What Is the Difference Between Intel Atom x6425E and x7433RE / x7835RE?


As edge computing requirements evolve, so do the processors 
powering industrial systems. Premio’s 
RCO-1000-EHL Series is built on the Intel Atom x6425E processor based on the Elkhart Lake platform. The newer RCO-1000-ASL Series transitions to Intel Atom x7433RE and x7835RE processors based on the latest Amston Lake architecture. 

So what changed? And why does this upgrade matter for industrial edge deployments? 

This article compares Intel Atom x6425E with the newer x7433RE and x7835RE processors, and explains how the transition supports next generation edge systems. 

 

Intel Atom x6425E Overview 



The Intel Atom x6425E belongs to the Elkhart Lake family and launched in Q1 2021. It is built on 10 nm process technology and has been widely adopted in embedded systems.
 

Key specifications: 

Feature  Intel Atom x6425E 
Architecture  Elkhart Lake 
Launch  Q1 2021 
Cores  4 
Burst Frequency  Up to 3.0 GHz 
Cache  1.5 MB L2 
TDP  12 W 
Memory  DDR4 / LPDDR4x 
PCIe Lanes  8 
Integrated LAN  3x 2.5GbE 
Extended Temp  Yes 

The x6425E has proven reliable for industrial gateways, machine control systems, and compact edge computers. It offers solid performance within a 12 watt power envelope and supports industrial extended temperature operation. 

However, as edge workloads grow more demanding, newer architectures offer improved scalability and efficiency. 

Introducing Intel Atom x7433RE and x7835RE 

The Intel Atom x7433RE and x7835RE processors belong to the newer Amston Lake platform, launched in Q2 2024 and built on Intel 7 process technology. 

Compared to Elkhart Lake, Amston Lake focuses on: 

  • Higher core scalability
  • Improved frequency
  • Enhanced memory support including DDR5
  • Modernized embedded platform roadmap 

Here is a direct comparison: 

Feature 

x6425E 

x7433RE 

x7835RE 

Architecture 

Elkhart Lake 

Amston Lake 

Amston Lake 

Launch 

Q1 2021 

Q2 2024 

Q2 2024 

Process Node 

10 nm 

Intel 7 

Intel 7 

Cores 

4 

4 

8 

Max Frequency 

3.0 GHz 

3.4 GHz 

3.6 GHz 

Cache 

1.5 MB 

6 MB 

6 MB 

TDP 

12 W 

9 W 

12 W 

Memory 

DDR4 / LPDDR4x 

DDR4 / DDR5 / LPDDR5 

DDR4 / DDR5 / LPDDR5 

PCIe Lanes 

8 

9 

9 



What Improvements Does Amston Lake Bring? 

Increased Core Scalability

While x6425E is limited to four cores, x7835RE expands to eight cores, providing greater parallel processing capability. This is particularly valuable for multi sensor aggregation and edge analytics workloads. 

Higher Frequency and Larger Cache 

Amston Lake increases maximum turbo frequency and significantly expands cache from 1.5 MB to 6 MB. This improves responsiveness in data handling and real time processing scenarios. 

Lower Power Efficiency Option 

The x7433RE introduces a 9 watt TDP profile, enabling even more efficient fanless system designs compared to the 12 watt x6425E. 

Modern Memory Support 

Support for DDR5 and LPDDR5 increases memory bandwidth potential, preparing edge systems for future workload growth. 

Updated Embedded Roadmap 

As newer silicon, Amston Lake extends the lifecycle roadmap for next generation industrial platforms such as Premio’s RCO-1000-ASL. 

 

When Should You Upgrade from x6425E? 

The Intel Atom x6425E remains suitable for stable, control focused edge systems. However, upgrading to x7433RE or x7835RE makes sense when: 

  • Applications require higher parallel processing
  • Multi sensor AI or analytics workloads increase
  • Greater cache and frequency improve system responsiveness
  • DDR5 support is required
  • Long term platform refresh is planned 

For new deployments, Amston Lake offers a more forward looking foundation. 

 

How This Impacts Premio’s RCO-1000 Series 

The RCO-1000-EHL Series powered by x6425E continues to serve control centric and gateway applications. 

The RCO-1000-ASL Series, powered by x7433RE and x7835RE, extends the performance envelope while maintaining compact form factor and low power efficiency. It supports more advanced edge workloads without sacrificing industrial reliability. 

This generational transition reflects the evolving requirements of edge computing infrastructure. 

 

Why This Upgrade Matters for Edge Computing 

Edge computing systems are becoming more distributed and data intensive. The shift from Elkhart Lake to Amston Lake is not about chasing performance benchmarks. It is about increasing scalability, modernizing memory architecture, and extending lifecycle readiness. 

Intel Atom x7433RE and x7835RE provide the next step forward for compact, power efficient industrial systems. For organizations planning new deployments or refreshing existing platforms, the move to Amston Lake ensures greater flexibility for future edge demands. 

To learn more about Premio’s RCO-1000-ASL Series powered by Intel Atom x7433RE and x7835RE processors, contact our product experts at sales@premioinc.com.