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Gigabyte X3 670 SLI

Snodge

Snodge

Snodge

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14 Apr 2012
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Hi I currently have a Gigabyte 670 X3 2GB It's currently running at 1215/3596.

Which is the absolute limit for the GPU I was wondering whether my TX650 power supply would be able to supply enough power for a second one.

I would maybe go 1150 core clock on each of them and perhaps 3300 on the memory side.

What are you thoughts on whether my PSU would do the job. I also have one 500GB HDD, 128GB SSD, I5 3570K @4.4 Just incase that makes a large difference :)
 
Each 670 OC can use 300W full out, so it wouldn't be enough if you run them both overclocked. At stock it'd only just be enough.
 
Just to let you know my system which was a overclocked i7 2700k with custome water and several hard drives and the Gigabyte WF 670 and I got 330w from the mains at full load.

The Card was on stock clocks though.

Techpowerup got max 330w from 2 cards in SLI - Again these were stock.
 
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Running two wf 670's here, on my previous i7 3770k at 4.5ghz, (stock speed gpu's), in games my wall power monitor was showing a draw of 430w for the system including the monitor.
 
So RJC you've confirmed for me I should be able to run two 670's with quite a large overclock without running into issues? :D
 
Tbh, (resolution dependent of course). But if at 1080p you wont even need the cards overclocked.
 
Yeah thanks RJC and Setter. I'm using 1080p I currently don't have any issues running a game on max however I'm wanting to get a 120HZ monitor with another 670 for BF4 so I can turn V sync off to ensure I hopefully never dip below 60 :)
 
Being able to run and pushing your PSU are two different things.

Can't understand people spending a load of money on a PC,
then trying to run it on the bare minimum PSU.:confused:

2 x 670 has a potential of drawing upto 600w, add the CPU 100w = 700w (not counting the rest of your system)

As someone told me - your PSU is the heart of your system
 
The 670 at stock will each use around 200W, which would just about be enough.

Overclocked the cards will use up to 600W in total when both flat out (plus another 100W+ for the system), meaning you'd need 750W minimum. People saying 430W max for two 670s is nonsense.

edit: ^ almost said the exact same :)
 
whyscotty said:
Being able to run and pushing your PSU are two different things.

Can't understand people spending a load of money on a PC,
then trying to run it on the bare minimum PSU.:confused:

2 x 670 has a potential of drawing upto 600w, add the CPU 100w = 700w (not counting the rest of your system)

As someone told me - your PSU is the heart of your system
Click to expand...


There's no way 2 gtx 670's would ever use 600w. From personal experience overclocking the 670 to its max only ads approx 25w onto its stock usage of 150w.

Get a power meter, you'll be really surprised how low power consumption actually is :)


People saying 430W max for two 670s is nonsense.
Click to expand...

It's not nonsense, my single gtx 670 system with a 2500k never exceeded 230w (total system usage with cpu + gpu 100% loaded) 430w system total with 2 670's + monitor seems about right.
 
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My measurements were with stock cards and the cpu at 4.5ghz. Previously i was running an i7 920 @4.2ghz with gtx 470's at 750mhz core. Theese were notoriously power hungry cards, total draw for that setup was 630w in game, 744w running furmark on extreme burn. Spec in sig is currently showing an idle draw of 156.9 w. Consists off.

4770k (currently at 4.5ghz)
x2 wf 670's at stock
8gb of ram
blu ray drive
1 ssd
1 hdd
9 case fans.
 
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