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PC REQUIREMENTS & BUYING ADVICE

Fallout 4: PC requirements & hardware guide

Separate an unmodified game from a visual mod pack.

Separate an unmodified game from a visual mod pack. Use the source notes and the tests below to research the PC you need.

Published requirements and known gaps

The boxes show the requirements recorded in our source-linked catalogue. Missing fields remain unspecified; a broad hardware family or an API description is not an exact model recommendation.

Minimum

CPUCore i5-2300 / Phenom II X4 945
GPUGTX 550 Ti 2GB / Radeon HD 7870 2GB
RAM8 GB

Recommended

CPUCore i7-4790 / FX-9590
GPUGTX 780 3GB / R9 290X 4GB
RAM8 GB
Important context: Publisher Windows minimum/recommended requirements;

Build estimate not assessed. This page helps you research requirements and hardware. A game-specific Build Finder recommendation is not available yet; published minimums alone do not establish an FPS prediction.

Separate an unmodified game from a visual mod pack

Record the current version, save location and complete mod list. Compare the same route before and after a single change.

Compare the version and rendering mode

Choose a repeatable save and route at your intended resolution. Record native rendering, upscaling, ray tracing and generated frames wherever those options apply. A 1080p result does not establish the same performance at 1440p or 4K.

A repeatable comparison

  1. Record the exact game version, CPU, GPU, memory configuration and settings.
  2. Use the same save, scene or activity where practical; note anything that cannot be held constant.
  3. Change one setting or rendering resolution, then compare sustained performance and pauses separately.
  4. Check temperatures, memory pressure and background work before attributing a problem to one part.

Storage and setup

The catalogue space guide is 30 GB. Treat it as an installation-planning reference, not a total PC drive size or a measured current download. Small installations may be rounded up in the catalogue. Check the publisher notes and launcher for exact content, updates and additional space.

Check the game’s current operating-system and platform requirements directly. Historical game specifications may name Windows versions that are no longer supported by the distribution client. A specification for one edition, branch or platform does not certify another.

Before paying for a PC or upgrade

Base-game requirements cannot certify every mod collection. Check graphics-memory use, storage and save compatibility before changing components or content.

Ask for the full processor and graphics-card models, RAM stick configuration, available installation-drive space and power-supply model. Price any motherboard, memory, cooling or power changes needed for an upgrade. Similar product-family names and equal VRAM capacities do not establish equal performance.

Use our requirements and benchmark checklist to assess evidence, and our first gaming PC guide to budget for the complete setup. No hands-on benchmark results or guaranteed FPS figures are claimed.

Source and review information

Official Steam store (publisher PC requirements) ↗ · catalogue requirements reviewed 24 October 2026. Requirements may change after updates. Buying and diagnostic suggestions are SpecVora editorial guidance, separate from publisher specifications.