The Thermaltake Toughpower GF3 850W wins in 7 out of 9 comparable specs, with 1 tie. Its biggest advantage is Warranty (233% better).
500 BQ wins in 1 spec (MSRP: 67% better).
Recommendation
Choose Toughpower GF3 850W if you want the best overall performance — especially warranty.
Choose 500 BQ if msrp matters more to you.
