XR stage, virtual studio, system

We are planning a virtual studio (XR stage) with led walls and Unreal engine ,ndisplay solution,
We would like to render realtime the full UN4 project with ray tracing. (4x4K resoultion)
I put together a Dell workstation:
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		Dual Intel Xeon Gold 6246R 3.4GHz, (4.1GHz Turbo, 16C, 10.4GT/s 2UPI, 35.75MBCache,HT(205W)DDR4-2933
		Operating System
		Windows® 10 Pro for Workstation (4 Cores Plus) Multi - English, French, Spanish
		Chassis Options
		Precision 7920 Rack Chassis CL
		Graphics Card
		NVIDIA Quadro RTX6000, 24GB, 4DP, VirtualLink (7920R)
		192GB 12x16GB DDR4 2933MHz RDIMM ECC Memory
		Storage Drive Configurations
		C1 SATA HDD/SSD Drives (2 Integrated Intel SATA Controllers)
		Storage Drive Controllers
		2x Integrated Intel 4 port SATA controllers (8 ports @ 6.0Gbps) SW RAID 0,1,5,10 (on 4 ports only)
		Hard Drive
		2.5" 512GB SATA Class 20 Solid State Drive
		2nd Storage Drive
		No Drive Selected
		3rd Storage Drive
		3.5" 8TB 7200rpm SATA Hard Drive AG-Enterprise Class
		Dell Ultra-Speed Drive Configuration
		C1Z Dell Ultra-Speed Drive Duo Boot, 1-2 PCIe NVMe Solid State Drives
		Network Cards
		Intel X550 Quad Port Network Daughter Card (2x10GbE, 2x1Gbit)
		Power Cords
		US 220V Power Cord
		Front Bezel
		Dell Precision Optimizer with AI
		Power Supply
		Single, Hot-plug Power Supply (1+0), 1600W
		Embedded Systems Management
		iDRAC9, Express
		Dell Ultra-Speed Drives (PCIe SSDs)
		Dell Ultra-Speed Drive Duo PCIe SSD x8 Card, 2 M.2 1TB PCIe NVMe Class 40 Solid State Drive
		TPM Security
		Trusted Platform Module 2.0
		5 Years ProSupport with Next Business Day Onsite Service
		Security Software
		McAfee® Small Business Security 36 month Subscription
		Non-Microsoft Application Software
		Windows 10

My question is, this machine enough for the realtime render or not?
Maybe the better solution more “node” or just bigger graphic card (rtx8000, GV100)

The camera input card is Blackmagicdesign Decklink 8K pro
In case if we use one graphic card, we have to buy a nvidia quadro sync card?

Thank you the answers.