EK-Quantum Surface S420 420mm Radiator Review: A Deep Dive into Performance and Features

The EK-Quantum Surface S420 is a 420mm radiator designed for high-performance liquid cooling systems. It boasts a 30mm thickness, high-grade copper fins, and stainless steel side plates. This review dives deep into the features, performance, and overall experience of using this radiator in a real-world build.

Table of Contents

• Introduction
• Features
• Performance
• Pros & Cons
• Final Verdict

Introduction

The EK-Quantum Surface S420 is a popular choice for custom liquid cooling enthusiasts seeking to improve CPU and GPU temperatures. With its 30mm thickness and 420mm length, it promises ample surface area for heat dissipation. But how does it stack up in practice? I’ve been using this radiator in my build for the past few weeks and can confidently share my impressions on its performance and features.

Features

The EK-Quantum Surface S420 is packed with features designed to enhance its cooling performance and durability:

• High-Grade Copper Fins: The dense copper fins provide excellent thermal conductivity, maximizing heat transfer from the coolant to the surrounding air.
• Stainless Steel Side Plates: The durable stainless steel side plates protect the radiator’s core and ensure long-lasting performance.
• Brass Nickel-Plated Adapters and Plugs: These ensure a secure and corrosion-resistant connection for your cooling loop.
• 12x M4x30 mm screws: Designed to mount 25mm thick fans securely.
• 12x M4x5 mm screws: Used for direct radiator mounting.
• 1 bar Pressure Tested: The radiator is built to withstand high pressure, ensuring leak-free operation.

Performance

I’ve been using the EK-Quantum Surface S420 with a high-end CPU and GPU setup. Compared to my previous air cooler, the difference in temperatures is significant. The CPU stays consistently cool under heavy load, even during demanding tasks like gaming and video editing. The 420mm length allows for ample fan mounting options, contributing to its exceptional cooling performance.

The radiator does a great job of keeping the coolant temperature low, which translates to improved component longevity. The copper fins efficiently dissipate heat, and the 30mm thickness offers plenty of surface area for heat transfer. This translates to lower noise levels, even with powerful fans installed.

Pros & Cons

Pros

• Excellent cooling performance for both CPU and GPU.
• Durable construction with high-grade materials.
• Plenty of mounting options for different fan configurations.
• Efficient heat dissipation with minimal noise.

Cons

• The 30mm thickness might be a consideration for smaller cases.
• The price point might be higher compared to some other radiators on the market.

Final Verdict

The EK-Quantum Surface S420 is an excellent choice for anyone looking to build a high-performance liquid cooling system. Its impressive cooling performance, durable construction, and versatile mounting options make it a strong contender. While it comes with a higher price tag, the exceptional cooling capabilities and longevity make it a worthwhile investment for serious enthusiasts.

If you’re looking to maximize cooling performance and enjoy quiet operation, the EK-Quantum Surface S420 is an excellent option. Its ability to handle demanding workloads without breaking a sweat makes it a great addition to any custom-built PC.