English 
- Brand: Intel
- Model: i5-9400
- Essentials
- Product Collection
- 9th Generation Intel® Core™ i5 Processors
- Code Name
- Products formerly Coffee Lake
- Vertical Segment: Desktop
- Processor Number: i5-9400
- Status: Launched
- Launch Date: Q1'19
- Lithography: 14 nm
- Use Conditions: PC/Client/Tablet
- CPU Specifications of Cores: 6
- of Threads: 6
- Processor Base Frequency: 2.90 GHz
- Max Turbo Frequency: 4.10 GHz
- Cache: 9 MB Intel® Smart Cache
- Bus Speed: 8 GT/s
- Intel® Turbo Boost Technology 2.0 Frequency: 4.10 GHz
- TDP: 65 W
- Supplemental Information
- Embedded Options Available: No
- Description: View now
- Datasheet: View now
- Memory Specifications
- Max Memory Size (dependent on memory type): 128 GB
- Memory Types: DDR4-2666
- Max of Memory Channels: 2
- Max Memory Bandwidth: 41.6 GB/s
- 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): 4096 x 2304@24Hz
- Max Resolution (DP): 4096 x 2304@60Hz
- Max Resolution (eDP - Integrated Flat Panel): 4096 x 2304@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: 0X3E98/x92
- 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
- Advanced Technologies
- Intel® Optane™ Memory Supported: Yes
- Intel® Turbo Boost Technology: 2.0
- Intel vPro® Platform Eligibility: 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® Transactional Synchronization Extensions: 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 with Intel® ME
- Intel® Memory Protection Extensions (Intel® MPX): Yes
- Intel® OS Guard: Yes
- Intel® Trusted Execution Technology: No
- Execute Disable Bit: Yes
- Intel® Boot Guard: Yes