PSU thoughts

[Jack.EXE]

I'm looking at getting a Sapphire AMD Radeon 7870, but I only have a 450w Power Supply.

 

My Current Specs Are:

AMD phenom II x4 965 Black Edition

Diamond AMD Radeon HD 6770

8 Gb Team Elite Ram

ECS 880G Motherboard

500GB Hitachi HDD

120GB Corsair Neutron GTX

Antec VP40 450w PSU

 

My two questions are:

Will my power Supply Handle a 7870?

Will my System bottlneck a 7870?

[TB-303]

I think you will need more power, a decent 650 should do it.

[Andi]

psu can handle a 7870 with no problem, and you may lose....2-4% fps with your cpu(vs 3570k), but thats not really a problem considering you had a 6770 before... ^^

[Andi]

I think you will need more power, a decent 650 should do it.

sure...a system that sucks maybe 250W really needs a 650w psu...

[TB-303]

sure...a system that sucks maybe 250W really needs a 650w psu...

Better to have some headroom, and future proof it in case he wants to change anything else.

[Andi]

Better to have some headroom, and future proof it in case he wants to change anything else.

do you know how much power a 3770k + titan needs? 300W... even than he would be fine. If you don't plan to go sli/crossfire you don't need more than 500w ever. And considering his spec it dosen't look like he has money to burn for no reason.

 

how did you come up with your watt number, im curious!

[TB-303]

do you know how much power a 3770k + titan needs? 300W... even than he would be fine. If you don't plan to go sli/crossfire you don't need more than 500w ever. And considering his spec it dosen't look like he has money to burn for no reason.

 

how did you come up with your watt number, im curious!

If he was to upgrade he would want to go higher, so he doesn't have to buy again for a few years, that's all.

[Andi]

but where is the logic in that? why buy now a psu that you don't need? in 2 years you may get a gold psu for the same price what you would pay now for bronze. never futureproof, never buy stuff you may need. when you need it there will always be something way better for the same price.

[Jack.EXE]

psu can handle a 7870 with no problem, and you may lose....2-4% fps with your cpu(vs 3570k), but thats not really a problem considering you had a 6770 before... ^^

 

Thanks, I feel plenty confident now.

[Godlygamer23]

You can also go here to see how much power your components will pull.

[Mr. Brovahkiin]

but where is the logic in that? why buy now a psu that you don't need? in 2 years you may get a gold psu for the same price what you would pay now for bronze. never futureproof, never buy stuff you may need. when you need it there will always be something way better for the same price.

You. I like you

[That Norwegian Guy]

You can also go here to see how much power your components will pull.

 

^^That. Find out what you need and use it.

[MegaTechPC]

A good 450W PSU is fine for any single GPU video card in that configuration, not to mention a fairly efficient one like a 7870.