Intel Core i5-10400 Processor

The Intel Core i5-10400 Processor — 6 cores and 12 threads, 2.9 GHz base rising to 4.3 GHz with Turbo Boost, 12 MB Intel Smart Cache, 65 W processor base power, LGA1200. Supplied from stock with a 1-year warranty.

Hyper-Threading returns to the i5

The i5-10400 brought Hyper-Threading back to the mainstream i5 line: six cores and twelve threads at 2.90 GHz with a 4.30 GHz Turbo, 12 MB of cache, 65 W, launched Q2 2020 on Comet Lake and the new LGA1200 socket. (The ancient LGA1156 i5-750 excepted, no mainstream i5 had shipped with twelve threads before.)

The twelve threads changed the character of the part: multi-user terminals, small virtualization hosts and heavy browser sessions stopped being the i5’s weak spot. Intel UHD Graphics 630 with Quick Sync covers display and video decode, and the 65 W envelope suits the standard OEM coolers of the G6-era corporate chassis.

Technical specifications

Instruction set extensions: Intel SSE4.1, SSE4.2, AVX and AVX2. Security and virtualisation: AES-NI, Intel VT-x with EPT and VT-d.

Which systems take this processor

Anything on the LGA1200 socket with an Intel 400 or 500 series chipset: H410, B460, H470, Q470, Z490, W480, H510, B560 and Z590. 10th Generation Core parts run on both chipset generations out of the box.

• Business desktops and SFF machines — Dell OptiPlex 3080 / 5080 / 7080, HP EliteDesk 800 G6 / ProDesk 600 G6, Lenovo ThinkCentre M70t / M90t. The 65 W envelope is what these chassis were designed around.
• Entry workstations — HP Z1 G6, Dell Precision 3640, Lenovo ThinkStation P340, where six cores with Hyper-Threading cover office, CAD and light simulation work.
• Micro-server and NAS builds — W480 and Q470 boards accept Core i5 parts with ECC UDIMMs, and the integrated graphics keeps the platform usable without a discrete card.

One caveat when buying a board separately: 400 series boards may need a BIOS update before they recognise a later 10th Generation stepping. Tell us the board or the machine model when you enquire and we will confirm before you order.

How it compares across the i5 line

The 10400F removes the iGPU at a lower price for builds with a discrete card. The 11400 is the Rocket Lake successor: 100 MHz more Turbo, PCIe 4.0 and a newer graphics engine on the same socket.

How each processor is tested before it ships

1. Visual inspection of the integrated heat spreader, substrate and contact pads; the sSpec laser marking (SRH3C/SRH78 on our i5-10400 stock) is verified against the Intel specification sheet.
2. Burn-in on a matched diagnostic board with a pair of memory modules of the correct type for this platform.
3. All populated memory channels and the primary PCIe lanes are validated, then the processor is identified in the BIOS and in the operating system.
4. A sustained multi-threaded load test at full core count, with the clock and thermal readings recorded.
5. Thermal paste cleaned off, final inspection, then packaging in an anti-static tray with foam — which is how it arrives to you.

Warranty and lead time

Every processor is covered by a 1-year warranty against defects in workmanship and function. If a part fails within the period we replace it or refund it, and we cover return shipping on a verified fault. Stock is held in our own warehouse and normally dispatches within three to seven working days; tracking is issued at dispatch.

Purchasing and volume enquiries

The minimum order quantity for this processor is 2 units. Price is quotation-based rather than listed, because CPU pricing moves with each incoming batch — send us the quantity you need and we will come back with a firm quote and the current lead time. Larger quantities ship from the same production batch so the sSpec and the stepping stay consistent across your order.