CPU Comparison
Intel Core Ultra 5 338H vs Intel Core Ultra X9 378H
A side-by-side comparison of specs, performance and value. The Intel Core Ultra 5 338H is a 12-core, 12-thread mid-range mobile SoC from Intel’s Panther Lake family, combining four Cougar Cove performance cores, four Darkmont efficient cores, and four low-power efficient cores with integrated Arc B370 Xe3 graphics and a dedicated NPU, aimed at thin-but-powerful laptops that need strong AI and GPU performance without excessive power draw.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- Dedicated NPU 5 with 47 INT8 TOPS accelerates Windows Studio Effects and local AI models.
- CPU and GPU also support DL Boost and XMX-based AI workloads, but TOPS are lower than on higher-end Ultra 7/9 models.
- Well suited for consumer AI features and small models, not for training or large-scale inference.
- 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
- Arc B370 10 Xe3 cores at up to 2.4 GHz deliver roughly 70% more performance than Intel’s previous Arc 140V/140T iGPUs and comfortably outpace AMD’s Radeon 890M in synthetic tests.
- At 35 W, the B370’s Time Spy Graphics score is around 5,933 points, placing it between older RTX 3050 Ti and RTX 4050 laptop GPUs in some scenarios.
- Best suited for 1080p medium settings; more demanding AAA titles may require resolution scaling or lower presets.
- 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
- Major leap in integrated GPU performance vs older Intel iGPUs
- Good single-threaded performance for everyday and lightly threaded workloads
- 12-core design provides solid multi-core throughput for the TDP
- NPU accelerates AI features without heavily loading CPU or GPU
- 25 W base power enables thin-and-light designs with decent battery life
- Modern I/O: PCIe 5.0, Thunderbolt 4, LPDDR5X, Wi-Fi 7 (platform dependent)
Cons
- Not intended for heavy sustained multi-threaded workloads like high-end rendering
- iGPU still falls short of low-end discrete GPUs like RTX 4050 in more demanding games
- Locked multiplier limits overclocking headroom
- Actual performance and thermals depend heavily on laptop OEM power tuning
- New platform; early firmware and drivers may still be maturing
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 5 338H
- AMD Ryzen AI 7 350Rival
Mid-Range Mobile AI APU
- Intel Core Ultra 7 255HRival
Higher-End Panther Lake Mobile
- AMD Ryzen 7 8840HSRival
Mainstream Mobile APU
- Qualcomm Snapdragon X Elite X1E-80-100Rival
Premium Arm-Based Mobile
- Intel Core Ultra 5 228VRival
Lower-Power Lunar Lake Mobile
- Laptop with RTX 4050/5050 discrete GPUAlt
If gaming is your priority and you can tolerate a thicker chassis, a low-end discrete GPU will outperform the Arc B370 iGPU in more demanding titles.
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 well-rounded mid-range mobile SoC that finally delivers competitive integrated graphics and solid multi-core CPU performance in a reasonable power envelope, though its value depends heavily on laptop design and pricing.
Best for: You want a thin-and-light laptop with strong integrated graphics and AI features for light gaming, content creation, and everyday work, and you value battery life more than maximum CPU/GPU performance.
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 better, Intel Core Ultra 5 338H or Intel Core Ultra X9 378H?
Based on our editorial ratings, the Intel Core Ultra X9 378H comes out ahead with a score of 8.4/10. 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 5 338H 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 has more cores?
The Intel Core Ultra X9 378H has the most cores. Core counts: Intel Core Ultra 5 338H (12 cores), Intel Core Ultra X9 378H (16 cores).
Which is faster in multi-core benchmarks?
The Intel Core Ultra X9 378H posts the highest multi-core benchmark score. Multi-core results: Intel Core Ultra X9 378H (0). Benchmark figures are approximate and workload-dependent.