6score
#384 of 555
Overall rank
Core i5-9400
6 cores · 6 threads · up to 4.1 GHz on FCLGA1151.
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Cores
6
Threads
6
Boost
4.1 GHz
L3 cache
9 MB
TDP
65W
Socket
FCLGA1151
Performance breakdown
Gaming6
Productivity6
Single-core6
Multi-core25
Power efficiency5
Lab scores
Performance score6
Cores6
Threads6
Boost clock (GHz)4.1 GHz
Estimated gaming FPS
Paired with a high-end GPU. CPU impact is largest at 1080p.
1080p13 fps
1440p11 fps
4K7 fps
Full specifications
Processor & cores
- Architecture
- Coffee Lake
- Process node
- 14 nm
- Socket
- FCLGA1151
- Release year
- 2019
- Total cores
- 6
- Threads
- 6
- Integrated graphics
- Intel UHD Graphics 630
Clocks & cache
- Base clock
- 2.9 GHz
- Boost clock
- 4.1 GHz
- Multiplier
- 29
- L1 cache
- 384 KB
- L2 cache
- 1.5 MB
- L3 cache
- 9 MB
Memory & platform
- Memory support
- DDR4-2666
- Max capacity
- 128 GB
- Channels
- 2
- Max bandwidth
- 42.671 GB/s
- Base power (TDP)
- 65W
- Max temperature
- 100°C
- PCIe
- PCIe 3.0
- Launch price
- $182
Technologies
- Instruction sets
- SSE4.1, SSE4.2, AVX2
- Extensions
- AES-NI, AVX, VT-x, VT-d
Community Feedback
What Owners Say
Owners praise its solid everyday speed and low heat output. The usual gripe is the lack of hyperthreading, which limits multitasking performance.
Pros
- Six cores handle games easily
- Great for everyday multitasking
- Stays cool with stock cooler
- Works in cheap H310 boards
Cons
- No overclocking support at all
- Only six threads for multitasking
- Locked to slower DDR4 memory
Verdict
Our verdict on the Core i5-9400
A solid six-core Coffee Lake chip for mainstream builds, held back by lacking hyper-threading in a multi-threaded era.
Get it if you need a no-fuss six-core for a basic office PC or light gaming and want something that runs cool and quiet. Skip it if you multitask heavily or edit video, because it lacks hyperthreading and newer chips offer much better performance.
Buy it if…
- You need a solid, no-fuss CPU for a basic office PC.
- You're building a budget gaming rig with a mid-range graphics card.
- You want a reliable upgrade for an older LGA1151 motherboard.
Leaderboard
Its place in the overall top
4.1
103 votes
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