GPU's For rendering

[PyroDeathAdder(Pyro)]

so currently I have one GPU(GeForce GTX 970) and one CPU(intel(R) Core(TM) i7-4790K CPU @ 4.000GHz (8 CPU's), ~4.0GHz) and tbh it takes while to render, i was looking to add 2 more GPU's. i'm not much into the technical side of computers i was just wondering the best GPU's for this and would it be possible and safe 

[Electronics Wizardy]

what program are you rendering with?

 

what board?

[PyroDeathAdder(Pyro)]

with blender, board? mother board?

[Electronics Wizardy]

2 minutes ago, PyroDeathAdder(Pyro) said:

with blender, board? mother board?

motherboard?

 

your using cycles right?

 

how much vram do you need?

budget?

[PyroDeathAdder(Pyro)]

3 minutes ago, Electronics Wizardy said:

motherboard?

 

your using cycles right?

 

how much vram do you need?

budget?

not really sure what mother board i have, someone made it for me, didnt make the mother board but just put all the stuff in my pc. yeah cycles. and vram whatever would make it render fast, budget. is say most £1500($1937)

[Electronics Wizardy]

1 minute ago, PyroDeathAdder(Pyro) said:

not really sure what mother board i have, someone made it for me, didnt make the mother board but just put all the stuff in my pc. yeah cycles. and vram whatever would make it render fast, budget. is say most £1500($1937)

then get dual 1080ti's. make sure your psu can handle it aswell.

 

how much ram do your scenes need to render?

[PyroDeathAdder(Pyro)]

1 minute ago, Electronics Wizardy said:

then get dual 1080ti's. make sure your psu can handle it aswell.

 

how much ram do your scenes need to render?

hot do i check how much ram they each need

[Electronics Wizardy]

1 minute ago, PyroDeathAdder(Pyro) said:

hot do i check how much ram they each need

look at vram usage when rendering

[PyroDeathAdder(Pyro)]

the render says (Mem: 25.72M, Peak: 34.72M)