Quick Answer

For Fallout 4 at 4K, an RTX 4070 Super or RX 7800 XT (around R12,000-R14,000) holds a locked 60 fps maxed, and stepping to an RTX 4070 Ti Super (around R16,000-R18,000) pushes 80-100 fps at 4K Ultra. Fallout 4 is a 2015 engine, so even mid-range modern cards run it well at 4K; the limit is the engine's 60fps physics cap rather than raw GPU power.

What Fallout 4 Needs At 4K

The Creation Engine is CPU-light and GPU-modest by modern standards, so a current mid-range card comfortably maxes 4K. An RTX 4070 Super or RX 7800 XT delivers a stable 60 fps with all sliders up, while an RTX 4070 Ti Super gives headroom for heavy texture and ENB mods. Pair either with a Ryzen 5 7600 or Core i5-13600K and 16-32GB RAM.

The 60fps Physics Cap

Fallout 4 ties physics to frame rate, so running above 60 fps without a workaround causes glitches. Most players lock to 60 fps at 4K, which any of these cards manages easily. If you mod heavily with 4K texture packs, an 12GB-plus card like the 4070 Ti Super avoids VRAM stutter.

Modded Versus Vanilla

Vanilla Fallout 4 at 4K barely troubles a 4070 Super. A heavily modded install with ENB lighting and 4K textures benefits from more VRAM and GPU power, so the 4070 Ti Super is the safer pick for modders chasing a locked, glitch-free 60 fps.

FAQ

What GPU runs Fallout 4 at 4K 60fps?

An RTX 4070 Super or RX 7800 XT (around R12,000-R14,000) locks 60 fps at 4K maxed. Both have ample headroom for vanilla and lightly modded play.

Why lock Fallout 4 to 60fps?

The Creation Engine ties physics to frame rate, so running above 60 fps causes glitches. Locking to 60 fps keeps gameplay stable at 4K.

Do I need more VRAM for mods?

Yes. Heavy 4K texture mods and ENB push VRAM use up, so a 12GB-plus card like the RTX 4070 Ti Super avoids stutter in a modded install.

TIP

4 to 60 fps in the engine settings before adding mods; the physics break above 60 fps regardless of how powerful your GPU is.