CPU Comparison
Intel Core i7-8550U vs Intel Core i3-1120G4
A side-by-side comparison of specs, performance and value. The Intel Core i7-8550U is an ultra-low power mobile processor launched in August 2017 as part of the 8th Generation Kaby Lake-U Refresh family. Designed for thin-and-light laptops, it marked a significant milestone by introducing 4 cores and 8 threads to the 15-watt TDP category, a substantial upgrade from the dual-core designs of previous generations. Built on Intel's 14nm process, it operates at a base clock of 1.8 GHz and can boost up to 4.0 GHz. The processor features 8MB of L3 cache, doubling the cache size of its 7th Gen predecessors. It integrates Intel UHD Graphics 620 for basic multimedia tasks and hardware-accelerated video decoding. While its low base clock limits performance under sustained multi-threaded loads, the aggressive turbo boost ensures snappy responsiveness for everyday productivity. The i7-8550U became one of the most popular ultrabook processors of its era, powering countless mainstream laptops and bringing true quad-core performance to the portable form factor.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Snappy for office applications but throttles under sustained load.
Good for bursty office tasks due to 4 cores, but the 1.1 GHz base clock means it drops to very low performance during sustained workloads.
Gaming
Only suitable for very light 2D or older games due to UHD 620 graphics.
The Iris Xe G4 graphics can handle light tasks, but the thermally constrained environment prevents sustained GPU frequencies.
Virtualization
Can run one light VM, but limited by 15W TDP.
8 threads are nice on paper, but the thermal limits prevent running VMs effectively for any length of time.
Efficiency
Excellent idle efficiency and good battery life for ultrabooks.
Extremely efficient at idle and low loads due to the 1.1 GHz base clock, perfect for always-connected devices.
Specialized Performance
AI / ML
- No dedicated AI hardware
- Relies on CPU for basic inference
- No dedicated IPU or NPU
- AVX-512 support present but limited by thermal constraints
- Not suited for AI workloads
Content Creation
Gaming
- Relies on Intel UHD Graphics 620
- Can run esports titles on low settings
- Not suitable for AAA gaming
- Thermal constraints prevent sustained GPU performance
- G4 tier graphics are already limited
- Not designed or marketed for gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
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
Pros
- 4 cores provide good burst multi-threading
- 1.1 GHz base enables ultra-thin, fanless designs
- 16 PCIe 4.0 lanes for fast storage
- Very high efficiency at low loads
- 8MB L3 cache is generous for the segment
Cons
- 1.1 GHz base clock causes severe performance drops under sustained load
- BGA 1598 socket limits motherboard and upgrade options
- No LPDDR4X support limits memory bandwidth
- 3.5 GHz boost is the lowest among 4-core Tiger Lake parts
- Lacks IPU 6.0 found on other similar-tier parts
Competitors & Alternatives
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.
Intel Core i3-1120G4
- AMD Ryzen 3 5300URival
Mobile
- Compare head-to-headApple M1Rival
Mobile
- Qualcomm Snapdragon 8cx Gen 2Rival
Mobile
- AMD Ryzen 3 3250URival
Mobile
- Intel Pentium Silver N6005Rival
Mobile
Standard BGA 1449 socket with much higher clocks and IPU support for a similar core count.
Compare head-to-head- AMD Ryzen 5 5500UAlt
If you can accept a slightly thicker laptop, you get dramatically better sustained performance.
- Intel Core i5-1130G4Alt
Slightly higher clocks on the same BGA 1598 platform if available.
Our Verdict on Each
A 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 reviewAn unusual 4-core Tiger Lake part severely limited by its 1.1 GHz base clock and BGA 1598 socket, making it a niche OEM component rather than a general-purpose mobile processor.
Best for: Purchasing a premium ultra-thin laptop or tablet where this chip is factory-installed and you value extreme portability over performance.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-8550U or Intel Core i3-1120G4?
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.
Which is faster for gaming, Intel Core i7-8550U or Intel Core i3-1120G4?
For gaming, the Intel Core i7-8550U leads with a gaming performance score of 35/100 among Intel Core i7-8550U and Intel Core i3-1120G4.
Do Intel Core i7-8550U and Intel Core i3-1120G4 use the same socket?
No. They use different sockets (Intel Core i7-8550U: Intel BGA 1356, Intel Core i3-1120G4: BGA 1598), so each needs a compatible motherboard.