CPU Comparison
Intel Core i5-8350U vs Intel Core i7-8550U
A side-by-side comparison of specs, performance and value. The Intel Core i5-8350U is a quad-core mobile processor from Intel's 8th Generation Kaby Lake-R lineup, engineered for thin-and-light ultrabooks and business laptops. Operating at a base frequency of 1.7 GHz and dynamically boosting up to 3.6 GHz, it utilizes Intel's highly optimized 14nm manufacturing process. The transition from dual-core to quad-core configurations in the U-series was a major leap for mobile productivity, bringing 8 threads to low-power devices. With 6MB of L3 Smart Cache, it ensures efficient task management for everyday office work, heavy web browsing, and moderate multitasking. It integrates Intel UHD Graphics 620, which is sufficient for hardware-accelerated video playback and basic display duties, though not intended for 3D gaming. Maintaining a strict 15W TDP, the i5-8350U balances sustained performance with battery longevity, making it a popular choice for professionals requiring reliable computing power in a portable form factor.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Highly capable for office suites, heavy browsing, and daily multitasking.
Snappy for office applications but throttles under sustained load.
Gaming
Limited to very light or older games due to basic UHD 620 graphics.
Only suitable for very light 2D or older games due to UHD 620 graphics.
Virtualization
Can handle light VMs for development, but limited by thermal constraints.
Can run one light VM, but limited by 15W TDP.
Efficiency
Mature 14nm process offers excellent battery life in ultrabooks.
Excellent idle efficiency and good battery life for ultrabooks.
Specialized Performance
AI / ML
- No dedicated AI hardware
- Relies on CPU AVX2 instructions
- No dedicated AI hardware
- Relies on CPU for basic inference
Content Creation
Gaming
- Relies on Intel UHD Graphics 620
- Only suitable for 2D or highly optimized older games
- Lacks hardware support for modern DirectX 12 Ultimate features
- Relies on Intel UHD Graphics 620
- Can run esports titles on low settings
- Not suitable for AAA gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Reliable quad-core performance for everyday tasks
- High boost clock of 3.6 GHz
- Good multitasking with 8 threads
- Wide compatibility with DDR4 and LPDDR3
Cons
- Built on aging 14nm process
- Weak integrated graphics
- No support for PCIe 4.0
- Quickly overshadowed by Whiskey Lake
Pros
- Brought 4 cores to 15W ultrabooks
- Good single-core burst performance
- Excellent battery life for basic tasks
- Large 8MB L3 cache
Cons
- Low base clock of 1.8 GHz
- Throttles under sustained multi-threaded load
- Basic UHD 620 integrated graphics
- 14nm process is outdated
Competitors & Alternatives
Intel Core i5-8350U
- AMD Ryzen 5 2500URival
Mobile
- AMD Ryzen 7 2700URival
Mobile
- Compare head-to-headIntel Core i7-8550URival
Mobile
- Intel Core i5-8250URival
Mobile
- Intel Core i5-7200URival
Mobile
Better turbo frequencies on Whiskey Lake.
Compare head-to-head- AMD Ryzen 5 3500UAlt
More cores and better Vega graphics.
- Intel Core i3-8130UAlt
Cheaper alternative for basic tasks.
- Alt
Vastly superior battery life and performance.
Compare head-to-head - AMD Ryzen 3 3200UAlt
Budget-friendly with modern Vega graphics.
Intel Core i7-8550U
- AMD Ryzen 7 2700URival
Mobile
- AMD Ryzen 5 2500URival
Mobile
- Intel Core i5-8250URival
Mobile
- Intel Core i7-7500URival
Mobile
- AMD Ryzen 5 3500URival
Mobile
- Intel Core i7-8565UAlt
Whiskey Lake refresh with higher clocks and better sustained performance.
- AMD Ryzen 5 4500UAlt
Much better multi-core performance and efficiency.
11th Gen offers massive IPC and graphics improvements.
Compare head-to-head- Alt
Vastly superior performance and battery life.
Compare head-to-head - AMD Ryzen 7 4700UAlt
8-core alternative with excellent battery life.
Our Verdict on Each
A solid quad-core low-power processor that brought significant multi-threaded gains to ultrabooks, though its integrated graphics remain a limiting factor.
Best for: Purchasing a heavily discounted used business laptop for basic office work.
Read the full reviewA pioneering 15W processor that brought 4 cores to ultrabooks, offering solid multitasking, though its low base clock limits sustained performance.
Best for: If you are considering a laptop with the Core i7-8550U today, it should only be purchased in the used or refurbished market at a significant discount. It remains a capable processor for everyday tasks like web browsing, document editing, and media consumption. The 4-core design ensures it handles basic multitasking without major slowdowns. However, its 14nm architecture and 15W TDP mean it will struggle with any sustained heavy workloads like video editing or modern gaming. Avoid this processor if you need to run demanding software or if battery life is your absolute top priority, as newer chips are far more efficient. It is best suited for budget-conscious buyers or students who need a cheap, reliable secondary machine for schoolwork and everyday use.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-8350U or Intel Core i7-8550U?
Based on our editorial ratings, the Intel Core i7-8550U comes out ahead with a score of 7.5/10. 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 i5-8350U and Intel Core i7-8550U use the same socket?
Yes — all of these CPUs use the Intel BGA 1356 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i5-8350U posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-8350U (6,100). Benchmark figures are approximate and workload-dependent.