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Quick answer: For a 2026 build, the CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready is the power supply we would build around, while the CORSAIR HX1200i (2025) Fully Modular is the budget-friendly choice.
Choosing the best psus for 4k gaming 10 for a 2026 build comes down to picking parts that play nice together. Below we run through five power supplies, judging each on compatibility, real-world fit, and the value it brings to 4K gaming.
Top 5 at a Glance
Builder’s Checklist
Everything here is graded the way a builder actually thinks: does it fit, does it work with your other parts, and where it sits in a balanced 2026 build. Each option above suits a different build and budget for 4K gaming.
Quick Comparison Table
| Pick | Power Supply | Best For | Price |
|---|---|---|---|
| 1 | CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Ful | Pick 1 | $159.99 |
| 2 | ASUS ROG Strix 1200W Platinum (Fully Modul | Pick 2 | $255.0 |
| 3 | ASUS TUF Gaming 1000W Gold (1000 Watt | Pick 3 | $169.99 |
| 4 | be quiet! Pure Power 13 M 1000W Power Supp | Pick 4 | $139.9 |
| 5 | CORSAIR HX1200i (2025) Fully Modular Ultra | Pick 5 | $299.99 |
1. CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Ful — Pick 1
Looking at it from the bench, the Corsair power supply is the centerpiece of the build for 4K gaming. With ATX 3.1, PCIe 5, Modular, it mates cleanly with the rest of your parts. If you want parts that just go together, add it to the list.
- Pros: ATX 3.1 spec
Great compatibility
Builder-friendly - Cons: Premium price
May exceed modest budgets
CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W Power Supply – Low-Noise, Cybenetics Gold Efficiency, Native 12V-2x6 Connector – Black
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
2. ASUS ROG Strix 1200W Platinum (Fully Modul — Pick 2
If you’re putting a rig together, the Asus Rog power supply is a step-up option for 4K gaming. The 1200W, Modular, 80 Plus Platinum keep compatibility and setup painless. For a hassle-free build aimed at 4K gaming, it is a safe bet.
- Pros: 1200W spec
Great compatibility
Pairs well with common parts - Cons: Not class-leading
Verify compatibility
Prime ASUS ROG Strix 1200W Platinum (Fully Modular Power Supply, 80 Plus Platinum Certified, ATX 3.1, GaN MOSFET, GPU-First Intelligent Voltage Stabilizer, 10-Year Warranty)
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
3. ASUS TUF Gaming 1000W Gold (1000 Watt — Pick 3
If you’re putting a rig together, the ASUS power supply is a dependable middle-of-the-road pick for 4K gaming. The 1000W, 1000 W, ATX 3.0 keep compatibility and setup painless. If you want parts that just go together, add it to the list.
- Pros: 1000W spec
Builder-friendly
Easy to fit in a build - Cons: Not class-leading
Check current pricing
Prime ASUS TUF Gaming 1000W Gold (1000 Watt, ATX 3.0 Compatible Fully Modular Power Supply, 80+ Gold Certified, Military-Grade Components, Dual Ball Bearing, Axial-tech Fan, PCB Coating, 10 Year Warranty)
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
4. be quiet! Pure Power 13 M 1000W Power Supp — Pick 4
If you’re putting a rig together, the Be Quiet power supply is a reliable all-rounder for 4K gaming. The 1000W, ATX 3.1, PCIe 5 keep compatibility and setup painless. For a hassle-free build aimed at 4K gaming, it is a safe bet.
- Pros: 1000W spec
Great compatibility
Pairs well with common parts - Cons: Not class-leading
Check current pricing
be quiet! Pure Power 13 M 1000W Power Supply, 80 Plus® Gold Certification, ATX 3.1 PSU, Support for PCIe 5.1 GPUs, semi-Passive 120mm be quiet! Fan, LLC Technology, Single Rail, for Overclocked GPUs
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
5. CORSAIR HX1200i (2025) Fully Modular Ultra — Pick 5
Fitting into a 2026 build, the Corsair power supply is the smart budget pick for tighter builds aimed at 4K gaming. The Modular, ATX 3.1, PCIe 5 keep compatibility and setup painless. For a hassle-free build aimed at 4K gaming, it is a safe bet.
- Pros: Modular spec
Great compatibility
Easy to fit in a build - Cons: Not the fastest option
Check long-term needs
CORSAIR HX1200i (2025) Fully Modular Ultra-Low Noise ATX Power Supply with 12V-2x6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Platinum Efficiency, Fluid Dynamic Bearing Fan – Black
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated.
Builder’s Buying Guide: Fitting It Into Your Rig
Check Compatibility First
Before pulling the trigger, double-check the power supply suits your platform and the rest of your 2026 build — sockets, sizes, connectors, and clearances all have to line up.
Match It to Your Budget
Work out how big a slice of your build budget this deserves based on how hard 4K gaming leans on the power supply, then settle on the tier that weighs cost against headroom.
Plan for Upgrades
A sensible power supply pick leaves headroom to grow, so go with one that won’t choke a later upgrade and keeps your build useful for years.
Related Guides
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Want more on this subject? Have a look at the hand-picked guides below — each one runs through the same scoring rubric used in this review.
Top picks from this guide
be quiet! Pure Power 13 M 1000W Power Supply, 80…$140 \xc2\xb7 80/100CORSAIR RM1000x ATX 3.1 PCIe 5.1 Ready Fully Modular 1000W…$160 \xc2\xb7 80/100CORSAIR HX1200i (2025) Fully Modular Ultra-Low Noise ATX Power Supply…$300 \xc2\xb7 80/100ASUS TUF Gaming 1000W Gold (1000 Watt, ATX 3.0 Compatible…$170 \xc2\xb7 80/100
