CPU Comparison
Intel Core Ultra 7 356H vs Intel Core Ultra X9 378H
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 7 356H is a 16-core high-end mobile processor from Intel’s Panther Lake (Core Ultra Series 3) family, combining four Cougar Cove performance cores, eight Darkmont efficient cores, and four low-power Darkmont LP cores with Intel’s Xe3 integrated graphics and a dedicated NPU 5 accelerator. It targets premium thin-and-light and mainstream performance laptops where CPU and AI throughput matter more than raw GPU horsepower, offering strong multi-threaded performance and modern platform features like PCIe 5.0 and high-speed LPDDR5X memory within a 25–80 W power envelope.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- NPU 5 up to 50 TOPS INT8 aligns with Intel’s Copilot+ PC requirements
- Good for local AI assistants, background blur, noise cancellation, and light on-device inference
- Not aimed at large-scale model training, but very capable for client AI workloads
- 50 TOPS NPU enables local AI features like Windows Studio Effects and lightweight LLM inference.
- Combined CPU + GPU + NPU acceleration benefits OpenVINO, DirectML and ONNX workflows.
- Not aimed at heavy datacenter‑style training, but strong for client‑side AI PC experiences.
Content Creation
Gaming
- 4-core Xe3 iGPU is a solid step over 11th/12th-gen UHD but below Arc B390/B370
- Suitable for 1080p low/medium in e-sports and older titles
- For serious gaming, pair with a discrete GPU or choose a Panther Lake SKU with more Xe cores
- Arc B390 iGPU is a major upgrade over earlier Intel mobile iGPUs.
- Suitable for 1080p gaming in many esports and AAA titles at medium–high settings.
- Ray tracing is supported but best used selectively due to iGPU limitations.
- Discrete GPUs still preferred for high‑refresh 1440p+ gaming.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 16 hybrid cores with strong multi-threaded performance for a 25–80 W mobile SoC
- Intel 18A compute tile and modern core designs improve performance per watt vs prior generations
- Xe3 4-core iGPU is a notable upgrade over UHD/Iris Xe for light gaming and media
- NPU 5 with 50 TOPS INT8 supports Copilot+ and local AI workloads
- 20 PCIe 5.0/4.0 lanes and LPDDR5X-8533/DDR5-7200 support modern laptop and mini-PC designs
Cons
- 4-core Xe3 iGPU is still far behind the 12-core Arc B390/B370 found in higher Panther Lake SKUs
- No unlocked multiplier; performance ceiling depends on OEM power tuning
- Max 96 GB memory may feel limiting for some professional workloads
- Not intended for heavy sustained multi-threaded workloads without robust cooling
- Actual power and behavior can vary significantly between laptop designs
Pros
- 16 hybrid cores with strong single‑thread and multi‑thread performance.
- Arc B390 iGPU is a big step up for integrated gaming and content workloads.
- 50 TOPS NPU enables serious AI PC experiences without a discrete GPU.
- Intel 18A and advanced packaging bring good efficiency for the performance level.
- 25–80 W configurable TDP fits a wide range of laptop designs.
Cons
- Confusing X9 vs 9 branding and near‑identical specs to X7 368H make positioning unclear.
- No vPro or embedded support limits use in business and industrial designs.
- iGPU still can’t replace a discrete GPU for high‑refresh 1440p/4K gaming.
- Locked multiplier offers limited overclocking fun.
- Real‑world laptop performance depends heavily on OEM power and thermal tuning.
Competitors & Alternatives
Intel Core Ultra 7 356H
- AMD Ryzen AI 9 HX 370Rival
High-Performance Mobile
- AMD Ryzen 7 8840HSRival
Thin-and-Light Performance
- Intel Core Ultra 7 255HRival
Prior-Gen Mobile
- Intel Core Ultra 9 275HXRival
High-End Mobile
- Compare head-to-headApple M4 ProRival
Premium Thin-and-Light
Same family with more Xe3 iGPU cores for better integrated gaming performance.
Compare head-to-head- Intel Core Ultra 7 265HAlt
Previous-gen Arrow Lake-H option often at lower prices with still-solid performance.
Intel Core Ultra X9 378H
- AMD Ryzen AI 9 365Rival
High-End Mobile / AI PC
- AMD Ryzen AI 9 HX 370Rival
High-End Mobile / Creator + Gaming
- Compare head-to-headIntel Core Ultra X7 368HRival
High-End Mobile / Business + Creator
- Apple M4 Pro (12‑core CPU)Rival
Premium Thin-and-Light / Creator
- Compare head-to-headIntel Core Ultra 9 386HRival
High-End Mobile / vPro Business
- Intel Core Ultra 7 258V / 268V (Lunar Lake)Alt
Lower power and very good efficiency for lighter thin‑and‑light designs where 16 cores are overkill.
Our Verdict on Each
A very capable mobile SoC for users who want strong CPU performance, modern AI acceleration, and good efficiency, but who don’t need the fastest integrated gaming graphics and are comfortable with OEM-configured power limits.
Best for: Premium productivity or AI-focused laptop where you want strong CPU performance, modern NPU, and good efficiency, but don’t rely heavily on integrated gaming graphics.
Read the full reviewA very capable high-end mobile SoC that brings strong multi-threaded performance, a potent integrated GPU and serious AI acceleration to thin laptops, though its confusing naming and near-identical specs to the X7 368H make it hard to justify on price alone.
Best for: Premium thin‑and‑light laptops where strong iGPU, AI features and multi‑threaded performance matter more than ultra‑low price or maximum gaming FPS.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core Ultra 7 356H or Intel Core Ultra X9 378H?
For gaming, the Intel Core Ultra X9 378H leads with a gaming performance score of 78/100 among Intel Core Ultra 7 356H and Intel Core Ultra X9 378H.
Do Intel Core Ultra 7 356H and Intel Core Ultra X9 378H use the same socket?
Yes — all of these CPUs use the FCBGA2540 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core Ultra 7 356H posts the highest multi-core benchmark score. Multi-core results: Intel Core Ultra 7 356H (33,903), Intel Core Ultra X9 378H (0). Benchmark figures are approximate and workload-dependent.