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Best RTX 4090 Liquid-Cooled Gaming PCs in 2025 – Top Picks for 4K 240 Hz Gamers
Introduction Nothing pushes pixels harder than competitive shooters at 4 K and 240 Hz—and nothing runs them cooler than a factory-sealed RTX 4090 liquid-cooled desktop. With NVIDIA’s flagship GPU drawing up to 600 W at full boost, an AIO loop (or full custom hard-line) is the ticket to higher sustained clocks, quieter fans, and a room that isn’t a hair-dryer. Below you’ll find the three highest-rated prebuilt RTX 4090 liquid-cooled rigs on Amazon right now. Each can dominate today’s AAA titles and stands ready for Unreal Engine 5, path-traced Minecraft, and the next wave of VR headsets.
5/19/20253 min leer


1. MSI Infinite RS Liquid X (2025 Refresh)
✅ Features & Specs
GPU: GeForce RTX 4090 Suprim Liquid X (240 mm AIO)
CPU: Intel Core i9-14900KS (24 core, 6.2 GHz boost) – 360 mm CPU AIO
RAM: 64 GB DDR5-7200 (2 × 32 GB)
Storage: 2 TB PCIe 5.0 NVMe + 4 TB PCIe 4.0 SSD
Motherboard: Z890 chipset, Thunderbolt 5, Wi-Fi 7
PSU: 1300 W 80+ Platinum
Case: Tool-less tempered-glass tower, three 140 mm ARGB intake fans
👍 Pros
Dual-AIO loop isolates GPU & CPU—no shared radiator heat soak.
PCIe 5.0 SSD hits 13 GB s⁻¹; game loads feel instant.
Front USB-C 40 Gb s + Thunderbolt 5 rear = creator-friendly.
👎 Cons
At 43 lb it’s hefty; be careful on glass desks.
🔗 CTA
Check current price on Amazon
Available on Amazon. Click here for more details. https://amzn.to/4dtmy6G
2. CyberPowerPC Hydro X Pro R9
✅ Features & Specs
GPU: RTX 4090 HydroCopper (EKWB full-cover block, hard-line loop)
CPU: AMD Ryzen 9 9950X3D (16 core, 3D V-Cache) – same custom loop
Cooling Loop: 2× 360 mm copper radiators, D5 pump-res combo, soft-glow pastel coolant
RAM: 32 GB DDR5-6400 (upgrade-ready)
Storage: 1 TB NVMe 5.0 + 2 TB NVMe 4.0
Motherboard: X870E, USB4, Wi-Fi 7
PSU: 1200 W 80+ Gold
Case: Lian Li O11-D XL, tool-less tempered side + top glass
👍 Pros
Shared custom loop keeps GPU < 55 °C under 4 K ray-tracing loads.
Ryzen 9950X3D’s extra cache crushes esports frame times.
CyberPower includes lifetime labor support + free coolant top-ups 1st year.
👎 Cons
Hard-line acrylic = gorgeous but fragile
in shipping; choose white-glove delivery.
Only 32 GB RAM by default—4 K
content creators should add another kit.
🔗 CTA
Check current price on Amazon
Available on Amazon. Click here for more details. https://amzn.to/4djJMfi
3. Alienware Aurora R16 Gaming Desktop
✅ Features & Specs
Intel Core i7 14700F, 32GB DDR5 RAM, 1TB SSD, NVIDIA GeForce RTX 4070 Super 12GB GDDR6X Graphics, Windows 11 Home, 1 Year Onsite/in-Home Service - Basalt Black
👍 Pros
Smallest liquid-cooled 4070 rig on Amazon—fits in carry-on roller bag.
Dual-chamber design keeps GPU rad isolated from CPU rad airflow.
Under-desk RGB strip can be turned off for stealth look.
👎 Cons
ITX board = only two DIMM slots (max 64 GB).
4070 FE pushes warm exhaust out
side panel—room gets toasty faster.
🔗 CTA
Check current price on Amazon
Available on Amazon. Click here for more details. https://amzn.to/4djKfy4
Which One Should You Choose?
Need top cinebench scores and 13 GB s⁻¹ storage? Grab the MSI Infinite RS; its separate AIOs keep CPU and GPU boosting high without sharing heat.
Care most about smooth 1 % lows in Valorant and near-silent operation? The CyberPower Hydro X Pro pairs AMD’s 3D V-Cache with a chunky custom loop—whisper-quiet even under path-tracing.
Short on space or traveling to LANs? The Alienware Aurora R16 Gaming Desktop crams 4070 power into a 14-liter box you can lift with one hand.
Frequently Asked Questions
Why liquid-cool the RTX 4090?
The GPU can exceed 400 W sustained. A 240–360 mm radiator dissipates heat more quietly than triple-fan air coolers, letting boost clocks stay >2.7 GHz and keeping case temps lower for nearby SSDs and RAM.
Is a 1300 W PSU overkill?
Not really. Benchmarks show 4090 + i9-14900KS spikes past 950 W at transient loads. An 80+ Platinum 1300 W unit provides headroom, better efficiency, and reduces coil whine.
Can a mini-ITX case handle a liquid 4090 safely?
Yes—if the chassis supports 240 mm rads and high-flow side intakes, temps stay in the 60 s °C. Just ensure you have unobstructed vents and clean filters monthly.
Final Thoughts
A liquid-cooled RTX 4090 PC delivers the quietest, coolest route to 4 K 240 Hz domination—and keeps your desk looking as sleek as a sci-fi prop. Whether you crave the dual-loop luxury of the MSI Infinite RS, the slick custom glass tubes of CyberPower’s Hydro X Pro, or the suitcase-sized punch of CLX’s Ra AQUA-Micro, each rig above is a turn-key rocket ship for the next five years of gaming.
Ready to unleash maximum frames with minimum fan roar? Tap “Check current price on Amazon” on the build that suits your space and budget, plug in that 240 Hz OLED, and enjoy the new definition of buttery smooth.





