• Product Collection8th Generation Intel® Core™ i5 Processors
• Code NameProducts formerly Coffee Lake
• Vertical SegmentDesktop
• Processor Numberi5-8400
• StatusLaunched
• Launch DateQ4'17
• Lithography14 nm

• # of Cores6
• # of Threads6
• Processor Base Frequency2.80 GHz
• Max Turbo Frequency4.00 GHz
• Cache9 MB
• Bus Speed8 GT/s DMI3
• TDP65 W

Memory Specifications
Max Memory Size (dependent on memory type)
64 GB
Memory Types
DDR4-2666
Max # of Memory Channels
2
ECC Memory Supported ‡
No
Processor Graphics
Processor Graphics ‡
Intel® UHD Graphics 630
Graphics Base Frequency
350 MHz
Graphics Max Dynamic Frequency
1.05 GHz
Graphics Video Max Memory
64 GB
4K Support
Yes, at 60Hz
Max Resolution (HDMI 1.4)‡
4096x2304@24Hz
Max Resolution (DP)‡
4096x2304@60Hz
Max Resolution (eDP - Integrated Flat Panel)‡
4096x2304@60Hz
DirectX* Support
12
OpenGL* Support
4.5
Intel® Quick Sync Video
Yes
Intel® InTru™ 3D Technology
Yes
Intel® Clear Video HD Technology
Yes
Intel® Clear Video Technology
Yes
# of Displays Supported ‡
3
Device ID
0x3E92
Expansion Options
Scalability
1S Only
PCI Express Revision
3.0
PCI Express Configurations ‡
Up to 1x16, 2x8, 1x8+2x4
Max # of PCI Express Lanes
16
Package Specifications
Sockets Supported
FCLGA1151
Max CPU Configuration
1
Thermal Solution Specification
PCG 2015C (65W)
TJUNCTION
100°C
Package Size
37.5mm x 37.5mm
Low Halogen Options Available
See MDDS
Advanced Technologies
Intel® Optane™ Memory Supported ‡
Yes
Intel® Turbo Boost Technology ‡
2.0
Intel® vPro™ Technology ‡
No
Intel® Hyper-Threading Technology ‡
No
Intel® Virtualization Technology (VT-x) ‡
Yes
Intel® Virtualization Technology for Directed I/O (VT-d) ‡
Yes
Intel® VT-x with Extended Page Tables (EPT) ‡
Yes
Intel® TSX-NI
No
Intel® 64 ‡
Yes
Instruction Set
64-bit
Instruction Set Extensions
Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2
Idle States
Yes
Enhanced Intel SpeedStep® Technology
Yes
Thermal Monitoring Technologies
Yes
Intel® Identity Protection Technology ‡
Yes
Intel® Stable Image Platform Program (SIPP)
No
Security & Reliability
Intel® AES New Instructions
Yes
Secure Key
Yes
Intel® Software Guard Extensions (Intel® SGX)
Yes
Intel® Memory Protection Extensions (Intel® MPX)
Yes
Intel® OS Guard
Yes
Intel® Trusted Execution Technology ‡
No
Execute Disable Bit ‡
Yes
Intel® Boot Guard
Yes