10th Gen Intel Core i5 10400
- Core/Thread Count:
- 6 Core / 12 Thread
- Cache:
- 12MB L3
- CPU Process Node:
- 14 Nanometers
- CPU Socket:
- LGA 1200
- CPU Series:
- Comet Lake
- Form Factor:
- Desktop
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Manufacturer: Intel Last updated: September 9, 2026
10th Gen Intel Core i5 10400 Review
The 10th Gen Intel Core i5 10400 is a 6-core, 12-thread mainstream desktop processor built on Comet Lake for the LGA 1200 socket, with 12MB of L3 cache.
As a genuinely mainstream, non-overclockable desktop chip, this processor targets budget-conscious builders wanting solid 6-core, 12-thread performance without the price premium of unlocked "K" SKUs.
Integrated Graphics
The standard non-F variant of this chip includes Intel UHD Graphics 630 for basic display output; buyers should confirm the specific SKU (10400 vs. 10400F) before assuming integrated graphics availability.
How Is the Core i5 10400 in Terms of Performance
The 6-core, 12-thread layout gives this chip genuinely solid mainstream desktop performance for gaming and everyday productivity, positioned as a budget-friendly alternative to unlocked K-series chips for buyers who don't plan to overclock.
Benchmarks
This chip's close sibling, the i5-10400F, posted Cinebench R23 multi-core scores of 7,617 and single-core scores of 1,111 in testing, providing a useful reference point for the shared 6-core Comet Lake architecture the standard 10400 also uses.
Specifications
Identity
| Brand | Intel |
|---|---|
| Product Line | Core i5 |
| Product Line | Core i5 |
| Model Number | 10400 |
| Codename | Comet Lake |
| Release Year | 2020 |
Segment and platform
| Market Segment | Desktop |
|---|---|
| Microarchitecture | Comet Lake, 10th Gen Intel Core |
| Socket | LGA 1200 |
| Socket Status | End of Life |
| Process Node | 14 nm |
| Process Node | 14 nm |
Core configuration
| SMT Enabled | Yes |
|---|
Clock speeds
| P-Core Base Clock | 2.9 GHz |
|---|---|
| P-Core Boost Clock | 4.3 GHz |
Cache
| L2 Cache | 1.5 MB |
|---|---|
| L3 Cache | 12 MB |
Power and thermal
| Base Power | 65 W |
|---|
Memory
| Memory Type | DDR4 |
|---|---|
| Memory Channels | 2 |
| ECC Support | No |
Graphics and AI
| Integrated Graphics | Yes |
|---|---|
| iGPU Model | Intel UHD Graphics 630 |
| iGPU Compute Units | 24 |
Expansion
| PCIe Generation | PCIe 3.0 |
|---|---|
| PCIe Lanes | 16 |
Commercial
| Launch MSRP | 182 USD |
|---|---|
| Retail Availability | Retail |
| Form Factor | Desktop |
|---|---|
| Core/Thread Count | 6 Core / 12 Thread |
| Cache | 12MB L3 |
| Memory Speed | DDR4-2666 |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Budget-conscious desktop builders wanting solid mainstream 6-core performance without paying for overclocking headroom
Not for
- Enthusiasts wanting to overclock — the unlocked i5-10600K or Rocket Lake i5-11600K offer that flexibility
FAQs
What are the key specifications of the 10th Gen Intel Core i5 10400?
The 10th Gen Intel Core i5 10400 is a processor from Intel. Key specs: Core/Thread Count 6 Core / 12 Thread, Cache 12MB L3, CPU Process Node 14 Nanometers, CPU Socket LGA 1200, CPU Series Comet Lake, 10th Gen Intel Core.
Will the 10th Gen Intel Core i5 10400 work with my current setup?
The 10th Gen Intel Core i5 10400 lists CPU Socket is LGA 1200. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the 10th Gen Intel Core i5 10400 best suited to?
It suits budget-conscious desktop builders wanting solid mainstream 6-core performance without paying for overclocking headroom.
What are the drawbacks of the 10th Gen Intel Core i5 10400?
It is a poor fit for enthusiasts wanting to overclock — the unlocked i5-10600k or rocket lake i5-11600k offer that flexibility.