CPU Comparison
Intel Core i5-9600K vs Intel Core i3-9350K
A side-by-side comparison of specs, performance and value. The Intel Core i5-9600K is a 6-core, 6-thread unlocked desktop processor from the Coffee Lake Refresh family, featuring high clock speeds and integrated graphics for mainstream gamers.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Lacks threads for heavy productivity.
The fast cache and high clocks make single-app use feel snappy, but multitasking is heavily bottlenecked.
Gaming
Still performs well in gaming when overclocked.
The high clocks help in CPU-bound esports, but the 4-thread limit causes severe 1% low drops in modern games.
Virtualization
Not ideal due to 6 thread limit.
4 threads are completely inadequate for modern virtualization.
Efficiency
Can draw significant power when pushed to 5GHz.
The 91 W TDP on a 14nm 4-core chip results in very poor performance-per-watt.
Specialized Performance
AI / ML
- No dedicated AI hardware
- No AI acceleration features
- Lacks AVX-512 instructions
Content Creation
Gaming
- Excellent single-core speed
- Often hits 5GHz
- Bottlenecked by 6 threads in new games
- High clocks yield good average FPS in CS:GO and Valorant
- Stuttering will occur in games that demand more than 4 threads
- Requires substantial cooling to maintain 4.6 GHz boost
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Unlocked for overclocking
- Soldered IHS for great thermals
- High single-core speed
- Includes integrated graphics
Cons
- No Hyper-Threading
- 95W TDP requires good cooling
- End-of-life platform
- Struggles in modern multi-threaded games
Pros
- Unlocked multiplier allows for manual overclocking
- Massive 4.0 GHz base clock out of the box
- 8 MB L3 cache reduces latency compared to other i3s
- Very high single-threaded frequency potential
- Includes UHD 630 for basic display needs
Cons
- Only 4 threads severely limit real-world performance
- 91 W TDP is power-hungry for just 4 cores
- Expensive at $184 compared to the hyper-threaded i5-9400F
- 14nm process limits maximum overclocking headroom
- Intel discontinued unlocked i3s after this generation
Competitors & Alternatives
Intel Core i5-9600K
- AMD Ryzen 5 2600XRival
Enthusiast Desktop
- Compare head-to-headIntel Core i5-8600KRival
Enthusiast Desktop
- AMD Ryzen 5 3600Rival
Enthusiast Desktop
- Compare head-to-headIntel Core i7-8700Rival
High-End Desktop
- AMD Ryzen 7 2700Rival
Enthusiast Desktop
Adds Hyper-Threading for better multi-threading.
Compare head-to-head- Intel Core i5-12400FAlt
Modern budget king with much better performance.
- AMD Ryzen 5 5600XAlt
Massive single-core upgrade.
Cheaper variant if you already have a GPU.
Compare head-to-head
Intel Core i3-9350K
- AMD Ryzen 5 3600Rival
Mainstream AM4
- Compare head-to-headIntel Core i5-9400FRival
Mainstream Budget
- Compare head-to-headIntel Core i5-9600KRival
Enthusiast Budget
- AMD Ryzen 5 2600XRival
Previous-Gen AM4
- Compare head-to-headIntel Core i3-10100Rival
Next-Gen i3
- AMD Ryzen 7 5700XAlt
A modern 8-core option that completely eclipses the 9350K in every metric.
Our Verdict on Each
A legendary overclocker that dominated 1080p gaming in its era, though its 6-thread limitation shows its age in modern multi-threaded workloads.
Best for: Upgrading an existing Z390/Z370 system
Read the full reviewThe i3-9350K is an interesting engineering exercise with its high clocks and large cache, but the lack of Hyper-Threading and 14nm process limitations make it a poor value compared to a slightly more expensive i5.
Best for: The only reason to seek out an i3-9350K today is for a retro overclocking project or if you are a collector of unusual Intel silicon. If you happen to have one, pushing it to 5 GHz on a Z390 board with liquid cooling can be a fun experiment. It should not be purchased for any practical computing task. Even in 2019, spending slightly more on an i5-9400F or i5-9600K was the objectively correct decision for both gaming and productivity.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-9600K or Intel Core i3-9350K?
Based on our editorial ratings, the Intel Core i5-9600K comes out ahead with a score of 8/10. 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 i5-9600K or Intel Core i3-9350K?
For gaming, the Intel Core i5-9600K leads with a gaming performance score of 78/100 among Intel Core i5-9600K and Intel Core i3-9350K.
Which uses less power?
The Intel Core i3-9350K has the lowest rated TDP. Power draw across these chips: Intel Core i5-9600K (95 W), Intel Core i3-9350K (91 W).
Do Intel Core i5-9600K and Intel Core i3-9350K use the same socket?
Yes — all of these CPUs use the LGA 1151 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core i5-9600K has the most cores. Core counts: Intel Core i5-9600K (6 cores), Intel Core i3-9350K (4 cores).
Which is faster in multi-core benchmarks?
The Intel Core i3-9350K posts the highest multi-core benchmark score. Multi-core results: Intel Core i3-9350K (5,800). Benchmark figures are approximate and workload-dependent.