GPU Backplate Memory Radiator Aluminum Heatsink Cooler for RTX 3090

In this review of the GPU Backplate Memory Radiator Aluminum Heatsink Cooler, the bottom line is simple: it is a focused cooling upgrade for owners of large NVIDIA cards who need quieter, sustained memory and VRM cooling. The kit combines a 180 x 90 x 15mm aviation aluminum backplate with two 70mm PWM fans and a 1.2mm 7W thermal pad, and it earns recommendation mainly for its improved cooling capacity and low noise compared with smaller memory coolers. Installation is straightforward for those comfortable opening a GPU backplate and the performance is especially notable on 3090-class cards.

Key Features

• Dual 70mm PWM fans: Two dual ball bearing 70mm fans provide adjustable 1500-2800RPM cooling that ramps with internal temperature for better sustained heat removal without constant high noise.
• Aviation aluminum backplate: The 6061 aluminum plate is lightweight, corrosion resistant, and 1.5mm thick for a larger dissipation area than thinner alternatives.
• Upgraded elastic latch: The flexible elastic latch makes mounting the radiator on the memory area easier and more secure than rigid clip designs.
• Thermal interface included: A 1.2mm 7W thermal pad is supplied so memory and components make thermal contact with the radiator for improved temperature transfer.
• Compact footprint: At 180 x 90 x 15mm the radiator covers a broad memory area while remaining small enough to fit under a flat backplate on compatible cards.

Who It's For

This accessory is aimed at owners of RTX 3090 cards who want additional passive and active cooling for memory and VRM areas without replacing the GPU cooler. Reviewers who tested it found it particularly effective on large custom 3090 boards where there is a flat surface to mount the radiator.

It also works with RTX 3080 and 3070 models that offer a flat backplate area, but those with atypical layouts, raised components, or who are uncomfortable disassembling a card should look for factory-integrated solutions or professional installation instead.

Pros & Cons

Pros

• Noticeably improves memory area cooling thanks to a larger 1.5mm aluminum radiator surface and dual 70mm fans.
• Fans are relatively quiet (16-20dBA) and use a 4-pin PWM connector for automatic speed control.
• Solid build: 6061 aluminum and dual ball bearings increase durability and corrosion resistance.

Cons

• Requires a flat mounting surface and some disassembly of the GPU backplate, so not universally plug-and-play for all cards.
• Compatibility is limited to cards with an appropriate flat area; check fit before buying.

Specifications

Our Verdict

The GPU Backplate Memory Radiator is a practical, value-minded upgrade for RTX 3090 owners who need extra memory and VRM cooling without bulk or high noise. Its thicker 6061 aluminum plate, dual 70mm PWM fans, and included 7W thermal pad make it a solid choice when the card provides a flat mounting area, delivering quieter, sustained cooling and good long-term durability.

Frequently Asked Questions

Will this fit my RTX 3090?
It is designed for RTX 3090 and is also compatible with many RTX 3080 and 3070 cards that have a flat backplate surface; confirm flatness and dimensions before purchasing.

How loud are the fans?
Rated at about 16-20 dBA, the dual ball bearing 70mm fans are relatively quiet and the 4-pin PWM connector allows automatic speed control.

Does it include a thermal pad?
Yes, a 1.2mm 7W thermal pad is included to improve contact between the memory/VRM and the radiator.