Shopping for a power supply unit (PSU) can sound boring. But it’s not! The PSU is the heart of your PC. Without it, nothing turns on. If you’re building a gaming rig or a high-performance machine, an 850W PSU is the sweet spot. It’s like the Swiss army knife of power supplies—strong, flexible, and ready for anything.
Why 850 watts? It’s enough for powerful GPUs, CPUs, loads of fans, and maybe even some RGB bling. Too little power and your system might crash. Too much, and you’re just wasting energy and money. So, let’s dive into the best 850W PSUs you can buy today. Don’t worry—we’ll keep it fun!
What Makes a PSU Great?
Before looking at the best models, let’s talk about what makes a PSU worth your money.
- Efficiency: Look for an 80 PLUS certification. Gold or better is ideal.
- Modular design: Modular PSUs let you use only the cables you need. Less clutter!
- Quiet fans: No one likes a noisy PC. Good PSUs are almost silent.
- Stable power: Good voltage regulation keeps your components safe.
- Brand reliability: Stick with names you can trust. Cheap PSUs can fry your gear.
Alright! Now that you know what to look for, let’s check out the best 850W PSUs available right now.
1. Corsair RM850x (2021)
This one is a fan favorite—for good reason. The Corsair RM850x offers great efficiency and silent operation.
- 80 PLUS Gold certified
- Fully modular
- Zero RPM fan mode under low loads
- 10-year warranty
It’s a beast and barely makes a peep. Great for gamers and content creators alike.
2. EVGA SuperNOVA 850 G6
The EVGA SuperNOVA series is legendary. The 850 G6 continues that tradition.
- 80 PLUS Gold certified
- Fully modular
- Compact design for easier cable management
- Eco-mode for silent running
This PSU is rock-solid and offers amazing value. Plus, EVGA offers terrific customer support.
3. Seasonic Focus PX-850
Seasonic is known for building some of the best PSUs on earth. The Focus PX-850 is no exception.
- 80 PLUS Platinum rated—super efficient!
- Fully modular
- Hybrid fan mode for low noise
- Premium Japanese capacitors
It might cost a bit more, but it’s future-proof and built like a tank.
4. ASUS ROG Thor 850W Platinum II
This one’s not just strong. It’s also stylish.
- 80 PLUS Platinum certified
- OLED display shows real-time power draw
- ARGB lighting support
- Fully modular
Perfect for RGB lovers and ASUS ROG fans. It costs more but you get cool extras.
5. be quiet! Straight Power 11 Platinum 850W
If silence is golden, this PSU is a treasure chest. The be quiet! Straight Power 11 is whisper-quiet and ultra-efficient.
- 80 PLUS Platinum efficiency
- Silent Wing 3 fan for ultra-quiet operation
- Fully modular
- Wire-free internal design for better airflow
This is the one for silent PC lovers. Amazing build quality too.
6. NZXT C850
NZXT makes pretty cases, and now they make solid PSUs too. The C850 matches minimal style with strong performance.
- 80 PLUS Gold efficiency
- Fully modular
- Flat black cables for easy routing
- Works great with NZXT’s CAM software
Good match if you already own other NZXT gear.
Which One Should You Choose?
If you want power, silence, and reliability, it’s hard to go wrong with any of these choices. Here’s a quick cheat sheet:
- Best for quiet builds: be quiet! Straight Power 11
- Best overall: Corsair RM850x
- Best for bling: ASUS ROG Thor 850W
- Best budget powerhouse: EVGA SuperNOVA 850 G6
- Most efficient: Seasonic Focus PX-850
Need something with extra features? Pick the ASUS ROG Thor. Want something that just works, no bells and whistles? The Corsair RM850x or EVGA are great choices.
Future-Proofing Your Build
850W is a great middle ground for most users. But what if you upgrade later? That’s where a good PSU shines. These PSUs have room to grow. You could drop in a more powerful GPU next year, and they’ll still keep up.
Plus, with high-quality parts and long warranties, your PSU should last through several builds. That’s value.
Final Thoughts
Picking the right 850W PSU doesn’t have to be hard—or boring! Look for efficiency, modular cables, and quiet fans. Stick with trusted brands. With a great PSU, your PC won’t just work—it’ll run cool, quiet, and smooth.
So power up, and give your build the heart it deserves. Happy building!