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Solved Forum question
Started by TheKerangMan | | 27 answers
The new Sapphire R9 280X required 750W as stated thru their specs..but someone said true power Seasonic 620W will be good enough for the GPU..well which one is efficient and real answer..? please help me,i'm confused..Thanks in advance..
CFRTim
October 13, 2014 3:30:02 PM
This is insane. As I made my new gaming rig, I was aiming for power efficiency. From a low TDP Haswell i7 CPU to the new Maxwell GPU, my whole system is at no more than 150-175W under heavy gaming. You guys need 1000W power supplies?? Hope you are getting 4-5 times the gaming experince I am, because you're sure paying for it on your electric bill.
alsonn
October 7, 2014 5:01:18 PM
larkspur said:
The 750w requirement would be for two cards in CrossFire. I am completely sure that the Seasonic 620w is plenty for a single 280x, no worries at all.I know this is an old thread, and that the card might not in actuality need what's recommended, but the Sapphire website DOES indicate that for a single R9280x, a 750w PSU is required. It lists a 1000w for crossfire, as seen below.
PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard.
◾2X75 Watt 6-pin PCI Express power connector is required for CrossFireX™ system.
◾1X75 Watt 6-pin PCI Express power connector is required.
◾4096MBMinimum of system memory.
◾Installation software requires CD-ROM drive.
◾DVD playback requires DVD drive.
◾Blu-ray™ / HD DVD playback requires Blu-ray / HD DVD drive.
◾750 Watt Power Supply is required.
◾1000WattPower Supply is recommended for CrossFireX™ System.
◾1X150 Watt 8-pin PCI Express power connector is required.
◾2X150 Watt 8-pin PCI Express power connector is required for CrossFireX™ system.
But as previously mentioned, that's probably just Sapphire playing it way to the safe side.
tmboyz
September 17, 2014 7:56:36 PM
shit! you people worry me now, mine is a seasonic 620 bronze, running a i7-4790k OC to 4400, and a R9 280x toxic. Just these two components will take up 550w easily. This is a new setup, I don't want to run to the store (just walking distance) for a 750w, mainly because I hate opening the case and burrow around like a plumber. Hmmm...i'll wait and see how it goes. Or just walk down to the store....
Bibbit
September 17, 2014 9:36:33 AM
Gmr_Girl
September 17, 2014 12:41:19 AM
DSN
September 16, 2014 5:55:26 AM
I plugged a XFX R9 280X on a Corsair TX 650W (the enthusiast series), after I booted it started smelling really bad and I turned it off... I switched everything off right away, and nothing fried, but I hadn't had the courage to try it again. Just bought a Corsair AX 850W.
I'd go with a 750W PSU as the manufacturer says.
I'd go with a 750W PSU as the manufacturer says.
tmboyz
September 16, 2014 5:41:52 AM
Gmr_Girl said:
For me, I would want to "play it safe" as they say and buy a bigger PSU than actually needed - so, say for example you're like me and want to get Sapphire's R9 TOXIC 280X, which for all intents and purposes - plus noted in seemingly every review I've read about that card in particular - draws a bit more power than a typical R9 280x. Sapphire recommends a 750 watt PSU to run that card, a 1000w if planning to run two of them via Crossfire. I realize they're probably just putting it out there as a way to CTA (Cover Their Ass) but why take a risk? I sure as hell don't want to, especially for that kind of money, so that's why I'm going to get a Seasonic X850 just to "play it safe."
850! that's really safe, even on crossfire, SLI or whatever.
Gmr_Girl
September 15, 2014 10:15:32 PM
For me, I would want to "play it safe" as they say and buy a bigger PSU than actually needed - so, say for example you're like me and want to get Sapphire's R9 TOXIC 280X, which for all intents and purposes - plus noted in seemingly every review I've read about that card in particular - draws a bit more power than a typical R9 280x. Sapphire recommends a 750 watt PSU to run that card, a 1000w if planning to run two of them via Crossfire. I realize they're probably just putting it out there as a way to CTA (Cover Their Ass) but why take a risk? I sure as hell don't want to, especially for that kind of money, so that's why I'm going to get a Seasonic X850 just to "play it safe."
tmboyz
September 9, 2014 5:03:36 PM
TheKerangMan said:
tmboyz said:
Mine is a R9 280x toxic running on a Seasonic 620 bronze along with the i7-4790k OC to 4600. Games like BF4 maxed out on a 24" 1900x1200, for something like an hour without a problem. A good quality 620 is fine. I think the total watt requirement for a R9 280x is 300 watts on the two 8 pins connectors. And how much for a oced cpu 80w? 100? You’re still left with plenty of juice. But if you plan to crossfire, you’re better off with 1000w. i wonder how if an FX 8350 was the cpu there..will it be running fine? the TDP was 125W..!
how many watts is yours right now? 620 I think? its fine if you are doing only one thing at a time (the FX considered). Take me, I always run one single process at any one time. If you are running a heavy game and handbrake working in the background with additional twenty browsers open; you get into problems with anything less than 750
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