CPU Comparison
Intel Core Ultra 7 255HX vs Intel Core Ultra 7 265HX
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 7 255HX is a high-performance mobile processor designed for enthusiast gaming laptops and portable workstations. Launched in early 2025, it is based on the Arrow Lake-HX architecture, featuring a robust 20-core configuration without Hyper-Threading. This setup includes 8 'Lion Cove' P-Cores and 12 'Skymont' E-Cores, operating across 20 threads. Manufactured on TSMC's 3nm process, the chip boasts a die size of 243 mm² and packs 17.8 billion transistors. It reaches impressive clock speeds, with a base frequency of 2.4 GHz and a maximum turbo of 5.2 GHz. The processor features an unlocked multiplier, a rare feature for mobile chips, allowing OEMs and extreme enthusiasts to push performance boundaries. With a base power of 55W and a maximum turbo power of 160W, it delivers desktop-class performance in a mobile form factor, paired with Arc Xe-LPG Graphics 64EU and a 13 TOPS NPU.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Rivals desktop CPUs in multi-threaded workloads like Cinebench and Blender.
Excellent multi-core scores in Cinebench and Blender, benefiting from the high 2.6 GHz base clock.
Gaming
Exceptional gaming performance when paired with a high-end discrete GPU, limited only by power constraints.
Top-tier gaming performance, easily driving high-refresh-rate panels without bottlenecking modern mobile GPUs.
Virtualization
Excellent for running multiple VMs locally on a workstation laptop.
Handles heavy virtualization workloads effortlessly with 20 physical cores.
Efficiency
Low efficiency at idle compared to standard H-series, designed for plugged-in performance.
Designed for raw power, efficiency takes a back seat with up to 160W draw.
Specialized Performance
AI / ML
- NPU 3 provides 13 TOPS
- Total platform AI is 33 TOPS
- Sufficient for basic background AI tasks but not heavy local LLMs
- NPU 3 provides 13 TOPS
- Total platform AI is 33 TOPS
- Handles basic AI background tasks well
Content Creation
Gaming
- High single-core boost clocks minimize bottlenecks
- Best paired with RTX 4080/4090 mobile GPUs
- Not intended for thin-and-light gaming
- High base clock minimizes frame drops
- Ideal for RTX 4090 Mobile or equivalent
- Excellent for CPU-bound simulation games
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Massive 20-core count
- Unlocked multiplier for mobile overclocking
- 20 PCIe Gen 5 lanes
- Excellent 5.2 GHz single-core boost
- Desktop-class performance
Cons
- High power consumption (160W turbo)
- Modest 13 TOPS NPU
- Requires massive cooling solution
- Poor battery life in laptops
Pros
- High 2.6 GHz base clock
- 20 physical cores (8P+12E)
- Unlocked multiplier
- 5.3 GHz max turbo
- Massive 30 MB L3 cache
Cons
- Very high power consumption
- 13 TOPS NPU is relatively low
- Heavy and thick laptop requirements
- BGA socket prevents user upgrades
Competitors & Alternatives
Intel Core Ultra 7 255HX
- AMD Ryzen 9 7945HXRival
Mobile
- AMD Ryzen 9 8945HXRival
Mobile
- Compare head-to-headIntel Core Ultra 9 285HXRival
Mobile
- Compare head-to-headIntel Core i9-14900HXRival
Mobile
- AMD Ryzen 9 7945HX3DRival
Mobile
Slightly higher base and boost clocks for similar price.
Compare head-to-headBetter choice for thin-and-light designs with good battery life.
Compare head-to-headPrevious generation, often available at a discount.
Compare head-to-head- AMD Ryzen 7 8845HSAlt
More efficient alternative for moderate gaming.
Intel Core Ultra 7 265HX
- AMD Ryzen 9 8945HXRival
Mobile
- Compare head-to-headIntel Core Ultra 9 285HXRival
Mobile
- AMD Ryzen 9 7945HXRival
Mobile
- Compare head-to-headIntel Core i9-14900HXRival
Mobile
- RivalCompare head-to-head
Slightly lower clocks but essentially the same silicon for less.
Compare head-to-headFor users who want better battery life and portability.
Compare head-to-head- AMD Ryzen 7 8845HSAlt
More efficient alternative for moderate gaming.
Our Verdict on Each
A powerhouse mobile CPU offering unlocked overclocking and massive multi-core throughput for desktop replacements.
Best for: Desktop replacement gaming laptop
Read the full reviewAn exceptionally fast mobile CPU that bridges the gap between desktop and laptop performance with high base clocks and massive core counts.
Best for: High-end desktop replacement laptop
Read the full reviewFrequently Asked Questions
Which is better, Intel Core Ultra 7 255HX or Intel Core Ultra 7 265HX?
Based on our editorial ratings, the Intel Core Ultra 7 265HX comes out ahead with a score of 8.9/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.
Do Intel Core Ultra 7 255HX and Intel Core Ultra 7 265HX use the same socket?
Yes — all of these CPUs use the Intel BGA 2114 socket, so they share compatible motherboards.