CPU Comparison
Intel Core i5-8265U vs Core i7-8665U
A side-by-side comparison of specs, performance and value. The Intel Core i5-8265U is a 4-core, 8-thread low-power mobile processor from the Whiskey Lake family, designed for thin-and-light laptops prioritizing battery life.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Good for daily office tasks and web apps.
Gaming
Only capable of very light or old games.
Virtualization
Can run light VMs but limited by RAM and power.
Efficiency
Excellent efficiency for all-day battery life.
Specialized Performance
AI / ML
- Not suitable for AI workloads
No data
Content Creation
No data
Gaming
- Integrated graphics too weak for modern gaming
- Good for indie games
- No dedicated gaming features
No data
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent power efficiency
- 4 cores and 8 threads
- Good burst performance
- Wide OEM adoption
Cons
- Soldered to motherboard
- Weak integrated graphics
- Only PCIe 3.0
- End-of-life
Pros
- Excellent single-core burst speed
- Includes Intel vPro for remote management
- Low 15W TDP
- Great for business productivity
Cons
- Throttles under sustained load
- Only 4 cores
- More expensive than consumer equivalents
- Soldered BGA package
Competitors & Alternatives
Intel Core i5-8265U
- AMD Ryzen 5 3500URival
Thin-and-Light Mobile
- Intel Core i7-8565URival
Thin-and-Light Mobile
- AMD Ryzen 7 3700URival
Thin-and-Light Mobile
- Intel Core i5-8250URival
Thin-and-Light Mobile
- AMD Ryzen 5 2500URival
Thin-and-Light Mobile
Slightly faster with better efficiency.
Compare head-to-headModern dual-core with vastly better single-core speed.
Compare head-to-head- AMD Ryzen 5 5500UAlt
Hex-core mobile chip with much better performance.
Massive IPC and iGPU upgrade with modern features.
Compare head-to-head
Core i7-8665U
- AMD Ryzen 7 PRO 2700URival
Ultra-Low Power Mobile
- Intel Core i7-8565URival
Ultra-Low Power Mobile
- AMD Ryzen 7 PRO 3700URival
Ultra-Low Power Mobile
- Compare head-to-headIntel Core i5-8365URival
Ultra-Low Power Mobile
- Compare head-to-headIntel Core i7-8650URival
Ultra-Low Power Mobile
Next-gen 6-core enterprise alternative.
Compare head-to-head
Our Verdict on Each
A reliable and efficient mobile CPU that brought 4 cores to thin-and-light laptops, still serviceable for basic tasks today.
Best for: Buying a cheap used laptop for basic tasks
Read the full reviewThe i7-8665U offers top-tier ultrabook performance with the crucial addition of vPro for enterprise manageability.
Best for: Buying a used enterprise laptop (ThinkPad, Latitude)
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-8265U or Core i7-8665U?
Based on our editorial ratings, the Core i7-8665U comes out ahead with a score of 8.2/10. 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 i5-8265U or Core i7-8665U?
For gaming, the Intel Core i5-8265U leads with a gaming performance score of 20/100 among Intel Core i5-8265U and Core i7-8665U.
Do Intel Core i5-8265U and Core i7-8665U use the same socket?
Yes — all of these CPUs use the Intel BGA 1528 socket, so they share compatible motherboards.