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  • Intel® Core™ i5 i5-6400 2.7 GHz
  • 6 MB Smart Cache LGA 1151 (Socket H4)
  • Processor cores: 4 14 nm 64-bit 65 W
  • Maximum internal memory supported by processor: 64 GB DDR4-SDRAM, DDR3L-SDRAM
  • On-board graphics card Intel® HD Graphics 530
  • Tray

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.

of Cores
Cores is a hardware term that describes the number of independent central processing units in a single computing component (die or chip).

of Threads
A Thread, or thread of execution, is a software term for the basic ordered sequence of instructions that can be passed through or processed by a single CPU core.

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.

Processor Graphics
Processor Graphics indicates graphics processing circuitry integrated into the processor, providing the graphics, compute, media, and display capabilities. Intel® HD Graphics, Iris™ Graphics, Iris Plus Graphics, and Iris Pro Graphics deliver enhanced media conversion, fast frame rates, and 4K Ultra HD (UHD) video. See the Intel® Graphics Technology page for more information.

4K Support
4K support indicates the product's support of 4K resolution, defined here as minimum 3840 x 2160.

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® 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.

Instruction Set
An instruction set refers to the basic set of commands and instructions that a microprocessor understands and can carry out. The value shown represents which Intel’s instruction set this processor is compatible with.

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.

Secure Key
Intel® Secure Key consists of a digital random number generator that creates truly random numbers to strengthen encryption algorithms.

Intel® Software Guard Extensions (Intel® SGX)
Intel® Software Guard Extensions (Intel® SGX) provide applications the ability to create hardware enforced trusted execution protection for their applications’ sensitive routines and data. Run-time execution is protected from observation or tampering by any other software (including privileged software) in a system.

Intel® Memory Protection Extensions (Intel® MPX)
Intel® Memory Protection Extensions (Intel® MPX) provides a set of hardware features that can be used by software in conjunction with compiler changes to check that memory references intended at compile time do not become unsafe at runtime due to buffer overflow or underflow.

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® Device Protection Technology with Boot Guard
Intel® Device Protection Technology with Boot Guard helps protect the system’s pre-OS environment from viruses and malicious software attacks.

Processor
Processor manufacturer Intel
Processor family Intel® Core™ i5
Processor generation 6th gen Intel® Core™ i5
Processor model i5-6400
Processor base frequency 2.7 GHz
Processor cores 4
Processor socket LGA 1151 (Socket H4)
Processor lithography 14 nm
Cooler included No
Component for PC
Processor series Intel Core i5-6400 Desktop series
Processor threads 4
System bus rate 8 GT/s
Processor operating modes 64-bit
Processor boost frequency 3.3 GHz
Processor cache 6 MB
Processor cache type Smart Cache
Thermal Design Power (TDP) 65 W
Stepping R0
Bus type DMI3
Memory bandwidth supported by processor (max) 34.1 GB/s
Processor codename Skylake
Processor ARK ID 88185
Generation 6th Generation
Memory
Maximum internal memory supported by processor 64 GB
Memory types supported by processor DDR4-SDRAM, DDR3L-SDRAM
Memory clock speeds supported by processor 1333,1600,1866,2133 MHz
Memory voltage supported by processor 1.35 V
Memory channels Dual-channel
ECC No
Graphics
On-board graphics card Yes
On-board graphics card model Intel® HD Graphics 530
Maximum on-board graphics card memory 64 GB
On-board graphics card outputs supported Embedded DisplayPort (eDP), DisplayPort, HDMI, DVI
On-board graphics card base frequency 350 MHz
On-board graphics card dynamic frequency (max) 950 MHz
Number of displays supported (on-board graphics) 3
On-board graphics card 4K support Yes
On-board graphics card OpenGL version 4.5
On-board graphics card DirectX version 12.0
On-board graphics card maximum resolution (HDMI) 4096 x 2304 pixels
On-board graphics card maximum resolution (eDP - Integrated Flat Panel) 4096 x 2304 pixels
On-board graphics card maximum resolution (DisplayPort) 4096 x 2304 pixels
On-board graphics card refresh rate at maximum resolution (HDMI) 24 Hz
On-board graphics card refresh rate at maximum resolution (eDP - Integrated Flat Panel) 60 Hz
On-board graphics card refresh rate at maximum resolution (DisplayPort) 60 Hz
On-board graphics card ID 0x1912
Features
Thermal Monitoring Technologies Yes
Idle States Yes
Execute Disable Bit Yes
Market segment Desktop
Maximum number of PCI Express lanes 16
PCI Express slots version 3.0
PCI Express configurations 1x16, 2x8, 1x8+2x4
Supported instruction sets SSE4.1, SSE4.2, AVX 2.0
Thermal solution specification PCG 2015C
Graphics & IMC lithography 14 nm
CPU configuration (max) 1
PCI Express CEM revision 3.0
Embedded options available No
Scalability 1S
Export Control Classification Number (ECCN) 5A992C
Commodity Classification Automated Tracking System (CCATS) G077159
Processor special features
Intel® Insider™ Yes
Intel® Wireless Display (Intel® WiDi) Yes
Intel® Memory Protection Extensions (Intel® MPX) Yes
Intel® Clear Video HD Technology (Intel® CVT HD) Yes
Intel® InTru™ 3D Technology Yes
Intel® Quick Sync Video Technology Yes
Intel® Identity Protection Technology (Intel® IPT) Yes
Enhanced Intel SpeedStep Technology Yes
Intel Trusted Execution Technology No
Intel® AES New Instructions (Intel® AES-NI) Yes
Intel® Turbo Boost Technology 2.0
Intel® Hyper Threading Technology (Intel® HT Technology) No
Intel® Turbo Boost Technology 2.0 frequency 3.3 GHz
Intel® Transactional Synchronization Extensions No
Intel Small Business Advantage (SBA) version 1.00
Intel Stable Image Platform Program (SIPP) version 0.00
Intel Secure Key Technology version 1.00
Intel Identity Protection Technology version 1.00
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID) Yes
Intel Stable Image Platform Program (SIPP) No
Intel Clear Video Technology Yes
Intel® Boot Guard Yes
Conflict-Free processor Yes
Intel TSX-NI version 0.00
Intel Enhanced Halt State Yes
Intel® OS Guard Yes
Intel® Secure Key Yes
Intel® vPro™ Platform Eligibility No
Intel® Optane™ Memory Ready No
Intel TSX-NI No
Intel Virtualization Technology for Directed I/O (VT-d) Yes
Intel Virtualization Technology (VT-x) Yes
Intel 64 Yes
Intel Software Guard Extensions (Intel SGX) Yes
Intel VT-x with Extended Page Tables (EPT) Yes
General
Product series i5
Product family Core
Operational conditions
Tcase 71 °C
Packaging data
Package type Tray
Logistics data
Harmonized System (HS) code 8542310001
Technical details
Processor cache 6144 KB
Maximum graphics card memory 64 GB
Product type Processor
Supported memory types DDR4-SDRAM, DDR3L-SDRAM
Maximum resolution (WiDi) 1080p
Number of graphics cores 2
Maximum resolution & refresh rate (VGA) N/A
Product family 6th Generation Intel Core i5 Processors
Last change 63903513
Processor brand name Intel Core i5
Intel Core i5 Processor
Maximum resolution & refresh rate (Integrated Flat Panel) 4096x2304@60Hz
Maximum resolution & refresh rate (HDMI) 4096x2304@24Hz
Bus type units GT/s
Bus bandwidth 8
Processor ID 0x1912
Bus speed 8 GT/s
Maximum memory 64 GB
Maximum resolution & refresh rate (DisplayPort) 4096x2304@60Hz
Status Discontinued
Launch date Q3'15
Weight & dimensions
Processor package size 37.5 x 37.5 mm
Other features
Video decoding Yes
Maximum internal memory 65536 MB
Graphics output eDP/DP/HDMI/DVI