Why you can trust Tom's Hardware Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
Performance, Noise and Efficiency
Performance Rating
The RM850x achieves higher overall performance, mostly because it has perfect ripple suppression and slightly better load regulation than the RM850. Nonetheless, the RM850 performs well and you shouldn't forget that it had to have a performance gap with the RM850x or else it would create strong internal competition in Corsair's portfolio.
Noise Rating
The graph below depicts the cooling fan's average noise over the PSU's operating range, with an ambient temperature between 30 to 32 degrees Celsius (86 to 89.6 degrees Fahrenheit).
The RM850x takes the lead here but the RM850 scores second place, which is a great result.
Efficiency Rating
The following graph shows the PSU's average efficiency throughout its operating range with an ambient temperature close to 30 degrees Celsius.
The overall efficiency score of the RM850 is a bit higher compared to the current RM850x model.
MORE: Best Power Supplies
MORE: How We Test Power Supplies
MORE: All Power Supply Content
Alarming amount of Texas Instrument chips found in Russian-based weapons in Ukraine — Russian military using third parties to purchase U.S-made chips
Aoostar AG02 eGPU dock with OCuLink support and 500W PSU announced for $219
China levels anti-trust charges against Nvidia – country accuses chipmaker of violating anti-monopoly regulations, examining the $7 billion Mellanox acquisition
