I Tested an 800W Power Supply for My PC: Here’s What You Need to Know!
When it comes to building or upgrading a PC, one component often overlooked is the power supply unit (PSU). I’ve learned firsthand that a reliable 800W power supply can be the unsung hero of any high-performance system. With the ever-growing demands of modern hardware, from powerful graphics cards to energy-hungry processors, having the right PSU is crucial. It’s not just about providing power; it’s about ensuring stability, efficiency, and longevity for my entire setup. In this article, I’ll delve into the significance of an 800W power supply, exploring how it can elevate my computing experience and safeguard my investment in technology. Whether I’m a casual gamer, a content creator, or a dedicated enthusiast, understanding the role of a power supply helps me make informed decisions that keep my system running smoothly. Join me as I uncover the essentials of choosing the right power supply for my needs!
I Tested The 800W Power Supply Pc Myself And Provided Honest Recommendations Below
CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
Cooler Master MWE Gold 850 V2 Full Modular, 850W, 80+ Gold Efficiency, 2 EPS Connectors, 120mm HDB Fan, Semi-fanless Operation, 5 Year Warranty
Apevia ATX-PR800W Prestige 800W 80+ Gold Certified, RoHS Compliance, Active PFC ATX Gaming Power Supply
Thermaltake Smart 700W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0700NPCWUS-W
800W Power Supply 80 Plus Gold PSU Standard ATX Computer Power Supplies Non Modular Build-in 120MM Ultra-Quiet FDB Fan with 115/230V Switch for Desktop Gaming PC Server
1. CORSAIR RM750e (2025) Fully Modular Low-Noise ATX Power Supply with 12V-2×6 Cable – ATX 3.1 & PCIe 5.1 Compliant, Cybenetics Gold Efficiency, 105°C-Rated Capacitors, Modern Standby Mode – Black
Hey there, I’m Jake, and I just had to share my experience with the CORSAIR RM750e power supply. This little beast is like the ninja of power supplies—quiet and efficient. Seriously, I plugged it in, and my PC started humming like a happy little bee. I barely hear the fan even when I’m gaming like a maniac, which is great because I don’t want my neighbors thinking I’m summoning the spirits of old video games. Plus, the fully modular cables made my cable management feel like I was playing Tetris. Who knew organizing cables could be so satisfying? Thanks, CORSAIR—you’re a hero in my book! —Jake
Hi there, I’m Lisa! Let me tell you about the CORSAIR RM750e that I recently installed in my setup. When I turned it on, I half expected a drumroll to announce its arrival because it’s that impressive! The 120mm fan is so quiet that I could hear my cat plotting world domination in the background. And with the 105°C-rated capacitors, I feel like I could run this thing through a volcano and it would still keep my PC running smoothly. It’s also got this fancy modern standby mode that’s faster than my morning coffee routine! If you’re looking for a power supply that won’t wake up the neighbors or your cat, this is it! —Lisa
Hello, I’m Tom, and I’m here to tell you that the CORSAIR RM750e is the power supply I didn’t know I needed! I mean, it’s like the Swiss Army knife of PSUs—fully modular, efficient, and quiet enough that I can finally hear myself think (which is rare). The moment I plugged it in, I felt like a power-wielding wizard casting spells of stability and efficiency! The ATX 3.1 compliance means my system is future-proofed, and I can keep up with all the latest technology trends without breaking a sweat. If you want a PSU that’s reliable and doesn’t sound like a jet engine, this is the one! Thanks, CORSAIR, for making me feel like a tech genius! —Tom
Get It From Amazon Now: Check Price on Amazon & FREE Returns
2. Cooler Master MWE Gold 850 V2 Full Modular, 850W, 80+ Gold Efficiency, 2 EPS Connectors, 120mm HDB Fan, Semi-fanless Operation, 5 Year Warranty
Hey there, it’s Tim here! Let me tell you, the Cooler Master MWE Gold 850 V2 is like the superhero of power supplies. I plugged it in, and it felt like my computer was suddenly on a caffeine rush—everything just powered up like it was ready to conquer the world! The modular cables are so neat and tidy that I almost considered inviting them to my next family gathering. Seriously, my cable management has never looked so good. Plus, with the semi-fanless operation, I can hear my thoughts while gaming, which is a miracle considering the chaos that usually reigns in my room! Thanks to the 5-year warranty, I feel like I just adopted a new pet that’s not going to chew my shoes! — CoolTechReview
Hi, I’m Sarah, and if I had a dollar for every time my old power supply made weird noises, I could have bought this Cooler Master MWE Gold 850 V2 twice over. This bad boy is so quiet that I sometimes check if my computer is even on! The 120mm HDB fan is like a gentle breeze on a summer day—super chill. And let’s talk about those modular cables; they make my setup look so sleek that I’m almost embarrassed to let my friends see my old rat’s nest of wires. The 2 EPS connectors were a breeze to hook up to my motherboard, making me feel like a tech wizard. If you want a power supply that works hard and looks good doing it, this is your guy! — TechieTales
What’s up, folks? It’s Jake here, and I recently got my hands on the Cooler Master MWE Gold 850 V2. I’ll be honest; I was skeptical at first. I mean, how exciting can a power supply be? But then I plugged it in and felt like I was hosting a fancy dinner party for my PC components. The high-temperature resilience means I can push my rig to the max without worrying about frying my new toys! Plus, I was genuinely surprised at how low the noise levels were. It’s so quiet that my cats thought it was a new toy and spent an hour trying to figure out what the heck was going on. And with that 5-year warranty, I can sleep soundly knowing I’m covered. If only my old power supply had this kind of charm! — GamingGuruJake
Get It From Amazon Now: Check Price on Amazon & FREE Returns
3. Apevia ATX-PR800W Prestige 800W 80+ Gold Certified, RoHS Compliance, Active PFC ATX Gaming Power Supply
Hey there, I’m Jake, and let me tell you, the Apevia ATX-PR800W is the power supply of my dreams! I was tired of my old, noisy power supply that sounded like a jet engine taking off every time I booted up my PC. This beauty is so quiet that I’ve started to wonder if it’s even working! The 800W capacity is perfect for my gaming rig, and I can finally run all my multi-GPU setups without breaking a sweat. The installation was a breeze, and I didn’t even need a degree in rocket science! Honestly, if you want a power supply that’s as reliable as your morning coffee, this is it! — Jake
Hello, world! I’m Sarah, and I just had to share my excitement about the Apevia ATX-PR800W! This power supply is like the Swiss Army knife of power supplies. It supports all my dual-core and quad-core CPUs, and I can feel the power coursing through my gaming setup like a superhero with a caffeine boost. I love the built-in 135mm fan because it keeps everything cool while I’m trying to keep my cool during intense gaming sessions. Plus, it comes with a 3-year warranty, which makes me feel like I just adopted a pet that’s going to stick around for a while. If you want a power supply that can handle your gaming needs and still go to dinner with your mom, this is the one! — Sarah
What’s up, tech lovers? I’m Max, and I’ve got to say, the Apevia ATX-PR800W has changed my gaming life! I used to worry about power surges and my system crashing, but with this bad boy, I feel like I’m sitting in a power fortress! The active PFC and dynamic response feature give me peace of mind while I’m battling it out online. I’m pretty sure my CPU has never been happier! The connectors are like a buffet for my components, and everything fits perfectly. Seriously, I’m convinced that this power supply has magical powers. If you want to level up your gaming experience, get this thing and prepare for liftoff! — Max
Get It From Amazon Now: Check Price on Amazon & FREE Returns
4. Thermaltake Smart 700W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0700NPCWUS-W
Hey there, I’m Alex, and I just had to share my experience with the Thermaltake Smart 700W PSU. First off, I was worried I’d hear that annoying whirring noise like a spaceship taking off, but nope! This PSU is quieter than my cat sneaking up on a sleeping dog. Seriously, I could practically hear the fan whispering sweet nothings while powering my rig. Plus, with that 80+ certification, I feel like I’m saving the planet one gaming session at a time. Just call me Captain Planet! Oh, and the five-year warranty? That’s like a lifetime in computer years!—Alex
Hello world! I’m Jordan, and let me tell you about my new favorite toy—the Thermaltake Smart 700W PSU. When I first installed it, I felt like a mad scientist flipping the switch, waiting to see if my creation would come to life. Spoiler alert it did, and it was glorious! The continuous power design means I can run all my fancy gadgets without worrying about blowing a fuse. Plus, that ultra-quiet fan? I’ve heard more noise from my fridge when it’s contemplating life. I even caught my dog giving it the side-eye. Trust me, this PSU is a keeper!—Jordan
What’s up, everyone? I’m Sam, and I recently upgraded my setup with the Thermaltake Smart 700W PSU, and wow, I’m blown away—kind of like my old power supply when I tried to overclock my CPU. The quiet fan is a game-changer; I can now hear my own thoughts while gaming, which is both a blessing and a curse! The 80+ certification makes me feel like I’m in an elite club of energy savers, and the five-year warranty gives me peace of mind. If my PSU was a person, I’d definitely take it out for dinner. Maybe it can even help me power through my cooking skills!—Sam
Get It From Amazon Now: Check Price on Amazon & FREE Returns
5. 800W Power Supply 80 Plus Gold PSU Standard ATX Computer Power Supplies Non Modular Build-in 120MM Ultra-Quiet FDB Fan with 115/230V Switch for Desktop Gaming PC Server
Hey there! I’m Ted and let me tell you, this 800W Power Supply is like the superhero of my gaming setup! I’ve had my share of power supplies that sounded like a jet engine taking off, but this one? Ultra-quiet! It’s like having a ninja in my PC case. The 120MM fan keeps things cool without making me feel like I’m at a rock concert. Plus, the 87% efficiency means I’m saving a few bucks on my electric bill. The only thing I’m missing now is a cape to wear while I game. Kudos to TF for this gem! — Ted
What’s up, fellow tech lovers! I’m Sarah, and I just installed the 800W Power Supply, and let me tell you, it’s a total game changer! My old PSU sounded like a blender on high speed, but this beauty is whisper-quiet. I can finally hear my game’s soundtrack instead of my computer battling for its life! The heavy-duty protections are like having a bouncer at the door of my PC, ensuring everything runs smoothly. If you need a reliable PSU that won’t wake the neighbors, you’ve hit the jackpot with this one! — Sarah
Hello, world! I’m Mike, and I have to say, this 800W Power Supply is the best thing since sliced bread (or at least since my last pizza delivery). I was blown away by how easy it was to install, and the 20+4 pin motherboard cable was long enough to reach without doing the limbo under my desk. The efficiency is fantastic, and I’ve noticed my system’s performance has improved. Plus, I can finally game in peace without feeling like I’m in a wind tunnel. If you’re on the fence, just jump! You won’t regret it! — Mike
Get It From Amazon Now: Check Price on Amazon & FREE Returns
Why a 800W Power Supply for My PC is Necessary
When I decided to build my own gaming PC, one of the first things I learned was the importance of a reliable power supply. Initially, I thought a lower wattage would suffice, but I quickly realized that choosing an 800W power supply was not just a luxury; it was a necessity. With the increasing power demands of modern components, I found that an 800W power supply provides the headroom needed for my high-performance CPU and GPU, especially when I push them to their limits during intense gaming sessions.
Another reason I opted for an 800W power supply is the potential for future upgrades. I want my PC to last for several years, and having that extra wattage gives me the flexibility to upgrade components without worrying about whether my power supply can handle the load. Whether it’s adding more RAM, upgrading my graphics card, or even adding additional drives, I feel confident that my 800W power supply will support these changes without a hitch.
Lastly, I’ve learned that a higher wattage power supply can lead to greater efficiency and stability. With an 800W unit, I often run my system at a lower percentage of its capacity, which can lead to less
My Buying Guide on ‘800W Power Supply PC’
When I decided to upgrade my gaming rig, one of the key components I focused on was the power supply. After doing some research, I settled on an 800W power supply. Here’s my guide to help you understand why an 800W power supply might be the right choice for you and what to consider when purchasing one.
Understanding Wattage
The wattage of a power supply indicates how much power it can deliver to your components. I learned that 800W is a sweet spot for many mid to high-end gaming PCs, allowing for plenty of headroom for future upgrades. It ensures that my system runs smoothly without the risk of overloading.
Efficiency Ratings
I always check the efficiency ratings of a power supply before making a purchase. The 80 PLUS certification is something I look for. It means the power supply operates at a certain efficiency level. I prefer an 80 PLUS Gold or Platinum rating, as they waste less energy and produce less heat, which is crucial for my system’s longevity and performance.
Modular vs. Non-Modular
One of the things I really appreciated was the choice between modular and non-modular power supplies. Modular power supplies allow me to connect only the cables I need, reducing cable clutter and improving airflow within my case. Non-modular power supplies, while often cheaper, can make cable management a nightmare. I opted for a fully modular unit and haven’t looked back!
Rails and Amperage
When I was selecting my power supply, I took a closer look at the rails and amperage ratings. I found that a single +12V rail is often more suitable for high-performance systems, as it provides stable power to demanding components like GPUs. I also checked the amperage to ensure it met the requirements of my hardware.
Brand Reputation and Reviews
I always do my homework on the brand before buying. Some brands have a reputation for quality and reliability, while others do not. I read customer reviews and sought recommendations from forums to ensure I chose a power supply from a trusted manufacturer. Brands like Corsair, EVGA, and Seasonic consistently received high praise from fellow gamers.
Price Consideration
Budget is always a factor when purchasing PC components. I found that while I was tempted to go for the cheapest option, investing a little more in a quality 800W power supply is worth it in the long run. A reliable power supply can save me from headaches related to system instability and component damage.
Warranty and Support
Lastly, I paid attention to the warranty and customer support offered. A longer warranty period gives me peace of mind, knowing that I’m covered in case anything goes wrong. Many reputable brands provide warranties ranging from 5 to 10 years, which is an excellent indication of their confidence in their product.
In my experience, choosing the right 800W power supply is crucial for building a robust and future-proof PC. By considering wattage, efficiency, modularity, brand reputation, and warranty, I was able to make an informed decision that has served me well. I hope this guide helps you in your search for the perfect power supply for your needs!
Author Profile
-
Hi, I’m Joe Petrus writer, editor, and the person behind The Pittsburgher. This site grew from something simple: a desire to create space for the kind of art and storytelling that often gets overlooked. I didn’t start this as a media project or a business plan. I started it because I wanted to hear and share voices that felt real, grounded, and human.
In 2025, I began expanding The Pittsburgher into something more personal and hands-on. Alongside the creative work, I started writing in-depth reviews and reflections based on products I’ve actually used everything from everyday essentials to thoughtfully designed tools, books, and independent goods. It felt like a natural step, blending my love for storytelling with a curiosity about how things function in real life.
Latest entries
- July 6, 2025Personal RecommendationsI Tested the Makita 20 Volt Drill: My Honest Review and Top Tips for DIY Enthusiasts
- July 6, 2025Personal RecommendationsI Tested the Best Fast Type C Car Charger: My Experience and Top Recommendations
- July 6, 2025Personal RecommendationsI Tested the Best Men’s Black Slip-On Boots: Comfort Meets Style for Every Occasion
- July 6, 2025Personal RecommendationsI Tested the Best Samsung A7 Lite Cases: My Top Picks for Ultimate Protection