End-of-life3rd Gen Core i7

Intel · Core i7

Intel Core i7-3555LE

Embedded 25W processor with ECC memory support for industrial applications.

Embedded SystemsIndustrial PCsDigital SignagePoint-of-SaleEdge Computing

Cores / Threads

2/ 4

Base / Boost

2.5/ 3.2 GHz

PCIe Lanes

16

L3 Cache

4MB

TDP

25W

Socket

Intel BGA 1023

Verdict

5/ 10

50

Quick Verdict

A reliable 2012 embedded chip with ECC support, but too slow for modern consumer workloads.

Best for:Embedded SystemsIndustrial PCsDigital SignagePoint-of-SaleEdge Computing

Overview

Launch

2012

Status

End-of-life

Generation

3rd Gen Core i7

Market

Mobile

About this CPU

The Intel Core i7-3555LE is a specialized low-power mobile processor launched in June 2012 as part of the Ivy Bridge family. The 'LE' suffix denotes its focus on embedded and semi-ruggedized systems, operating at a 25-watt TDP. Built on Intel's 22nm process, it features 2 cores and 4 threads. The processor runs at a base clock of 2.5 GHz and can boost up to 3.2 GHz. It includes 4MB of L3 cache and supports dual-channel DDR3 memory. A standout feature of the 3555LE is its support for ECC (Error-Correcting Code) memory, making it suitable for small-scale servers, industrial PCs, and critical embedded systems where data integrity is paramount. While its dual-core design limits multi-threaded performance, its combination of low power consumption, ECC support, and high base clock makes it a versatile chip for specialized industrial applications.

The Intel Core i7-3555LE is an Ivy Bridge mobile processor operating at a 25W TDP. Featuring 2 cores, 4 threads, and ECC memory support, it is designed for industrial PCs and embedded systems. Its low power and data integrity features make it suitable for specialized applications, but it is outdated for modern consumer use.

Specifications

ArchitectureIvy Bridge
Manufacturing Process22nm
Cores / Threads2 / 4
Base Clock2.5 GHz
Boost Clock3.2 GHz
L3 Cache4 MB
TDP25 W
Memory TypeDDR3
Memory Speed1600 MT/s
Memory ChannelsDual-Channel (2)
Max Memory16 GB
PCIe Version / LanesPCIe 3.0 × 16
Integrated GraphicsYes
Dual-Channel16 PCIe Lanes
Target Audience
GamersStreamersContent CreatorsDevelopersWorkstation UsersOffice UsersStudents

Performance

Productivity
25Limited

Slow for modern office tasks but okay for basic embedded UI.

Virtualization
20Limited

Capable of running one light VM, but limited by 2 cores.

Gaming
10Limited

Not intended for gaming.

Efficiency
30Limited

25W TDP was efficient in 2012, but outdated now.

GamingNone
  • Not intended for gaming
  • HD 4000 is too weak for modern titles
CreatorNone
Basic Display Output
AI / MLNone
  • No AI hardware
Industry Impact
Gaming
Low
Workstations
Low
Content Creation
Low
Virtualization
Moderate

Architecture

22nm

Process Node

Ivy Bridge

Codename

2C / 4T

Core Config

4 MB

L3 Cache

25 W

TDP

Architecture Overview

The Core i7-3555LE utilizes the Ivy Bridge microarchitecture, specifically optimized for embedded and low-power applications. The 22nm manufacturing process utilizes 3D Tri-Gate transistors to minimize power leakage. The architecture features 2 physical cores with Hyper-Threading, allowing 4 concurrent threads. It includes 4MB of shared L3 cache. The critical architectural differentiator is the integration of an ECC-capable memory controller, which can detect and correct single-bit memory errors, a vital feature for enterprise and industrial stability. For graphics, it relies on Intel HD Graphics 4000, which features 16 execution units. The architecture also includes Intel VT-x and VT-d for advanced virtualization, allowing the processor to securely partition hardware resources for embedded hypervisors.

CPU Design

2 cores with Hyper-Threading.

Memory Subsystem

Dual-channel DDR3 support with ECC.

PCIe & I/O

16 PCIe 3.0 lanes.

Overclocking

Locked multiplier.

Generation Comparison
Intel Core i7-2655LEIntel Core i7-3555LEIntel Core i7-4600LE
  • 22nm process
  • ECC memory support
  • HD 4000 graphics

Key Highlights

ECC Memory Support
Crucial for enterprise and industrial stability, preventing data corruption.
25W TDP
Low power consumption enables compact embedded designs.
High Base Clock
2.5 GHz base clock ensures strong sustained performance.
VT-x and VT-d
Advanced virtualization support for embedded hypervisors.
Strengths
  • ECC memory support
  • 25W TDP for compact designs
  • VT-x and VT-d virtualization
  • HD 4000 graphics
Weaknesses
  • Only 2 cores
  • Very slow for modern tasks
  • No Windows 11 support
  • Soldered to motherboard

History

Launch Date
2012
Status
End-of-life
Generation
3rd Gen Core i7
Market
Mobile
The Story

Introduced on June 3, 2012, the Core i7-3555LE was launched alongside its consumer counterparts. While standard chips powered ultrabooks, the 3555LE was targeted squarely at the embedded market. System manufacturers used this chip in ruggedized servers, medical equipment, and industrial controllers that required both high processing power and high reliability, but with stricter thermal limits.

The inclusion of ECC memory support in a 35W mobile-class chip was a rare feature, highlighting Intel's strategy to capture the edge computing and industrial IoT markets. As the Ivy Bridge architecture aged, the 3555LE was eventually replaced by newer embedded processors based on Broadwell and Kaby Lake. However, it remains a significant example of Intel adapting its consumer silicon for specialized enterprise applications.

Improvements over Previous Generation

  • 22nm process
  • ECC memory support
  • HD 4000 graphics

Alternatives & Competitors

Intel Core i7-4600LE
Successor with better performance and efficiency.
Intel Core i7-8700T
Modern embedded alternative with 6 cores.
AMD Ryzen Embedded V1605B
Modern embedded alternative with Vega graphics.
Intel Core i7-3612QE
Quad-core alternative with ECC support.
Intel Atom C3758
Modern low-power embedded alternative.
Direct Competitors
AMD Embedded G-T40NIntel Core i7-2655LEIntel Core i5-3550LEAMD Embedded R-464LIntel Atom E3827

Should You Buy It?

Not Recommended for the right buyer

If you are considering the Intel Core i7-3555LE, you are likely maintaining an older industrial PC or a specialized embedded system. This processor should not be sought for consumer use, as its dual-core design is severely outdated for modern multitasking and productivity workloads. 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 its performance is too low and inefficient. It is best utilized in its original context: low-power, always-on embedded systems where stability is paramount. For any new industrial builds, modern embedded processors offer vastly superior performance, security, and power efficiency.

Avoid if…

  • Consumer use
  • Modern multitasking
  • Gaming
  • Need Windows 11 support

Use Cases

Embedded Systems
Good
Industrial PCs
Good
Digital Signage
Very Good
Web Browsing
Fair
Office Productivity
Fair

Interesting Facts

The 'LE' suffix denotes a low-power embedded processor.

It supports ECC memory for data integrity.

It has a TDP of 25 watts.

The chip is soldered to the motherboard (BGA 1023).

It was designed for industrial PCs and digital signage.

The processor has 1.4 billion transistors.

The die size is 118 mm².

It supports dual-channel DDR3 memory.

The max turbo frequency is 3.2 GHz.

It features Intel HD Graphics 4000.

People Also Ask

Is the i7-3555LE good for gaming?

No, it is an embedded processor not meant for gaming.

What is the TDP of the i7-3555LE?

It has a 25-watt TDP.

Does the i7-3555LE support ECC memory?

Yes, it supports ECC memory for data integrity.

Can the i7-3555LE be overclocked?

No, it is a locked processor.

What socket does the i7-3555LE use?

It uses the Intel BGA 1023 socket.

Does the i7-3555LE support DDR4?

No, it supports DDR3 memory.

What is the base clock of the i7-3555LE?

The base clock is 2.5 GHz.

What generation is the i7-3555LE?

It is a 3rd Generation Intel Core processor.

Does the i7-3555LE have integrated graphics?

Yes, it has Intel HD Graphics 4000.

Can the i7-3555LE run Windows 11?

No, it is not officially supported by Windows 11.

Frequently Asked Questions

When was the Core i7-3555LE released?

It was released on June 3rd, 2012.

What is the max turbo frequency of the i7-3555LE?

It can boost up to 3.2 GHz.

How much L3 cache does the i7-3555LE have?

It has 4MB of L3 cache.

What memory speed does the i7-3555LE support natively?

It natively supports DDR3 memory.

Is the i7-3555LE unlocked?

No, the multiplier is locked.

What is the die size of the i7-3555LE?

The die size is 118 mm².

Does the i7-3555LE support PCIe 3.0?

Yes, it supports PCIe 3.0.

Is the i7-3555LE good for video editing?

No, it is too slow for video editing.

What is the maximum memory supported by the i7-3555LE?

It supports up to 16GB of RAM.

What is the 'LE' suffix?

It denotes a low-power embedded processor.