CPU Comparison
Intel Core Ultra 5 235HX vs Intel Core Ultra 9 285HX
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 5 235HX is a 14-core unlocked mobile processor delivering high clock speeds and substantial PCIe Gen 5 connectivity for flagship gaming laptops.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Slightly lower base clock results in a minor drop in sustained multi-threaded tasks.
Dominates multi-threaded benchmarks, rivaling desktop processors.
Gaming
Delivers nearly identical gaming FPS to the 245HX due to the same 5.1 GHz boost clock.
Delivers maximum frame rates in CPU-bound scenarios when paired with top-tier GPUs.
Virtualization
More than capable of handling local development environments.
Great for local VMs, though dual-channel memory limits extreme server workloads.
Efficiency
Shares the same poor battery life characteristics as other HX-class chips.
Highly inefficient at idle and low loads compared to standard mobile chips.
Specialized Performance
AI / ML
- 13 TOPS NPU is insufficient for modern AI PC standards
- Requires a discrete GPU for meaningful AI workloads
- 13 TOPS NPU included
- Heavy AI lifting relies on CPU and discrete GPU
- Total Int8 TOPS up to 36
Content Creation
Gaming
- 5.1 GHz boost clock ensures high frame rates
- Unlocked multiplier can optimize performance per specific game
- Best paired with an RTX 4070 or 4080 mobile GPU
- Will not bottleneck RTX 4090 mobile
- Excellent 1% low frame rates due to high boost clocks
- Requires massive cooling to prevent thermal throttling
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Same max boost clock as the 245HX
- Unlocked multiplier for tuning
- Excellent single-core speed
- Robust 20-lane PCIe layout
- Great value in the HX lineup
Cons
- Lower base clock hurts sustained workloads
- High power consumption
- Weak integrated graphics
- Lacks VT-rp instruction set
- Inadequate NPU for AI tasks
Pros
- Exceptional 24-core multi-threaded performance
- Unlocked multiplier for enthusiast tuning
- 20 PCIe Gen 5 lanes for maximum I/O
- High 5.5 GHz turbo boost for single-threaded tasks
- Supports ECC memory for workstation scenarios
Cons
- Massive 160W power draw requires heavy cooling
- Poor battery life efficiency
- Integrated graphics are underwhelming for non-dGPU scenarios
- BGA socket prevents upgrades
Competitors & Alternatives
Intel Core Ultra 5 235HX
- AMD Ryzen 9 7945HXRival
Enthusiast Mobile
- AMD Ryzen 7 8845HSRival
High-End Mobile
Better if you frequently run sustained multi-threaded workloads and the price is similar.
Compare head-to-head- AMD Ryzen 9 8945HSAlt
Much better battery life and AI performance if you don't need extreme PCIe lanes.
Intel Core Ultra 9 285HX
- AMD Ryzen 9 8945HXRival
Mobile (DTR)
- AMD Ryzen 9 7945HXRival
Mobile (DTR)
- Compare head-to-headIntel Core i9-14900HXRival
Mobile (DTR)
- Compare head-to-headApple M3 MaxRival
Mobile Workstation
- Compare head-to-headIntel Core Ultra 9 290HX PlusRival
Mobile (DTR)
- AMD Ryzen 9 7900HXAlt
Excellent alternative for pure gaming performance.
Slightly lower clocks but same core count, often cheaper.
Compare head-to-headBetter value for mid-range gaming laptops.
Compare head-to-head- AMD Ryzen 9 7945HX3DAlt
Features 3D V-Cache for unmatched gaming cache capacity.
If portability and battery life are more important.
Compare head-to-head
Our Verdict on Each
Offering nearly identical specifications to the 245HX but with a slightly lower base clock, the 235HX is a potent unlocked mobile chip for gamers who prioritize single-core speed.
Best for: Buying an overclockable gaming laptop where the 245HX commands a price premium.
Read the full reviewA true desktop replacement CPU delivering elite multi-core performance and overclocking headroom, provided the laptop can cool it.
Best for: The Core Ultra 9 285HX is highly recommended for users in the market for a top-tier gaming laptop or mobile workstation who need extreme multi-core performance without stepping up to a desktop. If your workflow involves software development, 3D modeling, or streaming while gaming, the 24 cores will handle the load effortlessly. However, prospective buyers must be aware of the thermal requirements; this chip demands a laptop with exceptional cooling to maintain its 160W turbo power. It is not suitable for students or professionals needing long battery life, as the 55W base power ensures it will deplete batteries quickly when unplugged. Ensure the laptop pairs this CPU with an RTX 4080 or 4090 class GPU to avoid a performance bottleneck. If you value overclocking and raw compute over portability, the 285HX is an excellent, future-proof investment.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core Ultra 5 235HX or Intel Core Ultra 9 285HX?
Based on our editorial ratings, the Intel Core Ultra 9 285HX 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 Ultra 5 235HX or Intel Core Ultra 9 285HX?
For gaming, the Intel Core Ultra 9 285HX leads with a gaming performance score of 98/100 among Intel Core Ultra 5 235HX and Intel Core Ultra 9 285HX.
Do Intel Core Ultra 5 235HX and Intel Core Ultra 9 285HX use the same socket?
Yes — all of these CPUs use the Intel BGA 2114 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core Ultra 9 285HX has the most cores. Core counts: Intel Core Ultra 5 235HX (14 cores), Intel Core Ultra 9 285HX (24 cores).
Which is faster in multi-core benchmarks?
The Intel Core Ultra 9 285HX posts the highest multi-core benchmark score. Multi-core results: Intel Core Ultra 9 285HX (0). Benchmark figures are approximate and workload-dependent.