Hi all, I'm hoping someone can confirm/clarify something for me....
I am currently building a new gaming PC, specs are:
CPU: Intel i5 4670K
--Cooling: Coolermaster Hyper 212 Evo
RAM: Corsair Vengeance Pro (16GB / 2x8GB DDR3 2133Mhz)
Mobo: Asus Maximus VI HERO Z87
GFX: Asus R9 280X DirectCU II TOP
Sapphire R9 280X TOXIC
Once the PC is built, I will probably tweek a few bits but I won't be OC'ing crazily and I don't intend to CrossFire, I'll be fine with just the one card. If I were to upgrade my PSU, it would be to this (http://www.ebuyer.com/265709-ocz-zx-series-850w-80-gold...), but obviously I'd prefer to save the £127!
If I can't keep my PSU and need to upgrade... my next question would be Toxic vs CUII TOP?!
Any advice will be greatly appreciated!
More about :power supply query graphics card options
Both your existing PSU and your upgrade choice are solid. Your 650W Antec is adequate for the R9-280X and other system components and even has the necessary 2 x 8 pin PCIE connectors.
Thanks for such a quick reply!
Typically, I've just been looking on the scan website and noticed something... the upgrade OCZ ZX 850w PSU is "Haswell Ready (Supports C6/C7 Power States)".. my current Antec 650w is not? I'm upgrading to Haswell so..??
According to the specs on that PSU, it has 2 x 22A +12V rails and 2 x 25A +12V rails, but they are limited to 54A total, not 94A as you would expect by combining them. Still, the Processor is only an 84W CPU (max) at stock speed, and the card is rated at 300W TDP at stock speed. http://www.hwcompare.com/16010/radeon-r9-290x/
Those are the most demanding items on the +12V rail and total 32A load @ +12V. Well within the specs for your PSU. Drives, fans, etc. will be a small addition to that. The PSU appears to have the necessary PCIe connectors. So unless you want to plan for future upgrades like adding a 2nd card, the PSU should be quite fine.