CPU Comparison
Intel Core Ultra 5 245HX vs Intel Core Ultra 9 275HX
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 5 245HX is a high-performance mobile processor featuring 14 cores, an unlocked multiplier, and 20 direct PCIe Gen 5 lanes, designed for enthusiast laptops.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
14 strong cores handle multi-threaded creator workloads efficiently.
Handles heavily threaded tasks with ease, losing only 1-2% to the 285HX.
Gaming
Paired with a discrete GPU, the high clock speeds and fast DDR5 memory provide top-tier mobile gaming.
Performs identically to the flagship in GPU-bound scenarios.
Virtualization
Solid performance for local VMs, aided by 20 PCIe lanes for fast storage.
Strong performance for local VMs, limited slightly by dual-channel memory.
Efficiency
Poor battery life when unplugged due to the high 55W base power and lack of LP-E cores.
Power-hungry under load, requiring robust laptop cooling.
Specialized Performance
AI / ML
- Only 13 TOPS NPU, falling short of Copilot+ requirements
- Relies on discrete GPU for serious AI workloads
- CPU-based AI inference is capable but slow
- 13 TOPS NPU included
- Total Int8 TOPS up to 36
- Relies heavily on CPU/dGPU for heavy AI
Content Creation
Gaming
- High base clock prevents significant frequency drops during gaming
- Ideal pairing for RTX 4080/4090 mobile GPUs
- Unlocked multiplier can squeeze out extra FPS
- 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
- Unlocked for enthusiast overclocking
- Massive 20 PCIe Gen 5 lanes
- High 3.1 GHz base clock
- Strong single-core performance
- 24MB of L3 cache
Cons
- High power draw limits battery life
- Requires bulky laptop cooling solutions
- Weak 13 TOPS NPU
- Xe-LPG iGPU is outdated for gaming
- No Hyper-Threading
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 Ultra 5 245HX
- AMD Ryzen 9 7945HXRival
Enthusiast Mobile
- AMD Ryzen 9 9950HXRival
Next-Gen Enthusiast
Offers more cores and higher clocks if budget allows.
Compare head-to-head- AMD Ryzen 9 8945HSAlt
Better battery life and AI performance if you don't need PCIe Gen 5.
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
The 245HX brings desktop-class features like an unlocked multiplier and vast PCIe connectivity to the mobile space, making it a powerhouse for thick-and-heavy enthusiast laptops.
Best for: Enthusiasts buying a thick gaming laptop who want to manually overclock.
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 better, Intel Core Ultra 5 245HX or Intel Core Ultra 9 275HX?
Based on our editorial ratings, the Intel Core Ultra 9 275HX comes out ahead with a score of 8.8/10. 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 245HX 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 Ultra 5 245HX and Intel Core Ultra 9 275HX.
Do Intel Core Ultra 5 245HX and Intel Core Ultra 9 275HX 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 275HX has the most cores. Core counts: Intel Core Ultra 5 245HX (14 cores), Intel Core Ultra 9 275HX (24 cores).
Which is faster in multi-core benchmarks?
The Intel Core Ultra 9 275HX posts the highest multi-core benchmark score. Multi-core results: Intel Core Ultra 9 275HX (0). Benchmark figures are approximate and workload-dependent.