CPU Comparison
Intel Core i7-3615QE vs Core i7-2920XM
A side-by-side comparison of specs, performance and value. The Intel Core i7-3615QE is a high-performance mobile embedded processor launched in April 2012 as part of the Ivy Bridge family. The 'QE' suffix denotes its focus on quad-core embedded systems, operating at a 45-watt TDP. Built on Intel's 22nm process, it features 4 physical cores and 8 threads, a significant upgrade over the dual-core ULV variants. The processor runs at a base clock of 2.3 GHz and can boost up to 3.3 GHz. It includes 6MB of L3 cache and supports dual-channel DDR3 memory. A standout feature of the 3615QE is its support for ECC (Error-Correcting Code) memory, making it suitable for industrial PCs, medical imaging, and critical embedded systems. While its 45W TDP requires active cooling, its combination of quad-core performance, ECC support, and Intel HD Graphics 4000 makes it a powerful chip for demanding industrial applications.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Handles office tasks well but slow for modern rendering.
High clocks and cache make it surprisingly capable for basic tasks.
Gaming
Not intended for gaming, but can run older titles.
Great for older games when overclocked, but lacks modern support.
Virtualization
Can run basic VMs but limited by 4 cores.
VT-d and high clocks make it decent for legacy VMs.
Efficiency
45W TDP is inefficient by modern embedded standards.
55W TDP is very high for a mobile chip, resulting in poor battery life.
Specialized Performance
AI / ML
- No AI hardware
- No AI hardware
- Lacks AVX2
Content Creation
Gaming
- Not intended for gaming
- HD 4000 is too weak for modern titles
- Strong single-core performance
- Needs discrete GPU
- Runs very hot
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- ECC memory support
- 4 cores with Hyper-Threading
- VT-x and VT-d virtualization
- HD 4000 graphics
Cons
- High 45W TDP
- Very slow for modern tasks
- No Windows 11 support
- Soldered to motherboard
Pros
- Unlocked multiplier for overclocking
- High performance for its era
- 8MB L3 cache
- Socketed design
Cons
- Very high 55W TDP
- Runs extremely hot
- Obsolete for modern tasks
- Expensive collector's item
Competitors & Alternatives
Intel Core i7-3615QE
- AMD Embedded R-464LRival
Embedded
- Compare head-to-headIntel Core i7-2715QERival
Embedded
- Intel Core i5-3610QERival
Embedded
- AMD Embedded G-T40NRival
Embedded
- Intel Atom E3845Rival
Embedded
- Intel Core i7-4700EQAlt
Successor with better performance and efficiency.
- Intel Core i7-9700TAlt
Modern embedded alternative with 8 cores.
- AMD Ryzen Embedded V1605BAlt
Modern embedded alternative with Vega graphics.
Lower 35W TDP alternative.
Compare head-to-head- Intel Xeon E-2176GAlt
Modern server alternative with ECC support.
Core i7-2920XM
- AMD A8-3550MXRival
Mobile
- Intel Core i7-2860QMRival
Mobile
- Intel Core i7-2820QMRival
Mobile
- Compare head-to-headIntel Core i7-2760QMRival
Mobile
- AMD A10-4600MRival
Mobile
- Intel Core i7-2960XMAlt
Slightly higher clocks and newer revision.
- Intel Core i7-3920XMAlt
Ivy Bridge successor with better efficiency and overclocking.
Ivy Bridge alternative with lower TDP.
Compare head-to-headStandard Ivy Bridge quad-core for laptops.
Compare head-to-head
Our Verdict on Each
A capable 2012 embedded quad-core chip with ECC support, but inefficient by modern standards.
Best for: If you are considering the Intel Core i7-3615QE, you are likely maintaining an older industrial PC or a specialized embedded system. This processor should not be sought for consumer use, as its 45W TDP and older 22nm architecture make it inefficient for modern laptops and ultrabooks. It is only recommended if you need to keep a specific legacy system running that requires a direct replacement part with ECC memory support. Avoid using this CPU for general web browsing or modern office work, as there are much cheaper and faster alternatives available. It is best utilized in its original context: high-performance, always-on embedded systems where stability is paramount. For any new industrial builds, modern embedded processors offer vastly superior performance, security, and power efficiency.
Read the full reviewA legendary mobile CPU that brought unlocked overclocking to laptops, though it runs hot and is outdated.
Best for: Upgrading a Socket G2 enthusiast laptop
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-3615QE or Core i7-2920XM?
Based on our editorial ratings, the Core i7-2920XM comes out ahead with a score of 7/10. 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, Intel Core i7-3615QE or Core i7-2920XM?
For gaming, the Core i7-2920XM leads with a gaming performance score of 28/100 among Intel Core i7-3615QE and Core i7-2920XM.
Which uses less power?
The Intel Core i7-3615QE has the lowest rated TDP. Power draw across these chips: Intel Core i7-3615QE (45 W), Core i7-2920XM (55 W).
Do Intel Core i7-3615QE and Core i7-2920XM use the same socket?
No. They use different sockets (Intel Core i7-3615QE: Intel BGA 1023, Core i7-2920XM: Intel Socket G2 (988B)), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Core i7-2920XM posts the highest multi-core benchmark score. Multi-core results: Core i7-2920XM (5,900). Benchmark figures are approximate and workload-dependent.