Quick Verdict
A pioneering ultra-low voltage CPU for 2010, but entirely obsolete for modern computing needs.
Overview
Launch
2010
Status
End-of-lifeGeneration
Core i7 (Arrandale)
Market
Mobile
The Intel Core i7-620UM is an ultra-low voltage mobile processor launched in January 2010 as part of the Arrandale family. Designed for the thinnest and lightest laptops of its era, it operates on a stringent 18W TDP to maximize battery life. The processor features 2 cores and 4 threads, leveraging Hyper-Threading to improve multitasking efficiency. It runs at a conservative base clock of 1.067 GHz but can dynamically boost up to 2.133 GHz using Intel's Turbo Boost technology when demanding applications require it. Built on a 32nm process for the CPU and 45nm for the integrated graphics and memory controller, it housed 4 MB of Smart Cache. The integrated HD Graphics (Ironlake) provided basic display capabilities. While completely outclassed by modern ultra-portable chips, the 620UM was a vital stepping stone in the evolution of the ultrabook, bringing Core i7 branding and reasonable performance to sub-inch-thick laptops.
Launched in early 2010, the Intel Core i7-620UM targeted the premium ultra-portable laptop market with its 18W TDP. Based on the 32nm Arrandale architecture, it featured 2 cores, 4 threads, and 4MB of L3 cache. The processor ran at a low 1.
067 GHz base clock to conserve power, boosting up to 2.133 GHz via Turbo Boost. It integrated HD Graphics (Ironlake) on a 45nm die within the same package.
While it was a significant step forward for thin-and-light laptops in 2010, enabling longer battery life without completely sacrificing performance, it is thoroughly obsolete today and unsuitable for modern web browsing or software.
Specifications
Performance
Will struggle immensely with modern web and software.
Lacks the power for practical virtualization.
No modern gaming capabilities.
Good for 2010, obsolete now.
- •Ironlake graphics are insufficient for any 3D gaming.
- •No AI capabilities.
Architecture
32nm (CPU) / 45nm (IMC/GPU)
Process Node
Arrandale
Codename
2C / 4T
Core Config
4 MB
L3 Cache
18 W
TDP
Architecture Overview
The Core i7-620UM employs the Arrandale dual-die system-in-package design. The 32nm CPU die contains the dual-core processor and 4 MB of L3 Smart Cache, while the 45nm die integrates the memory controller and HD Graphics. This ultra-low voltage variant is heavily optimized for power conservation, featuring aggressive clock gating and low-voltage operating states. Despite its low 18W TDP, the architecture retains support for Hyper-Threading, allowing two physical cores to process four threads. The integrated graphics feature a dynamic frequency range of 166-500 MHz, scaling strictly based on thermal constraints. Dual-channel DDR3-1066 memory support ensures adequate bandwidth for everyday tasks. The architecture also includes AES-NI for hardware-accelerated encryption, a significant feature for enterprise users. The design was a critical evolutionary step toward Intel's eventual fully integrated solutions, proving that Core i7 performance could be scaled down into ultra-portable form factors.
CPU Design
Dual-core 32nm Westmere core optimized for 18W operation.
Memory Subsystem
Dual-channel DDR3-1066 controller.
PCIe & I/O
PCIe 2.0 support.
Overclocking
Locked.
- Turbo Boost
- Hyper-Threading
- AES-NI
- Higher IPC
Key Highlights
- Very low 18W TDP
- Good battery life for 2010
- Hyper-Threading support
- AES-NI for encryption
- Extremely low performance
- Obsolete graphics
- Soldered to motherboard
- Cannot handle modern web
History
The Core i7-620UM launched in January 2010 as Intel sought to conquer the ultra-portable laptop market. Previously, ultra-thin laptops relied on older Core 2 Duo architecture, limiting performance. The 620UM brought the new Nehalem-derived Arrandale architecture to the 18W power envelope.
This was a critical evolution, proving that Intel could deliver 'Core i7' performance in fanless or ultra-thin designs. The multi-chip package approach was a stepping stone toward full System-on-Chip (SoC) integration. While the integrated Ironlake graphics were weak, the CPU itself offered a significant leap in responsiveness for mobile professionals.
This processor directly set the stage for the Ultrabook category launched in 2011, establishing the thermal and power efficiency targets that would define the next decade of thin-and-light laptop design.
Improvements over Previous Generation
- Turbo Boost
- Hyper-Threading
- AES-NI
- Higher IPC
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Nostalgic computing
Avoid if…
- Modern computing
- Buying used laptops
Use Cases
Interesting Facts
The 'UM' suffix stands for Ultra-low voltage Mobile.
It was a direct competitor to the popular Core 2 Duo SU7300.
Supported Trusted Execution Technology (TXT).
Max dynamic power was 37W.
The integrated GPU ran at 166-500 MHz.
Could address up to 8GB of DDR3 RAM.
Launched at $278 for OEMs.
The CPU die was tiny at 81 mm².
Featured a 105°C Tjmax.
Commonly found in early Dell Adamo and Sony Vaio P models.
People Also Ask
Is the Intel Core i7-620UM fast?
No, it is extremely slow by modern standards.
What does UM mean in Intel processors?
UM stands for Ultra-low voltage Mobile.
Can the i7-620UM be upgraded?
No, it is soldered to the motherboard (BGA 1288).
What is the TDP of the i7-620UM?
It has an 18W TDP.
Does the i7-620UM have integrated graphics?
Yes, Intel HD Graphics (Ironlake).
What is the base clock of the i7-620UM?
The base clock is 1.067 GHz.
How many cores does it have?
It has 2 cores and 4 threads.
Can it run Windows 11?
No, not officially.
What memory does it support?
Dual-channel DDR3-1066.
Does it support Turbo Boost?
Yes, up to 2.133 GHz.
Frequently Asked Questions
Is the Core i7-620UM still usable?
Barely, only for the most basic offline tasks.
Can I game on the i7-620UM?
No, the graphics are too weak.
What generation is it?
1st Generation Intel Core.
Does it support 4K video?
No.
Can it handle 1080p video?
It can handle basic 1080p, but modern high-bitrate formats will lag.
Does it support hardware encryption?
Yes, AES-NI is supported.
What is the max RAM?
8GB.
Is it good for video editing?
No.
What socket does it use?
BGA 1288.
What was the launch price?
$278.