5 Best 4090 for Water Cooling [In 2025]

As the latest and greatest graphics card from NVIDIA, the GeForce RTX 4090 is a powerhouse that demands the best cooling solutions to unleash its full potential. Whether you’re a hardcore gamer, a content creator, or a PC enthusiast, finding the right water cooling setup for your RTX 4090 can make a significant difference in performance and system stability. In this comprehensive review, we’ll explore some of the top water cooling options for the RTX 4090, helping you make an informed decision on the best choice for your setup.

5 Best 4090 for Water Cooling Reviews

Alpha Cool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate Bundle

Overview

The Alpha Cool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate Bundle is a high-performance water cooling solution designed specifically for the Gigabyte Aorus RTX 4090 Master and Gaming graphics cards. This bundle includes the Eisblock Aurora GPU water block and the Aurora 180-degree terminal, offering a versatile and flexible cooling solution.

Specs

• GPU Water Block Dimensions (L x W x H): 233.3 x 152.46 x 33.9mm
• Material: Chrome-plated copper, acetal
• Connections: 4 x G1/4″
• Lighting: Digital aRGB LEDs
• Backplate Dimensions (L x W x H): 233.3 x 127.96 x 6mm
• Backplate Material: Aluminum

Pros

• Optimized fin structure for improved water flow and cooling performance
• Chrome-plated copper construction for durability and corrosion resistance
• Included backplate for additional cooling and protection
• Digital aRGB lighting for customizable aesthetics
• Flexible 180-degree terminal for improved compatibility and cable management

Cons

• Compatibility limited to specific Gigabyte Aorus RTX 4090 models
• May require additional fittings or tubing for certain system configurations

Customer Review

The Alpha Cool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate Bundle has received positive feedback from customers, with praise for its cooling performance, build quality, and easy installation. However, some users have reported compatibility issues with certain system configurations.

CORSAIR Hydro X Series iCUE Link XG7 RGB 4090 Strix/TUF GPU Water Block

Overview

The CORSAIR Hydro X Series iCUE Link XG7 RGB 4090 Strix/TUF GPU Water Block is a high-quality water cooling solution designed for ASUS ROG Strix and TUF Gaming GeForce RTX 4090 graphics cards. It features a CNC-milled nickel-plated copper construction and an included backplate for comprehensive cooling.

Specs

• Material: Nickel-plated copper, aluminum
• Lighting: RGB LED
• Connections: G1/4″ threads
• Compatibility: ASUS ROG Strix and TUF Gaming GeForce RTX 4090

Pros

• Precision CNC-milled construction for optimal heat transfer
• Integrated RGB lighting with CORSAIR iCUE software control
• Included backplate for comprehensive cooling
• Easy installation with pre-applied thermal material
• Compatible with CORSAIR iCUE LINK ecosystem for seamless integration

Cons

• Compatibility limited to ASUS ROG Strix and TUF Gaming RTX 4090 models
• Requires separate CORSAIR iCUE controller for advanced lighting control

Customer Review

The CORSAIR Hydro X Series iCUE Link XG7 RGB 4090 Strix/TUF GPU Water Block has received positive reviews from customers, who praise its easy installation, impressive cooling performance, and sleek aesthetic design. Some users have noted that the additional cost of the CORSAIR iCUE controller may be a deterrent for some buyers.

Alphacool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate

Overview

The Alphacool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate is a high-performance water cooling solution designed specifically for the Gigabyte Aorus RTX 4090 Master and Gaming graphics cards. This water block features a chrome-plated copper construction and an included backplate for comprehensive cooling.

Specs

• GPU Water Block Dimensions (L x W x H): 233.3 x 152.46 x 33.9mm
• Material: Chrome-plated copper, acrylic
• Connections: 4 x G1/4″
• Lighting: Digital aRGB LEDs
• Backplate Dimensions (L x W x H): 233.3 x 127.96 x 6mm
• Backplate Material: Aluminum

Pros

• Optimized fin structure and nozzle plate for improved cooling performance
• Chrome-plated copper construction for durability and corrosion resistance
• Included backplate for additional cooling and protection
• Digital aRGB lighting for customizable aesthetics

Cons

• Compatibility limited to specific Gigabyte Aorus RTX 4090 models
• May require additional fittings or tubing for certain system configurations

Customer Review

The Alphacool Eisblock Aurora Geforce RTX 4090 Aorus Master – Gaming V.2 GPU Water Block with Backplate has received positive feedback from customers, with praise for its cooling performance, build quality, and easy installation. However, some users have reported compatibility issues with certain system configurations.

Corsair Hydro X Series XG7 RGB 4090 Gaming Trio GPU Water Block

Overview

The Corsair Hydro X Series XG7 RGB 4090 Gaming Trio GPU Water Block is a high-quality water cooling solution designed for the MSI GeForce RTX 4090 GAMING TRIO graphics cards. It features a CNC-milled nickel-plated copper construction and an included backplate for comprehensive cooling.

Specs

• Material: Nickel-plated copper, aluminum
• Lighting: RGB LED
• Connections: G1/4″ threads
• Compatibility: MSI GeForce RTX 4090 GAMING TRIO

Pros

• Precision CNC-milled construction for optimal heat transfer
• Integrated RGB lighting with CORSAIR iCUE software control
• Included backplate for comprehensive cooling
• Easy installation with pre-applied thermal material
• Compatible with CORSAIR iCUE ecosystem for seamless integration

Cons

• Compatibility limited to MSI GeForce RTX 4090 GAMING TRIO models
• Requires separate CORSAIR iCUE controller for advanced lighting control

Customer Review

The Corsair Hydro X Series XG7 RGB 4090 Gaming Trio GPU Water Block has received positive reviews from customers, who praise its thermal performance, ease of installation, and aesthetics. Some users have noted that the additional cost of the CORSAIR iCUE controller may be a deterrent for some buyers.

Phanteks (PH-GB4090MS) Glacier G4090 MSI Water Block Bundle

Overview

The Phanteks Glacier G4090 MSI Water Block Bundle is a high-performance water cooling solution designed for the MSI SUPRIM (X) and GAMING (X) TRIO RTX 4090 graphics cards. It features a nickel-plated copper base, clear acrylic top, and an included aluminum backplate for comprehensive cooling.

Specs

• Water Block Dimensions (L x W x H): 10.49 x 5.95 x 0.74 in (266.56 x 151.24 x 18.9 mm)
• Material: Nickel-plated copper, acrylic, aluminum
• Lighting: Digital RGB LED
• Connections: G1/4″ threads
• Backplate Dimensions (L x W x H): 10.49 x 4.98 x 0.04 in (266.56 x 126.54 x 1 mm)
• Backplate Material: Aluminum

Pros

• Premium materials and construction for optimal cooling performance
• Integrated digital RGB lighting for customizable aesthetics
• Included aluminum backplate for comprehensive cooling
• Compatible with MSI SUPRIM (X) and GAMING (X) TRIO RTX 4090 models

Cons

• Compatibility limited to specific MSI RTX 4090 models
• May require additional fittings or tubing for certain system configurations

Customer Review

The Phanteks Glacier G4090 MSI Water Block Bundle has received positive feedback from customers, who appreciate its high-quality construction, impressive cooling performance, and sleek aesthetic design. Some users have noted that the lack of a replacement PCIe bracket may be a minor inconvenience for certain system configurations.

Buying Guide: Choosing the Best 4090 for Water Cooling

Compatibility

• Ensure the water block is compatible with your specific RTX 4090 graphics card model
• Check the dimensions and clearances to ensure a proper fit in your system
• Consider any additional requirements, such as PCIe bracket compatibility

Cooling Performance

• Look for water blocks with optimized fin structures and cooling surfaces for efficient heat dissipation
• Consider the material construction, such as copper or nickel-plated copper, for better thermal conductivity
• Evaluate customer reviews and benchmarks to assess the cooling performance of the water block

Aesthetics

• If RGB lighting is important, look for water blocks with integrated addressable RGB LEDs
• Consider the overall design and finish of the water block to match your system’s aesthetic
• Evaluate the inclusion of features like backplates or custom covers for a cohesive look

Ease of Installation

• Look for water blocks with pre-applied thermal paste or pads to simplify the installation process
• Check for clear and comprehensive installation guides to ensure a smooth setup
• Consider the availability of additional accessories or fittings that may be required

Value for Money

• Evaluate the overall cost of the water block and any required accessories
• Assess the quality of the materials and construction against the price point
• Consider the long-term durability and potential for future system upgrades

FAQs

1. What are the key factors to consider when choosing a water block for the RTX 4090?

The key factors to consider are compatibility with your specific RTX 4090 model, cooling performance, aesthetics, ease of installation, and overall value for money.

2. Do I need to replace the thermal paste when installing a water block?

Many water blocks come with pre-applied thermal paste, but it’s generally recommended to clean the GPU and apply a fresh layer of high-quality thermal paste for optimal heat transfer.

3. How do I ensure the water block is properly installed and sealed?

Carefully follow the manufacturer’s installation instructions, ensuring all fittings are tightened securely and the O-rings or gaskets are properly seated to prevent any leaks.

4. Can I use a water block designed for a different RTX 4090 model?

No, it’s crucial to use a water block that is specifically designed and compatible with your RTX 4090 model. Using an incompatible water block can result in poor cooling performance or even damage to your graphics card.

5. How do I integrate the water block’s RGB lighting with my system?

The integration method will depend on the water block and your system’s RGB ecosystem. Some water blocks may use standard 5V ARGB connectors for motherboard control, while others may require a proprietary controller like CORSAIR’s iCUE LINK.

Conclusion

Choosing the best water cooling solution for your RTX 4090 is essential to unlocking its full potential and ensuring optimal performance. The water cooling