Basics
Product collection 2nd Gen Intel® Xeon® Scalable Processors
Codename Products formerly Cascade Lake
Vertical segment Server
Processor number 6256
Lithography 14 nm
Processor Specifications
Total cores 12
Total threads 24
Maximum turbo frequency 4.50 GHz
Base CPU frequency 3.60 GHz
Cache 33 MB
Maximum number of UPI links 3
TDP 205 W
Additional info
Marketing status Discontinued
Launch date Q1'20
Service status ESU Notification Issued
Update service end date Monday, June 30, 2025
Built-in options available No
Memory Specifications
Maximum memory capacity (depends on memory type) 1 TB
Memory types DDR4-2933
Maximum memory speed 2933 MHz
Maximum number of memory channels 6
Intel persistent memory supported® Optane™ Yes
ECC memory supported ‡ Yes
Expansion options
Scalability S4S
PCI Express version 3.0
Maximum number of PCI Express lanes 48
Packaging Specifications
Supported sockets FCLGA3647
TCASE 64°C
Parcel size 76.0mm x 56.5mm
Hi-tech
Intel® Deep Learning Boost (Intel® DL Boost) on the CPU Yes
Intel Technology® Speed Select — performance profile No
Intel Technology® Speed Select — base frequency No
Intel Technology® Resource Director (Intel® RDT) Yes
Intel Technology® Speed Shift Yes
Intel Technology® Turbo Boost Max 3.0 ‡ No
Intel Technology® Turbo Boost ‡ 2.0
Intel Technology® Hyper-Threading ‡ Yes
Intel extensions® for transaction synchronization Yes
Intel® 64 ‡ Yes
Command Set Extensions Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
Number of AVX-512 FMA units 2
Advanced Intel SpeedStep Technology® Yes
Intel Volume Manager® (VMD) Yes
Safety and reliability
Eligibility for the Intel vPro Program® ‡ Intel vPro® Platform
New Intel instructions® AES Yes
Intel Technology® Trusted Execution ‡ Yes
Execute shutdown bit ‡ Yes
Intel Technology® Run Sure Yes
Mode Based Execution Control (MBEC) Yes
Intel Virtualization Technology® (VT-x) ‡ Yes
Intel Virtualization Technology® for directional I/O (VT-d) ‡ Yes
Intel® VT-x with extended page tables (EPT) ‡ Yes