CPU Comparison
Apple M1 vs Core i5-1245U
A side-by-side comparison of specs, performance and value. The Apple M1 is an 8-core ARM-based system-on-a-chip (SoC) that marked Apple’s transition from Intel to its own Apple Silicon for the Mac, combining four high‑performance and four efficiency cores, an 8‑core integrated GPU, and a 16‑core Neural Engine on a 5 nm process.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Very responsive for everyday tasks, Xcode builds, and light creative work; benefits from fast single‑core and SSD, but heavy multi‑thread workloads are constrained by 8 threads.
Excellent for office apps, heavy browsing, and light coding.
Gaming
Competent for 1080p gaming in macOS and via Rosetta 2 for many titles, but the 8‑core GPU and 8–16 GB memory limit modern AAA performance and resolution scaling.
Good for casual and older titles at 1080p low settings.
Virtualization
Capable for a couple of light VMs, but not ideal for large parallel VM farms due to core count and memory ceiling.
Can handle light VMs, but memory bandwidth is a limit.
Efficiency
Outstanding performance per watt; MacBook Air and 13‑inch MacBook Pro with M1 delivered dramatically better battery life and lower heat than comparable Intel Macs.
Dynamic power management ensures excellent battery life.
Specialized Performance
AI / ML
- 16‑core Neural Engine accelerates Core ML models
- CPU and GPU also provide ML accelerators for framework‑level ops
- Not designed for large‑scale training or server‑side inference
- Intel GNA 3.0 for background AI tasks
Content Creation
Gaming
- 8‑core GPU comparable to low‑end discrete GPUs of its era in some Metal titles
- Rosetta 2 adds overhead for x86 games; some titles have compatibility or performance quirks
- 16 GB memory limit and 8 GPU cores cap texture resolutions and frame rates in modern AAA games
- Can run eSports titles at 60fps
- Shares system memory, so RAM speed affects FPS
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent single‑thread performance and responsiveness
- Outstanding performance per watt and battery life
- Integrated GPU much faster than old Intel UHD/Iris in Macs
- Unified memory simplifies development and improves efficiency
- Silent, fanless operation in MacBook Air and Mac mini under light loads
- Strong on‑device ML inference via Neural Engine
Cons
- Only 8 CPU threads; heavy multi‑thread workloads can hit a ceiling
- Max 16 GB unified memory; not user‑upgradeable
- No eGPU support and limited PCIe expansion
- Rosetta 2 translation layer for some x86 apps; not all software is native
- Newer M2/M3 chips and modern x86 CPUs offer more cores, higher clocks, and better GPU performance
Pros
- Excellent balance of performance and 15W power draw
- 10 cores for heavy multitasking
- Supports fast DDR5 memory
- Strong single-core performance for an ultrabook chip
- Good integrated graphics
Cons
- Not suitable for heavy gaming
- Locked multiplier
- Soldered to motherboard
- Can run warm under sustained all-core loads
Competitors & Alternatives
Apple M1
- Intel Core i7-1165G7Rival
Thin‑and‑Light Laptop
- AMD Ryzen 7 5800URival
Thin‑and‑Light Laptop
- Compare head-to-headIntel Core i5-1135G7Rival
Thin‑and‑Light Laptop
- AMD Ryzen 5 4600HRival
Performance Laptop
- Compare head-to-headIntel Core i7-11800HRival
High‑Performance Laptop
- Alt
Same platform with ~18% faster CPU, 35% faster GPU, and support for up to 24 GB unified memory.
Compare head-to-head - Alt
More CPU/GPU cores and higher memory bandwidth for heavier creative workloads.
Compare head-to-head - AMD Ryzen 7 6800UAlt
Modern x86 laptop CPU with higher multi‑thread performance and DDR5 memory.
Higher core count and better sustained multi‑thread performance in thin laptops.
Compare head-to-head- Alt
Newer architecture with better GPU and CPU performance per watt and improved media engines.
Compare head-to-head
Core i5-1245U
- AMD Ryzen 5 5625URival
Mobile
- AMD Ryzen 7 5825URival
Mobile
- Compare head-to-headIntel Core i7-1255URival
Mobile
- Compare head-to-headIntel Core i5-1235URival
Mobile
- Compare head-to-headApple M1Rival
Mobile
Better graphics and slightly higher clocks for premium ultrabooks.
Compare head-to-headMore P-cores for better sustained performance.
Compare head-to-head- Intel Core i5-1230UAlt
Lower TDP variant for ultimate portability.
Budget alternative for basic office tasks.
Compare head-to-head
Our Verdict on Each
A landmark chip that delivered class‑leading efficiency and single‑thread speed for thin laptops, still very capable for most users but increasingly outdated compared to M2/M3 and modern x86 rivals in multi‑thread and GPU workloads.
Best for: Used or refurbished M1 MacBook Air / Mac mini for general use, study, or light creative work at a low price
Read the full reviewA highly efficient U-series processor that hits the sweet spot for everyday productivity and portable computing.
Best for: Mainstream thin-and-light laptops
Read the full reviewFrequently Asked Questions
Which is better, Apple M1 or Core i5-1245U?
Based on our editorial ratings, the Apple M1 comes out ahead with a score of 8.8/10. 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, Apple M1 or Core i5-1245U?
For gaming, the Apple M1 leads with a gaming performance score of 72/100 among Apple M1 and Core i5-1245U.
Which uses less power?
The Core i5-1245U has the lowest rated TDP. Power draw across these chips: Core i5-1245U (15 W).
Do Apple M1 and Core i5-1245U use the same socket?
No. They use different sockets (Apple M1: On-package (BGA-style, not user-replaceable), Core i5-1245U: Intel BGA 1744), so each needs a compatible motherboard.
Which has more cores?
The Core i5-1245U has the most cores. Core counts: Apple M1 (8 cores), Core i5-1245U (10 cores).
Which is faster in multi-core benchmarks?
The Apple M1 posts the highest multi-core benchmark score. Multi-core results: Apple M1 (7,404), Core i5-1245U (0). Benchmark figures are approximate and workload-dependent.