Intel Xeon W-11855M processor review

Xeon W-11855M processor released by Intel; release date: 11 May 2021. At the time of release, the processor cost $450. The processor is designed for mobile-computers and based on Tiger Lake microarchitecture.

CPU is locked to prevent overclocking. Total number of cores - 6, threads - 12. Maximum CPU clock speed - 4.90 GHz. Maximum operating temperature - 100°C. Manufacturing process technology - 10 nm SuperFin. Cache size: L1 - 480 KB, L2 - 7.5 MB, L3 - 18 MB.

Supported memory types: Up to 3200 MT/s. Maximum memory size: 128 GB.

Supported socket types: FCBGA1787. Maximum number of processors in a configuration - 1.

The processor has integrated graphics Intel UHD Graphics for 11th Gen Intel Processors.

Benchmarks

PassMark
Single thread mark
Top 1 CPU
This CPU
3775
3336
PassMark
CPU mark
Top 1 CPU
This CPU
87767
19065
Name Value
PassMark - Single thread mark 3336
PassMark - CPU mark 19065

Integrated graphics – Intel Iris Xe Graphics G4

Technical info

Boost clock speed 1100 MHz
Compute units 48
Core clock speed 300 MHz
Manufacturing process technology 10 nm
Peak Double Precision (FP64) Performance 211.2 GFLOPS
Peak Half Precision (FP16) Performance 1.690 TFLOPS
Peak Single Precision (FP32) Performance 844.8 GFLOPS
Pipelines 384
Pixel fill rate 13.20 GPixel/s
Texture fill rate 52.80 GTexel/s
Thermal Design Power (TDP) 15 Watt

Games performance

Mafia Definitive Edition (2020)

Low, 1280x72016.10

Valorant (2020)

Low, 1280x72063.30
Medium, 1920x108036.40

Strange Brigade (2018)

Low, 1280x72047.45
Medium, 1920x108019.20
High, 1920x108015.85

Gears Tactics (2020)

Low, 1280x72048.70

Borderlands 3 (2019)

Low, 1280x72017.80
Medium, 1920x10805.77

Counter-Strike: GO (2012)

Low, 1024x76886.60
Medium, 1366x76871.60
High, 1366x76850.60

Total War: Three Kingdoms (2019)

Low, 1280x72027.50

X-Plane 11.11 (2018)

Low, 1280x72032.60
Medium, 1920x108023.95
High, 1920x108022.30

Final Fantasy XV Benchmark (2018)

Low, 1280x72019.20
Medium, 1920x108015.25
High, 1920x108013.50

Dota 2 Reborn (2015)

Low, 1280x72075.90
Medium, 1366x76836.40
High, 1920x108023.30
Ultra, 1920x108021.40

The Witcher 3 (2015)

Low, 1024x76838.55
Medium, 1366x76827.80
High, 1920x108014.70
Ultra, 1920x10809.00

GTA V (2015)

Low, 1024x76836.70
Medium, 1366x76828.10

BioShock Infinite (2013)

Low, 1280x720141.39
Medium, 1366x76886.96
High, 1366x76873.31
Ultra, 1920x108022.32

Specifications (specs)

Essentials

Architecture codename Tiger Lake
Launch date 11 May 2021
Launch price (MSRP) $450
Place in performance rating 100
Processor Number W-11855M
Series Intel Xeon W Processor
Status Launched
Vertical segment Mobile

Performance

64 bit support
Bus Speed 8 GT/s
L1 cache 480 KB
L2 cache 7.5 MB
L3 cache 18 MB
Manufacturing process technology 10 nm SuperFin
Maximum core temperature 100°C
Maximum frequency 4.90 GHz
Number of cores 6
Number of threads 12

Memory

Max memory channels 2
Maximum memory bandwidth 51.2 GB/s
Maximum memory size 128 GB
Supported memory types Up to 3200 MT/s

Graphics

Device ID 0x9A70
Execution Units 32
Graphics base frequency 350 MHz
Graphics max dynamic frequency 1.45 GHz
Intel® Quick Sync Video
Processor graphics Intel UHD Graphics for 11th Gen Intel Processors

Graphics interfaces

Number of displays supported 4

Graphics image quality

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

Graphics API support

DirectX 12.1
OpenGL 4.6

Compatibility

Configurable TDP-down 35 Watt
Configurable TDP-down Frequency 2.60 GHz
Configurable TDP-up 45 Watt
Configurable TDP-up Frequency 3.20 GHz
Max number of CPUs in a configuration 1
Package Size 50 x 26.5
Sockets supported FCBGA1787

Peripherals

Max number of PCIe lanes 20
PCIe configurations Up to 1x16+1x4, 2x8+1x4, 1x8+3x4

Security & Reliability

Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Mode-based Execute Control (MBE)
Secure Boot

Advanced Technologies

Instruction set extensions Intel SSE4.1, Intel SSE4.2, Intel AVX2, Intel AVX-512
Intel® AES New Instructions
Intel® Flex Memory Access
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Stable Image Platform Program (SIPP)
Intel® Volume Management Device (VMD)
Speed Shift technology
Thermal Monitoring

Virtualization

Intel® Virtualization Technology (VT-x)
Intel® Virtualization Technology for Directed I/O (VT-d)
Intel® VT-x with Extended Page Tables (EPT)