extensions (Intel SGX) No
Intel Total Memory Encryption Yes
Intel Trusted Execution Technology Yes
Mode-based Execute Control (MBE) Yes
Secure Key Yes

expansion options

Chipset / PCH PCIe Revision Gen 3
Intel Thunderbolt™ 4 Yes
Max # of PCI Express Lanes 20
Microprocessor PCIe Revision Gen 4
PCI Express Configurations Up to 1x16+1x4, 2x8+1x4, 1x8+3x4

package specifications

Max CPU Configuration 1
Package Size 50 x 26.5
Sockets Supported FCBGA1787
Tjunction 100°C

graphics

# of Displays Supported 4
Device ID 0x9A70
DirectX Support 12.1
Execution Units 32
Graphics Base Frequency 350 MHz
Graphics Max Dynamic Frequency 1.45 GHz
Graphics Output eDP 1.4b, DP 1.4, HDMI 2.0b
Intel Quick Sync Video Yes
Max Resolution (DP) 7680x4320@60Hz
Max Resolution (HDMI) 4096x2304@60Hz
Max Resolution (eDP - Integrated Flat Panel) 4096x2304@60Hz
OpenCL Support 3.0
OpenGL Support 4.6
Processor Graphics Intel UHD Graphics for 11th Gen Intel Processors

advanced technologies

Instruction Set 64-bit
Instruction Set Extensions Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512
Intel Adaptix™ Technology Yes
Intel Deep Learning Boost (Intel DL Boost) Yes
Intel Flex Memory Access Yes
Intel Gaussian and Neural Accelerator 2.0 Yes
Intel High Definition Audio Yes
Intel Hyper-Threading Technology Yes
Intel Image Processing Unit 6.0
Intel Optane™ Memory Supported Yes
Intel Smart Sound Technology Yes
Intel Speed Shift Technology Yes
Intel Stable Image Platform Program (SIPP) Yes
Intel Turbo Boost Max Technology 3.0 Yes
Intel VT-x with Extended Page Tables (EPT) Yes
Intel Virtualization Technology (VT-x) Yes
Intel Virtualization Technology for Directed I/O (VT-d) Yes
Intel Volume Management Device (VMD) Yes
Intel Wake on Voice Yes
Intel vPro Platform Eligibility Yes
Thermal Monitoring Technologies Yes