CPU Comparison
Intel Core i7-3635QM vs Intel Core i7-4980HQ
A side-by-side comparison of specs, performance and value. The Intel Core i7-3635QM is a high-performance mobile processor launched in late 2012 as part of the Ivy Bridge generation. Designed for premium laptops and mobile workstations, it features four cores and eight threads, delivering robust parallel processing capabilities. It operates at a base clock of 2.4 GHz and can boost up to 3.4 GHz using Intel Turbo Boost 2.0. Unlike the socketed 3630QM, the 3635QM utilizes a BGA 1224 package, meaning it is soldered directly to the motherboard. This allows for slightly thinner laptop designs but prevents CPU upgrades. With a 45-watt thermal design power, it balances high performance with the thermal constraints of premium mobile chassis. The integrated Intel HD 4000 graphics offer capable multimedia decoding. This CPU was a popular choice for system integrators building compact, high-performance laptops where board space and component height were critical factors.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
8 threads handle everyday multitasking and office workloads without issues.
4.0 GHz turbo helps single-threaded productivity tasks.
Gaming
Handles older or eSports titles well when paired with a discrete GPU.
Strong for 2013 games, but shows its age in modern titles.
Virtualization
Can run light VMs, but limited by DDR3 bandwidth and 45W power.
Capable of running multiple VMs efficiently.
Efficiency
22nm Ivy Bridge is not as efficient as modern mobile processes.
High clock speeds result in high heat and power draw.
Specialized Performance
AI / ML
- No dedicated AI hardware
- CPU inference is slow
- No AI acceleration hardware
- High clocks don't compensate for lack of modern matrix math support
Content Creation
Gaming
- Needs a discrete GPU for gaming
- Capable of 60fps in older titles
- Will bottleneck modern high-end mobile GPUs
- 4.0 GHz turbo helps CPU-heavy games
- Iris Pro eDRAM smooths textures
- Still struggles with modern AAA games
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Good quad-core performance for its era
- BGA design allows for thinner laptops
- Strong turbo boost frequencies
- Decent 6MB L3 cache
Cons
- Soldered to motherboard, cannot be upgraded
- Older 22nm process
- Supports only DDR3
- Weak integrated graphics
Pros
- Hits 4.0 GHz turbo
- Strong Iris Pro graphics
- Excellent single-threaded performance for its era
Cons
- End-of-life
- Runs hot under load
- Poor power efficiency
Competitors & Alternatives
Intel Core i7-3635QM
- AMD A10-4600MRival
Mobile
- Compare head-to-headIntel Core i7-3630QMRival
Mobile
- Intel Core i7-3612QMRival
Mobile
- AMD FX-6100Rival
Desktop
- Compare head-to-headIntel Core i5-3210MRival
Mobile
Newer Haswell architecture with better efficiency.
Compare head-to-head- AMD Ryzen 5 3500UAlt
Modern mobile alternative with vastly superior efficiency.
- Intel Core i5-8250UAlt
Much faster and more efficient for budget laptops.
- Alt
Incredible performance per watt.
Compare head-to-head
Intel Core i7-4980HQ
- AMD A10-5750MRival
Mobile
- Intel Core i7-4800MQRival
Mobile
- AMD FX-8800PRival
Mobile
- Intel Core i7-3840QMRival
Mobile
- NVIDIA Tegra K1Rival
Mobile
- AMD Ryzen 9 5900HXAlt
Modern mobile powerhouse with vastly better efficiency.
8 cores and modern architecture obliterate this old flagship.
Compare head-to-head- Alt
Incredible performance per watt for content creation.
Compare head-to-head 14 cores provide massive multi-threading gains.
Compare head-to-head- AMD Ryzen 7 6800HAlt
Superior integrated graphics and modern DDR5 support.
Our Verdict on Each
A capable mobile CPU that provided excellent quad-core performance for laptops in its era, utilizing a space-saving BGA design.
Best for: Purchasing a budget, used laptop for basic tasks or retro gaming.
Read the full reviewThe fastest Crystalwell mobile CPU, hitting 4.0 GHz, offering top-tier 2013 performance but now outclassed by modern efficiency.
Best for: Always-plugged-in secondary machine. Purchasing a system featuring the Core i7-4980HQ today is generally not recommended for new builds or primary workstations. While it was a top-tier performer in 2013, its 22nm architecture and 47W TDP mean it is significantly less efficient than modern processors. A used laptop containing this chip might still handle basic productivity, web browsing, and older games, but it will struggle with modern, demanding applications and its battery life will likely be poor due to its age. If you are considering it for a low-cost, always-plugged-in secondary machine, it may suffice. Otherwise, investing in a modern system will provide vastly superior performance, efficiency, and security features.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-3635QM or Intel Core i7-4980HQ?
Based on our editorial ratings, the Intel Core i7-4980HQ 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 uses less power?
The Intel Core i7-3635QM has the lowest rated TDP. Power draw across these chips: Intel Core i7-3635QM (45 W), Intel Core i7-4980HQ (47 W).
Do Intel Core i7-3635QM and Intel Core i7-4980HQ use the same socket?
No. They use different sockets (Intel Core i7-3635QM: Intel BGA 1224, Intel Core i7-4980HQ: Intel BGA 1364), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i7-4980HQ posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-3635QM (4,900), Intel Core i7-4980HQ (8,900). Benchmark figures are approximate and workload-dependent.