Intel® Xeon® Gold 6256 Processor
Specifications
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Essentials
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Product Collection
2nd Generation Intel® Xeon® Scalable Processors
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Code Name
Products formerly Cascade Lake
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Vertical Segment
Server
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Processor Number
6256
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Lithography
14 nm
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CPU Specifications
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Total Cores
12
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Total Threads
24
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Max Turbo Frequency
4.50 GHz
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Processor Base Frequency
3.60 GHz
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Cache
33 MB
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Max # of UPI Links
3
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TDP
205 W
Supplemental Information
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Marketing Status
Launched
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Launch Date
Q1'20
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Servicing Status
Baseline Servicing
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Embedded Options Available
No
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Product Brief
View now
Memory Specifications
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Max Memory Size (dependent on memory type)
1 TB
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Memory Types
DDR4-2933
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Maximum Memory Speed
2933 MHz
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Max # of Memory Channels
6
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Intel® Optane™ Persistent Memory Supported
Yes
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ECC Memory Supported ‡
Yes
Expansion Options
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Scalability
S4S
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PCI Express Revision
3.0
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Max # of PCI Express Lanes
48
Package Specifications
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Sockets Supported
FCLGA3647
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TCASE
64°C
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Package Size
76.0mm x 56.5mm
Advanced Technologies
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Intel® Deep Learning Boost (Intel® DL Boost) on CPU
Yes
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Intel® Speed Select Technology - Performance Profile
No
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Intel® Speed Select Technology - Base Frequency
No
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Intel® Resource Director Technology (Intel® RDT)
Yes
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Intel® Speed Shift Technology
Yes
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Intel® Turbo Boost Max Technology 3.0 ‡
No
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Intel® Turbo Boost Technology ‡
2.0
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Intel® Hyper-Threading Technology ‡
Yes
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Intel® Transactional Synchronization Extensions
Yes
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Intel® 64 ‡
Yes
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Instruction Set Extensions
Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512
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# of AVX-512 FMA Units
2
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Enhanced Intel SpeedStep® Technology
Yes
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Intel® Volume Management Device (VMD)
Yes
Security & Reliability
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Intel vPro® Eligibility ‡
Intel vPro® Platform
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Intel® AES New Instructions
Yes
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Intel® Trusted Execution Technology ‡
Yes
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Execute Disable Bit ‡
Yes
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Intel® Run Sure Technology
Yes
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Mode-based Execute Control (MBEC)
Yes
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Intel® Virtualization Technology (VT-x) ‡
Yes
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Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes
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Intel® VT-x with Extended Page Tables (EPT) ‡
Yes
Ordering and Compliance
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Ordering and spec information
Trade compliance information
- ECCN 5A992C
- CCATS G077159
- US HTS 8542310001
Compatible Products
Intel® Server System R2000WFR Family
Intel® Server Board S2600ST
Intel® Server Board S2600WFR
Drivers and Software
Description
Type
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Version
Date
All
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Latest Drivers & Software
Name
Intel® Data Center Diagnostic Tool for Intel® Xeon® Processors for Windows*
Intel® Processor Identification Utility - Windows* Version
Intel® Processor Diagnostic Tool
Support
Processor Number
The Intel processor number is just one of several factors—along with processor brand, system configurations, and system-level benchmarks—to be considered when choosing the right processor for your computing needs. Read more about interpreting Intel® processor numbers or Intel® processor numbers for the Data Center.
Lithography
Lithography refers to the semiconductor technology used to manufacture an integrated circuit, and is reported in nanometer (nm), indicative of the size of features built on the semiconductor.
Total Cores
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).
Total Threads
Where applicable, Intel® Hyper-Threading Technology is only available on Performance-cores.
Max Turbo Frequency
Max Turbo Frequency is the maximum single-core frequency at which the processor is capable of operating using Intel® Turbo Boost Technology and, if present, Intel® Turbo Boost Max Technology 3.0 and Intel® Thermal Velocity Boost. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.
For more details regarding the dynamic power and frequency operating range, refer to Performance Proxy Frequently Asked Questions (FAQs) for Intel® Processors.
Processor Base Frequency
Processor Base Frequency describes the rate at which the processor's transistors open and close. The processor base frequency is the operating point where TDP is defined. Frequency is typically measured in gigahertz (GHz), or billion cycles per second.
For more details regarding the dynamic power and frequency operating range, refer to
Cache
CPU Cache is an area of fast memory located on the processor. Intel® Smart Cache refers to the architecture that allows all cores to dynamically share access to the last level cache.
Max # of UPI Links
Intel® Ultra Path Interconnect (UPI) links are a high speed, point-to-point interconnect bus between the processors, delivering increased bandwidth and performance over Intel® QPI.
TDP
Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Refer to Datasheet for thermal solution requirements.
Launch Date
The date the product was first introduced.
Servicing Status
Intel Servicing provides functional and security updates for Intel processors or platforms, typically utilizing the Intel Platform Update (IPU).
See "Changes in Customer Support and Servicing Updates for Select Intel® Processors" for more information on servicing.
Embedded Options Available
“Embedded Options Available” indicates the SKU is typically available for purchase for 7 years from the launch of the first SKU in the Product family and may be available for purchase for a longer period of time under certain circumstances. Intel does not commit or guarantee product Availability or Technical Support by way of roadmap guidance. Intel reserves the right to change roadmaps or discontinue products, software and software support services through standard EOL/PDN processes. Product certification and use condition information can be found in the Production Release Qualification (PRQ) report for this SKU. Contact your Intel representative for details.
Max Memory Size (dependent on memory type)
Max memory size refers to the maximum memory capacity supported by the processor.
Memory Types
Intel® processors come in four different types: Single Channel, Dual Channel, Triple Channel, and Flex Mode. Maximum supported memory speed may be lower when populating multiple DIMMs per channel on products that support multiple memory channels.
Max # of Memory Channels
The number of memory channels refers to the bandwidth operation for real world application.
Intel® Optane™ Persistent Memory Supported
Intel® Optane™ persistent memory is a revolutionary tier of non-volatile memory that sits between memory and storage to provide large, affordable memory capacity that is comparable to DRAM performance. Delivering large system-level memory capacity when combined with traditional DRAM, Intel Optane persistent memory is helping transform critical memory constrained workloads – from cloud, databases, in-memory analytics, virtualization, and content delivery networks.
ECC Memory Supported ‡
ECC Memory Supported indicates processor support for Error-Correcting Code memory. ECC memory is a type of system memory that can detect and correct common kinds of internal data corruption. Note that ECC memory support requires both processor and chipset support.
PCI Express Revision
PCI Express Revision is the supported version of the PCI Express standard. Peripheral Component Interconnect Express (or PCIe) is a high-speed serial computer expansion bus standard for attaching hardware devices to a computer. The different PCI Express versions support different data rates.
Max # of PCI Express Lanes
A PCI Express (PCIe) lane consists of two differential signaling pairs, one for receiving data, one for transmitting data, and is the basic unit of the PCIe bus. Max # of PCI Express Lanes is the total number of supported lanes.
Sockets Supported
The socket is the component that provides the mechanical and electrical connections between the processor and motherboard.
TCASE
Case Temperature is the maximum temperature allowed at the processor Integrated Heat Spreader (IHS).
Intel® Deep Learning Boost (Intel® DL Boost) on CPU
A new set of embedded processor technologies designed to accelerate AI deep learning use cases. It extends Intel AVX-512 with a new Vector Neural Network Instruction (VNNI) that significantly increases deep learning inference performance over previous generations.
Intel® Speed Select Technology - Performance Profile
A capability to configure the processor to run at three distinct operating points.
Intel® Speed Select Technology - Base Frequency
Enables users to increase guaranteed base frequency on certain cores (high priority cores) in exchange for lower base frequency on remaining cores (low priority cores). Improves overall performance by boosting frequency on critical cores.
Intel® Resource Director Technology (Intel® RDT)
Intel® RDT brings new levels of visibility and control over how shared resources such as last-level cache (LLC) and memory bandwidth are used by applications, virtual machines (VMs) and containers.
Intel® Speed Shift Technology
Intel® Speed Shift Technology uses hardware-controlled P-states to deliver dramatically quicker responsiveness with single-threaded, transient (short duration) workloads, such as web browsing, by allowing the processor to more quickly select its best operating frequency and voltage for optimal performance and power efficiency.
Intel® Turbo Boost Max Technology 3.0 ‡
Intel® Turbo Boost Max Technology 3.0 identifies the best performing core(s) on a processor and provides increased performance on those cores through increasing frequency as needed by taking advantage of power and thermal headroom.
Intel® Turbo Boost Technology ‡
Intel® Turbo Boost Technology dynamically increases the processor's frequency as needed by taking advantage of thermal and power headroom to give you a burst of speed when you need it, and increased energy efficiency when you don’t.
Intel® Hyper-Threading Technology ‡
Intel® Hyper-Threading Technology (Intel® HT Technology) delivers two processing threads per physical core. Highly threaded applications can get more work done in parallel, completing tasks sooner.
Intel® Transactional Synchronization Extensions
Intel® Transactional Synchronization Extensions (Intel® TSX) are a set of instructions that add hardware transactional memory support to improve performance of multi-threaded software.
Intel® 64 ‡
Intel® 64 architecture delivers 64-bit computing on server, workstation, desktop and mobile platforms when combined with supporting software.¹ Intel 64 architecture improves performance by allowing systems to address more than 4 GB of both virtual and physical memory.
Instruction Set Extensions
Instruction Set Extensions are additional instructions which can increase performance when the same operations are performed on multiple data objects. These can include SSE (Streaming SIMD Extensions) and AVX (Advanced Vector Extensions).
# of AVX-512 FMA Units
Intel® Advanced Vector Extensions 512 (AVX-512), new instruction set extensions, delivering ultra-wide (512-bit) vector operations capabilities, with up to 2 FMAs (Fused Multiply Add instructions), to accelerate performance for your most demanding computational tasks.
Enhanced Intel SpeedStep® Technology
Enhanced Intel SpeedStep® Technology is an advanced means of enabling high performance while meeting the power-conservation needs of mobile systems. Conventional Intel SpeedStep® Technology switches both voltage and frequency in tandem between high and low levels in response to processor load. Enhanced Intel SpeedStep® Technology builds upon that architecture using design strategies such as Separation between Voltage and Frequency Changes, and Clock Partitioning and Recovery.
Intel® Volume Management Device (VMD)
Intel® Volume Management Device (VMD) provides a common, robust method of hot plug and LED management for NVMe-based solid state drives.
Intel vPro® Eligibility ‡
The Intel vPro® platform is a set of hardware and technologies used to build business computing endpoints with premium performance, built-in security, modern manageability, and platform stability. The launch of 12th Gen Intel® Core™ processors introduced Intel vPro® Enterprise and Intel vPro® Essentials branding.
- Intel vPro® Enterprise: Commercial platform offering the full set of security, manageability, and stability features for any given Intel processor generation, including Intel® Active Management Technology
- Intel vPro® Essentials: Commercial platform offering a subset of Intel vPro® Enterprise features, including Intel® Hardware Shield and Intel® Standard Manageability
Intel® AES New Instructions
Intel® AES New Instructions (Intel® AES-NI) are a set of instructions that enable fast and secure data encryption and decryption. AES-NI are valuable for a wide range of cryptographic applications, for example: applications that perform bulk encryption/decryption, authentication, random number generation, and authenticated encryption.
Intel® Trusted Execution Technology ‡
Intel® Trusted Execution Technology for safer computing is a versatile set of hardware extensions to Intel® processors and chipsets that enhance the digital office platform with security capabilities such as measured launch and protected execution. It enables an environment where applications can run within their own space, protected from all other software on the system.
Execute Disable Bit ‡
Execute Disable Bit is a hardware-based security feature that can reduce exposure to viruses and malicious-code attacks and prevent harmful software from executing and propagating on the server or network.
Intel® Run Sure Technology
Intel® Run Sure Technology, includes advanced RAS (reliability, availability and serviceability) features that deliver high reliability and platform resiliency, to maximize uptime of servers running mission-critical workloads.
Mode-based Execute Control (MBEC)
Mode-based Execute Control can more reliably verify and enforce the integrity of kernel level code.
Intel® Virtualization Technology (VT-x) ‡
Intel® Virtualization Technology (VT-x) allows one hardware platform to function as multiple “virtual” platforms. It offers improved manageability by limiting downtime and maintaining productivity by isolating computing activities into separate partitions.
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Intel® Virtualization Technology for Directed I/O (VT-d) continues from the existing support for IA-32 (VT-x) and Itanium® processor (VT-i) virtualization adding new support for I/O-device virtualization. Intel VT-d can help end users improve security and reliability of the systems and also improve performance of I/O devices in virtualized environments.
Intel® VT-x with Extended Page Tables (EPT) ‡
Intel® VT-x with Extended Page Tables (EPT), also known as Second Level Address Translation (SLAT), provides acceleration for memory intensive virtualized applications. Extended Page Tables in Intel® Virtualization Technology platforms reduces the memory and power overhead costs and increases battery life through hardware optimization of page table management.
Tray Processor
Intel ships these processors to Original Equipment Manufacturers (OEMs), and the OEMs typically pre-install the processor. Intel refers to these processors as tray or OEM processors. Intel doesn't provide direct warranty support. Contact your OEM or reseller for warranty support.
All information provided is subject to change at any time, without notice. Intel may make changes to manufacturing life cycle, specifications, and product descriptions at any time, without notice. The information herein is provided "as-is" and Intel does not make any representations or warranties whatsoever regarding accuracy of the information, nor on the product features, availability, functionality, or compatibility of the products listed. Please contact system vendor for more information on specific products or systems.
Intel classifications are for general, educational and planning purposes only and consist of Export Control Classification Numbers (ECCN) and Harmonized Tariff Schedule (HTS) numbers. Any use made of Intel classifications are without recourse to Intel and shall not be construed as a representation or warranty regarding the proper ECCN or HTS. Your company as an importer and/or exporter is responsible for determining the correct classification of your transaction.
Refer to Datasheet for formal definitions of product properties and features.
‡ This feature may not be available on all computing systems. Please check with the system vendor to determine if your system delivers this feature, or reference the system specifications (motherboard, processor, chipset, power supply, HDD, graphics controller, memory, BIOS, drivers, virtual machine monitor-VMM, platform software, and/or operating system) for feature compatibility. Functionality, performance, and other benefits of this feature may vary depending on system configuration.
Some products can support AES New Instructions with a Processor Configuration update, in particular, i7-2630QM/i7-2635QM, i7-2670QM/i7-2675QM, i5-2430M/i5-2435M, i5-2410M/i5-2415M. Please contact OEM for the BIOS that includes the latest Processor configuration update.
“Announced” SKUs are not yet available. Please refer to the Launch Date for market availability.
Intel processor numbers are not a measure of performance. Processor numbers differentiate features within each processor family, not across different processor families. See http://www.intel.com/content/www/us/en/processors/processor-numbers.html for details.
See http://www.intel.com/content/www/us/en/architecture-and-technology/hyper-threading/hyper-threading-technology.html?wapkw=hyper+threading for more information including details on which processors support Intel® HT Technology.
Max Turbo Frequency refers to the maximum single-core processor frequency that can be achieved with Intel® Turbo Boost Technology. See www.intel.com/technology/turboboost/ for more information and applicability of this technology.
Processors that support 64-bit computing on Intel® architecture require an Intel 64 architecture-enabled BIOS.
System and Maximum TDP is based on worst case scenarios. Actual TDP may be lower if not all I/Os for chipsets are used.