CPU Comparison
Intel Core i3-9300 vs Intel Core i5-7600K
A side-by-side comparison of specs, performance and value. The Intel Core i3-9300 is an OEM-exclusive 4-core, 4-thread desktop processor featuring an 8 MB L3 cache, a 62 W TDP, and slightly elevated clocks, created specifically to help system builders differentiate product lines.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
The 8 MB cache helps keep frequently used office applications responsive.
Snappy for daily tasks but fails in multi-threaded rendering.
Gaming
Slightly better than the 9100 due to cache and clocks, but 4 threads remain a hard bottleneck.
High clocks help older games, but 4 threads cause severe stuttering in modern titles.
Virtualization
4 threads are insufficient for meaningful virtualization.
Poor for VMs due to lack of threads.
Efficiency
The 62 W TDP makes it slightly more efficient per clock than the 65 W 9100.
91W TDP increases significantly when overclocked.
Specialized Performance
AI / ML
- No AI capabilities
- No AI hardware
- Unusable for modern AI tasks
Content Creation
Gaming
- Can handle very light esports at low settings if paired with a dedicated GPU
- The 4-thread limit causes significant stuttering in modern games
- Overclocking to 5GHz doesn't fix stuttering caused by 4 threads
- Bottlenecks modern GPUs heavily
- Only suitable for retro or eSports titles
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 8 MB L3 cache provides a tangible latency reduction
- 62 W TDP is slightly more efficient than the 65 W standard
- Higher clocks than the i3-9100 out of the box
- UHD 630 included for display output
- ECC memory support (if motherboard allows)
Cons
- OEM-exclusive, impossible to buy at retail
- Only 4 cores and 4 threads
- No Hyper-Threading
- Memory locked to DDR4-2400 MT/s
- Outclassed by cheap used AMD Ryzen parts
Pros
- Unlocked multiplier for overclocking
- High 4.2 GHz turbo boost
- Can easily hit 5.0 GHz with good cooling
- Strong single-thread performance
- Fun chip for legacy enthusiast builds
Cons
- Only 4 cores and 4 threads
- Severely bottlenecks modern games
- No official Windows 11 support
- 91W TDP gets hot when overclocked
- Quickly replaced by 6-core i5-8600K
Competitors & Alternatives
Intel Core i3-9300
- AMD Ryzen 3 3100Rival
Budget AM4
- Intel Core i3-9100Rival
Standard Desktop
- Compare head-to-headIntel Core i5-9400Rival
Mainstream Desktop
- AMD Ryzen 5 1600 AFRival
Used Market Value
- Compare head-to-headIntel Core i3-10100Rival
Next-Gen Desktop
Intel Core i5-7600K
- AMD Ryzen 5 1600Rival
Desktop
- AMD Ryzen 5 1500XRival
Desktop
- Compare head-to-headIntel Core i5-6600KRival
Desktop
- Intel Core i7-7700KRival
Desktop
- AMD FX-8350Rival
Desktop
Successor with 6 cores, offering much better modern performance.
Compare head-to-headThe locked version if you don't plan to overclock.
Compare head-to-head- Intel Core i5-12400FAlt
A modern budget CPU that vastly outperforms it.
- AMD Ryzen 5 3600Alt
A vastly superior modern CPU for a similar used price.
Our Verdict on Each
The i3-9300 is a minor tweak on the 9100, offering a bit more cache and slightly better efficiency, but its OEM-exclusive nature and 4-thread limit make it irrelevant for DIY builders.
Best for: The i3-9300 should only be considered if you are purchasing a pre-built desktop from an OEM (like HP or Lenovo) that happens to use this chip, and the price is heavily discounted. The 8 MB cache makes it a slightly better performer than a 9100 in single-task office environments. If you are building a PC yourself, you cannot buy this chip, and you shouldn't try to hunt it down on the grey market.
Read the full reviewA fun chip for overclocking, but its 4-core/4-thread design makes it obsolete for modern gaming and productivity workloads.
Best for: Buying a used chip for a legacy LGA 1151 retro gaming rig or overclocking experimentation.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i3-9300 or Intel Core i5-7600K?
Based on our editorial ratings, the Intel Core i5-7600K comes out ahead with a score of 6/10. 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 i3-9300 or Intel Core i5-7600K?
For gaming, the Intel Core i5-7600K leads with a gaming performance score of 55/100 among Intel Core i3-9300 and Intel Core i5-7600K.
Which uses less power?
The Intel Core i3-9300 has the lowest rated TDP. Power draw across these chips: Intel Core i3-9300 (62 W), Intel Core i5-7600K (91 W).
Do Intel Core i3-9300 and Intel Core i5-7600K use the same socket?
No. They use different sockets (Intel Core i3-9300: LGA 1151, Intel Core i5-7600K: Intel Socket 1151), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i5-7600K posts the highest multi-core benchmark score. Multi-core results: Intel Core i3-9300 (5,600), Intel Core i5-7600K (6,500). Benchmark figures are approximate and workload-dependent.