CPU Comparison
Intel Core i5-1135G7 vs Intel Core i3-1125G4
A side-by-side comparison of specs, performance and value. The Intel Core i5-1135G7 is a 4-core, 8-thread mobile processor launched in September 2020. Built on the 10nm SuperFIN process, it utilizes the Willow Cove microarchitecture. Designed for thin-and-light laptops, it operates at a 15W TDP with a base clock of 1.5 GHz and a turbo boost up to 4.2 GHz. It features the highly capable Iris Xe Graphics G7 with 80 Execution Units, bringing significant gaming and media improvements to the ultrabook segment.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Snappy performance for everyday office tasks and multitasking.
Four cores handle office suites, video conferencing, and moderate multitasking with ease.
Gaming
Capable of playing e-sports titles and older games at 1080p thanks to Iris Xe graphics.
The Iris Xe GPU can handle e-sports titles like League of Legends and CS:GO at 1080p low, but it is not meant for modern AAA gaming.
Virtualization
Can handle light virtualization but is limited by 4 cores.
Can run a single lightweight virtual machine or Docker containers, but 8 threads limit heavy virtualization.
Efficiency
Excellent power efficiency due to the 10nm SuperFIN process.
Excellent power efficiency when paired with LPDDR4X memory, allowing for long battery life in ultrabooks.
Specialized Performance
AI / ML
- DLBoost and GNA 2.0 provide solid AI acceleration for background blur and noise cancellation.
- No dedicated NPU
- DLBoost provides some AI inference acceleration but is largely superseded by modern standards
Content Creation
Gaming
- Iris Xe 80EU allows for smooth e-sports gaming.
- Performance scales heavily with dual-channel memory.
- Not suitable for modern AAA gaming at high settings.
- Playable frame rates in older e-sports titles at 1080p low settings
- Not suitable for modern AAA games
- Performance varies heavily based on laptop cooling and cTDP settings
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent single-core performance
- Massive leap in integrated graphics (Iris Xe 80EU)
- Great power efficiency
- Supports fast LPDDR4X-4267 memory
- Includes PCIe 4.0 for fast storage
Cons
- Limited to 4 cores
- Integrated graphics still weaker than entry-level discrete GPUs
- Soldered onto the motherboard (BGA package)
- Replaced quickly by 12th Gen P-series and U-series
Pros
- 4 cores and 8 threads provide solid multitasking capability
- Iris Xe-LP graphics are highly capable for integrated silicon
- Configurable TDP allows balance between battery life and performance
- Supports both DDR4 and power-efficient LPDDR4X
- PCIe 4.0 support for fast storage
Cons
- Now end-of-life and superseded by 12th-gen parts
- Single-thread performance is lower than newer Alder Lake chips
- No hybrid core architecture like subsequent generations
- 28 W PL2 is relatively low for sustained performance bursts
- Only 8 threads limit heavy professional workloads
Competitors & Alternatives
Intel Core i5-1135G7
- AMD Ryzen 5 5500URival
Mobile
- AMD Ryzen 7 5700URival
Mobile
- Compare head-to-headIntel Core i5-1035G1Rival
Mobile
- Intel Core i7-1165G7Rival
Mobile
- Compare head-to-headApple M1Rival
Mobile
- AMD Ryzen 5 5600UAlt
Provides better multi-core performance with 6 cores.
Budget alternative with 2 cores for basic office tasks.
Compare head-to-head- AMD Ryzen 7 5800UAlt
Excellent 8-core alternative for heavy multitasking.
Newer 12th gen alternative with more cores and better efficiency.
Compare head-to-head
Intel Core i3-1125G4
- AMD Ryzen 3 5400URival
Mainstream Mobile
- AMD Ryzen 5 5500URival
Performance Mobile
- Compare head-to-headIntel Core i5-1135G7Rival
Premium Thin-and-Light
- Compare head-to-headApple M1Rival
ARM Premium Laptop
- Qualcomm Snapdragon 7c Gen 2Rival
Always Connected PC
The direct 12th-gen successor featuring hybrid P-cores and E-cores for much better multi-threaded performance.
Compare head-to-head- AMD Ryzen 7 5700UAlt
An 8-core option for users needing maximum battery life and multi-core performance in a thin laptop.
Our Verdict on Each
A breakthrough mobile chip that brought console-like integrated graphics to thin-and-light laptops, though limited to 4 cores.
Best for: Buying a mid-range ultrabook for everyday use and light gaming.
Read the full reviewThe i3-1125G4 was an excellent mainstream mobile processor in 2021, bringing 4 cores and 8 threads to the i3 laptop tier alongside a significant iGPU upgrade, though it has since been surpassed by 12th-gen parts.
Best for: You should only consider buying a laptop with the i3-1125G4 today if it is being offered at a significant, heavily discounted clearance price. At launch, it was a fantastic chip for students and office workers, offering enough power for daily tasks and capable integrated graphics. However, as an end-of-life product, paying standard retail pricing for it is unwise. The newer 12th-generation i3-1215U offers hybrid P-cores and E-cores for similar money, providing much better performance and longevity. If you find a used 1125G4 laptop incredibly cheap, it remains a perfectly viable machine for web browsing and document editing.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-1135G7 or Intel Core i3-1125G4?
Based on our editorial ratings, the Intel Core i5-1135G7 comes out ahead with a score of 8.5/10. 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 i5-1135G7 or Intel Core i3-1125G4?
For gaming, the Intel Core i5-1135G7 leads with a gaming performance score of 75/100 among Intel Core i5-1135G7 and Intel Core i3-1125G4.
Do Intel Core i5-1135G7 and Intel Core i3-1125G4 use the same socket?
No. They use different sockets (Intel Core i5-1135G7: Intel BGA 1449, Intel Core i3-1125G4: BGA 1449), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i3-1125G4 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-1135G7 (0), Intel Core i3-1125G4 (8,500). Benchmark figures are approximate and workload-dependent.