Intel Core i5-8400T Desktop Processor — 9M Cache | Up to 3.30 GHz | LGA1151 | 8th Gen Coffee Lake | 35W TDP | Pulled | 1-Year Warranty

The pulled Intel Core i5-8400T is built for compact system builders, SFF and Mini-ITX enthusiasts, HTPC builders, always-on home and office users, and IT administrators deploying thermally constrained LGA1151 v2 desktop systems where power efficiency, quiet operation, and capable 6-core everyday performance are the priorities. At just 35W TDP with 6 physical cores, it is ideally suited for mini-ITX and SFF builds, always-on home and office desktops, 4K home theatre PCs, small corporate deployments, retail terminals, and any build where a quiet, cool, low-power 6-core processor is essential.

The Core i5-8400T features 6 physical cores and 6 threads — without Hyper-Threading — with Intel Turbo Boost 2.0 boosting from a 1.70 GHz base up to 3.30 GHz under demand, all within a 35W TDP. The low 1.70 GHz base frequency is characteristic of the T-series design for sustained low-power operation; under typical desktop workloads, Turbo Boost elevates performance significantly above the base. A configurable TDP-down of 25W at 1.20 GHz enables deployment in fanless, passively cooled, or extremely thermally constrained chassis. The 14nm++ Coffee Lake process and 9MB Smart Cache match the i5-8400's cache complement while operating at dramatically lower power. Integrated Intel UHD Graphics 630 with up to 1.05 GHz dynamic frequency supports 4K@60Hz via DisplayPort and eDP, DirectX 12, OpenGL 4.5, and hardware H.265/HEVC and AV-1 adjacent decode for smooth 4K streaming and multimedia. DDR4-2666 dual-channel support up to 128GB at 41.6 GB/s provides the highest memory capacity headroom across all LGA1151 T-series processors in this lineup. Intel AES-NI, Secure Key, VT-x, VT-d, VT-x with EPT, SGX, MPX, OS Guard, Boot Guard, and Execute Disable Bit provide comprehensive security. Intel Optane Memory support enables storage acceleration on compatible H370 and Z370 platforms. Each pulled unit has been individually cleaned and tested for full operational functionality before dispatch.

Processor Number: i5-8400T
Generation: 8th Gen Intel Core (Coffee Lake)
Architecture: Coffee Lake (14nm++)
Cores / Threads: 6 Cores / 6 Threads (no Hyper-Threading)
Processor Base Frequency: 1.70 GHz
Max Turbo Frequency: Up to 3.30 GHz (Turbo Boost 2.0)
Configurable TDP-down: 25W (1.20 GHz base)
Cache: 9MB Intel Smart Cache
Bus Speed: 8 GT/s (DMI3)
TDP: 35W
TJUNCTION: 100°C
Package Size: 37.5 × 37.5mm
Integrated Graphics: Intel UHD Graphics 630 (350 MHz base / 1.05 GHz max dynamic)
4K Support: Yes (@ 60Hz via DP and eDP)
Max Resolution (HDMI): 4096×2304 @ 24Hz
Max Resolution (DP): 4096×2304 @ 60Hz
Max Resolution (eDP): 4096×2304 @ 60Hz
DirectX: 12 | OpenGL: 4.5
Max Displays Supported: 3
Memory Support: DDR4-2666 (dual channel, up to 128GB)
ECC Memory: Not Supported
Max Memory Bandwidth: 41.6 GB/s
PCIe Support: PCIe 3.0 (up to 16 lanes — 1×16, 2×8, or 1×8+2×4)
Socket: FCLGA1151 (LGA1151 v2 — 300 Series chipsets only)
Instruction Set Extensions: Intel SSE4.1, SSE4.2, AVX2
Technologies: Intel Turbo Boost 2.0, Intel UHD Graphics 630, Intel Quick Sync Video, Intel InTru 3D, Intel Clear Video HD, Enhanced SpeedStep, Intel Identity Protection Technology, Intel Optane Memory Support
Security: Intel AES-NI, Secure Key, Intel VT-x, Intel VT-d, Intel VT-x with EPT, Intel SGX (with ME), Intel MPX, Intel OS Guard, Intel Boot Guard, Execute Disable Bit
Intel Hyper-Threading: Not Supported
Intel TXT: Not Supported
Launch Date: Q2 2018
Marketing Status: Discontinued
Condition: Pulled (individually tested and verified)

System Requirements: Compatible with LGA1151 v2 socket motherboards on Intel 300 Series chipsets only (H310, B360, H370, Z370, Z390) — NOT compatible with 100 Series or 200 Series chipsets; DDR4 memory required (DDR3L not supported on 300 Series); BIOS update may be required on some 300 Series boards; multiplier is locked — overclocking not supported; cTDP-down to 25W supported via BIOS on compatible platforms; bundled cooler may or may not be included — verify before purchase; critical — LGA1151 v2 (300 Series) is physically identical but electrically incompatible with LGA1151 v1 (100/200 Series) — always verify 300 Series chipset compatibility before purchase

Setup: Standard LGA1151 v2 socket installation; Turbo Boost activates automatically under load — note that the 1.70 GHz base frequency applies only under sustained all-core maximum power scenarios; cTDP configurable to 25W for fanless or passively cooled builds via BIOS; Intel UHD Graphics 630 drives up to 3 displays including 4K@60Hz via DP; thermal paste application recommended if bundled cooler is not included

Mounting Options: Standard LGA1151 v2 socket; ideal for mini-ITX, Micro-ATX, and ATX motherboards with LGA1151 300 Series socket; 35W TDP compatible with slim, low-profile, and quiet coolers

Usage Environment: Ideal for compact SFF and Mini-ITX desktop builds, 4K HTPC home theatre systems, always-on home and office desktops, quiet workstations, small corporate deployments, and cost-efficient low-power 8th Gen Intel Coffee Lake 6-core platform builds

Condition Note: This is a pulled unit — individually cleaned and tested for full operational functionality. External appearance may show minor cosmetic signs of prior use. Functional performance is fully verified.