C3D Hardware: Dell desktop for 2020 & Video Cards

[jsappMTCSW]

Considering some options for a C3D desktop.  Variety of work roles, but lots of sheet work, street corridor design, surface creation.  Xrefing large DWGS, etc. Quickly viewing surface / corridors in 3D is needed to QA/QC designs.  Government so large data sets are worked with on limited occasion (not as critical as other use cases, but point clouds, aerial imagery, CAD/GIS of infrastructure).  

I've seen the system specs for C3D 2020 and done a bit of research on hardware (articles/benchmarks).  Difficult to find objective benchmarks using C3D. My work has done a lot to set up file structure and best practices to optimize performance.  Consensus is clear that Xeons are overpriced/slower (get i7/i9 for high single threaded speed).  32 GB of RAM, NVME SSD.  But some conflicting info on video cards.  Is it worth the extra $1000 or so for worse performance to get a "certified" Quadro vs a GTX?

My works only orders Precision 7920 desktops (so far).  7920 only comes with Xeons.  Another Precision desktop (5840) has i7 available.  All Precisions only allow for Quadros.  It seems we can save quite a bit and get a superior performing machine by going with an XPS desktop vs Precision (specs below).  I have built gaming computers for years, but this is a critical purchase for work and we've had some missteps.  Would really appreciate any thoughts/experience you might have.  Thanks!

Description	Proposed XPS	Proposed Precision 5820	Ordered Precision 7920
Dell Model	XPS Special Addition	5820	7920
CPU	10th Gen Intel® Core™ i7-10700K processor(8-Core, 16M Cache, 3.8GHz to 5.1GHz)	Intel Core i9-10900X (3.7GHz, 4.7GHz Turbo, 10C, 19.25MB Cache, HT, (165W), DDR4-2666 Non-ECC)	Intel Xeon Silver 4110 2.1GHz, 3.0GHz Turbo, 8C, 9.6GT/s 2UPI,11MB Cache, HT (85W) DDR4-2400
GPU	NVIDIA® GeForce® RTX 2070 SUPER™ 8GB GDDR6	Nvidia Quadro RTX4000, 8GB, 3DP, VirtualLink (XX20T)	NVIDIA Quadro P2000, 5GB, 4 DP (7X20T
RAM	32GB, 2x16GB, DDR4, 2933Mhz	32GB 2x16GB DDR4 2666MHz UDIMM Non-ECC Memory	16GB (2x8GB) DDR4 2666MHz RDIMM ECC
SSD	512GB M.2 PCIe NVMe SSD + 2TB 7200RPM Hard Drive	M.2 512GB PCIe NVMe Class 40 SSD	2.5'' 512GB SATA Class 20 SSD
PRICE	$2,109.00	$2,912.67	$2,575.16
Single Thread Rating*	3075	2734	1672
CPU Mark*	19640	23095	10453
G3DMARK*	18123	15151	7281
LINK	XPS	Precision 5820	Precision 7920 (no link)

*SOURCE: cpubenchmark.net & videocardbenchmark.net

[Maksim.Melnikov.BY]

Hello @jsappMTCSW 

I am using Dell Precision 5540 Processor i9-9980HK, 32 GB, NVIDIA Quadro® T2000.
Very satisfied. There are built-in performance optimization tools for Autodesk products.
The choice was towards 15 inches, since you need to be mobile. At the workplace I use it with a 27-inch monitor. I work with Civil 3d models, photogrammetry, laser scanning, Infraworks, Revit.
At the moment, performance is with a margin.
There is nothing to compare with, but I recommend the Precision series.
The only negative for me so far is the wide-angle camera at the bottom of the screen. At all online meetings I look at the interlocutors from above - I think not everyone likes it)))