Quick Verdict
A reliable processor for its time that brought excellent battery life to ultrabooks, though its dual-core performance is severely outdated today.
Overview
Launch
2013
Status
End-of-lifeGeneration
4th Gen Core i5
Market
Mobile
The Intel Core i5-4350U is a 4th generation Haswell dual-core mobile processor built for ultra-thin laptops, featuring a low 15W TDP and Intel HD Graphics 5000.
The Core i5-4350U was built for the thinnest laptops on the market. With a very low base clock of 1.4 GHz and a 15W TDP, it prioritized power efficiency above all else.
It featured Intel HD Graphics 5000, providing decent multimedia capabilities. While it revolutionized battery life in 2013, it lacks the multi-core power needed for modern demanding workloads.
Specifications
Performance
The 1.4 GHz base clock limits performance under sustained load, though turbo boost helps for short bursts.
Not recommended for virtualization due to dual-core limits and low base clock.
Struggles with most modern games; can only handle very old 2D or lightweight 3D indie titles.
Excellent efficiency for its era, designed specifically to maximize laptop battery life.
- •HD 5000 is better than HD 4400 but still weak for 3D
- •Low base clock can throttle gaming performance
- •Suitable only for retro or extremely lightweight games
- •No AI hardware support
- •Dual-core design makes AI inference extremely slow
Architecture
22nm
Process Node
Haswell
Codename
2C / 4T
Core Config
3 MB
L3 Cache
15 W
TDP
Architecture Overview
The Core i5-4350U leverages the Haswell microarchitecture, optimized for extreme power efficiency. Manufactured on Intel's 22-nanometer Tri-Gate process, it packs 1.4 billion transistors into a 118 mm² die. The processor features a dual-core design with Hyper-Threading, handling 4 threads. To stay within its 15-watt thermal design power, it employs a very low base clock of 1.4 GHz, which can turbo boost up to 2.9 GHz for short periods when thermal headroom permits. This aggressive clock scaling was key to extending battery life in ultrabooks. The chip includes 3 MB of L3 cache and an integrated dual-channel DDR3 memory controller. The graphics architecture is notable; it houses Intel HD Graphics 5000 with 40 execution units. Unlike standard HD 4400 graphics with 20 execution units, the HD 5000 provided significantly more rendering horsepower, allowing thin laptops to handle 4K video playback and light gaming without a discrete GPU. This architecture prioritized Scenario Design Power (SDP) to optimize for typical user workloads rather than sustained maximum loads.
CPU Design
Dual-core, 4 threads, optimized for 15W ultra-low power operation.
Memory Subsystem
Dual-channel DDR3-1600 support.
PCIe & I/O
16 PCIe 2.0 lanes.
Overclocking
Locked multiplier, no overclocking.
- Better graphics performance (HD 5000 vs HD 4000)
- Significantly lower idle power consumption
- Improved instruction per clock (IPC) efficiency
Key Highlights
- Excellent power efficiency for battery life
- Good turbo boost frequency for short tasks
- HD 5000 graphics are capable for media playback
- Low heat output
- Very low 1.4 GHz base clock limits sustained performance
- Only 2 physical cores
- End-of-life and outdated
- Soldered to the motherboard
- Lacks modern security and instruction set support
History
The Core i5-4350U was launched on June 4, 2013, as a direct response to the growing demand for ultra-portable, all-day laptops. <br> Haswell was a pivotal architecture for Intel, focusing heavily on lowering idle power consumption to compete with ARM-based tablets. The 15W TDP of the 4350U made it an ideal candidate for the thinnest devices on the market.
It was famously integrated into the 2013 11-inch MacBook Air, which offered revolutionary battery life for its form factor. The inclusion of HD Graphics 5000 ensured that despite the low power target, the chip could still decode high-resolution video and handle casual gaming better than its predecessors. This processor represents a critical stepping stone in mobile computing, prioritizing efficiency over raw horsepower.
Today, it is considered end-of-life, having paved the way for the highly efficient modern laptop processors we use today.
Improvements over Previous Generation
- Better graphics performance (HD 5000 vs HD 4000)
- Significantly lower idle power consumption
- Improved instruction per clock (IPC) efficiency
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Buying a heavily used, extremely cheap laptop for basic offline typing.
Avoid if…
- Running modern web applications
- Multitasking heavily
- Watching high-res video streams
- Any form of gaming
Use Cases
Interesting Facts
It was notably used in the 2013 11-inch MacBook Air.
The base clock is only 1.4 GHz, but it can boost to 2.9 GHz.
It features HD 5000 graphics, which have 40 execution units.
Despite the 'U' suffix, it supports VT-d virtualization.
The chip is built on the compact 118 mm² die.
It was designed with a Scenario Design Power (SDP) of around 11W.
It supports Intel Quick Sync Video for hardware media encoding.
The part number for this chip is SR16L.
It uses the FC-BGA1168 package.
It can support up to three independent displays.
People Also Ask
Is the Intel Core i5-4350U fast?
For basic 2013-era tasks it is fine, but its 1.4 GHz base clock makes it feel slow by modern standards.
Can you overclock the Core i5-4350U?
No, the multiplier is locked and it is a soldered BGA chip.
What is the TDP of the i5-4350U?
It has a low 15 Watt TDP, designed for maximum battery life.
What graphics does the Core i5-4350U have?
It features Intel HD Graphics 5000 with 40 execution units.
Does the i5-4350U support DDR4?
No, it only supports dual-channel DDR3 memory.
Is the i5-4350U good for gaming?
No, it can only handle extremely old or lightweight games like Minecraft at low settings.
How many cores does the i5-4350U have?
It has 2 physical cores and 4 threads, thanks to Hyper-Threading.
What socket does the i5-4350U use?
It uses the Intel BGA 1168 socket, permanently soldered to the motherboard.
What is the max turbo frequency of the i5-4350U?
The maximum turbo frequency is 2.9 GHz.
Does the i5-4350U support Windows 11?
No, it is not officially supported by Windows 11.
Frequently Asked Questions
When was the Intel Core i5-4350U released?
It was released on June 4th, 2013.
What generation is the Core i5-4350U?
It is a 4th Generation Intel Core processor, codenamed Haswell.
What is the base clock of the i5-4350U?
The base clock is a very low 1.4 GHz to conserve power.
What is the L3 cache size of the i5-4350U?
It has 3 MB of shared L3 cache.
Does the Core i5-4350U support hardware virtualization?
Yes, it supports VT-x and VT-d.
What Macs used the Core i5-4350U?
It was notably used in the 2013 11-inch MacBook Air.
What part number is associated with the i5-4350U?
The part number is SR16L.
Does the i5-4350U have an unlocked multiplier?
No, the multiplier is locked.
Can I upgrade the i5-4350U in my laptop?
No, it is soldered to the motherboard and cannot be upgraded.
Is the i5-4350U good for video editing?
No, it is too slow and limited for modern video editing tasks.