what watt power supply do i need

Toggle sidebar Toggle sidebar
Sort by date Sort by votes
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990
If you want to overclock a good 850W model would do the trick. If you're leaving everything stock a 750W would be fine. In theory, if you're leaving everything at stock, a 650W PSU is enough and would probably be fine, but given that high end rig it's worth adding a little extra on the PSU so it's operating well under spec.
 
Upvote 0 Downvote
Vosgy

Vosgy

Honorable
Nov 24, 2014
715
1
11,360


A single Titan X? That is less power then a pair of 980's you would be fine with a 650-750W now.
If you want to put a second one in at some point get the 1000W.

I'd link the G2 750W but the 850w with the promo atm is $2 more, so it is worth having the extra 100W for $2 lol
 
Upvote 0 Downvote
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990
edit - I wrote this below before reading that you stepped up to a Titan X. Agreed, 650W for one, 1000W for the option of two down the track.

I'd suggest this semi-modular Antec for $85: http://pcpartpicker.com/part/antec-power-supply-hcg850m

It's a Seasonic made unit. It's not the best out there (that 1KW EVGA is both higher power and higher quality unit), but it's a very solid PSU and can handle your rig with OCing just fine.

RE 1000 vs 850W for your rig. It's very, very hard to get any socket 1150 Intel processor to draw more than 200W. Most overclocks will not approach 200W on an Intel build. The 980s are good overclockers, but again, it's hard to get them to pull huge amounts of power. Even if you somehow got those 980s to pull 250W each and the CPU to pull 200W, which is going to be extremely hard to do, you've still got 140W on the 12V rail left over.

Any "normal" gaming workload will not draw anything like that kind of power.

My opinion is that if you can handle the absolute peak a system can draw with a little leftover, you're fine, because normal gaming/productivity workloads will be substantially less. If you're bitcoin mining or folding@home, that's a different story, but for gaming or productivity rigs, you're fine IMHO.

Still, you've spent a lot on the rig and there's no question that 1KW EVGA is a good unit so if you're prepared to throw the extra money at it, it's not a bad option.
 
Upvote 0 Downvote
Pokemonking81

Pokemonking81

Reputable
Apr 19, 2015
106
0
4,690


How much better is 2 gtx 980's than a titan x and is sli scaling a problem
 
Upvote 0 Downvote
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990
Now is not a good time to buy a Titan FYI. 980ti and new ultra-high end AMD card are coming out very soon. Perhaps they won't deliver the performance that's been 'leaked' over and over for months (particularly the AMD card, that is), but it might and should at least give you other ultra high end options. The 980ti will probably offer 90% of the performance of a Titan X for substantially less money. We'll have to wait and see, but you should probably hold off for a couple of weeks if I were you.
 
Upvote 0 Downvote
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990


2x 980s are a fair bit better. Have a look at these benchmarks: http://www.anandtech.com/bench/product/1445?vs=1447

SLI scaling still is a problem, though not as much as it used to be. Sometimes you have to wait for driver updates to get decent scaling and there are still very occasional games that never get properly working... though they seem to be few and far between now.

What resolution are you gaming at? Because that makes a difference too.
 
Upvote 0 Downvote
Pokemonking81

Pokemonking81

Reputable
Apr 19, 2015
106
0
4,690


Thanks for the info I think ill wait
 
Upvote 0 Downvote
Pokemonking81

Pokemonking81

Reputable
Apr 19, 2015
106
0
4,690


triple 1440p
 
Upvote 0 Downvote
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990

Wow okay, that's a lot of pixels.

Maybe the 980ti will be the perfect card for you because rumours put it with 6GB VRAM. That's usually overkill, but 3x1440p is likely a case where VRAM matters... a lot.

FYI also, there's a good special on "gaming GT" version of that motherboard you have. I think it's pretty much the same board, but it has a PLX bridge which makes 3 way SLI possible... it's not on your current board. I think it's even cheaper at the moment (because of the special) than the board you picked out right now: http://pcpartpicker.com/part/gigabyte-motherboard-gaz97xgaminggt

Usually 3 way SLI is more trouble than it's worth, but perhaps in your case it might be something worth bearing in mind down the track? Just because 3x1440p is such a beastly goal for gaming.
 
Upvote 0 Downvote
Pokemonking81

Pokemonking81

Reputable
Apr 19, 2015
106
0
4,690


triple 1440 is a bit of a bear. Ima switch back to 1080 would 2 gtx 970's handle triple on ultra
 
Upvote 0 Downvote
R

rhysiam

Splendid
Mar 24, 2013
4,366
29
26,990

2x970s will have a decent crack at 3x1080p for games that support it. You won't get 60fps on ultra in all games, but I don't think you'll have to make too many sacrifices. That's exactly 3/4s the pixels of a 4K screen, so that'll give you a decent point to estimate your performance if you have a look at 4K 970SLI benchmarks, which shouldn't be too hard to find.

Bear in mind that although things are getting better, both multi-screen gaming and multi-GPU gaming are fairly niche areas that sometimes get neglected by developers and drivers... there will be some games where either surround or SLI doesn't work well, or work at all.

The slight advantage you have with 3x1440 screens is that you still have a pretty decent gaming experience on one 1440p screen if surround lets you down, or if the performance hit for three screens is too high. If you're spending as much as you are on a rig, dropping down to a single 1080p screen is a little galling perhaps.

The flip side is that VR is not far away, and perhaps now isn't the time to lay down a huge amount of money on three high end gaming monitors... so perhaps 1080p is a better option after all.

Clearly I'm talking myself in circles here and probably not helping much so I'll finish there. It depends what your priorities are.
 
Upvote 0 Downvote
Pokemonking81

Pokemonking81

Reputable
Apr 19, 2015
106
0
4,690


would 2 gtx 980 do a good job at triple 1080 or wait for the new amd cards to come out
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom