I’m repurposing a Dell 7500 workstation we had around and not being used much, to make a rendering rig (mostly GPU).
Currently this has 12 physical cores Xeons/48GB ram:
This is good for CPU rendering (KeyShot/Modo). But I want fast GPU rendering too (Octane). And this is where I need help. The PC currently has an older Quadro 5000, this PC is about 6 years old or so. The box is a large tower and it have 7 PCI slots (one being used w/ existing Quadro:
I want to add 2 (or more?) fast GPUs, and I heard GeForce GTX 1080s are the best rendering value. Is this still the case?
Can I put 2? 3? At what point rendering speed (for Octane) stops scaling well?
Also what about heat? Noise? Should I consider water cooling? Is there a good plug-and-play option for it? Or do I have to be a plumber?
Power consumption is anotehr consideration. The current power supply is 1100 watts. Do we need to upgrade that?
I see that EVGA, Asus, PNY, MSI, Giga-Byte, Zotac all made various models. So I have no idea what to get.
I’d appreciate any feedback to get going from Brooke who have built multi-GPU systems.