CPU Comparison
Intel Core i5-10400 vs Core i5-12400
A side-by-side comparison of specs, performance and value. The Intel Core i5-10400 is a 6-core, 12-thread desktop processor built on the 14nm Comet Lake architecture, offering solid mainstream performance with integrated UHD 630 graphics.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles everyday productivity and multitasking without issues.
Snappy and reliable for all standard desktop applications.
Gaming
Capable of smooth 1080p gaming when paired with a mid-range GPU.
Fantastic gaming performance that punches well above its weight class.
Virtualization
Suitable for basic virtualization needs with 12 threads.
Very capable for homelab and development VMs.
Efficiency
Power consumption is reasonable, though the 14nm process is less efficient than newer nodes.
Highly efficient 65W design with minimal heat output.
Specialized Performance
AI / ML
- No dedicated AI hardware
- Relies on CPU-based AVX2 instructions for inference
- No dedicated AI hardware
- Standard CPU inference
Content Creation
Gaming
- Excellent 1080p performance
- Slightly limited by 2666 MT/s memory speed
- Best paired with GTX 1660 or RTX 3060 class GPUs
- Does not bottleneck current mid-range GPUs
- Strong single-core speeds
- Consistent frame times due to pure P-cores
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent value for money
- 6 cores and 12 threads
- Includes integrated graphics
- Low 65W base TDP
- Wide motherboard compatibility
Cons
- Locked multiplier
- 14nm process runs warmer under load
- Limited to PCIe 3.0
- Memory speed capped at 2666 MT/s natively
Pros
- Outstanding price-to-performance
- Pure 6 P-core design
- Runs cool and quiet
- DDR5 and PCIe 5.0 support
- Includes Laminar RM1 cooler
Cons
- Locked multiplier
- UHD 730 graphics are basic
- Only 16 PCIe 5.0 lanes
- No E-cores for background tasks
- 117W PL2 requires decent motherboard VRM
Competitors & Alternatives
Intel Core i5-10400
- AMD Ryzen 5 3600Rival
Mainstream Desktop
- AMD Ryzen 5 2600Rival
Budget Desktop
- Compare head-to-headIntel Core i5-10400FRival
Mainstream Desktop
- Compare head-to-headIntel Core i5-9400Rival
Budget Desktop
- AMD Ryzen 3 3300XRival
Budget Desktop
- Intel Core i5-11400Alt
Offers better IPC and faster memory support.
A cheaper alternative for purely budget gaming.
Compare head-to-head- AMD Ryzen 5 5600Alt
Significantly faster single-core and gaming performance.
- Intel Core i5-12400Alt
Newer platform with DDR5 and PCIe 5.0 support.
Core i5-12400
- AMD Ryzen 5 5600Rival
Desktop
- AMD Ryzen 5 5600XRival
Desktop
- Intel Core i5-12400FRival
Desktop
- Compare head-to-headIntel Core i5-13400Rival
Desktop
- AMD Ryzen 5 7600Rival
Desktop
More hybrid cores for better multi-threading.
Compare head-to-headMuch cheaper for pure budget gaming.
Compare head-to-head
Our Verdict on Each
A highly cost-effective 6-core CPU that delivers excellent value for 1080p gaming and general computing, despite its locked multiplier and older 14nm process.
Best for: The Intel Core i5-10400 is highly recommended for users building a budget to mid-range 1080p gaming PC or a general-purpose home/office computer. Its 6-core, 12-thread configuration provides excellent longevity for everyday tasks, light content creation, and modern gaming when paired with a mid-range GPU like an RTX 3060 or RX 6600. The inclusion of UHD 630 graphics means the system is functional even if a discrete GPU fails or is delayed in purchase. Because it is a locked processor, there is no need to invest in expensive Z-series motherboards or high-end cooling; a simple B460 board and the stock cooler are sufficient. This makes it an ideal choice for budget-conscious buyers who prioritize stability, reliability, and maximum value over enthusiast-level tweaking or extreme frame rates.
Read the full reviewAn outstanding value CPU that delivers excellent gaming and productivity performance without breaking the bank.
Best for: Building a budget or mid-range gaming PC where value is the top priority.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-10400 or Core i5-12400?
Based on our editorial ratings, the Core i5-12400 comes out ahead with a score of 9/10. 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 i5-10400 or Core i5-12400?
For gaming, the Core i5-12400 leads with a gaming performance score of 90/100 among Intel Core i5-10400 and Core i5-12400.
Do Intel Core i5-10400 and Core i5-12400 use the same socket?
No. They use different sockets (Intel Core i5-10400: LGA 1200, Core i5-12400: LGA 1700), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Core i5-12400 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-10400 (14,500), Core i5-12400 (16,500). Benchmark figures are approximate and workload-dependent.