Solved PSU: 650W 80+ VS 750W Tags: Power Supplies Components Last response: May 23, 2012 8:36 PM in Components Share Bofink May 22, 2012 8:04:57 PM General specs of my next rig i5 2500k (OC to 4,2Ghz) 8Gb 1333Mhz RAM Antec H2O 620 cpu cooler Gigabyte Radeon HD 7870 OC Version around 5 fans ASRock Z68 MOBO 500gb HDD 120Gb SSD Which one of these PSUs should I buy? Rasurbo Real&Power 650W 80+ http://www.mindfactory.de/product_info.php/info/p688576... Rasurbo GaminX&Power 750W http://www.mindfactory.de/product_info.php/info/p667804... Will the 650W be enough or should I go for the 750W? (same price) More about : psu 650w 750w Best solution Rugger a c 158 ) Power supply May 22, 2012 8:40:33 PM Share A system with an HD7870 requires a good qualty 500W PSU with 32A on the 12V rails and two 75W PCIe power connectors. Your system only has a mild OC on the processor....taking a look at the site you linked a great PSu for around the same price is the Superflower Golden Green 550W: http://www.mindfactory.de/product_info.php/info/p688894... or the Seasonic S12II-520: http://www.mindfactory.de/product_info.php/info/p640838... That Superflower is a great PSU and would be my preference. It's 80+ Gold and well reviewed by many reputable sites. The 45A on the 12V rail is more than enough for your build and significant OCs on the CPU and GPU. delluser1 a c 243 ) Power supply May 22, 2012 8:48:46 PM +1 Those higher wattage Raspberries are cheaper for a reason Related resources URGENT SMPS selection 650w vs 750w - Forum XFX XXX 650W vs . Corsair 750TX 750W - Forum New improved "D3" Cooler Master 650W and 750W GX PSUs in the US? - Forum Would 750W last longer than 650W ? - Forum 650w or 750w psu and are my parts compatible? - Forum Can't find your answer ? Ask ! Get the answer jwk3 a b ) Power supply May 22, 2012 10:46:59 PM Bofink said: Which one of these PSUs should I buy? (same price) The answer is neither out of those two. The options that Rugger said are much better options. ko888 a c 1108 ) Power supply May 23, 2012 5:14:55 AM Rasurbo has a reputation for crappy PSUs because of the OEM they use. Any company that uses HEC/Compucase as the OEM for their power supplies suffers from that same stigma. Bofink May 23, 2012 4:08:28 PM Alright, going for the SuperFlower Thanks Rugger for the good post Bofink May 23, 2012 4:08:53 PM Best answer selected by Bofink. Rugger a c 158 ) Power supply May 23, 2012 8:36:20 PM Glad I could help - ty for the BA. Can't find your answer ? Ask ! Publish Related resources http://www.tomshardware.com/forum/ [...] ended-psus Forum http://www.tomshardware.com/forum/ [...] lies-guide Forum http://www.tomshardware.com/forum/ [...] ended-psus Forum http://www.tomshardware.com/forum/ [...] lies-guide Forum 650W or 750W Seasonic Forum 250W cheap PSU vs 750W 80 + Forum XFX Pro 850w CE vs Sea Sonic JS 750w Forum 750W Showdown: HCG-750 vs TruePower TP-750 vs . Cooler Master RS750 Forum SeaSonic SS-750AT 750Watt VS Antec HCG 750W 80 Plus Bronze Forum Silverstone Strider Pro vs Corsair TX 750W Forum Which Psu 650w or 750w Forum 450w, 550w, 650w , or 750w PSU ? Forum Good reliable 650w + psu gold rated Forum 750w XFX PSU too much? Forum Is 650W enough Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !