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Sapphire R9 280X needs 750W PSU?

post #1 of 2
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I am wondering why Sapphire is saying that R9 280XVapor X and Toxic needs a 750W PSU?
7970 and GHz edition required 500W.
So why 750W now?

could anyone please shed light on whats up with this?
post #2 of 2
Quote:
Originally Posted by Rar4f View Post

I am wondering why Sapphire is saying that R9 280XVapor X and Toxic needs a 750W PSU?
7970 and GHz edition required 500W.
So why 750W now?

could anyone please shed light on whats up with this?

Its just Sapphire covering their backsides for people who use cheap PSU's, GPU makers have been rating GPU's like this for years. The Toxic does seem to pull a little extra power on average compared to a 7970GHz or a Vanilla 280x, only about 20W on load. It'll be fine on a 450/500W PSU. Highest I've seen one in pull was an overclocked 280x Toxic on AnandTech, and that used 513W for the entire system in Furmark. Actual games put total system use at around 350W.
    
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CPUMotherboardGraphicsRAM
[Intel][2600K][5GHz][HT ON] [Gigabyte][Z77X][UP5-TH] [EVGA][GTX980]Classified][1585/8150] [Corsair][Dominator Platinum][32GB][2166MHz] 
Hard DriveHard DriveHard DriveCooling
[Samsung][840 EVO x 4][RAID 0] [Western Digital][Red][2TB][RAID0] [Samsung][F3][500GB][RAID1] Full EKWB Custom Loop 
OSMonitorKeyboardPower
[Windows][7][Ultimate][64 Bit] [Dell][U2713HM] + [LG] [24MP55 x2] [DAS][Ultimate Model S] [Corsair][HX850] 
CaseMouseMouse PadAudio
[Corsair][800D] [Mad Catz][R.A.T. 7] [Corsair][MM200] [MicroMega][MyZic][DAC] 
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