Quick Answer
A Fallout New Vegas-ready PC under R80,000 is an RTX 4090 with a Ryzen 7 7800X3D, 32GB DDR5 and a 2TB NVMe. New Vegas runs at hundreds of fps, so this is flagship 4K hardware for every modern title, with the old game and its heaviest mods running effortlessly.
New Vegas will never tax this build
An RTX 4090 24GB runs the 2010 New Vegas at hundreds of frames per second even at 4K, so the game is the least demanding thing this R80,000 build does. The Ryzen 7 7800X3D is the right choice for New Vegas's CPU-bound engine under heavy mods. This tier is built for flagship 4K gaming across all titles, with New Vegas as a trivial bonus.
The most extreme mod lists, with room to spare
Even the heaviest New Vegas overhaul -- full 4K texture packs, the most demanding ENB and large gameplay mods -- runs at hundreds of fps on this hardware. The 4090's 24GB VRAM and the 2TB NVMe handle the enormous mod folder with ease. For New Vegas alone you would never need this, but the build runs it modded to its absolute limit without effort.
Built for modern 4K, cooling and display
Beyond New Vegas, the 4090 maxes every current AAA title at 4K and will for years. A 360mm AIO keeps it and the X3D cool and quiet. Pair the build with a 32-inch 4K 144Hz monitor (around R10,000+) so the hardware is used on the games that actually need it. For New Vegas only, a far cheaper build suffices.
FAQ
Does Fallout New Vegas need an R80,000 PC?
No, not remotely. It runs at hundreds of fps on a budget build. This tier is flagship 4K hardware for modern games, with New Vegas and its heaviest mods running effortlessly.
What is the RTX 4090 for beyond New Vegas?
4K gaming in every demanding modern title -- RDR2, Cyberpunk path tracing and future AAA games -- with the 24GB VRAM keeping it top-tier for several years.
Why pair the 7800X3D with this build?
New Vegas's engine is CPU-bound, and the X3D's cache keeps it as fast as possible. The same CPU also delivers the best gaming frame rates in modern titles at high resolution.
Pro Tip
An R80,000 build for New Vegas alone makes no sense -- it runs on far less. Choose this only for flagship 4K gaming across modern titles, paired with a 4K 144Hz monitor.