Is TX 850 good?

[Eliminator21]

I was gonna buy it because it's a tier 2 psu but I found its discotinued, so should I get another one?

 

[rhysiam]

Johnny Guru reviewed it here: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=218 (assuming you're talking the "V2"??)

It's a very capable, though somewhat older design PSU. But's it's still rock solid. If you can get it at a good price go for it.

 

[Eliminator21]

Johnny Guru reviewed it here: http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=218 (assuming you're talking the "V2"??)

It's a very capable, though somewhat older design PSU. But's it's still rock solid. If you can get it at a good price go for it.

Yep V2
And against a cx 750?

 

[hunter315]

The entire TX line has been discontinued, having been replaced by the GS and RM series, though with the GS not on newegg, and the RM costing the same as an HX, i'd either go for the HX850 or the XFX 850 which is significantly less but on par with the GS and the TX series.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207011

 

[rhysiam]

It's a higher quality unit than the CX series, even new CX series, for sure. CX are Corsair's entry level models, some on these forums advise people not to touch them. I wouldn't go that far myself, but the TX series are definitely higher tier.

 

[rhysiam]

Do you really need 850W btw? Lots of people asking for help here are usually looking at units double the output that they actually need.

 

[Eliminator21]

I can't find RM higher than 650W
I will use an i5 4670k @to 4.2 and 2 R9 270 on xfire
I saw a TX850 for a good price but have to pay for shipping
Also I was thinking about a CX 750 made by CWT

My build is for another build, I postes but nobody answer


Oooo,forgot to say I also found a gs800 but I don't know if iT's better than the tx and will handle 2 R9 270x

 

[rhysiam]

A good 550W unit would run that system just fine, even with overclocking. If you really want to do serious overclocking, get a 650W. But you don't need higher. The 270s have a combined tdp of 300W, then less than a hundred more for the CPU.

Also, have you already bought the graphics cards? Your money would be better spent on a higher tier single card. But if you already have one 270, no worries.

 

[Eliminator21]

A good 550W unit would run that system just fine, even with overclocking. If you really want to do serious overclocking, get a 650W. But you don't need higher. The 270s have a combined tdp of 300W, then less than a hundred more for the CPU.

Also, have you already bought the graphics cards? Your money would be better spent on a higher tier single card. But if you already have one 270, no worries.

I'd probably get a R9 280x but I am unsure if I should go with 2 R9 270
My older thread explains everything
www.tomshardware.com/answers/id-2139305/build-build.html

The r9 270 is my brothers card so I thought I could buy a good psu and a r9 270 and give them as soon as I upgrade so he would get 2 r9 270 and I could get a better card in the future

 

[rhysiam]

If you're sticking with Corsair:
- This is about as cheap as you'd want to go, $80 after MIR (CX600M): http://www.newegg.com/Product/Product.aspx?Item=N82E16817139048
- If you're prepared to spend a little extra this a great deal on a very high end PSU, $100 after MIR (HX650): http://www.newegg.com/Product/Product.aspx?Item=N82E16817139012

There are almost certainly cheaper but still capable options on non-corsair units at the moment, but I gotta get some work done now.

If you're happy to spend more though, I don't think you'll do much better at the high end than the deal on that HX650.

Good luck.

 

[Pondering]

Get XFX 850 since you are overclocking. The optimal load is around 50% of the PSU's rated capacity. The HX 650's load with your components is almost outside of the optimal range (40% to 60%) while not considering the overclock or other components at 384 Watts or 59% HX's 'rated' capacity of 650 Watts.

 

[hunter315]

That optimal load of 50% is BS. Been there, covered that, check the links in my sig.

As for the PSU size, a 270 has a TDP of 150W, so you are at 300W of GPU load + 150W for the CPU with that OC, add in another 50W for the rest of the components and you are at 500W without OCing the graphics cards. If you intend to OC the GPUs i'd suggest stepping it up to a 750W PSU just to give yourself a bit more headroom since a 10% OC on those GPUs will likely put you around 350-400W of GPU loads which will put you at ~600W or about 90% of the PSU's capacity. I usually try to aim a bit closer to 80% to allow for PSU aging and to avoid maxing it out and overly stressing things.

For more dual card setups 750W is usually a good capacity, for some of the lower power ones you can do a 650W but it can be tight with OCing, 850W is only really needed if you want to run 2 280X or something of that level.

 

[Eliminator21]

That optimal load of 50% is BS. Been there, covered that, check the links in my sig.

As for the PSU size, a 270 has a TDP of 150W, so you are at 300W of GPU load + 150W for the CPU with that OC, add in another 50W for the rest of the components and you are at 500W without OCing the graphics cards. If you intend to OC the GPUs i'd suggest stepping it up to a 750W PSU just to give yourself a bit more headroom since a 10% OC on those GPUs will likely put you around 350-400W of GPU loads which will put you at ~600W or about 90% of the PSU's capacity. I usually try to aim a bit closer to 80% to allow for PSU aging and to avoid maxing it out and overly stressing things.

For more dual card setups 750W is usually a good capacity, for some of the lower power ones you can do a 650W but it can be tight with OCing, 850W is only really needed if you want to run 2 280X or something of that level.

:/ the thing is that I'm debating between R9 270 and R9 280x. First I don't know If i'll be using that much power, the Sapphire comes with Bf4 and I play it on PS4 so watching a difference is always cool, but other than that I will only play tittles outside the PS4 such as Titanfall and PVZ garden warfare, so if I get the R9 270 I can give it to my brother and get another one, or I could go with R9 280x an xfire it later. I just can not decide

 

[Pondering]

Guess a 80 Plus Gold or 80 Plus Titanium would deliver 90% efficiency *shrugs*

http://en.wikipedia.org/wiki/80_Plus#Efficiency_level_certifications

60% load is for longevity. The $5 price difference has nothing do with the efficiency difference between gold and silver isn't as important as staying around 50% to 60% load since you are overclocking.

Look over the reviews of the 270x and 280x to see which framerates you can live with.

 

[rhysiam]

I see it a little differently to Pondering. What I think you're not considering is that the power hungry components (CPU & GPU) will basically never approach their full power draw under any kind of "normal" usage scenario. So while you're advocating running PSUs at 60% load, you're using the maximum theoretical load of the system to get to the 60%. Any 'real' use like gaming or video encoding will likely have the computer drawing something around 1/3rd to 2/3rds of it's maximum load. In which case you're looking at 20-40% PSU load, which isn't ideal.

As long as a PSU is good quality and can deliver the maximum theoretical load of the system with a little to spare, you're on good ground in my humble opinion. Sure, when I run Furmark and Intel Burn test simultaneously I might be pushing 85-90% load on the PSU. But when I game or encode video, I'll be sitting somewhere around the sweet spot 50% load, maybe 60-65% load at most. I'm just fine with that on a good quality PSU. In fact, with a set budget, I'd much rather get a higher tier PSU with less headroom than a lower quality, higher wattage PSU. That way you get better efficiency (operating around the 50% sweet spot under gaming/encoding use), AND all the advantages of lower ripple, better warranty, etc, on the higher quality unit.

I do, however, completely agree with your advice to OP... have a look at reviews and decide where your sweet spot is.

The only thing I would say... I wouldn't recommend starting out with crossfiring midrange cards. CFX doesn't always scale well and you're often having to wait for driver releases or fixes. It's a decent upgrade option when you find a single card can't cut it any more, but it's not the best start point.

One more point... if you decide on an 280X and want the option of CFX down the road, then you will need an 850W PSU... in which case my ramblings above become a little moot!

 

[Eliminator21]

Yeah I think everything reduces to my vcd choice
R9 270 on xfire- 550W PSU
R9 280X on xfire- 850W
I just have one last question I found a very cheap TX650 is it worth it for 1 280x or dual 270? In that case I'd give it to my brother (he has a cm ex2 625) so he could OC and xfire his 270, I think I won't xfire the 280x because it's expensive and I'm only playing on 1 1080P monitor

And I completely agree with your point about full loaf