CPU Comparison
Intel Core i9-14900HX vs Intel Core Ultra 9 275HX
A side-by-side comparison of specs, performance and value. The Intel Core i9-14900HX is a high-end 24-core/32-thread mobile processor for large gaming and workstation laptops, based on the Raptor Lake-HX Refresh architecture and offering very high single-thread and multi-thread performance for a mobile chip, with a 55 W base power and up to 157 W turbo power.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Excellent multi-threaded performance for video editing, 3D rendering, and heavy multi-tasking; comparable to lower-power desktop CPUs in short bursts.
Handles heavily threaded tasks with ease, losing only 1-2% to the 285HX.
Gaming
Provides very high FPS in CPU-heavy titles and high-refresh 1440p gaming when paired with a high-end GPU, but is often GPU-bound at 4K and limited by laptop power/thermal throttling.
Performs identically to the flagship in GPU-bound scenarios.
Virtualization
Strong for running several VMs or containers on a laptop, with 32 threads and ample memory support, though sustained loads depend on laptop power limits.
Strong performance for local VMs, limited slightly by dual-channel memory.
Efficiency
High performance-per-watt at low loads, but under multi-core turbo it draws significantly more power than typical mobile CPUs, impacting battery life and thermals.
Power-hungry under load, requiring robust laptop cooling.
Specialized Performance
AI / ML
- No dedicated NPU; AI workloads run on CPU or iGPU.
- Good CPU-based inference performance for local LLMs and image models thanks to high clock and 32 threads.
- For serious local AI, a dedicated GPU or NPU-based platform is more efficient.
- 13 TOPS NPU included
- Total Int8 TOPS up to 36
- Relies heavily on CPU/dGPU for heavy AI
Content Creation
Gaming
- Very high single-core clocks and strong IPC deliver high FPS in most games.
- Best experienced with a high-end GPU (RTX 4080/4090 class) and good cooling.
- Performance is often GPU-bound at 4K; CPU differences matter more at 1440p/1080p high refresh.
- Power and thermal limits in some laptops can reduce boost clocks under combined CPU+GPU load.
- 5.4 GHz turbo is plenty for high-refresh-rate gaming
- Won't bottleneck high-end mobile GPUs
- Overclockable to match higher-tier SKUs
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Very high single-thread and multi-thread performance for a mobile CPU
- Up to 5.8 GHz on P-cores with strong IPC
- 24 cores / 32 threads handle heavy creator and multi-tasking workloads
- Supports both DDR5-5600 and DDR4-3200 with up to 192 GB RAM
- 20 PCIe 5.0/4.0 lanes for high-end GPU and fast NVMe storage
- Unlocked multiplier for overclocking (where OEM enables it)
Cons
- High power draw: 55 W base and up to 157 W turbo demands robust cooling
- Runs hot under sustained multi-core loads; laptop design is critical
- Integrated UHD Graphics is basic; not suitable for gaming without dGPU
- BGA socket means the CPU is not user-replaceable
- Efficiency is lower than newer Core Ultra HX parts under long multi-core loads
Pros
- Excellent value for 24-core performance
- Unlocked multiplier allows matching flagship clocks
- 20 PCIe Gen 5 lanes for maximum expandability
- 36MB L3 cache keeps cores fed
- ECC memory support
Cons
- High power consumption (160W turbo)
- Requires heavy, thick laptop chassis for cooling
- Poor battery life efficiency
- Weak integrated graphics relative to CPU power
Competitors & Alternatives
Intel Core i9-14900HX
- AMD Ryzen 9 7945HXRival
High-End Mobile (Dragon Range)
- Compare head-to-headIntel Core i9-13980HXRival
High-End Mobile (Raptor Lake-HX)
- Compare head-to-headIntel Core Ultra 9 275HXRival
High-End Mobile (Next-Gen HX)
- AMD Ryzen 9 8945HXRival
High-End Mobile (Zen 4 Dragon Range)
- Apple M3 Max (16-core)Rival
High-Performance Mobile (ARM)
Fewer cores (20/28) but much better efficiency and lower cost; often sufficient for gaming and moderate creator workloads.
Compare head-to-headFocus on efficiency and AI; better battery life and lighter weight, though lower peak CPU performance than 14900HX.
Compare head-to-head- AMD Ryzen AI 9 HX 370Alt
Newer Zen 5/RDNA 3.5 with strong efficiency and integrated AI; for next-gen laptops rather than raw desktop-replacement performance.
- Desktop Intel Core i7-14700K + ITXAlt
More performance and upgradeability if you can tolerate a small-form-factor desktop instead of a laptop.
Intel Core Ultra 9 275HX
- AMD Ryzen 9 8945HXRival
Mobile (DTR)
- AMD Ryzen 9 7945HXRival
Mobile (DTR)
- Compare head-to-headIntel Core i9-14900HXRival
Mobile (DTR)
- Compare head-to-headIntel Core Ultra 9 285HXRival
Mobile (DTR)
- Compare head-to-headApple M3 MaxRival
Mobile Workstation
- AMD Ryzen 9 7900HXAlt
A strong competitor for pure gaming performance.
A more budget-friendly option for mid-range gaming.
Compare head-to-head- AMD Ryzen 7 8845HSAlt
If portability and battery life are higher priorities.
- AMD Ryzen 9 7945HX3DAlt
Features 3D V-Cache for superior gaming cache.
Our Verdict on Each
One of the fastest mobile CPUs for raw compute and gaming, with excellent multi-thread performance and very high clocks, but power-hungry and highly dependent on laptop cooling and power limits.
Best for: High-end gaming or desktop-replacement laptop where you need maximum CPU performance and are okay with high power draw and heat.
Read the full reviewOffers 95% of the flagship's performance for a better value, maintaining the massive 24-core layout and unlocked overclocking.
Best for: The Core Ultra 9 275HX is highly recommended for gamers and creators seeking near-flagship performance without paying the absolute premium for the highest-tier chips. If you are looking at a high-end gaming laptop and the 275HX option is significantly cheaper than the 285HX, it is often the smarter buy, as the 100MHz difference is negligible in real-world scenarios. It retains the unlocked multiplier, 24 cores, and 20 PCIe Gen 5 lanes, making it highly future-proof. However, like all HX chips, it requires a substantial cooling solution to manage its 160W turbo power, so prioritize laptops with robust thermal designs. Avoid this processor if you need a laptop for casual use or long battery life, as it is inefficient for light workloads. Pair it with a high-end GPU to get the most out of your investment.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core i9-14900HX or Intel Core Ultra 9 275HX?
For gaming, the Intel Core Ultra 9 275HX leads with a gaming performance score of 96/100 among Intel Core i9-14900HX and Intel Core Ultra 9 275HX.
Do Intel Core i9-14900HX and Intel Core Ultra 9 275HX use the same socket?
No. They use different sockets (Intel Core i9-14900HX: FCBGA1964 (BGA-1964), Intel Core Ultra 9 275HX: Intel BGA 2114), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i9-14900HX posts the highest multi-core benchmark score. Multi-core results: Intel Core i9-14900HX (44,060), Intel Core Ultra 9 275HX (0). Benchmark figures are approximate and workload-dependent.