The ASUS ROG Loki SFX-L 1000W Platinum is the objective winner of this comparison, securing victories in four out of seven evaluated specifications. Its most impactful advantage over the Corsair RM850x is the inclusion of a 12VHPWR connector, which represents a 100% improvement in connectivity capability. This feature ensures the unit is fully prepared for modern hardware requirements that rely on this specific power delivery standard, whereas the alternative lacks this native integration.

Users building compact systems requiring high wattage and modern connectivity should choose the ASUS ROG Loki SFX-L 1000W Platinum for its superior feature set. Conversely, the Corsair RM850x is the better option for budget-conscious builders, as it holds a 50% advantage in MSRP. If your primary goal is minimizing initial expenditure and you do not require the specific connector or form factor benefits of the ASUS unit, the Corsair model remains the more economical choice.