can an r9 270x bottleneck a 600 watt psu?

DEMOLISHER 86 · Sep 24, 2014

hi guys i have just learned that an r9 270x requires a 600 watt psu
i have a cooler master thunder 600 watt psu for the minimum requirements
would the gpu bottleneck it?
and how many power connectors are required for sustaining the card?

DonQuixoteMC · Sep 25, 2014

Well, I think the more accurate term here would be "overload." Bottlenecking simply refers to 'the weakest link' in a chain.

In this case, we use the term overload, because each component puts a certain load on the PSU. If there is too large of a load, the PSU is overloaded. This is of course a dangerzone, as you probably know!

So back to the question, will the R9 270X overload a Cooler Master Thunder 600 Watt PSU?
While there are better PSUs out there, the CM Thunder 600 should be able to adequately handle a system with a relatively normal configuration (1 GPU, 1 CPU, 1 HDD, etc.)

However, if you haven't bought the PSU yet, I suggest you look elsewhere. A great budget option is the EVGA 600B.

Also, most R9 270Xs require two 6 pin PCI power plugs. The Thunder 600W has two 6+2 Pin power connectors, so they are compatible.

Beezy · Sep 25, 2014

Depends how many amps on the 12v rail...but you should be fine. I run my HD 7870 OCd and my fx8 core OCd on a 620 watt antec

DEMOLISHER 86 · Sep 25, 2014

Beezy :

it says that the psu has 1x 12v power rail
current at dc output of - 12V=0.3A
current at dc output of +12V=47A

Beezy · Sep 25, 2014

DEMOLISHER 86 :

yes one rail but how many amps on that 12v rail?

DEMOLISHER 86 · Sep 25, 2014

Beezy :

CURRENT AT DC OUTPUT - 12V=0.3 AMPS
CURRENT AT DC OUTPUT + 12V=47 AMPS

iamlegend · Sep 26, 2014

This thread is funny. For the OP your PSU is sufficient for your GPU.
You don`t have any problem there.

Beezy · Sep 26, 2014

Yeah clearly it's sufficient I just want OP to understand what really matters in this case. Not wattage of the unit as much as amperage on that 12v rail (as far as gpu is concerned ).

You would have to look up "12v rail requirements for r9 270x" and make sure the psu can handle it.
The r9 270xonly needs 25 amps and 500w PSU. You're way in the clear OP.

https://forum-en.msi.com/faq/article/printer/power-requirements-for-graphics-cards

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can an r9 270x bottleneck a 600 watt psu?

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