Solved Minimum PSU for Crossfire HD 7790? Tags: Wattage Crossfire Minimum Components 7790 HD PSU Last response: September 28, 2013 8:12 AM in Components Share Ronny927 September 28, 2013 7:46:34 AM Hi, I currently have this system setup. Intel i5 - 4670 ASrock - H81M Motherboard 2GB + 8GB DDR3 RAM 1x Sapphire HD 7790 500 Watt PSU Im planning on adding another 7790 and crossfire it with my existing one. So I want to ask what is the minimum PSU wattage that I am going to need? And yes I am aware I need 2 PCIE-2.0 6 pin cables. Thanks in advance, Ronny Im new here, please bare any typos and mistakes I make. More about : minimum psu crossfire 7790 Best solution ifreestylin September 28, 2013 7:59:44 AM AMD recommends 600W or greater. http://www.amd.com/us/products/desktop/graphics/7000/77... AMD 7790 GPU in FULL Stress = 179W CF=358W I5 4670k=125W at stock clocks Thats already 483W just for the CPU and 7790 in CF Share Ronny927 September 28, 2013 8:01:37 AM So 600 - 650 will do the job right? m 0 l Related resources HD 7790 Crossfire X Questions - Forum AMD Crossfire between Raedon HD 7770 and 7790 - Forum Radeon HD 7790 and R7 260x Crossfire? - Forum Can I crossfire a ASUS HD7790-DC2OC-2GD5 2gb edition with its 1gb counterpart? - Forum Minimum PSU for AMD crossfire - Forum Can't find your answer ? Ask ! Get the answer ifreestylin September 28, 2013 8:06:27 AM Ronny927 said:So 600 - 650 will do the job right? Yes. i have the XFXPRO 650Watt and used CF 7870 before with no problem m 0 l Ronny927 September 28, 2013 8:12:33 AM ifreestylin said:Ronny927 said:So 600 - 650 will do the job right? Yes. i have the XFXPRO 650Watt and used CF 7870 before with no problem Thanks man. m 0 l Can't find your answer ? Ask ! Publish Related resources Solvedwill an A8-5600k crossfire with a hd 7770 or 7790? Forum SolvedHD7790 Crossfire strange core clock behavior Forum SolvedCan you crossfire a AMD HD 7770 and An HD 7790 Forum SolvedCrossfire X Hd7790 With CM 550w gx II power supply Forum SolvedBest minimum PSU for Crossfire 7970 and OC 8320? Forum HD7790 & R7 260x Crossfire Forum SolvedBest PSU for AMD Radeon HD 7790. Forum Solved450W PSU for HD 7790? Forum SolvedMinimum PSU for crossfire 280x Forum HD7790 Crossfire Crashing Forum HD7790 1GB Crossfire Bottleneck? Forum Solvedxfx hd 7790 need cheap psu Forum Solvedwill hd 7790 work with 450 watt psu?? Forum SolvedWill this PSU go well with my Radeon HD 7790? Forum SolvedASUS DirectCUII Radeon HD 7790 PSU Requirements? Forum More resources Read discussions in other Components categories Power supplies Sound cards NICs Akasa Antec Cooler Master Cougar DeepCool Enermax !