pc configuration for octane

[octanetry]

Hello everyone ...
Hello everyone ... I'd like to change pc (not sure, maybe) and I would like some advice.
I would like to know which motherboard and video cards use with octane end which processor between amd and intel.
now use AMd and I feel good but he's already 4 years old.
the problem is that I do not want to spend too much .. I was thinking of a good comuter but a bit cheaper ..
now use a single 460 and I always have to render in direct light end often when the gpu cook my scene I can not use the computer for other things.

thanks

[FrankPooleFloating]

Here - this is a tweaked version of a list I tossed up on another thread (prices US$ on AMZN):

NZXT Technologies Switch 810 Matte Black Full Tower Chassis with USB 3.0 - NZXT Technologies -- $153.35
Corsair Professional Series AX 1200 Watt ATX/EPS Modular 80 PLUS Gold (AX1200)- Corsair -- $264.99
ASUS SABERTOOTH 990FX R2.0 AM3+ AMD 990FX SATA 6Gb/s USB 3.0 ATX AMD Motherboard - Asus -- $189.00
AMD FX-8350 FX-Series Eight-Core Processor Edition, Black AM3 FD8350FRHKBOX - AMD -- $179.99
Corsair Vengeance 8GB (2x4GB) DDR3 1866 MHZ (PC3 15000) - x2 = $142
Case Fans - Corsair Air Series AF120 Quiet Edition = $15 each (approx)
Radiator Fans - Corsair Air Series SP120 Quiet Edition = $15 each (approx)
Corsair Hydro Series H80 High Performance Liquid CPU Cooler (CWCH80)- Corsair -- $134.68

You can get used GTX580's on eBay for around $150-$250 for 1.5GB or $300-$450 for 3GB. If you are truly
on a budget, go this route. Above MB will take 3 double-slot GPU's. And do not skimp on PSU... get 1200W
and never be sorry.

[octanetry]

thank you for your reply but I did not understand what to do with gpu
2 gpu are enough?
what are the best gpu looking also the price? GTX580?

[octanetry]

sorry but I could dedicate my gtx 460 to the calculation of the scene and use a 580 to render?
I say the right things or bull....t?

[rappet]

sorry but I could dedicate my gtx 460 to the calculation of the scene and use a 580 to render?
I say the right things or bull....t?

The GPU's can all be activated to render. I.e. The 460 and 580 is faster rendering.
2x 580 is twice as fast rendering as 1x580... You can see results in the thread about Octane Benchmark.
Loading the scene (voxelization) is done by the cpu.
When the scene is bigger then then the GPU ram you vannot render the scene with that GPU.
For instance: you have 3GPU's: 2 x1,5 and 1x 3 gB
If the scene loaded is 2gB you can render with only one GPU (3gB).
If your scene is 1 GB you can render with all 3 GPU.
If you add a 4th card like the titan 6gb to this config you can render a scene up to 6 gB,
But a scene over 3 gb can be rendered only with the Titan.
I hope this makes sense to you.
Greetz,

[gueoct]

Basically you are right.
but you don´t need a card for display only; you can use it for rendering as well.
especially when using PMC, using the card for display + rendering is no problem. (you can switch quickly, anyway)



Get yourself 2 used GTX 580/3GB on ebay (max $300 each), they are still faster than 680´s... and 3GB are far enough for most things



.

[octanetry]

maybe I understand ....
. could start changing mobo and adding a 580 to dedicate to octane and leaving the old 460 free for other work.
In the future I might add another gtx 580 to work together with the first and leave the 460 always free for other applications ..
is that right??
because if I use a 460 and a 580 together I will have problems loading the scene! the 460 would create a cork
right?

[FrankPooleFloating]

Yes bro. That is the beauty of being able to enable or disable GPU's in Octane...
if you need to work in Photoshop, play a game of Solitaire.. just disable your 460.
If you do not need to work (or play) enable all.. provided scene can fit in VRAM
of all cards.

Edit: I just read your post again.. No, using both 460 and 580 will not necessarily
create a cork, as you put it.. If a scene fits in both cards, it will use the combined
cores to render.. using a 460 will not slow down the 580, but render what it can
to make your render go faster.. even adding a paltry 260 (while they are still supported)
would add to render speed...

Some blokes here may not totally agree with my choices (and no, I do not work
for Corsair), because some guys love Seasonic PSU's or maybe Noctua fans etc...
and some would insist on a MB that has four PCI-E's available for 4 GPU's... but
few would disagree that my list is pretty sound - and very much a great bang for
your buck. Unfortunately, the pickins are a little slim on 4-GPU ready AMD MB's.

[octanetry]

sure,I'm not a English language teacher
now I use a xfx but i think is like seasonic
ok Frank but what do you think about liquid cooling of the CPU?is a good choice for a computer thet work many hours?

[FrankPooleFloating]

You should be fine with Corsair H60-H80.. or Antec Kuhler 620.

You can also use closed loop coolers on GPU's too:

http://www.overclock.net/t/1203528/offi ... ka-the-mod

I plan to write up a new thread about this when I get a chance.. and give some tips based on my experience...
but I am not going to do that on this thread. Read through above link if you are interested.