GTX 570 and GTX 670
- Thread starter Dario_92
- Start date
jamesriley94
New member
It isn't really worth it no...
I wouldn't be as dismissive about the PSU though.
You can run 670 SLI with a 650w unit, and that's with both cards at 100% load, and overclocked too.
A doubt a 570 running PhysX would ever run at 100% load with it(?) so it may be alright.
Still, bit of a mute point as it's pointless to do anyway. Be better off selling the 570 and saving up for a 3570k with Z77 motherboard.
Recon-UK
Banned
Well, we all know how power hungry Fermi is... not a bright idea to do that with a 670 on that PSU now is it?
Me personally would never risk it, and i own 480's...
Dario_92
New member
I'm not selling my 570, I am giving that to my wee brother now since I have no use for it and I am saving up for a i5-3570k and Z77 Sabertooth
Should have it all by the end of next month (hopefully)
Scoob
New member
You know, I played around a couple of times pairing a newer NV GPU with an older one, and having the older one just for PhysX. Every time the single new card on it's own did BETTER doing everything, than with the older card dedicated to PhysX. Still, your old 570 is a little more potent that the older cards I was playing with.
A 650w PSU for SLI with an overclock would make me clench a little! A good 650w PSU could pull it off I'm sure, but that's a little close for me, especially if there's a CPU OC too. I run a Corsair HX750w PSU with a 2500k @ 4.6 and 2x GTX570's in SLI @ 732 to 850 mhz. Overclocking the GPU's can give a 100w+ increase in my load - I have one of these power meter plugs incidentally so I can see exactly what my system is pulling and when. While my system runs ok, I have concerns that when both my CPU and GPU's are working hard - games like Crysis 2 and Skyrim often have spikes when this happens - my aging 750w PSU is nearing its limits - well, limits I feel comfortable with. I'm actually looking at possibly replacing my 750w PSU with at least an 850 soon, mainly so I can play around with my overclocks more for fun.
With you being a great brother, and having the the one 670 GPU present, your 650w PSU should be more than fine. I ran my 2500k @ 4.6-4.8 with a single GTX 570 @ 850 initially on my old Corsair 650w PSU just fine - my 570 is more power-hungry than your 670, being older tech. I grabbed myself a 750w PSU - even though my 650 should handle SLI 570's on paper, based on the stats - purely because I didn't have enough PCI-E power connectors on it!
You'd assume, wouldn't you, that if a PSU has a connector, then it should be able to power anything that needs that connector. So, my current PSU has FOUR 6/8 Pin PCI-E power connectors, so can power my GTX 570's (2x 6 pin power each) just fine. However, I'd not want to power two cards that each needed 2x 8 pin power with it! Also, overclocking GPU's REALLY ups the power draw, more than you'd think. Certainly for my older 570's at least.
Scoob.
A 650w PSU for SLI with an overclock would make me clench a little! A good 650w PSU could pull it off I'm sure, but that's a little close for me, especially if there's a CPU OC too. I run a Corsair HX750w PSU with a 2500k @ 4.6 and 2x GTX570's in SLI @ 732 to 850 mhz. Overclocking the GPU's can give a 100w+ increase in my load - I have one of these power meter plugs incidentally so I can see exactly what my system is pulling and when. While my system runs ok, I have concerns that when both my CPU and GPU's are working hard - games like Crysis 2 and Skyrim often have spikes when this happens - my aging 750w PSU is nearing its limits - well, limits I feel comfortable with. I'm actually looking at possibly replacing my 750w PSU with at least an 850 soon, mainly so I can play around with my overclocks more for fun.
With you being a great brother, and having the the one 670 GPU present, your 650w PSU should be more than fine. I ran my 2500k @ 4.6-4.8 with a single GTX 570 @ 850 initially on my old Corsair 650w PSU just fine - my 570 is more power-hungry than your 670, being older tech. I grabbed myself a 750w PSU - even though my 650 should handle SLI 570's on paper, based on the stats - purely because I didn't have enough PCI-E power connectors on it!
You'd assume, wouldn't you, that if a PSU has a connector, then it should be able to power anything that needs that connector. So, my current PSU has FOUR 6/8 Pin PCI-E power connectors, so can power my GTX 570's (2x 6 pin power each) just fine. However, I'd not want to power two cards that each needed 2x 8 pin power with it! Also, overclocking GPU's REALLY ups the power draw, more than you'd think. Certainly for my older 570's at least.
Scoob.
