CPU Comparison
Intel Core i5-14400T vs Intel Core Ultra 5 135UL
A side-by-side comparison of specs, performance and value. The Intel Core i5-14400T is a power-efficient desktop processor featuring a hybrid 6 P-core and 4 E-core architecture for a total of 10 cores and 16 threads. With a remarkably low 35W base power rating, it is tailored for small form factor PCs, thin clients, and home theater setups where thermals and acoustics are critical. The processor runs at a 1.5 GHz P-core base frequency but can boost up to 4.5 GHz when needed, providing burst performance for demanding tasks. It includes 20 MB of L3 cache and Intel UHD Graphics 730, capable of handling 4K media playback effortlessly. Supporting both DDR4 and DDR5 memory on the LGA 1700 socket, the i5-14400T offers an excellent balance of everyday computing capability and power-sipping efficiency for eco-conscious users.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Hybrid cores handle office and light productivity very well.
Snappy office performance due to higher turbo clocks.
Gaming
Good for 1080p gaming when paired with a discrete GPU.
Not intended for 3D gaming.
Virtualization
E-cores provide good background VM support.
Capable of light server duties but limited by power.
Efficiency
Outstanding performance per watt at 35W.
Exceptional power-to-performance ratio for edge computing.
Specialized Performance
AI / ML
- No NPU
- E-cores can handle background AI tasks efficiently
- NPU ideal for smart retail
- 11 TOPS for vision models
- Low power AI processing
Content Creation
Gaming
- 4.5 GHz boost provides strong single-core gaming performance
- UHD 730 is only suitable for e-sports
- Becomes a great gaming chip with a discrete GPU
- 64EU graphics is enough for display out
- Not for gaming
- Good hardware media decode
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Extremely low 35W TDP
- 10 cores and 16 threads
- Supports DDR4 and DDR5
- High 4.5 GHz boost clock
- Includes UHD 730 graphics
- Affordable price point
Cons
- Very low 1.5 GHz base clock
- Locked multiplier
- UHD 730 graphics are basic
- 154W PL2 requires robust VRM for burst
- No bundled cooler
Pros
- Excellent low-power operation
- Higher turbo clocks than 125UL
- Integrated NPU for AI
- Socketed LGA 1851 design
- Good for silent PC builds
Cons
- Not for gaming
- Limited PCIe lanes
- Locked multiplier
- Low base clock speeds
Competitors & Alternatives
Intel Core i5-14400T
- AMD Ryzen 5 5600TRival
Efficient Desktop
- AMD Ryzen 5 8600GRival
Desktop APU
- Compare head-to-headIntel Core i5-14500TRival
Efficient Desktop
- AMD Ryzen 7 5700GRival
Desktop APU
- Compare head-to-headIntel Core i3-14100TRival
Efficient Desktop
Higher 65W base TDP provides much better sustained performance.
Compare head-to-headPrevious generation with similar efficiency at a lower price.
Compare head-to-headCheaper alternative if multi-threading is not required.
Compare head-to-head
Intel Core Ultra 5 135UL
- AMD Ryzen 5 8640URival
Mobile/Embedded
- AMD Ryzen 5 8600GERival
Desktop
- Compare head-to-headIntel Core Ultra 5 125ULRival
Desktop
- Compare head-to-headIntel Core i5-14400TRival
Desktop
- AMD Ryzen 5 PRO 7640URival
Mobile/Embedded
- AMD Ryzen 5 5600GEAlt
Proven AM4 mini-PC option.
- Intel Core Ultra 7 165ULAlt
More cores for heavier edge workloads.
Our Verdict on Each
An incredibly efficient 10-core processor that brings hybrid architecture to low-power builds without sacrificing burst performance.
Best for: Building a small form factor or fanless PC where thermals are restricted but multi-core performance is desired.
Read the full reviewA strong low-power desktop CPU offering slightly better burst performance than the 125UL, ideal for SFF and edge AI.
Best for: The Core Ultra 5 135UL is an excellent processor for niche desktop applications requiring low power consumption and integrated AI capabilities. If you are constructing a small form factor PC for a home theater, a network appliance, or a lightweight office machine that runs 24/7, the 135UL provides a perfect balance of adequate performance and minimal heat output. The slight clock speed increase over the 125UL makes it better suited for occasional heavier tasks like photo organization or local AI testing. However, for mainstream gaming or heavy content creation, this processor will bottleneck performance. Choose the 135UL only if your primary goals are silence, continuous operation, and edge AI functionality rather than raw desktop performance or gaming frame rates.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-14400T or Intel Core Ultra 5 135UL?
Based on our editorial ratings, the Intel Core Ultra 5 135UL comes out ahead with a score of 8.2/10. 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 i5-14400T or Intel Core Ultra 5 135UL?
For gaming, the Intel Core i5-14400T leads with a gaming performance score of 70/100 among Intel Core i5-14400T and Intel Core Ultra 5 135UL.
Which uses less power?
The Intel Core Ultra 5 135UL has the lowest rated TDP. Power draw across these chips: Intel Core i5-14400T (35 W), Intel Core Ultra 5 135UL (15 W).
Do Intel Core i5-14400T and Intel Core Ultra 5 135UL use the same socket?
No. They use different sockets (Intel Core i5-14400T: LGA 1700, Intel Core Ultra 5 135UL: Intel Socket 1851), so each needs a compatible motherboard.
Which has more cores?
The Intel Core Ultra 5 135UL has the most cores. Core counts: Intel Core i5-14400T (10 cores), Intel Core Ultra 5 135UL (12 cores).