Setting up Fallout 4 graphics for a weak PC, solving technical problems

Setting up Fallout 4 graphics for a weak PC, solving technical problems


 How to increase FPS in cities, improve texture quality, make the game more stable and other optimization tips


Even in 2021, Fallout 4 is still played - since its release, it has never dropped out of the Steam Top 100 statistics . During this time, fans have done more for the game than the developers. There have been many unofficial fixes that fix all Fallout 4 technical issues much better than the official patches. And even the graphics can be noticeably tightened up without harming performance using mods.


In this guide, we will first deal with the system requirements of the game, then fix the main technical problems and finally tune the graphics so that the picture is not affected and the FPS grows.


What PC do you need for Fallout 4 (system requirements)


What PC do you need for Fallout 4 (system requirements)


We have studied independent tests of the game on different hardware and came to the conclusion that the official information is close to the truth, but only if we focus on stable 30 FPS. Below are some recommendations for playing at 60 FPS with a high preset of settings at different resolutions.


Official minimum system requirements (1080p @ 30 FPS, low preset):

  • Operating system: Windows 7/8/10 (64-bit only!).
  • Processor: Intel Core i5-2300 / AMD Phenom II X4 945.
  • Video card: NVIDIA GeForce GTX 550 Ti / AMD Radeon HD 7870.
  • RAM: 8 gigabytes.

Official Recommended System Requirements (1080p @ 30 FPS, High Preset):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-4790 / AMD FX 9590.
  • Video card: NVIDIA GeForce GTX 780 / AMD Radeon R9 290X.
  • RAM: 8 gigabytes.



Computer for gaming at 1080p @ 60 FPS, high. preset (according to tests):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-6700 / AMD Ryzen 5 1400.
  • Video card: NVIDIA GeForce GTX 1070 / AMD Radeon RX 590.
  • RAM: 8 gigabytes.

Computer for gaming at 1440p @ 30 FPS, high. preset (according to tests):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-6700 / AMD Ryzen 5 1400.
  • Video card: NVIDIA GeForce GTX 1070 / AMD Radeon RX 590.
  • RAM: 16 gigabytes.

Computer for gaming at 1440p @ 60 FPS, high. preset (according to tests):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-7700K / AMD Ryzen 7 2700X.
  • Video card: NVIDIA GeForce GTX 1080 / AMD Radeon RX 5600 XT.
  • RAM: 16 gigabytes.

Computer for gaming at 2160p @ 30 FPS, high. preset (according to tests):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-7700K / AMD Ryzen 7 2700X.
  • Video card: NVIDIA GeForce RTX 2060 / AMD Radeon RX 5600 XT.
  • RAM: 16 gigabytes.

Computer for gaming at 2160p @ 60 FPS, high. preset (according to tests):

  • Operating system: Windows 7/8/10 x64.
  • Processor: Intel Core i7-7700K / AMD Ryzen 7 2700X.
  • Video card: NVIDIA GeForce RTX 2070 / AMD Radeon RX 5700 XT.
  • RAM: 16 gigabytes.

Solving the main technical problems of Fallout 4

As mentioned above, even the latest updates did not fix many of the critical flaws of the game: in cities, FPS is still severely sagging, animations and physics go crazy after disabling vertical sync, and the official HD texture pack eats up all video memory and RAM without a noticeable improvement in quality :




We still recommend that you update Fallout 4 to the latest version, but a number of fan-made fixes must be put on top:

  1. Unofficial Fallout 4 Patch . In five years, the unofficial patch has gone into the thousands for a long time. And the creators still continue to release new versions, "until every single bug is fixed." An unofficial patch is recommended for many mods to work.
  2. F4SE . Fallout 4 script expander, which is required for most mods to work correctly. After installation, the game must be launched via f4se_loader.exe (the file can be renamed).
  3. High FPS Physics Fix . Dynamically adjusts the speed of animations and physical effects to the number of FPS. Especially useful for powerful PCs or when playing on monitors of 144 Hz or more. It also lets you turn off vertical sync, which greatly improves mouse responsiveness.
  4. Fo4FI_FPS_fix . Fallout 4 developers broke precombinations in 30 world cells with the release of DLC, which led to freezes and a drop in FPS in Boston and some other locations. One of the fans did not wait for the fixes, so he independently generated all 4500 cells of the game world. Performance will now be much smoother across the map.
  5. High Resolution Texture Pack 2K and 4K . Another fan of the game under the nickname Valius created his own version of the high-resolution textures. Unlike the infamous official package, the effect is clearly visible even at 1080p, and the memory is required much less.

How to properly configure graphics in Fallout 4




The game has quality presets - from "Low" to "Ultra". However, it is not worth reducing all parameters at once, since not all of them significantly affect performance. Therefore, further we will analyze each graphical option separately.

Note. Where applicable, the maximum percentage degradation in current performance is shown in parentheses.


  • "Smoothing" (up to 5%). TAA works well and quickly on modern video cards (2014 and newer), and for completely outdated ones, FXAA is the best choice. True, the latter slightly blurs the texture. No one should turn it off completely, otherwise "teeth" will appear at the edges of objects.
  • "Anisotropic filtering". Even older video cards do a good job with the maximum quality of anisotropic filtering - set it to 16x. This will restore the original clarity to surfaces at an angle to the player's character. Without filtering, textures in this perspective look blurry due to rendering peculiarities.
  • Texture Detail (up to 3GB VRAM at 1080p). Formally, the game consumes up to 3 gigabytes of video memory with ultra-textures. But if you lower some of the remaining parameters, then a 2 gigabyte video card will be enough.



  • Shadow Detailing (up to 20%). At medium quality, shadows sometimes look even better than at maximum. Therefore, many should lower it in order to win 5-10 FPS without much harm to the picture.
  • "Shadow rendering distance" (up to 10%). Downgrade to medium quality in order to slightly offload the processor and memory.
  • "Detailing additional textures" (processor-dependent). This parameter is responsible for the number of decals - traces of shots and explosions on the walls and floor. During hostilities, performance on a weak processor can significantly drop - lower it to medium or lower.
  • Lighting Detail (up to 5%). Responsible for additional lighting effects like subsurface scattering or sky light. On video cards older than 2014, it can significantly reduce FPS, and on modern cards, the effect on performance is very small. Therefore, it is better to set the maximum quality.
  • Sun rays detailing (up to 40%). The main way to get a noticeable increase in FPS in the game without a noticeable decrease in graphics quality. The value of "Ultra" from "Low" differs only in the clarity of the rays, beautifully passing through the holes, but at "Low" it will be 10-20 FPS more!
  • "Depth of field" (up to 5%). Cinematic effect that blurs the background during dialogue or cutscenes. The bokeh effect looks noticeably better without dramatically affecting performance. However, high-tech post-processing is poorly calculated by outdated video cards, so on some GTX 760 it is better to lower the quality to the standard depth effect.
  • "Volumetric light" (up to 15%). It's actually Ambient Occlusion, which is responsible for the diffuse shading. This effect darkens areas at joints or grooves, which adds realism to the image. Unfortunately, only NVIDIA's HBAO + looks good in the game, and the standard SSAO works too weak. Therefore, enable HBAO + whenever possible.
  • Reflections (up to 5%). Reflective surfaces are rare in the game - mostly just puddles and bodies of water. But even near water reflections have little effect on performance, so it's best to turn them on.
  • "Moisture" (up to 5%). Almost free effect of wet surfaces in the rain for most not very modern video cards - turn it on.
  • "Volumetric rain". An easy-to-calculate effect that removes rain under the roof by the processor - turn it on.
  • Motion Blur. Blurring the edges of the screen when moving the camera quickly. If you like the effect, then turn it on - it does not affect performance.
  • "Glare". The lens effect, which also does not reduce FPS at all and looks beautiful. We see no reason to turn it off.
  • "Object rendering distance" (processor-dependent). Determines the maximum distance at which houses, ruins, trees, car remains and other large objects will be displayed. The main load from high range goes to the processor, so it is better to lower it to medium or lower in order to equalize the FPS rate.
  • "Character rendering range" (processor-dependent). An analogue of the previous parameter, which is responsible for the number of people visible in the distance. The recommendations are also similar.
  • Grass rendering range (processor-dependent). Vegetation can also load the processor quite a bit. Recommendations are similar to the previous two parameters.
  • "Object rendering range" (processor-dependent). Items mean everything that a player can pick up: weapons, ammo, armor, drugs, food, and much more. Recommendations are similar to other parameters for rendering distance.
  • "The degree of detail of remote objects" (up to 5%). Responsible for the number of polygons on remote objects. However, the only noticeable performance impact is 4K. Therefore, most players can exhibit average or even maximum quality here.
  • "Detail rendering range" (up to 5%). Similar to the previous parameter.

Optimal settings for a weak PC (GTX 550 Ti / HD 7870 + i3 / AMD FX):

  • Anti-aliasing: FXAA.
  • Anisotropic filtering: 16.
  • Detail of textures: medium.
  • Shadow Detail: Low.
  • Shadow rendering distance: low.
  • Detail of additional textures: low.
  • Lighting Detail: Low.
  • Detail of sun rays: low.
  • Depth of field: standard.
  • Volumetric light: SSAO.
  • Reflections: Disable.
  • Humidity: turn on.
  • Volumetric rain: turn on.
  • Motion blur: to your liking.
  • Glare: to your taste.
  • Object rendering distance: 25%.
  • Rendering range of characters: 25%.
  • Grass rendering distance: 25%.
  • Rendering range of objects: 25%.
  • Detail of distant objects: low.
  • Detail rendering range: low.

Optimal settings for a mid-range PC (GTX 1070 / RX 590 + i5 / Ryzen 5):

  • Anti-aliasing: TAA.
  • Anisotropic filtering: 16.
  • Detailing textures: ultra.
  • Shadow Detail: Medium.
  • Shadow rendering distance: high.
  • Detail of additional textures: high.
  • Lighting Detail: High.
  • Sun Rays Detail: Medium.
  • Depth of field: bokeh.
  • Volumetric light: HBAO +.
  • Reflections: enable.
  • Humidity: turn on.
  • Volumetric rain: turn on.
  • Motion blur: to your liking.
  • Glare: to your taste.
  • Object rendering distance: 50%.
  • Rendering range of characters: 50%.
  • Grass rendering distance: 50%.
  • Rendering range of objects: 50%.
  • Distant Object Granularity : Ultra.
  • Detail rendering range: ultra.

Optimal Settings for Pre-Top PC (RTX 2080 / RX 5700 XT + i7 / Ryzen 7):

  • Anti-aliasing: TAA.
  • Anisotropic filtering: 16.
  • Detailing textures: ultra.
  • Shadow Detail: Ultra.
  • Shadow rendering distance: ultra.
  • Detailing additional textures: ultra.
  • Lighting Detail: Ultra.
  • Sun rays detail: high.
  • Depth of field: bokeh.
  • Volumetric light: HBAO +.
  • Reflections: enable.
  • Humidity: turn on.
  • Volumetric rain: turn on.
  • Motion blur: to your liking.
  • Glare: to your taste.
  • Object rendering distance: 75%.
  • Character render range: 75%.
  • Grass rendering distance: 75%.
  • Object render range: 75%.
  • Distant Object Granularity : Ultra.
  • Detail rendering range: ultra.

Fallout 4 looks mediocre at low settings, but it's hard to tell the difference between medium-high and high settings (especially at 1080p). Therefore, even owners of powerful PCs do not make sense to twist everything to the maximum.

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