CPU Comparison
Core i7-820QM vs Core i7-920XM
A side-by-side comparison of specs, performance and value. The Intel Core i7-820QM is a high-end mobile quad-core processor launched in September 2009. Based on the Clarksfield architecture, it features 4 cores and 8 threads with a base clock of 1.73 GHz and a turbo boost up to 3.06 GHz. With a 45W TDP, it was a premium offering for early gaming and workstation laptops. Built on a 45nm process, it includes 8MB of L3 cache and supports dual-channel DDR3-1333 memory, but lacks integrated graphics.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
8MB cache and 8 threads help with heavy multitasking.
Adequate for basic tasks but severely outpaced by modern mobile CPUs.
Gaming
Good for 2009 games but lacks single-core speed for modern titles.
Capable of playing older 2010-era titles well, but struggles with modern games.
Virtualization
Excellent for legacy VMs.
Good for running basic VMs on the go, though limited by modern standards.
Efficiency
45W TDP on 45nm is very hot and inefficient.
Very poor efficiency by modern standards, with high idle and load power draw.
Specialized Performance
AI / ML
- No AI hardware
- No AI acceleration hardware
- Unsuitable for modern AI workloads
Content Creation
Gaming
- Requires discrete GPU
- Can bottleneck modern games
- Good for retro gaming
- High clock speeds for its era
- Lacks modern instruction sets like AVX
- Requires discrete GPU
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Large 8MB L3 cache
- High 3.06 GHz turbo boost
- 8 threads for multitasking
- Socketed (Socket G1)
Cons
- Very hot running (45W)
- No integrated graphics
- Obsolete 45nm process
- Expensive at launch
Pros
- Unlocked multiplier
- Quad-core performance for mobile
- 8MB L3 cache
- Turbo Boost technology
Cons
- Very high power consumption (120W max)
- No integrated graphics
- Obsolete socket
- Runs very hot
Competitors & Alternatives
Core i7-820QM
- AMD Phenom II X4 X920Rival
Mobile
- Intel Core i7-720QMRival
Mobile
- Intel Core 2 Extreme QX9300Rival
Mobile
- Intel Core i7-840QMRival
Mobile
- Intel Core i7-920XMRival
Mobile Extreme
- Intel Core i7-2720QMAlt
Newer Sandy Bridge alternative.
Core i7-920XM
- AMD Phenom II X4 MobileRival
Mobile High-End
- Intel Core 2 Extreme QX9300Rival
Mobile Extreme
- Intel Core i7-820QMRival
Mobile High-End
- Intel Core i7-720QMRival
Mobile Mid-Range
- AMD Turion II UltraRival
Mobile Mainstream
- Intel Core i7-940XMAlt
Slightly faster refresh of the same architecture.
- AMD Phenom II X4 N950Alt
AMD's alternative mobile quad-core.
Better efficiency for basic mobile tasks.
Compare head-to-head
Our Verdict on Each
A groundbreaking mobile CPU in 2009 that brought 8MB of cache and 8 threads to laptops, but heavily outdated and power-hungry today.
Best for: Repairing a legacy mobile workstation
Read the full reviewA groundbreaking mobile CPU that brought unlocked quad-core performance to laptops, though it runs hot and is obsolete today.
Best for: Retro gaming laptop restoration.
Read the full reviewFrequently Asked Questions
Which is better, Core i7-820QM or Core i7-920XM?
Based on our editorial ratings, the Core i7-920XM comes out ahead with a score of 7.5/10. 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, Core i7-820QM or Core i7-920XM?
For gaming, the Core i7-920XM leads with a gaming performance score of 40/100 among Core i7-820QM and Core i7-920XM.
Which uses less power?
The Core i7-820QM has the lowest rated TDP. Power draw across these chips: Core i7-820QM (45 W), Core i7-920XM (55 W).
Do Core i7-820QM and Core i7-920XM use the same socket?
Yes — all of these CPUs use the Intel Socket G1 socket, so they share compatible motherboards.