... 370W, from my APC UPS's realtime power usage display, and I am running both my processor & GPU at full load, and I'm using a Corsair 850W PSU, if I add a 2nd GTX Titan, will I be ok for my PSU's rating?  It has a 70A single 12v rail I think I read, FWIW.

 

What I don't understand is how the '850W' rating on my PSU relates to the APC UPS's displayed power usage.  Is one A/C, the other D/C, for example?   Anyway, I really don't want to have to swap out this PSU as it's great and only 7mo old.  I think I'm fine w/ a 2nd Titan but I think in part it may depend on whether we are talking A/C versus D/C or not.

 

What do you know...for sure?

 

Many thanks in advance,

 

Noel

 

In case you haven't paid attention, P3DV2.1-2 is becoming really amazing these days and clearly has life in it despite no 64-bit version.  So, investing in another Titan may be in the cards for me, not quite sure yet.  In any case, rethink if you're building 'for FSX' in your upcoming build.   The gap is widening between the two, w/ P3DV2.x now clearly superior, sans the lack of PMDG support, yet.  It will come because the core engine gets better by the month practically, and gets more and more compelling (for users & devs to support) as time goes on.

Noel , the 370w seems ok for your system .

The titan with no OC run att powertarget 100% draw approx 250w full load, to get à titan draw more than 300w you must have more than 1.3v on gpu core.

Maximum à have get on à single gpu system is close to 800w that with Extreme cooling.

CPU 4960x @5.7ghz vcore 1.82v mem 1.95v , titan gpu core 1.48v @1540mhz

Shall be no problem to run 2x titan and à SB-E light OC with 850w.

I'm curious about your choice over the 780ti (pretty much the best card for most games at the moment)?

 

Was it a VRAM thing? Titan having double the amount?

 

I find myself in a similar predicament. Whereas for FSX a powerful GPU overall was recommended, the new p3d and XP10 seem to want video memory. My 1.28 GB on the gtx570 hardly seems like enough especially for XP.

 

My plan was to go gtx770 4gb - perhaps two of those is cheaper than one Titan?

For me i buy the Titan on first realease No 780 or 780TI that time.

replaced the 680 4gb that is similar to the 770 4gb same GK104.

the diff to a 780 3gb is less than 100 bucks today and you get the GK110 and you have 70-85% of what you get from 2x 770.

I you ask me , buy a 780 then when its confirmed SLI support buy one more 780 the price tag 200 bucks for 70-80% stronger gpu setup.

Noel , the 370w seems ok for your system .

The titan with no OC run att powertarget 100% draw approx 250w full load, to get à titan draw more than 300w you must have more than 1.3v on gpu core.

Maximum à have get on à single gpu system is close to 800w that with Extreme cooling.

CPU 4960x @5.7ghz vcore 1.82v mem 1.95v , titan gpu core 1.48v @1540mhz

Shall be no problem to run 2x titan and à SB-E light OC with 850w.

Sounds good thanks!

I'm curious about your choice over the 780ti (pretty much the best card for most games at the moment)?

 

Was it a VRAM thing? Titan having double the amount?

 

I find myself in a similar predicament. Whereas for FSX a powerful GPU overall was recommended, the new p3d and XP10 seem to want video memory. My 1.28 GB on the gtx570 hardly seems like enough especially for XP.

 

My plan was to go gtx770 4gb - perhaps two of those is cheaper than one Titan?

Yes it in part was a VRAM thing, and as you probably know SLI doesn't get you access to the 2nd card's VRAM.  FTIW, I do see all 6Gb being using in P3DV2.x on occasion, but truthfully I'm now sure how that matters, if at all.  I know for view changes there is zero delay-it's instant.  I decided to build for ANY simulator when I did this upgrade last year around June or so even though just using FSX and thought it would be best to do the strongest possible parts for anything and it has proven to be a good move for me.  I don't upgrade often and I likely won't for this build either w/ the exception that as time goes on I will be less protective of my SB-E chip, add some more volts and when she blows install IB-E which won't add much but it seems to more desktops just don't improve at the rate then once did, especially w/o flux less solder, except on hexacore E chips.  The 3930K runs nicely now at 4.549Ghz at 1.33v.