CPU Comparison

Intel Core i5-10400F vs Intel Core i7-9700K

A side-by-side comparison of specs, performance and value. The Intel Core i5-10400F is a 6-core, 12-thread desktop processor that disables integrated graphics, offering excellent value for budget gaming rigs equipped with a dedicated GPU.

Intel · Core i5
Intel Core i5-10400F
6C / 12T4.3 GHz65 W
8.2
Full review
Top pick
Intel · Core i7
Intel Core i7-9700K
8C / 8T4.9 GHz95 W
8.5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop
Desktop
Generation
10th Gen Core i5
9th Gen Core i7
Launched
2020
2018
Status
Active
End-of-life
Codename
Comet Lake
Coffee Lake
Series
Core i5
Core i7
Family
10th Generation
Coffee Lake
Predecessor
Intel Core i5-9400F
Intel Core i7-8700K
Successor
Intel Core i5-11400F
Intel Core i7-10700K

Specifications Compared

Cores & Clocks
Cores
6
8
Threads
12
8
Base Clock
2.9 GHz
3.6 GHz
Boost Clock
4.3 GHz
4.9 GHz
Cache & Power
L3 Cache
12 MB
12 MB
TDP
65 W
95 W
Architecture
Architecture
Comet Lake
Coffee Lake
Process Node
14 nm
14nm
Memory
Memory Type
DDR4
DDR4
Memory Speed
2666 MT/s
2666 MT/s
Memory Channels
Dual (2)
Dual (2)
Max Memory
128 GB
128 GB
Platform & I/O
Socket
LGA 1200
Intel Socket 1151
PCIe Version
PCIe 3.0
PCIe 3.0
PCIe Lanes
16
16
Integrated GPU
None
Yes
Unlocked
No
Yes

Performance Compared

Productivity

Intel Core i5-10400F75

Handles everyday applications and multitasking efficiently.

Intel Core i7-9700KBest80

Strong performance, but lacks Hyper-Threading for maximum multi-threaded scaling.

Gaming

Intel Core i5-10400F85

Excellent 1080p gaming performance when paired with a mid-range GPU.

Intel Core i7-9700KBest90

Excellent gaming performance, still capable of pushing high frame rates.

Virtualization

Intel Core i5-10400F70

Capable of running basic virtual machines.

Intel Core i7-9700K70

8 cores are good, but 8 threads limit parallel VM performance.

Efficiency

Intel Core i5-10400FBest65

Standard 14nm efficiency, adequate for a 65W TDP.

Intel Core i7-9700K60

14nm process and high clocks result in significant power draw when overclocked.

Specialized Performance

AI / ML

Intel Core i5-10400FLimited
  • No dedicated AI hardware
  • Basic CPU inference only
Intel Core i7-9700KLimited
  • No dedicated AI hardware
  • Good CPU inference due to high clocks

Content Creation

Intel Core i5-10400FModerate
PhotoshopLight 1080p Video EditingIndie Game Development
Intel Core i7-9700KGood
Premiere ProPhotoshopOBS StudioBlender

Gaming

Intel Core i5-10400FExcellent
  • Ideal for 1080p high-refresh gaming
  • Pairs well with GTX 1660 Super or RTX 3060
  • No integrated graphics means a GPU is mandatory
Intel Core i7-9700KExcellent
  • High single-core speeds benefit gaming
  • Capable of 144Hz+ gaming
  • Still relevant for modern GPUs

Industry Impact

Gaming
High
High
Workstations
Moderate
Moderate
Content Creation
Moderate
Moderate
Virtualization
Moderate
Moderate

Best CPU by Use Case

1080p Gaming
Excellent
Esports Titles
Excellent
General Computing
Very Good
Light Streaming
Good
Home Office
Very Good
High Refresh Rate Gaming
Excellent
Overclocking
Excellent
Streaming
Very Good
Video Editing
Good
3D Rendering
Good

Target Audience

Gamers
Targeted
Targeted
Content Creators
Targeted
Targeted
Developers
Targeted
Workstation Users
Streamers
Targeted
Office / Productivity
Students
Targeted

Strengths & Weaknesses

Intel Core i5-10400F

Pros

  • Excellent value for money
  • 6 cores and 12 threads
  • Low 65W base TDP
  • Wide motherboard compatibility
  • Ideal for budget gaming

Cons

  • No integrated graphics
  • Locked multiplier
  • Limited to PCIe 3.0
  • Memory speed capped at 2666 MT/s natively
Intel Core i7-9700K

Pros

  • Excellent gaming performance
  • Unlocked for overclocking
  • Uses Solder TIM for better cooling
  • 8 physical cores

Cons

  • Lacks Hyper-Threading
  • Dead LGA 1151 platform
  • High power consumption when overclocked
  • 14nm process is outdated

Competitors & Alternatives

Intel Core i5-10400F

Intel Core i7-9700K

Our Verdict on Each

By removing the integrated graphics, Intel created a highly affordable 6-core CPU that maximizes value for gamers who already own a discrete GPU.

Best for: The Intel Core i5-10400F is highly recommended for budget-conscious gamers building a 1080p system with a dedicated graphics card. By cutting out the integrated graphics, it saves money that can be better spent on a stronger GPU, making it an ideal pairing for cards like the GTX 1660 Super or RTX 3060. Its 6-core, 12-thread design ensures it won't bottleneck mid-range GPUs in most modern games. Because it is locked, you don't need to spend extra on Z-series motherboards or fancy coolers; a B460 board and stock cooling are perfectly adequate. It is perfect for students or first-time builders who want a reliable, plug-and-play experience. Avoid it only if you absolutely need integrated graphics as a fallback or if you plan on overclocking.

Read the full review

A legendary gaming CPU that introduced 8 cores to the i7 lineup. Its high clocks and unlocked multiplier make it great for enthusiasts, though it lacks Hyper-Threading.

Best for: For PC builders considering the Core i7-9700K today, it is only recommended if purchased used at a significant discount. It remains an excellent gaming CPU, capable of handling modern titles without bottlenecking mid-range GPUs. The unlocked multiplier allows for easy overclocking, extending its lifespan. However, the lack of Hyper-Threading limits its potential in heavily multi-threaded productivity tasks like video editing or 3D rendering compared to modern CPUs. Avoid this processor if you are building a new system from scratch, as the LGA 1151 socket is dead, offering no upgrade path. If you already own a Z390 motherboard and are upgrading from a lower-tier 8th or 9th Gen CPU, the 9700K is a worthwhile investment. For everyone else, an AMD Ryzen 5 5600X or Intel Core i5-12400F offers better value, modern architecture, and an upgrade path.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i5-10400F or Intel Core i7-9700K?

Based on our editorial ratings, the Intel Core i7-9700K comes out ahead with a score of 8.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.

Which is faster for gaming, Intel Core i5-10400F or Intel Core i7-9700K?

For gaming, the Intel Core i7-9700K leads with a gaming performance score of 90/100 among Intel Core i5-10400F and Intel Core i7-9700K.

Which uses less power?

The Intel Core i5-10400F has the lowest rated TDP. Power draw across these chips: Intel Core i5-10400F (65 W), Intel Core i7-9700K (95 W).

Do Intel Core i5-10400F and Intel Core i7-9700K use the same socket?

No. They use different sockets (Intel Core i5-10400F: LGA 1200, Intel Core i7-9700K: Intel Socket 1151), so each needs a compatible motherboard.

Which has more cores?

The Intel Core i7-9700K has the most cores. Core counts: Intel Core i5-10400F (6 cores), Intel Core i7-9700K (8 cores).

Which is faster in multi-core benchmarks?

The Intel Core i5-10400F posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-10400F (14,600). Benchmark figures are approximate and workload-dependent.