Cougar POLAR 1050W vs Cougar STX 650W

A side-by-side spec comparison of the Cougar POLAR 1050W and the Cougar STX 650W. We line up every specification and score the ones that matter most in this category — weighted, not a raw count of specs won — to reach an overall verdict so you can decide which power supply is right for your build.

Side-by-side specification comparison of Cougar POLAR 1050W and Cougar STX 650W.
Specification	Cougar POLAR 1050W No price data Winner	Cougar STX 650W No price data Buy on Newegg
Modular	full	non-modular
Wattage	1050W	650W
Efficiency	80+ Platinum	80+
Form Factor	ATX	ATX

Winner: Cougar POLAR 1050W — driven by Efficiency (80+ Platinum), Wattage (1050W), Modular (full)

Cougar POLAR 1050W

performance points

Cougar STX 650W

performance points

Winner is scored by weighting the specs that matter most in this category (not a raw count of specs won).

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