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Will my PSU handle the GTX 760, and a GTS450 as the physx card?

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July 3, 2013 3:53:17 PM

Well, so i've got a XFX CORE 550W PSU, and a GTS450 as the GPU, but i want to upgrade to a 760, and i would love to use the gts as my physx card, so... would it be cappable of running it?
My whole system:
XFX Core 550W
7200 RPM HDD
DVD DRIVE
2X4 GB KINGSTON HYPERX RAM
Two 120mm fans, and on 140mm
MSI Z87-G43 motherboard
i5 4670k no overclock

I looked at the thermaltake psu calculator, and it shows that i only need around 470W, but i doubt it is possible.

Also, another question is: my mobo (z87-g43) only supports crossfire, no sli, but will it be possible to use the gts450 as the physx card? not in SLI?

Thanks for any answers.
Related resources
a c 115 ) Power supply
July 3, 2013 4:10:09 PM

Ah ok, different link, same calculator. It's known to be pretty accurate (dependent of course on the person entering the data).
a b ) Power supply
a c 388 Î Nvidia
July 3, 2013 4:56:22 PM

A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.
July 3, 2013 6:22:57 PM

17seconds said:
A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.


The only game i play often is ARMA 3, and it does support physx, so it would be nice to have an adittional card just for it.

Also, are You sure it is 550W? On the official nVidia it says that i just need 500W and i heard that they always put even higher numbers that are actually required just to be safe.

a c 1879 ) Power supply
a b Î Nvidia
July 3, 2013 6:39:20 PM

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PC Power and Cooling Silencer Mk II 750W High Performance 80PLUS Silver SLI CrossFire Intel Haswell Ready Power Supply

Don't try to push the 550w with those 2 cards that XFX made by Seasonic isn't Haswell certified.Get this ^


Haswell Compatible

XFX Pro Series Core Edition Full Wired PSUs
PRO650W 80 Plus Bronze Yes P1-650S-NLB9
PRO750W 80 Plus Bronze Yes P1-750S-NLB9
PRO850W 80 Plus Bronze Yes P1-850S-NLB9
XFX Pro Series XXX Edition Semi-Modular PSUs
PRO650W 80 Plus Bronze Yes P1-650X-XXB9
PRO750W 80 Plus Bronze Yes P1-750X-XXB9
PRO750W 80 Plus Silver Yes P1-750B-NLG9
PRO850W 80 Plus Bronze Yes P1-850X-XXB9
PRO850W 80 Plus Silver Yes P1-850B-NLG9
XFX Pro Series Black Edition Full Modular PSUs
PRO750W 80 Plus Gold Yes P1-750B-BEFX
PRO850W 80 Plus Gold Yes P1-850B-BEFX
PRO1050W 80 Plus Gold Yes P1-1050-BEFX
PRO1250W 80 Plus Gold Yes P1-1250-BEFX
XFX Pro Series Black Edition Limited Full Modular PSUs
PRO1000W 80 Plus Platinum Yes P1-1000-BELX
a c 1879 ) Power supply
a b Î Nvidia
July 3, 2013 6:43:44 PM

Don't forget to choose a Best Solution when opening a question thread , the forum members will appreciate that

Thanks for posting!
a b ) Power supply
a c 388 Î Nvidia
July 3, 2013 8:16:15 PM

xkenq said:
17seconds said:
A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.


The only game i play often is ARMA 3, and it does support physx, so it would be nice to have an adittional card just for it.

Also, are You sure it is 550W? On the official nVidia it says that i just need 500W and i heard that they always put even higher numbers that are actually required just to be safe.

Dilemma solved. ARMA 3 does indeed use PhysX, but not GPU-accelerated PhysX. The PhysX on ARMA 3 is done exclusively on the CPU, so a dedicated PhysX card will have no benefits whatsoever. In fact, all it will do is add more heat, noise, and power consumption. Unless you play some other GPU-accelerated PhysX games, I do not recommend you install a dedicated PhysX card.

Here is a list of GPU-accelerated PhysX games (you can also filter the list to show CPU PhysX games):
http://www.physxinfo.com/


Just to finish up the PSU issue. You never want to skimp and try to cut it close. That is why Guru3d tends to overestimate their minimum PSU recommendations. All the same, even if the GTX 760 requires a minimum 500 watt PSU, you still need to factor in the GTS 450 at full power. So really, the minimums you should be considering are those for an SLI setup. Again, Guru3d, overestimates that GTS 450's in SLI require a minimum 600 watt PSU; and recommends 700-800 watts for GTX 760's in SLI. Anyway you cut it, 550 watts is good for one card, but is asking a lot to run a pair of video cards
http://www.guru3d.com/articles_pages/geforce_gtx_760_sl...
a b ) Power supply
a c 388 Î Nvidia
July 3, 2013 8:17:29 PM

SR-71 Blackbird said:
Don't forget to choose a Best Solution when opening a question thread , the forum members will appreciate that
Thanks for posting!

It's a discussion thread, unless you would like to change it to a question. It probably should have been a question in the first place.
July 4, 2013 3:36:02 AM

17seconds said:
xkenq said:
17seconds said:
A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.


The only game i play often is ARMA 3, and it does support physx, so it would be nice to have an adittional card just for it.

Also, are You sure it is 550W? On the official nVidia it says that i just need 500W and i heard that they always put even higher numbers that are actually required just to be safe.

Dilemma solved. ARMA 3 does indeed use PhysX, but not GPU-accelerated PhysX. The PhysX on ARMA 3 is done exclusively on the CPU, so a dedicated PhysX card will have no benefits whatsoever. In fact, all it will do is add more heat, noise, and power consumption. Unless you play some other GPU-accelerated PhysX games, I do not recommend you install a dedicated PhysX card.

Here is a list of GPU-accelerated PhysX games (you can also filter the list to show CPU PhysX games):
http://www.physxinfo.com/


Just to finish up the PSU issue. You never want to skip and try to cut it close. That is why Guru3d tends to overestimate their minimum PSU recommendations. All the same, even if the GTX 760 requires a minimum 500 watt PSU, you still need to factor in the GTS 450 at full power. So really, the minimums you should be considering are those for an SLI setup. Again, Guru3d, overestimates that GTS 450's in SLI require a minimum 600 watt PSU; and recommends 700-800 watts for GTX 760's in SLI. Anyway you cut it, 550 watts is good for one card, but is asking a lot to run a pair of video cards
http://www.guru3d.com/articles_pages/geforce_gtx_760_sl...


Thanks for the long answer. So, i can't use both cards? ;/
Alright, but now i'm not even sure if i could use the gtx760 alone, what do You think about that?
a b ) Power supply
a c 388 Î Nvidia
July 4, 2013 10:06:32 AM

xkenq said:
17seconds said:
xkenq said:
17seconds said:
A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.


The only game i play often is ARMA 3, and it does support physx, so it would be nice to have an adittional card just for it.

Also, are You sure it is 550W? On the official nVidia it says that i just need 500W and i heard that they always put even higher numbers that are actually required just to be safe.

Dilemma solved. ARMA 3 does indeed use PhysX, but not GPU-accelerated PhysX. The PhysX on ARMA 3 is done exclusively on the CPU, so a dedicated PhysX card will have no benefits whatsoever. In fact, all it will do is add more heat, noise, and power consumption. Unless you play some other GPU-accelerated PhysX games, I do not recommend you install a dedicated PhysX card.

Here is a list of GPU-accelerated PhysX games (you can also filter the list to show CPU PhysX games):
http://www.physxinfo.com/

Thanks for the long answer. So, i can't use both cards? ;/
Alright, but now i'm not even sure if i could use the gtx760 alone, what do You think about that?

Well, since ARMA 3 doesn't use GPU PhysX, and your PSU is a little underpowered, you don't have much choice. It wouldn't make sense to install the GTS 450 at all.

All the same, the GTX 760 is a great card and capable of running PhysX without a dedicated card. I would hang on to the GTS 450, in case you pick up a GPU PhysX game like Metro Last Light, Borderlands 2, or the upcoming Batman Origins or Witcher 3. Then, you can try the 760 alone, and if it's not enough get a good, inexpensive PSU and try the 450 as a dedicated PhysX card.
a b ) Power supply
a c 388 Î Nvidia
July 4, 2013 10:11:18 AM

xkenq said:

Also, another question is: my mobo (z87-g43) only supports crossfire, no sli, but will it be possible to use the gts450 as the physx card? not in SLI?

Your motherboard does not need to be SLI certified to run a dedicated PhysX card. You don't even need a full PCIe x8 or x16 slot, an x4 slot will work as well.
July 4, 2013 10:46:37 AM

17seconds said:
xkenq said:
17seconds said:
xkenq said:
17seconds said:
A single GTX 760 is going to require a minimum 550 watt quality PSU. I assume that adding a second card will be too much for your PSU.
http://www.guru3d.com/articles_pages/geforce_gtx_760_ms...

Make sure you actually play GPU-accelerated PhysX games, before you even try to set up the dedicated PhysX card.


The only game i play often is ARMA 3, and it does support physx, so it would be nice to have an adittional card just for it.

Also, are You sure it is 550W? On the official nVidia it says that i just need 500W and i heard that they always put even higher numbers that are actually required just to be safe.

Dilemma solved. ARMA 3 does indeed use PhysX, but not GPU-accelerated PhysX. The PhysX on ARMA 3 is done exclusively on the CPU, so a dedicated PhysX card will have no benefits whatsoever. In fact, all it will do is add more heat, noise, and power consumption. Unless you play some other GPU-accelerated PhysX games, I do not recommend you install a dedicated PhysX card.

Here is a list of GPU-accelerated PhysX games (you can also filter the list to show CPU PhysX games):
http://www.physxinfo.com/

Thanks for the long answer. So, i can't use both cards? ;/
Alright, but now i'm not even sure if i could use the gtx760 alone, what do You think about that?

Well, since ARMA 3 doesn't use GPU PhysX, and your PSU is a little underpowered, you don't have much choice. It wouldn't make sense to install the GTS 450 at all.

All the same, the GTX 760 is a great card and capable of running PhysX without a dedicated card. I would hang on to the GTS 450, in case you pick up a GPU PhysX game like Metro Last Light, Borderlands 2, or the upcoming Batman Origins or Witcher 3. Then, you can try the 760 alone, and if it's not enough get a good, inexpensive PSU and try the 450 as a dedicated PhysX card.


Thanks again for the answer, but still You didn't answer my question: will my PSU handle the 760 without the gts?
a b ) Power supply
a c 388 Î Nvidia
July 4, 2013 10:50:39 AM

No problem with your PSU and a single video card.
July 4, 2013 11:38:16 AM

Are You 100% sure? I just don't want to buy it and then see it burn :D 
a b ) Power supply
a c 388 Î Nvidia
July 4, 2013 12:29:35 PM

It's 550 watts and Nvidia recommends 500 watts...
I don't think XFX makes totally crap PSU's so you will be fine.
July 4, 2013 1:06:07 PM

As far as i know they are based on Seasonic, so i doubt they are crap :D 
Anyway, thanks for all the help.
!