How do Xeon processors and multi GPU systems perform with Unreal?

Development Platform & Builds
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1

I am posting my current machine specs to check if it would be ideal for Unreal 4. I am hoping the Windows 8.1 + Xeon processors + multi GPU concoction doesn’t have a downside to productivity.

Can this config be sped up more for Unreal 4? More GPUs with SLI? Diminishing returns? Currently the machine is SLI disabled for rendering purposes.

Looking for high-fidelity realistic output at 60 FPS or more.

	Operating System
		Windows 8.1 Pro with Media Center 64-bit
	CPU
		Intel Xeon E5 2680 V2 @ 2.80GHz	23 °C
		Ivy Bridge-EP/EX 22nm Technology
		Intel Xeon E5 2680 V2 @ 2.80GHz	25 °C
		Ivy Bridge-EP/EX 22nm Technology
	RAM
		64.0GB Dual-Channel DDR3 @ 936MHz (13-13-13-32)
	Motherboard
		ASUSTeK COMPUTER INC. Z9PE-D8 WS (Socket-R 2011)	41 °C
	Graphics
		Acer B296CL (2560x1080@60Hz)
		Cintiq 13HD (1920x1080@60Hz)
		Acer B296CL (2560x1080@60Hz)
		2047MB NVIDIA GeForce GTX TITAN Black (ASUStek Computer Inc)	42 °C
		2047MB NVIDIA GeForce GTX TITAN Black (ASUStek Computer Inc)	34 °C
		ForceWare version: 344.75
		SLI Disabled
	Storage
		447GB INTEL SSDSC2BP480G4 (SSD)	31 °C
		931GB MB1000CBZQE (SATA)	30 °C
		931GB MB1000CBZQE (SATA)	33 °C
	Optical Drives
		HL-DT-ST BD-RE WH16NS40
	Audio
		Realtek High Definition Audio
2

UE4 doesnt support SLI so you only need a single GPU. Check out this section of the forum to see how the engine performs on a variety of systems.

3

Thanks Jacky! That is precisely the kind of thread I was looking for.

4

I do see some multi GPU setups in that thread. The secondary GPU gets ignored I am guessing?

5

Yeah. You can have multi GPU’s in your system but only one of them will be used.