CPU Comparison
Core i7-620LM vs Core i7-640LM
A side-by-side comparison of specs, performance and value. The Intel Core i7-620LM is a low-power mobile processor launched in early 2010, utilizing the 32nm Arrandale architecture. Designed for thin-and-light laptops, it operates on a 25W thermal envelope, balancing performance and battery life. It features 2 cores and 4 threads, with a base clock of 2.0 GHz and a max turbo frequency of 2.8 GHz. The processor uses a multi-chip package, combining a 32nm CPU die with a 45nm graphics/memory controller die, integrating Intel HD Graphics (Ironlake). With 4 MB of Smart Cache, it provided snappy performance for 2010-era mobile applications, multitasking, and media playback. While completely obsolete by modern standards, the 620LM was a popular choice for premium ultraportables, offering a noticeable step up in performance over 18W ULV chips while maintaining excellent battery life for professionals on the move.
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Struggles with modern web and software.
Struggles immensely with modern JavaScript-heavy web pages.
Gaming
No modern gaming capabilities.
Integrated Ironlake graphics cannot run any modern games.
Virtualization
Lacks power for modern VMs.
Technically supports VT-x but lacks the RAM and cores for practical use.
Efficiency
Good for 2010, obsolete now.
Poor by modern standards, but efficient for its time.
Specialized Performance
AI / ML
- No AI capabilities.
- No AI capabilities whatsoever.
Content Creation
Gaming
- Ironlake graphics are too weak for 3D gaming.
- Ironlake graphics are strictly for display output and legacy 2D/low-end 3D applications.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Good performance-per-watt for 2010
- Higher base clock than ULV models
- Included AES-NI
- Good battery life for thin-and-lights
Cons
- Extremely outdated
- Weak integrated graphics
- Soldered to motherboard
- Cannot handle modern web
Pros
- Good performance-per-watt for 2010
- Included AES-NI for hardware encryption
- Integrated graphics reduced platform footprint
- Hyper-Threading improved multitasking
Cons
- Extremely outdated architecture
- Integrated graphics are unusable for modern tasks
- Soldered to motherboard (BGA)
- Lacks modern instruction sets
Competitors & Alternatives
Core i7-620LM
- Intel Core 2 Duo SP9600Rival
Mobile Low Power
- AMD Turion II Ultra M640Rival
Mobile
- Compare head-to-headIntel Core i5-430MRival
Mobile
- Intel Core i7-640LMRival
Mobile Low Power
- AMD Phenom II P920Rival
Mobile
Modern low-power alternative.
Compare head-to-head- AMD Ryzen 5 5625UAlt
Modern efficient mobile chip.
- Intel Core i7-2620MAlt
Sandy Bridge successor.
- Intel N100Alt
Modern budget alternative.
- Alt
Modern ARM comparison.
Compare head-to-head
Core i7-640LM
- Intel Core 2 Duo SU9600Rival
Mobile Low Power
- AMD Turion II Neo K625Rival
Mobile Low Power
- Intel Core i5-430UMRival
Mobile Low Power
- Intel Core i7-620UMRival
Mobile Ultra Low Power
- AMD Phenom II P920Rival
Mobile
Modern low-power mobile alternative with vastly superior efficiency and 8 cores.
Compare head-to-head- AMD Ryzen 3 5300UAlt
Budget modern mobile chip that outperforms it exponentially.
- Intel Core i7-2620MAlt
The Sandy Bridge successor if looking at historical mobile upgrades.
- Alt
Demonstrates the incredible leap in mobile ARM efficiency over the last decade.
Compare head-to-head - Intel N100Alt
A modern budget chip that crushes this old Core i7 in every metric.
Our Verdict on Each
A solid low-power mobile CPU for 2010, but entirely obsolete for modern computing tasks.
Best for: Legacy system repair
Read the full reviewAn innovative low-power CPU for 2010 laptops, but completely obsolete for modern computing tasks.
Best for: Nostalgic retro computing
Read the full reviewFrequently Asked Questions
Do Core i7-620LM and Core i7-640LM use the same socket?
Yes — all of these CPUs use the BGA 1288 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Core i7-640LM posts the highest multi-core benchmark score. Multi-core results: Core i7-620LM (1,600), Core i7-640LM (1,800). Benchmark figures are approximate and workload-dependent.