Intel Xeon W-2255 processor review

Xeon W-2255 processor released by Intel; release date: 7 Oct 2019. At the time of release, the processor cost $778. The processor is designed for workstation-computers and based on Cascade Lake microarchitecture.

CPU is locked to prevent overclocking. Total number of cores - 10, threads - 20. Maximum CPU clock speed - 4.50 GHz. Maximum operating temperature - 62°C. Manufacturing process technology - 14 nm. Cache size: L1 - 640 KB, L2 - 10 MB, L3 - 19.25 MB.

Supported memory types: DDR4 2933. Maximum memory size: 1 TB.

Supported socket types: FCLGA2066. Maximum number of processors in a configuration - 1. Power consumption (TDP): 165 Watt.


Single thread mark
Top 1 CPU
This CPU
CPU mark
Top 1 CPU
This CPU
Name Value
PassMark - Single thread mark 2763
PassMark - CPU mark 22680

Specifications (specs)


Architecture codename Cascade Lake
Launch date 7 Oct 2019
Launch price (MSRP) $778
Place in performance rating 147
Processor Number W-2255
Series Intel Xeon W Processor
Status Launched
Vertical segment Workstation


64 bit support
Base frequency 3.70 GHz
Bus Speed 8 GT/s
L1 cache 640 KB
L2 cache 10 MB
L3 cache 19.25 MB
Manufacturing process technology 14 nm
Maximum core temperature 62°C
Maximum frequency 4.50 GHz
Number of cores 10
Number of QPI Links 0
Number of threads 20
Number of Ultra Path Interconnect (UPI) Links 0


Max memory channels 4
Maximum memory bandwidth 93.85 GB/s
Maximum memory size 1 TB
Supported memory types DDR4 2933


Max number of CPUs in a configuration 1
Package Size 45mm x 52.5mm
Sockets supported FCLGA2066
Thermal Design Power (TDP) 165 Watt


Max number of PCIe lanes 48
PCI Express revision 3.0
PCIe configurations x4, x8, x16
Scalability 1S Only

Security & Reliability

Execute Disable Bit (EDB)
Intel® Identity Protection technology
Intel® Memory Protection Extensions (Intel® MPX)
Intel® OS Guard
Intel® Secure Key technology
Intel® Software Guard Extensions (Intel® SGX)
Intel® Trusted Execution technology (TXT)
Secure Boot

Advanced Technologies

Enhanced Intel SpeedStep® technology
Idle States
Instruction set extensions Intel SSE4.2, Intel AVX, Intel AVX2, Intel AVX-512
Intel 64
Intel® AES New Instructions
Intel® Demand Based Switching
Intel® Hyper-Threading technology
Intel® Optane™ Memory Supported
Intel® Turbo Boost technology
Intel® Volume Management Device (VMD)
Intel® vPro™ Platform Eligibility
Number of AVX-512 FMA Units 2
Physical Address Extensions (PAE) 46-bit
Speed Shift technology
Thermal Monitoring


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