Core i5-9400
The Core i5-9400 is Intel’s 6-core, 6-thread processor for the LGA1151 platform, built on the Coffee Lake architecture. Below you’ll find its full spec sheet and gaming and Cinebench 2024 productivity benchmarks, plus every retailer’s current price.
Prices update regularly and may differ at the retailer. This page contains affiliate links.
Gaming & productivity performance
Gaming score: CPU-bound 1080p rating, normalized to 100. Cinebench 2024: multi- and single-core points.
1080p Gaming
Cinebench Multi
Cinebench Single
The Core i5-9400 scores 35.5 on our 0–100 CPU gaming scale.
Performance-per-dollar rank among all CPUs with live pricing
Gaming value
#34
of 134
Productivity value
—
Specifications
Cores & Clocks
- Cores / Threads
- 6 / 6
- Base clock
- 2.9 GHz
- Boost clock
- 4.1 GHz
- Architecture
- Coffee Lake
Cache & Process
- L3 cache
- 9 MB
- L2 cache
- 1.5 MB
- Process node
- Intel 14nm
- Released
- 2019-01-30
Memory & Platform
- Socket
- LGA1151
- Memory channels
- 2
- Max memory
- 128 GB
- Memory support
- DDR4, 2666
- Chipsets
- Z370, H310, B360, H370, Q370, Z390, B365
- PCIe
- PCIe 3.0
- ECC support
- No
Power & Extras
- TDP
- 65W
- Max power
- 180W
- Integrated graphics
- Intel UHD 630
- Stock cooler
- E97379-003
- MSRP
- $182.00
The Core i5-9400 pairs 6 cores with 9 MB of L3 cache on the Intel 14nm process. Compare the Core i5-9400 against the full CPU lineup on the CPU comparison table, or build a compatible system around it with the PC Builder.
Where to buy the Core i5-9400
Every in-stock retailer offer we track, cheapest first.
| Retailer | Availability | Price | Buy |
|---|---|---|---|
| Amazon | — | See on Amazon |  |
The Core i5-9400 starts from $129.57 across 1 retailer. Prices update daily from live stock.
Complete the build
The cheapest in-stock parts that actually fit the Core i5-9400 — matched on socket and power delivery using the same rules as our PC Builder, priced live.
The Core i5-9400's bundled E97379-003 can't keep up with its sustained power draw, so an aftermarket cooler is the safer buy. This is the cheapest air cooler in stock that fits LGA1151 and handles its heat.
Contains affiliate links. Prices update regularly and may differ at the retailer.
How the Core i5-9400 compares
Similar CPUs worth a look, based on live prices and 1080p gaming performance.
Matches or beats the Core i5-9400 in 1080p gaming and 19% cheaper ($24.58) — a clear win.
4-core · from $104.99
About 25% more 1080p gaming performance, for 32% more ($41.23).
6-core · from $170.80
AMD's closest match — within 9% on 1080p gaming, 38% cheaper ($49.58).
6-core · from $79.99
Affiliate disclosure: Some links on this page are affiliate links — MaxMyBuild may earn a commission at no extra cost to you if you buy through them. As an Amazon Associate, MaxMyBuild earns from qualifying purchases. For Amazon, current price and availability are shown on the Amazon product page; product prices and availability are accurate as of the date and time of purchase and are subject to change. Prices shown for other retailers are approximate and may differ at checkout. “Search” links are non-affiliate and provided for convenience only.