Quick Answer

The cheapest SA build delivering 120fps at 1080p in strategy and simulation games uses a Ryzen 5 5600 (R2,200) with an RX 7600 (R5,800). Civilisation VII, Anno 1800, Total War: Warhammer III, and Crusader Kings III all hit 120fps+ at 1080p High on this hardware combination. Cities: Skylines 2 is the exception — its simulation engine is so CPU-limited that it rarely exceeds 70–90fps even on high-end hardware.

Why Strategy Games Are Cheap to Run at 120fps

Strategy and simulation games render relatively simple 3D scenes compared to AAA action titles — flat maps, distant unit models, and bird's-eye camera perspectives reduce GPU load significantly. The demanding work happens on the CPU: calculating AI moves in Civ VII, simulating 100,000 city residents in Cities: Skylines 2, and processing economic chains in Anno 1800. This CPU-heavy, GPU-light profile means even a budget GPU handles 1080p 120fps in most strategy titles.

A Ryzen 5 5600 (~R2,200) with its strong single-core IPC processes Civ VII's AI turns faster and more consistently than a more powerful GPU would improve fps. For pure strategy gaming, the CPU is the correct hardware investment.

Minimum Cost Build for 1080p 120Hz Strategy and Sim Gaming

  • CPU: Ryzen 5 5600 (~R2,200)
  • GPU: RX 7600 (~R5,800)
  • Motherboard: B450 (~R1,500)
  • RAM: 16GB DDR4-3200 (~R800)
  • Storage: 1TB SATA SSD (~R800)
  • PSU: 550W 80+ Bronze (~R1,000)
  • Case + cooler: (~R1,000)

Total: R13,100 without monitor. Add a 24-inch 1080p 120Hz IPS monitor (R2,000) for ~R15,100 complete.

For lower starting budgets, a Ryzen 5 4600G with integrated graphics (~R2,500 for CPU only) can run Civ VII and Anno 1800 at 1080p Medium 60fps as a temporary measure while saving for a dedicated GPU.

Which Strategy and Sim Titles Benefit Most from Good Hardware

Microsoft Flight Simulator 2024 and Cities: Skylines 2 are the most hardware-intensive titles in the genre. MSFS 2024 uses the GPU heavily for terrain rendering — an RX 7600 runs it at 1080p High at 80–100fps. Cities: Skylines 2 is bottlenecked at the CPU simulation level regardless of GPU tier. All other major strategy and sim titles run at 120fps+ on the minimum recommended build.

FAQ

Why can't I get 120fps in Cities: Skylines 2 even on high-end hardware?

Cities: Skylines 2's city simulation runs primarily on a single CPU thread and cannot be parallelised effectively. Even with the fastest CPUs available, the simulation caps at around 80–90fps in large cities. This is a developer-side optimisation issue, not a hardware deficiency — no upgrade will fully resolve it until developer patches address the simulation thread architecture.

What is the minimum GPU for 120fps in Microsoft Flight Simulator 2024 at 1080p?

MSFS 2024 at 1080p High requires a GPU in the RX 7600 or RTX 4060 class (~R5,800–R7,500) for consistent 90–110fps. Older cards like the GTX 1080 or RX 5700 XT deliver 70–90fps at 1080p Medium. For a locked 120fps in MSFS at 1080p Ultra, step to RTX 4060 Ti or RX 7700 territory.

Does 32GB RAM improve strategy game fps over 16GB?

Not fps directly, but it prevents hitching and micro-freezes in Cities: Skylines 2 and MSFS 2024 that occur when 16GB fills completely and Windows begins paging to the SSD. Strategy games with large map states, many active agents, and streaming terrain benefit from 32GB for consistent framepacing, especially in late-game scenarios.

TIP

gaming on a minimum budget, upgrade RAM to 32GB before buying a faster GPU — Cities: Skylines 2 and MSFS 2024 both show hitching when 16GB fills, and the R700–R900 cost of a RAM kit at Evetech recovers smoother framepacing in ways a GPU upgrade cannot address at the same price.