CPU Comparison
Intel Core i3-12300T vs Core i5-12400T
A side-by-side comparison of specs, performance and value. The Intel Core i3-12300T is a 4-core, 8-thread low-power desktop processor that sits between the i3-12100T and i5-12400T in Intel's Alder Lake T-series lineup, offering slightly higher clocks within the same 35W power envelope.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Marginally better than the 12100T in sustained workloads due to the slightly higher base clock, but the difference is small.
Highly responsive for daily applications and moderate multitasking.
Gaming
Virtually identical to the i3-12100T in gaming scenarios. The 100 MHz clock difference is within margin of error for most game benchmarks.
Decent for gaming with a discrete GPU, though limited by lower max boost compared to 65W variants.
Virtualization
Same 4-core, 8-thread configuration as the 12100T. The 100 MHz advantage has negligible impact on VM performance.
6 cores with 12 threads handle homelab virtualization well.
Efficiency
Identical 35W TDP as the 12100T with a tiny performance increase, resulting in marginally better performance per watt.
Near-perfect efficiency for a desktop chip; runs exceptionally cool.
Specialized Performance
AI / ML
- No AI acceleration features
- 4 cores at 35W insufficient for meaningful AI workloads
- Not targeted at AI applications
- No dedicated AI hardware
- CPU-based AI inference is slow
Content Creation
Gaming
- Requires discrete GPU for gaming
- Performance is effectively identical to i3-12100T
- Suitable for budget gaming builds in SFF cases
- 4.2 GHz boost is adequate for mid-range GPU pairing
- Requires a discrete GPU for serious gaming
- Slightly lower FPS than 12400 due to clocks
- Excellent for living room gaming setups
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Highest clocks among 35W 4-core Alder Lake i3 processors
- Lower launch price of $97 made it excellent value
- Full LGA 1700 chipset compatibility
- PCIe 5.0 for future storage and GPU upgrades
- Very low power consumption suitable for 24/7 operation
- UHD Graphics 730 at slightly higher 1450 MHz frequency
Cons
- Only 100 MHz faster than i3-12100T, imperceptible in practice
- 4 cores with no E-Cores limit multi-threaded capability
- 35W TDP significantly reduces sustained performance vs 60W variants
- Limited upgrade path within T-series processors
- Not competitive with AMD's 6-core options at similar prices
Pros
- Extremely low 35W TDP
- Pure P-core design
- PCIe 5.0 support
- Runs very cool
- DDR5 support
Cons
- Lower boost clocks than 12400
- Locked multiplier
- UHD 730 graphics are basic
- Harder to find than standard models
- PL2 drops quickly to 35W
Competitors & Alternatives
Intel Core i3-12300T
- AMD Ryzen 5 5500Rival
Budget Desktop
- AMD Ryzen 5 3600Rival
Budget Desktop
- AMD Ryzen 3 4100Rival
Budget Desktop
- Compare head-to-headIntel Core i3-12100TRival
Low-Power Desktop
- AMD Ryzen 5 3400GERival
Low-Power Desktop
For users who can accommodate 60W, the standard i3-12100 offers dramatically better sustained performance.
Compare head-to-head- Intel Core i5-12400TAlt
6-core T-series option if you need more multi-threaded performance while staying at 35W base TDP.
Core i5-12400T
- AMD Ryzen 5 5600GERival
Low Power Desktop
- AMD Ryzen 5 4600GRival
Desktop APU
- Intel Core i5-12400Rival
Desktop
- Compare head-to-headIntel Core i3-12100TRival
Low Power Desktop
- AMD Ryzen 5 5600Rival
Desktop
Newer generation with more hybrid cores for better multi-threading.
Compare head-to-headCheaper and sufficient for basic office tasks.
Compare head-to-head- AMD Ryzen 5 8600GAlt
Much better integrated graphics in a low-power envelope.
Our Verdict on Each
A modest improvement over the i3-12100T with 100 MHz higher base and boost clocks, making it the best 35W 4-core Alder Lake option, though the performance delta is small and may not justify any price premium.
Best for: Building a compact or quiet desktop where the 35W TDP is a requirement and the i3-12300T is priced lower than or equal to the i3-12100T.
Read the full reviewAn incredibly efficient 6-core CPU that delivers excellent everyday desktop performance with near-silent operation, perfect for compact builds.
Best for: Building a silent or compact PC where heat output is the primary concern.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i3-12300T or Core i5-12400T?
Based on our editorial ratings, the Core i5-12400T 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 i3-12300T or Core i5-12400T?
For gaming, the Core i5-12400T leads with a gaming performance score of 75/100 among Intel Core i3-12300T and Core i5-12400T.
Do Intel Core i3-12300T and Core i5-12400T use the same socket?
Yes — all of these CPUs use the LGA 1700 socket, so they share compatible motherboards.
Which has more cores?
The Core i5-12400T has the most cores. Core counts: Intel Core i3-12300T (4 cores), Core i5-12400T (6 cores).
Which is faster in multi-core benchmarks?
The Core i5-12400T posts the highest multi-core benchmark score. Multi-core results: Core i5-12400T (12,500). Benchmark figures are approximate and workload-dependent.