Hi,
So... My 4 year old corsair cx750 is starting to put out less power and it gives me lag spikes and pc shutdowns under heavy load so I'm thinking about buying a new one. It's come to my attention that there's a psu tier list but I was wondering what tiers I should buy from and what tiers not to buy from. I'm kind of confused since my cx750 served me quite well, though only for 4 years, but it is a tier 5 psu. What could I expect from a tier 3 or tier 2 psu for example and how does it affect overclocking and what lifespan can I expect from those tiers? Would a tier 4 still be acceptabele?
My second question:
I have a 3570k which i'd like to run at 4.4ghz at around 1.25v
A 7950 at 1150core/1500mem at 1.25v
And would like to upgrade to 24gigs of ram.
PSU calc recommends me a 750w psu but I think that's overkill. The only reason I bought a 750w 4 years ago is because I thought i'd crossfire 7950's but I didn't yet. So, for a single 7950 running those specs, what psu wattage should I get? 550, 600 or maybe 650? Or should I still consider crossfiring 7950's and get another 750w? I don't think i'll actually get another 7950 anytime soon though so I'm learning towards a lower wattage psu and a new gpu down the road but what's your opinion?
So, summary:
-What to expect from a psu tier and what tiers to buy
-still crossfire 7950's or skip to a new gpu
-what psu wattage should I get because I think the psu calc is overestimating things quite a bit + considering question 2
Thanks in advance!
So... My 4 year old corsair cx750 is starting to put out less power and it gives me lag spikes and pc shutdowns under heavy load so I'm thinking about buying a new one. It's come to my attention that there's a psu tier list but I was wondering what tiers I should buy from and what tiers not to buy from. I'm kind of confused since my cx750 served me quite well, though only for 4 years, but it is a tier 5 psu. What could I expect from a tier 3 or tier 2 psu for example and how does it affect overclocking and what lifespan can I expect from those tiers? Would a tier 4 still be acceptabele?
My second question:
I have a 3570k which i'd like to run at 4.4ghz at around 1.25v
A 7950 at 1150core/1500mem at 1.25v
And would like to upgrade to 24gigs of ram.
PSU calc recommends me a 750w psu but I think that's overkill. The only reason I bought a 750w 4 years ago is because I thought i'd crossfire 7950's but I didn't yet. So, for a single 7950 running those specs, what psu wattage should I get? 550, 600 or maybe 650? Or should I still consider crossfiring 7950's and get another 750w? I don't think i'll actually get another 7950 anytime soon though so I'm learning towards a lower wattage psu and a new gpu down the road but what's your opinion?
So, summary:
-What to expect from a psu tier and what tiers to buy
-still crossfire 7950's or skip to a new gpu
-what psu wattage should I get because I think the psu calc is overestimating things quite a bit + considering question 2
Thanks in advance!
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