Power your gaming build for 18% less with robust Corsair 850W PSU deal
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The power supply unit in any build is the most crucial component, but gets overshadowed by the processor, graphics card, motherboard, RAM, and other components. The PSU isn’t only responsible for powering the entire system but also safeguarding your investment, so skimping on a robust and high-efficiency power supply unit is never recommended. The Corsair RM850x is an excellent unit for those looking to build a high-end PC for gaming and productivity.
It is ATX 3.1 and PCIe 5.1 compliant, fully modular, has a gold efficiency rating, sports 100% Japanese 105°C capacitors, and an overall robust build. The massive 140mm fan also does a great job of keeping it cool without making a lot of noise. So, for a discounted price of $139.99, we think it is worth checking out.
CORSAIR RM850x
What the Corsair RM850x has to offer
A high efficiency rating, plenty of OC overhead, and a 12V-2×6 connector
The Cybenetic Gold efficiency rating is something that deserves a lot of attention. According to the testing done by Cybenetics, this power supply has an efficiency rating of 88.815% and 90.944%, respectively, with 115V and 230V connections. This is simply outstanding, as a gold rating is generally for a maximum of 89% efficiency. This means that it is above average and utilizes the majority of the power it is pulling.
Prime Day is here! We've found all the biggest and best deals from this year's event below.
- AMD Ryzenâ„¢ 9 9900X 12-Core - was $499 now $337
- CORSAIR 4000D PC Case - was $124.99 now $75.99
- Hisense 65" Class E6SR - was $549 now $377.99
- Apple 2026 MacBook Air - was $1,999 now $1,799
- Skytech Gaming PC Desktop (9850X3d) - was $3,699 now $3,199
- Apple Magic Mouse - was $79 now $59
- Samsung Galaxy Z Fold8 Ultra - was $2,099 now $1,699
- Amazon Fire HD 10 tablet - was $154 now $72
Prices correct as of October 6th, 2026.
With a capacity of 850W, you can easily install an RTX 5080 without running into any issues. This card has a 360W TDP, and if you pair it with the Ryzen 9 9950X3D, which has a 170W TDP, it’ll total to 530W with 320W left for the rest of the system. This is more than enough, and you can even overclock the GPU and processor.
On top of that, the 12V-2×6 connector, which can support 600W of power, is more than enough to handle this card and even the best GPU on the market, the RTX 5090. So, you’re in good hands, and this PSU will future-proof your setup as well.
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