Quick Verdict
An impressive ultra-low-power chip that enables true fanless designs and multi-day battery life, though its raw performance is strictly limited to basic tasks.
Overview
Launch
Dec 14th, 2023
Status
ActiveGeneration
Ultra 5 (Meteor Lake)
Market
Mobile
The Intel Core Ultra 5 134U is an ultra-low-power mobile processor launched in December 2023 as part of the Meteor Lake family. Designed for the most thermally constrained devices, such as ultra-thin laptops and tablets, it operates at a remarkably low base TDP of just 9W. Despite its low power envelope, it maintains a 12-core hybrid architecture, featuring 2 P-cores, 8 E-cores, and 2 Low-Power E-cores (LP E-cores) for a total of 14 threads. The base clock is set at an extremely conservative 700 MHz, but the processor can boost up to 4.4 GHz when performance is required. Built on a combination of Intel’s 7nm compute tile and TSMC’s SOC and graphics tiles, it prioritizes battery preservation above all else. The integrated Arc Xe-LPG graphics feature 64 Execution Units, and an 11 TOPS NPU handles basic AI workloads. This processor is strictly for everyday tasks, prioritizing mobility and sustained battery life over raw computational power.
The Core Ultra 5 134U is engineered for absolute power efficiency, operating at a mere 9W base TDP. Built on Meteor Lake architecture, it features 12 cores (2 P-cores, 8 E-cores, 2 LP E-cores) and 14 threads. While its base clock is a mere 700 MHz, it can boost up to 4.
4 GHz for short bursts to handle sudden workloads. The 64 EU Arc graphics and 11 TOPS NPU are perfectly adequate for media playback and background AI tasks. This processor is the go-to choice for Windows tablets and ultra-portables where silent operation and maximum battery life are more important than computational speed.
Specifications
Performance
Adequate for basic office tasks, but will slow down under heavy multitasking or large file processing.
Not recommended for virtualization due to the 9W power limit and low base clocks.
Not suitable for modern gaming. Can handle 2D indie games and very old titles.
Industry-leading efficiency. Can achieve multiple days of battery life in tablet form factors.
- •Only suitable for 2D or casual mobile games
- •Graphics throttle quickly due to 9W limit
- •Not designed for 3D gaming
- •11 TOPS NPU handles basic background AI efficiently
- •Does not meet Copilot+ PC requirements
- •NPU prioritized for battery saving over performance
Architecture
Intel 4 (7nm)
Process Node
Meteor Lake
Codename
12C / 14T
Core Config
12 MB
L3 Cache
9 W
TDP
Architecture Overview
The architecture of the Core Ultra 5 134U is a masterclass in power scaling within the Meteor Lake disaggregated design. Utilizing the Intel 4 (7nm) process for the compute tile, it houses 2 "Redwood Cove" P-cores and 8 "Crestmont" E-cores. The 2 LP E-cores on the TSMC N6 SOC tile are particularly vital in this 9W envelope, ensuring that background tasks like audio playback or downloads do not wake the main compute tiles. The L3 cache is limited to 12MB, and the P-cores support Hyper-Threading, yielding 14 total threads. The integrated Arc Xe-LPG graphics are configured with 64 Execution Units, operating at a dynamic frequency of 1750 MHz. Memory support is restricted to LPDDR5x at 6400 MT/s, optimizing for power efficiency over peak bandwidth. The NPU delivers 11 TOPS of AI compute. This configuration allows the 134U to deliver responsive burst performance while maintaining the exceptionally low idle power consumption required for fanless designs.
CPU Design
2 Redwood Cove P-cores, 8 Crestmont E-cores, and 2 LP E-cores optimized for 9W.
Memory Subsystem
Exclusively supports LPDDR5x at 6400 MT/s for maximum power savings.
PCIe & I/O
Limited to 8 PCIe 4.0 lanes for essential storage and peripherals.
Overclocking
Locked multiplier.
- Significantly lower base TDP (9W vs 15W)
- Disaggregated chiplet design for better idle efficiency
- Introduction of Arc Xe-LPG graphics
- First inclusion of an integrated NPU
Key Highlights
- Extremely low 9W power consumption
- Enables fanless, silent designs
- Excellent for media consumption
- Multi-day battery life potential
- Surprisingly capable 12-core burst performance
- Very low base clock of 700 MHz
- Throttles quickly under sustained load
- Not suitable for productivity power users
- Limited to LPDDR5x memory
History
The Core Ultra 5 134U was introduced in December 2023 to address the niche but growing market for ultra-mobile, fanless Windows devices. Historically, Intel’s Y-series processors fulfilled this role, but the 134U rebranded this tier under the Core Ultra umbrella. It arrived at a time when ARM-based competitors, particularly Apple’s M-series, were dominating the ultra-thin form factor with exceptional efficiency.
The 134U was Intel’s aggressive countermeasure, dropping the base TDP to just 9W to enable true all-day battery life in Windows tablets and ultra-portables. By utilizing the advanced Foveros packaging of Meteor Lake, Intel could isolate the low-power SOC tile to handle menial tasks, drastically reducing the platform's idle power draw. While its 11 TOPS NPU was modest, it ensured that even the lowest-power Intel devices were equipped for the emerging AI PC era.
The 134U represents a critical step in Intel’s roadmap to reclaim territory in the ultra-mobile segment traditionally dominated by ARM architecture.
Improvements over Previous Generation
- Significantly lower base TDP (9W vs 15W)
- Disaggregated chiplet design for better idle efficiency
- Introduction of Arc Xe-LPG graphics
- First inclusion of an integrated NPU
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Ultra-thin Windows tablets or fanless 2-in-1 laptops
Avoid if…
- You need to run heavy software
- You want to play 3D games
- You require fast compile times for development
Use Cases
Interesting Facts
The Core Ultra 5 134U has a base TDP of just 9 Watts, making it one of the most efficient x86 processors ever created.
Its base clock speed of 700 MHz is deliberately low to conserve power during extremely light workloads.
It uses a different socket (BGA 2551) than its higher-wattage Meteor Lake siblings.
The processor is designed to operate completely fanlessly, relying on passive cooling.
It only supports LPDDR5x memory at 6400 MT/s, prioritizing power efficiency over maximum bandwidth.
Despite its low power limit, it can still boost up to 4.4 GHz for short bursts to handle demanding single-threaded tasks.
It includes 2 Low-Power E-cores that are essential for maintaining battery life during background tasks on ultra-thin devices.
The chip was launched as a direct successor to Intel's 13th Gen U-series and Y-series processors.
The integrated graphics run at a dynamic frequency of 1750 MHz, lower than the 125U to save power.
It features a 12-core, 14-thread design, meaning it retains Hyper-Threading on its 2 P-cores despite the restricted power envelope.
People Also Ask
Is the Core Ultra 5 134U fanless?
Yes, laptops and tablets featuring this chip are almost always designed to be fanless due to the 9W TDP.
Can the Core Ultra 5 134U handle video editing?
It can manage very basic 1080p editing, but it will struggle significantly with 4K footage.
What is the difference between the 134U and 125U?
The 134U has a lower base TDP (9W vs 15W), a lower base clock, and uses the BGA 2551 socket instead of BGA 2049.
Does the Core Ultra 5 134U support Copilot+ PCs?
No, its NPU only provides 11 TOPS, which is below the 40 TOPS requirement for Copilot+.
What is the L3 cache size of the Core Ultra 5 134U?
It has a 12 MB shared L3 cache.
What is the launch price of the Core Ultra 5 134U?
The launch price was $332 USD.
Does the Core Ultra 5 134U support DDR5 memory?
No, it only supports soldered LPDDR5x memory at 6400 MT/s.
What are the Low-Power E-cores in the 134U?
They are efficiency cores on the SOC tile designed to handle background tasks to maximize battery life.
Is the Core Ultra 5 134U better than Apple's M2?
In terms of raw efficiency and battery life, Apple's M2 still holds an edge, but the 134U offers better compatibility with legacy x86 Windows applications.
Can I build a desktop PC with the Core Ultra 5 134U?
No, it is a mobile-only BGA processor soldered directly to laptop and tablet motherboards.
Frequently Asked Questions
What is the TDP of the Core Ultra 5 134U?
It has an extremely low base TDP of 9W, with a maximum power draw of 30W.
What is the base clock speed of the Core Ultra 5 134U?
The base clock speed is 700 MHz for the P-cores.
What is the maximum turbo frequency of the Core Ultra 5 134U?
The processor can boost up to 4.4 GHz.
How many cores and threads does the Core Ultra 5 134U have?
It has 12 cores (2 P-cores, 8 E-cores, 2 LP E-cores) and 14 threads.
What type of memory does the Core Ultra 5 134U support?
It exclusively supports LPDDR5x memory at 6400 MT/s.
What integrated graphics are included in the Core Ultra 5 134U?
It features Intel Arc Xe-LPG graphics with 64 Execution Units.
Does the Core Ultra 5 134U have an NPU?
Yes, it includes a dedicated NPU with 11 TOPS of AI performance.
What socket does the Core Ultra 5 134U use?
It uses the Intel BGA 2551 socket, designed for ultra-compact motherboards.
Is the Core Ultra 5 134U good for gaming?
No, it is only suitable for very light, older games or casual 2D games due to its 9W power limit.
Can the Core Ultra 5 134U be overclocked?
No, the multiplier is locked and it is designed for stability and efficiency.