PSU tier list 2.0

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Should I PM you my PayPal info or you want to send me a money order? No modern GPU that requires more than a 450w power supply? Really? You forget the rest of the computer?

gkill 4 x2 ddr 3 ram
fx 8350
msi 970 gaming
gtx 560 ti
2 sata hard drive

how is a 400 w its says 650w. i dont understand much about it sorry
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500-550 watts will leave you plenty of room for future upgrades. Your system as is will be fine with a good 450w unit. That doesn't change my criticism above.
 


Taking into consideration the Polaris and Pascal lineup, not really. I'm not saying you can't use a power supply with a rated wattage above 450W, but nothing will require it, and that includes the variety of CPU choices. I may exclude the FX 9590 from that, but you can even ask InvalidError, he says the same thing also. So do the folks on Jonnyguru. A GTX 1080, for instance, is 180W. Then take your typical I7-6700K which is 70W when gaming (Souyrce). Okay that's 255W. Then the rest of the system should bring that number to about 280W when gaming. Full load should be more like 300W. With overclocking, things can be brought up to 400W full load with a good CPU and GPU overclock. That's still well below 450W.

I do not forget the rest of the computer, but since all our latest GPUs (except the 250W Titan X) are below 200W for aftermarket models, and with how efficient CPUs are (especially Intel's), a 450W PSU is perfect for most gamers.
 
No. A 450w isn't perfect. Sorry. What you are missing is efficiency, temps, noise, performance. A modern build might run on a 450w just fine, but you are looking at a psu that under a full load is running @90% psu loading, gaming loads will be closer to 70%. And that's just a new skylake. Right now, my 3770k is pushing @180w, my 970 regularly sees 99%, so that's what, 220w with its OC and add @50w for the rest of the system. That's full load 450w. Now make that an OC fx 8350 and you are closer to 500w. Will a 450w run a new skylake, sure, but it doesn't run everybody, not even close. A 550w covers everyone and anyone regardless of cpu, gpu, OC and still puts efficiency closer to 50-70%, which is the sweet spot for everything from performance to noise to heat.
 
My biggest complaint STILL about the 450w psus is they are almost never cheaper than the good 520-550w models. Sorry but I'm never going to pay MORE for a 450w model just because it CAN run the build.

You'll never find me insisting a person spend a lot of extra money to get a 550w unit though if there happens to be a good 450w model for considerably cheaper that day.


I was expecting the lower watt psu market to be flooded by newer offerings by now. I'm ready for some awesome 200, 250, 300 and 350w models to be available for CHEAPER than the 450-550w models.
 
Well to take Jonnyguru's own words an 450x would have cost exactly $1 less than the RM550x.

Now when I talk about this I'm talking about modern hardware. And without crazy over clocking. A 450W PSU would be fine with two reference FE GTX 1080s. Those are each 150W. An Intel CPU, say an I5-6600K, is about 52W when gaming. Making gaming load somewhere around 375W for an I5-6600K and two FE GTX 1080s. But once you overclock or go aftermarket things change.
 
2x 1080's is a 4k build, not a 1080p or even a 1440p, and will stretch the limits of what an i5-6500 can do.

Still trying to figure out why the insistence on getting the lowest watt possible psu and pushing its limits, not much of a cushion if any. All you end up doing is adding stress to the psu, heat output, fan noise and lowering efficiency. It's simply not worth it. Absolutely no reason to shortchange the psu just because in limited applications you can. Might as well say you'll add a 180w hyper212 to a 4790k simply because you'll only OC it to 170w. On paper it works, technically it's under the limit, just, but you forgot all about ambient temps. You honestly gonna tell all those folks in India that a 450w is good for their pc, even at pushing 90% loads and its increased heat output? You'll be seeing psu temps upwards of 40°C consistently. The whole idea behind the recommendations is they cover every scenario. Any OC, any temp, any abuse, cheap psu's, psu availability by region. A psu only uses what it needs, so a 1300w psu is just as good as a 450w unit, enough for your pencil pushing skylake build. In an air conditioned environment and minimal OC on the psu, no OC on the gpu above stock, Yada Yada Yada. Limited.
 
Let me just quote Sr. Julio again.


Whoops, I thought it said GTX 970 before, thise MSI 970 gaming boards I always think of as GPUs. Well his system here should be around like 310W-325W when gaming with his older GPU. That is not 90% still. The only thing I was trying to disprove, and did disprove, was his statement that:


He does not need a 550W or 600W PSU. I was basically trying to dispel his misconceptions that:

1) His Tacens Mars PSU was an actual 650W unit
2) His hardware is super power hungry, which it is not

He can get a 650W PSU if he wants, but he does not need to. But in ther case where his system would be a GTX 970 instead of a 560Ti, that would put his gaming load around more like 275W in which a 450W PSU would be perfectly fine, about 60% load, good efficiency, all good. But his GPU is not modern.
 
I've always found to recommend a psu, build for what can be, not what is, because everything in a system varies, you get differences in psus etc. To my way of thinking, that's an FX 8 core, that's 125w. gtx560ti is 2x 6-pin, so 225w. 50w for system, 100w for oc. That's a total of 500w. So for me, a quality 500w minimum (there aren't any) so quality 520/550w is what I'd recommend. This covers everything from temps to efficiency, OC of any kind, usages, etc.
Its an FX, count on OC, if it was Intel locked or i3, mebe a quality 450w. So in my eyes, OP does in fact need a 520/550w psu.
 


i am Sure the xfx ts 450w is enough for him.
 


But you don't calculate GPU power by the number of PCIe cables; you go by what reviews show its power consumption to be. And same with the FX 8350, you don't go by TDP, you go by what gaming load would be; games that only use 4 cores, it should be a lot less.

What should happen is the people buying the PSU should always specify if they overclock and how much; not something that should be guessed.
 


He does not need a 550W or 600W PSU. I was basically trying to dispel his misconceptions that:

1) His Tacens Mars PSU was an actual 650W unit
2) His hardware is super power hungry, which it is not

He can get a 650W PSU if he wants, but he does not need to. But in ther case where his system would be a GTX 970 instead of a 560Ti, that would put his gaming load around more like 275W in which a 450W PSU would be perfectly fine, about 60% load, good efficiency, all good. But his GPU is not modern.[/quotemsg]

dude im sorry i was just telling u what the store guy told me, but im going to upgrade my gpu to a 1060 or 480 in january,, so in my head that doesent understand a lot about it, buying less w is bad, thatt was my logic.

but after reading a lot ur point mnakes a lot more sense now.

i plan on overclocking my fx in the future but at the moment i dont want to spend less than 60 euros in the psu.

so if im not being annyoing, could u tell me a good psu that can handle overclocking and a 1060/480 in the future, and my gtx 560 ti at the moment whit no problem, <3 <3 <3

http://www.alientech.pt/index.php?cPath=180_14
 
 
No, turkey, I don't research every single gpu, trying to get exact power measurements, just so I can skimp and brag that its possible to get away with using a lower power psu. I'd much rather look at any gpu and tell by its connectors that its possible to need a certain wattage, so that's what it gets. Just the same its really impossible to determine the exact wattage of any particular system. You can make rough guesses, make certain decisions about 100w for OC etc . So you stick to your benchmarks, because everyones system uses the same wattage as the testers, therefore you are right, no one ever needs more because a reviewer had a build and said so.

And you are dreaming if you think anyone cant change their mind about oc. So they don't oc today, what happens in a week or a year from now when they've forgotten all your salient facts and decide it time to oc, but they cheaped out with your recommended 450w psu....

Build for Possible, not probable or current, too many things can change too easily, especially with OC.
 
sr Julio. On a scale of 1-10, 2 of those units would rate a 1, 3 would rate a 2 and just the Corsair VS would rate a 3. Yes, they are all that bad. If I had no option but to buy one of those 6, I'd invest in a Sony Playstation instead.
 
No. Again. A 6pin uses 2x 12v,2x ground and a sensor. An 8pin/6+2 uses 3x 12v, 3x ground and 2x sensors. The guage might be the same, but so is the wattage capable, as set by the number of grounds. The 3rd 12v wire in a 6pin is a dud. Not used unless the +2 ground is added and recognised by the +2 sensor wire on the gpu.
So a 6pin is 75w, an 8pin/6+2 is 150w. 18guage at that length is capable of @60w per wire, about 5A @12v, so a 75w load run parallel would see about 37w per line, well within tolerance. With 150w run over 3 lines, that's only 50w per wire, still within tolerance.
 
Upon further reading of that Jonnyguru page the sense wire was the whole idea but no manufacturers have ever implemented it. The entire 8-pin PCIe cable is the most idiotic cable in a PC. Let me find the other forum thread on that.

Oh here is my quote from Jonny.
The extra two wires are supposed to be +12V sense and ground.

The actual connector can't really support double the power of a six pin PCIe.

The idea is that the higher load the graphics card would require would cause the voltage to drop and this could be harmful to the graphics card. The sense wire is supposed to communicate to the PSU that there's a drop and the PSU is supposed to compensate.

Problem is: It's very difficult/expensive to implement multiple +12V sense wires within the same PSU. So the 8-pin is simply not implemented the way the PCI-SIG consortium intended. Problem is, if you leave the pin open, the graphics card complains that you're not using a connector capable of enough power. So the "trick" is to ground the +12V sense so the card thinks it's plugged in.

I can't think of any power supplies that actually utilize the +12V sense on the 8-pin PCIe the way the PCI-SIG intended.
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Turkey, read what that says.
The PCI Express specification says this pin must be left unconnected. However, the EPS12V specification says this pin must be used for +12 V (yellow wire).
For a 6 pin pcie, that wire is not used. It's only used as a 12v in the 8pin/6+2 mode. You find many cheap psus that only carry 2x 6pin that have only 5 wires per connector, quite often brown not yellow, not the 6wire with the 3rd 12v if there is no 6+2 option as stated for EPS which is an 8pin configuration.
 
Still off. Two 12V wires versus three would not double the allowed current. If 6-pin really was 75W (which is an artificially low limit) that would make 8-pin about 110W since 75+0.5×75

Here is a funny quote from an Antec representative who was on the board at all these things when the 8-pin cable was being developed.
So, Jon, as a summary, the 8p PEG with 3+5 combo is bullshit inside out and we all made a ton of money from it 😀
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It's actually a really cool read. The entire history of this cable http://www.jonnyguru.com/forums/showthread.php?t=13418&page=2
 
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