6score
#387 of 555
Overall rank
Core i5-8400
6 cores · 6 threads · up to 4.0 GHz on FCLGA1151.
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Cores
6
Threads
6
Boost
4.0 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)4.0 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-S
- Process node
- 14 nm
- Socket
- FCLGA1151
- Release year
- 2017
- Total cores
- 6
- Threads
- 6
- Integrated graphics
- Intel UHD Graphics 630
Clocks & cache
- Base clock
- 2.8 GHz
- Boost clock
- 4.0 GHz
- Multiplier
- 28
- L1 cache
- 384 KB
- L2 cache
- 1.5 MB
- L3 cache
- 9 MB
Memory & platform
- Memory support
- DDR3
- Max capacity
- 64 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, AMD-V, VT-x, VT-d
Community Feedback
What Owners Say
Owners say it’s a solid, affordable workhorse for mid-range gaming and daily tasks. The main gripe is that it’s locked, so no overclocking fun.
Pros
- Plays recent games without stuttering
- Six real cores for multitasking
- Runs cool on stock cooling
- Handles daily tasks effortlessly
Cons
- No real overclocking support
- Locked to slower DDR4 memory
- Only six threads for multitasking
Verdict
Our verdict on the Core i5-8400
A six-core midrange CPU that still holds up well for everyday gaming, though its locked multiplier limits upgrade potential.
Get it if you want a reliable, cool-running six-core for a budget gaming build or office PC that doesn't need hyper-threading. Skip it if you edit video or stream, where a newer chip with more threads will save you headaches.
Buy it if…
- You are building a solid budget gaming rig and want no fuss.
- You need a reliable office PC that handles everyday tasks without drama.
- You are upgrading an older socket 1151 system on a tight budget.
Leaderboard
Its place in the overall top
3.8
247 votes
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