CPU Comparison
Intel Core i5-4258U vs Intel Core i7-4558U
A side-by-side comparison of specs, performance and value. The Intel Core i5-4258U is a high-performance dual-core mobile processor launched in mid-2013 as part of the 4th Generation Core (Haswell) family. Unlike standard U-series chips that operate at 15 watts, this model features a 28-watt TDP, allowing for significantly higher clock speeds and a more powerful integrated graphics solution. It runs at a base clock of 2.4 GHz and can boost up to 2.9 GHz, providing robust single-threaded performance for a mobile chip of its era. The processor supports Hyper-Threading, offering four threads across its two cores. Crucially, it integrates Intel HD Graphics 5100 (Iris Graphics), which features 40 execution units and a higher max dynamic frequency compared to lower-tier models. This made it an ideal choice for premium thin-and-light laptops that required extra graphical horsepower without the need for a discrete GPU, bridging the gap between basic ultrabooks and professional workstations.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
High clocks helped single-threaded apps.
High clock speeds ensure good performance in office apps.
Gaming
Iris 5100 allowed for decent 720p gaming.
Iris 5100 allows for playable frame rates in older or well-optimized games.
Virtualization
Adequate for light VMs.
Capable of running one light VM, but limited by 2 cores.
Efficiency
Higher power draw than 15W chips.
28W TDP is warmer than 15W parts but justified by performance.
Specialized Performance
AI / ML
- No AI hardware.
- No dedicated AI hardware
Content Creation
Gaming
- Iris 5100 was good for integrated graphics in 2013.
- Iris 5100 is a major step up from HD 4400
- Can run older games at low settings
- Not suitable for modern AAA titles
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Iris 5100 graphics
- 28W TDP for sustained performance
- 2.4 GHz base clock
- Great for 2013 MacBook Pro
Cons
- Obsolete dual-core
- Soldered BGA
- Runs warmer than 15W chips
- No Windows 11 support
Pros
- High 3.3 GHz boost clock
- Iris 5100 graphics with eDRAM
- 28W TDP allows good sustained performance
- Excellent single-core speed
Cons
- Runs warmer than 15W U-series chips
- Soldered to motherboard
- 22nm process is outdated
- Only 2 cores
Competitors & Alternatives
Intel Core i5-4258U
- AMD A10-5750MRival
Mobile
- Compare head-to-headIntel Core i7-4558URival
Mobile
- Compare head-to-headIntel Core i5-4288URival
Mobile
- Compare head-to-headIntel Core i5-3210MRival
Mobile
- AMD A8-5557MRival
Mobile
- Intel Core i5-4278UAlt
Faster refresh model.
- Alt
Modern replacement for the MacBook Pro line.
Compare head-to-head - Intel Core i5-8259UAlt
Modern 28W quad-core alternative.
- AMD Ryzen 5 3500UAlt
Modern budget alternative with Vega graphics.
Intel Core i7-4558U
- AMD A10-5745MRival
Mobile
- Compare head-to-headIntel Core i7-4500URival
Mobile
- AMD A8-5557MRival
Mobile
- Compare head-to-headIntel Core i5-4258URival
Mobile
- AMD A10-5757MRival
Mobile
- Intel Core i7-5557UAlt
5th Gen successor with Iris 6100 graphics.
- Alt
Vastly superior performance and efficiency for Mac users.
Compare head-to-head - AMD Ryzen 7 4800UAlt
Much better multi-core performance in a similar power bracket.
Modern alternative with massive IPC and graphics improvements.
Compare head-to-head- AMD Ryzen 5 5500UAlt
Modern budget alternative with 6 cores.
Our Verdict on Each
Excellent performance and graphics for 2013, but outclassed by modern integrated solutions.
Best for: Used MacBook Pro for cheap typing
Read the full reviewA premium 28W mobile CPU that combined high clock speeds with Iris graphics, delivering an excellent balance of CPU and GPU performance for 2013.
Best for: If you are considering a laptop with the Intel Core i7-4558U, you are likely looking at a used MacBook Pro or a premium ultrabook. This processor remains capable for everyday productivity, programming, and light 1080p video editing. The inclusion of Iris 5100 graphics provides a noticeable boost in graphical tasks compared to standard U-series chips. It is an excellent choice for users who need a compact, moderately powerful machine without paying the premium for modern hardware. However, be aware that it is an older Intel-based Mac, meaning it will eventually lose macOS support. Avoid this processor if you need to run modern AAA games or heavy 3D rendering workloads. It is best purchased at a discount for general use.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-4258U or Intel Core i7-4558U?
Based on our editorial ratings, the Intel Core i5-4258U comes out ahead with a score of 6/10. 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 i5-4258U or Intel Core i7-4558U?
For gaming, the Intel Core i5-4258U leads with a gaming performance score of 35/100 among Intel Core i5-4258U and Intel Core i7-4558U.
Do Intel Core i5-4258U and Intel Core i7-4558U use the same socket?
Yes — all of these CPUs use the Intel BGA 1168 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i5-4258U posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-4258U (3,400). Benchmark figures are approximate and workload-dependent.