Personal computing discussed
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cynan wrote:I would tend to think that in most cases, dual PSUs in the place of a single efficient high current unit would produce more heat and be less efficient if anything. But the bottom line is that it will probably cost you at least $100 more for the case and the PSUs by going the dual root, and I can't really see how you're benefiting. I have a Seasonic-based gold-rated 1050W PSU in my gaming PC and that thing is as silent as I could want. I'm sure the many of the 1200-1300W equivalents are just as silent. The other thing you may get by going with a single high-end PSU is more features (ie, such as with the Corsair version linked above that comes with monitoring software, etc).
And if you don't use ridiculous image quality settings I think you'd get by exceptionally well in 99% of games coming out over the next couple of years with dual Titans or even GTX 780s at 4k (although the extra memory on the Titans vs the 780s may help in certain cases)
michael_d wrote:cynan wrote:I would tend to think that in most cases, dual PSUs in the place of a single efficient high current unit would produce more heat and be less efficient if anything. But the bottom line is that it will probably cost you at least $100 more for the case and the PSUs by going the dual root, and I can't really see how you're benefiting. I have a Seasonic-based gold-rated 1050W PSU in my gaming PC and that thing is as silent as I could want. I'm sure the many of the 1200-1300W equivalents are just as silent. The other thing you may get by going with a single high-end PSU is more features (ie, such as with the Corsair version linked above that comes with monitoring software, etc).
And if you don't use ridiculous image quality settings I think you'd get by exceptionally well in 99% of games coming out over the next couple of years with dual Titans or even GTX 780s at 4k (although the extra memory on the Titans vs the 780s may help in certain cases)
I do use ridiculous image quality settings that's why I bought Titan. I was referring to high quality platinum rated 700/800 Watt Seasonic/Corsair PSUs. My idea is to have each of the 2 PSU run at about 40% or less of their total capacity rather than single PSU run at 60% or more.
juzz86 wrote:Also. As a fellow 30-inch panel owner with a Titan, how are you finding it? I went with a 690, just interested in hearing some of your framerates and settings, as I'm a huge sucker for AA and PostFX too
juzz86 wrote:michael_d wrote:cynan wrote:I would tend to think that in most cases, dual PSUs in the place of a single efficient high current unit would produce more heat and be less efficient if anything. But the bottom line is that it will probably cost you at least $100 more for the case and the PSUs by going the dual root, and I can't really see how you're benefiting. I have a Seasonic-based gold-rated 1050W PSU in my gaming PC and that thing is as silent as I could want. I'm sure the many of the 1200-1300W equivalents are just as silent. The other thing you may get by going with a single high-end PSU is more features (ie, such as with the Corsair version linked above that comes with monitoring software, etc).
And if you don't use ridiculous image quality settings I think you'd get by exceptionally well in 99% of games coming out over the next couple of years with dual Titans or even GTX 780s at 4k (although the extra memory on the Titans vs the 780s may help in certain cases)
I do use ridiculous image quality settings that's why I bought Titan. I was referring to high quality platinum rated 700/800 Watt Seasonic/Corsair PSUs. My idea is to have each of the 2 PSU run at about 40% or less of their total capacity rather than single PSU run at 60% or more.
Well, you could probably get away with downsizing the non-GPU PSU a bit. Just looking back through old reviews, seems about 150-200W is a fair figure for required system power minus GPU power. That means you'll want a 300-400W PSU for maximum efficiency there.
I have seen nothing about Maxwell, but I'd think a good guess for a beefy, Titan-esque single-GPU on a newly-refined, lower lithography architecture would be about the 300W mark, perhaps even 250W like Titan, just cramming more efficiency into the same envelope. That'd mean a 500-600W PSU for double, and 750-900W PSU for triple SLI.
Looking at these, it seems that dual PSUs - although cool - would indeed be a bit of a waste. If we go with 150W for SYS and 500W for GPU, that's right at the max. efficiency of a 1200 or 1300W unit. Having a PSU underloaded doesn't improve efficiency, unfortunately Save the cash and put it towards a PCI-E SSD instead
Also. As a fellow 30-inch panel owner with a Titan, how are you finding it? I went with a 690, just interested in hearing some of your framerates and settings, as I'm a huge sucker for AA and PostFX too
Airmantharp wrote:juzz86 wrote:Also. As a fellow 30-inch panel owner with a Titan, how are you finding it? I went with a 690, just interested in hearing some of your framerates and settings, as I'm a huge sucker for AA and PostFX too
My GTX670's still aren't fast enough for my 30" . They'll certainly hold me over until I get around to using 4k on the desktop though!
michael_d wrote:I always go with E-series CPUs which is at least 130W, plus other components including PCI-E sound card, I think that 300-400W PSU is not enough to stay below 40% usage. I would say at least 550W but if price difference is negligible why not 700W. The amount of money you can save by purchasing lower wattage PSU is not going to be enough for PCI-E SSD those things are darn expensive. Besides PCI-E SSD have not been out long enough to determine their real world lifespan and stability of firmware. However, by the time I am ready for my next upgrade hopefully they will come around.
Here is a little article on Maxwell.
It has been just over 3 weeks since I upgraded from Sapphire HD7970 to ASUS GTX Titan and it is like day and night at 2560x1600 with AA because game play is so much smoother. Titan delivers twice the performance of HD7970 when AA is enabled. So far I played STALKER CoP with high resolution textures mod, Metro 2033 and Last Light, Rage and Crysis. I do not have exact frame rates but Titan performs really well in all games with all in-game settings set to maximum. Crysis at 8AA no problem, Rage with custom config at 8AA no problem, Metro 2033 MSAA x4 no problem. The only problem is to run Metro Last Light at SSAA x4 it is playable but feels a little choppy, hopefully newer drivers will increase performance.
I would like to try Crysis 3 but it is still not cheap enough for my liking. I have never been a big fan of any of the "Cry" games I only buy them at bargain prices. Benchmarks indicate that Crysis 3 is less demanding than Metro Last Light so I do not expect any issues.
juzz86 wrote:AMT - your 670s should be giving you very close to what I'm getting - sucker for AA too mate? Haha
DeadOfKnight wrote:Actually, I dunno if he's got 4GB 670s, but if so he should be getting even better than you with everything cranked up at 2560x1600.
If shopping for video cards right now to run at that resolution, I'd say 2x 770 4GB is the sweet spot for eye candy (pun not intended).
Granted, a 780 is going to be better for games that don't scale well with SLI, but that doesn't seem to be as big an issue nowadays.
Airmantharp wrote:I came from a pair of HD6950's with 2GB each- and even a single GTX670 was far smoother. The AMD setup posted the frames, sure, but they were meaningless.
Airmantharp wrote:Thanks, you know I've been here too long. And funnily enough, I traded my GTX570SC straight for the first HD6950 (1.25GB of RAM just doesn't cut it at 1600p). The GTX570 was a nicer card for sure.
Airmantharp wrote:Thanks, you know I've been here too long. And funnily enough, I traded my GTX570SC straight for the first HD6950 (1.25GB of RAM just doesn't cut it at 1600p). The GTX570 was a nicer card for sure.
michael_d wrote:Thanks for all replies.
I am aware that 1200W PSU is enough for Tri-SLi. I just think that 2 separate PSUs 700/800 Watts will be quieter and cooler. Judging by the results from Anandtech I believe when Titan 2 based on Maxwell comes out dual SLi should be enough for 3820x2160.
klepp0906 wrote:Titan was a one off and didn't do well enough for them to incorporate them as the replacement flagship.
klepp0906 wrote:michael_d wrote:Thanks for all replies.
I am aware that 1200W PSU is enough for Tri-SLi. I just think that 2 separate PSUs 700/800 Watts will be quieter and cooler. Judging by the results from Anandtech I believe when Titan 2 based on Maxwell comes out dual SLi should be enough for 3820x2160.
Unfortunately their won't be a titan 2. Titan was a one off and didn't do well enough for them to incorporate them as the replacement flagship.
However to add to the thread, I'd consider going with dual 1k psus. The price you can get them at these days is awesome and too much is > not enough. Psus run best at half load anyhow.
To those who are still adamant about a 1200 being enough for tri titan ... Consider this. I am running dual 1500w psus in my quad titan rig and the one on my system hits about 600 while gaming and my titan psu hits about 1200 while gaming. That's with only the cards on it. If I hook my rig up it will just shut down. While benchmarking I can shut it down anyhow so please err on the side of caution especially if you intend to overclock. I'm not even under water yet on the cards and I peak at 2600w from the wall while benching. The evga G2s are sick good. Gold, 10yr warranty, 150 bucks. Amazing value.