Okay, good info, here we go. When you specify architectural rendering is the work structural in nature or is it just cosmetic? If it is structural then reliability will be a big issue as you will have liability if it is wrong. You will want to go with a workstation GPU, especially if you are going to be using GPU rendering. And yes, CPU images will be better but the GPU will render faster.
http://blog.boxx.com/2014/10/02/gpu-rendering-vs-cpu-rendering-a-method-to-compare-render-times-with-empirical-benchmarks/
For CPU 3dsMax is mostly about single core speeds
https://www.pugetsystems.com/recommended/Recommended-Systems-for-Autodesk-3ds-Max-159/Hardware-Recommendations
while Blender seems to scale with more cores
https://www.blender.org/download/requirements/
VRay RT depends on the version. If you have version 3.6 then you can do hybrid rendering and the CPU matters.
https://www.pugetsystems.com/labs/articles/V-Ray-RT-3-6-Hybrid-Mode-Combining-CPU-and-GPUs-for-Rendering-1051/
Version 3.5 and earlier and the CPU doesn't need to be much
https://www.pugetsystems.com/recommended/Recommended-Systems-for-V-Ray-199/Hardware-Recommendations
So two questions that need to be answered are will you be doing structural work and what version of V-Ray will you be using? I will assume no structural and V-Ray RT 3.6.
Went with the Ryzen 1600X for its higher core count and faster base speed. Considered an i5-8400 but the mobos are so expensive and hard to find in that part of the world. The 1600X might render faster anyways. If you need to reduce the price then substitute the plain 1600 and use the supplied cooler, it is quite good actually. Fast SSD for programs/OS and 2TB HDD for file storage. You might want to consider bumping to a 4TB HDD for a little more. I would have liked to use a GTX 1070 but just too expensive so went with the GTX 1060-6GB. NVidia seems to be better supported than AMD. Good case for cooling and good PSU with gold certification (uses less power).
We might need to revamp the build based on your response the questions above. Parts were sourced from Amazon India, ITDepot and MD computers, links to the components are in the build or below the build.
PCPartPicker part list:
https://in.pcpartpicker.com/list/PhDmVY
Price breakdown by merchant: https://in.pcpartpicker.com/list/PhDmVY/by_merchant/
CPU: AMD - Ryzen 5 1600X 3.6GHz 6-Core Processor (₹18825.00)
CPU Cooler: be quiet! - Pure Rock Slim 35.1 CFM CPU Cooler (₹5605.00 @ Amazon India)
Motherboard: Gigabyte - GA-AB350-GAMING 3 ATX AM4 Motherboard (₹9059.90 @ Amazon India)
Storage: Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive (₹6999.00 @ Amazon India)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive (₹5299.00 @ Amazon India)
Video Card: Asus - GeForce GTX 1060 6GB 6GB Strix OC Video Card (₹24900.00)
Case: Corsair - 100R ATX Mid Tower Case (₹2944.00 @ Amazon India)
Other: ANTEC EA550G PRO (₹5805.00)
Other: ADATA - XPG Z1 8GB (1 x 8GB) DDR4-2800 Memory (₹5880.00)
Other: ADATA - XPG Z1 8GB (1 x 8GB) DDR4-2800 Memory (₹5880.00)
Total: ₹91196.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-31 04:58 IST+0530
https://www.theitdepot.com/details-AMD+Ryzen+5+1600X+3.6+GHz+Processor_C30P28444.html
https://www.mdcomputers.in/ddr4-memory/adata-xpg-z1-8gb-ddr4-dram-2800mhz-ax4u280038g17-srz.html
https://www.mdcomputers.in/gtx-10-series-1021724175/asus-strix-gtx1060-dc26g.html
https://www.mdcomputers.in/smps/antec-550-watt-80-plus-gold-semi-modular-ea550g-pro.html