Fallout New Vegas Enb Performance

[Lupo Hepperly]

I tweaked a bunch of settings to improve performance, and it has improved significantly, but it still seems a little choppy. With this being an older game is this something I should be expecting regardless? Or is there anything I can do to improve performance further?

Welcome! Goal of this guide is to fix the abysmal performance in Fallout New Vegas by using more modern technologies and tweaks, and make you generally aware of its quirks and other potential issues.

Fallout New Vegas Enb Performance

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Even with that fact in mind, there are some tweaks to be done on the GPU and presentation side of things that can help with the overall responsiveness of the game, despite not fixing the performance on its own.

• Presentation models:
Flip Model - presentation model first added in Windows 7 with D3D9Ex and upgraded in DXGI in Windows 8-10.
Allows "fullscreen-level" of performance and latency. Has native VRR support in Windowed Mode. Additionally, DXGI version supports tearing (V-Sync off) in Windowed Mode, HDR and has Multiplane Overlay (MPO) support.
DXGI variant is supported only in D3D10 and upwards[2], enforced only in D3D12, and exists only on Windows 8 and upwards.
D3D9Ex Flip Model is not feature matched and lacks any DXGI improvements.
More information here. BitBlt Model - older presentation model used by most applications. While performing similarly to Flip Model in Fullscreen, in Windowed Mode it has worse performance and always-on V-Sync on top of already additional latency caused by additional copy operations due to being software composed.
The only presentation model for Windowed D3D9 (and lower), but still very common in D3D10 and D3D11 games. Vulkan and OpenGL[3] use BitBlt in Windowed Mode.

Stutter Remover New Vegas Tick Fix is a mod by karut that fixes and improves game's internal clocks and memory management, which dramatically reduces stutter. It also allows for playing above 60fps without breaking physics.
Additionally, it has some DirectX changes, which help with performance and greatly reduce memory usage.

Driver Updates Not much to say here - for the best compatibility and performance, you must be using the newest driver for your graphics card.

You can check what GPU you have by opening Task Manager, and going to the Performance tab - the last GPU on the left pane is your main one.
If you don't see any GPU there, that means your GPU is too old to use DXVK. This step is mandatory if you want to use DXVK!

Make sure your Windows is activated, otherwise the watermark will kick the game into the DWM composition, which leads to increased latency, worse performance and disables VRR.
If you don't have a GPU with MPO (Multiplane Overlay) support, you can mitigate this by disabling Fullscreen Optimizations.
(Keep in mind that this trick won't work on modern, D3D12 games, so it's still recommended to just activate Windows)

How to check if your GPU supports MPOs:

1. Type dxdiag into Windows search
2. Click Save All Information and save the file.
3. Open the DxDiag.txt file, press Ctrl+F and look for MPO MaxPlanes
4. If the number is greater than 1, then your GPU has MPO support.

Virtualization Windows 11 uses virtualization features to increase system and inter-process security. Unfortunately, this can come at a performance cost, especially on lower-end hardware.
I won't be writing on how to disable them, because... Microsoft already made a tutorial about it.

This step is not mandatory, as when it comes to security, it's up to you to decide. Just letting you know that this exists, and even Microsoft acknowledges the fact that it can degrade perfomance.

Presentation Problems Here's a comparison of three display modes you can use in this game. Situation is problematic mainly due to Vulkan and D3D9 using old presentation models. Flip Windowed
(DXVK with DXGI) Fullscreen BitBlt Windowed
(D3D9, Base DXVK)

• Best latency
• Variable Refresh Rate works without any problems
• HDR output
• Fast Alt-Tab
• Native support for color profiles

• Best latency and performance, especially with FSO
• HDR output (Requires DXVK)
• Variable Refresh Rate works without any problems

• Fast Alt-Tab
• Better support for color profiles

• In-Game brightness settings don't work
• Nvidia only
• Worse performance compared to Fullscreen DXVK on Desktops due to being Laptop optimized
• Compatibility issues with overlays, for the same reason as above.
  (Partially fixed by Special K)

• Slower and unstable Alt-Tab, especially without FSO
Alt-Tab doesn't work at all if NVTF's pool change is enabled, unless you use DXVK

Translation Magic DXVK is an open source Direct3D 9-11 to Vulkan translator project lead by Philip Rebohle (doitsujin) and Joshua Ashton. While created mainly for Linux, works unofficially on Windows.
In short, it allows you to run Fallout using the Vulkan API which has much lower draw call overhead than D3D9, which is one of the main performance limiting factors in this game. If you use Linux, most of this is irrelevant, since Proton on Linux obviously uses DXVK already.

Things about DXVK you must acknowledge:

• DXVK improves performance in mainly draw call (CPU) bound scenarios (e.g. draw distance), and usually doesn't help much in GPU bound ones (e.g. resolution)

Intel GPUs from 6th Gen and newer can work provided you have newest drivers installed.
DXVK is broken past the 1.10.1 version.
Don't expect a big performance difference, if any, since the game will still be mostly GPU bound. Arc GPUs should work fine, but are untested.

Click on the cards below to show the instructions for each limiter. Special K Special K is a mod by Kaldaien focused mainly on fixing performance in games and implementing HDR.
Its list of features is too long to write here, but the most important one used here is its incredibly versatile limiter and if using DXGI, HDR and (almost) lagless V-Sync.

Nvidia Exclusive - HDR output If you have a HDR compatible display and use HDR DXVK, you can use Special K to output in native HDR.
Keep in mind that it can decrease your performance a bit due to higher render bit depth.

• Open the HDR menu at the top of Special K's control panel menu and press the HDR Setup button.
• Select the scRGB HDR option from the HDR Calibration widget.
• Restart the game.
• For more information, see Special K Wiki.

So in a nutshell: I get frame drops nearly constantly throughout the game. This makes the game very uncomfortable to play. I have spent a lot of time trying to play the game and trying to mod it but I have never actually played the game all the way through. I follow F&L pretty much down to the letter. With a few exceptions for personal taste. However, I have tried to play the game completely vanilla and I keep having the same bad performance. I have spent about 50 hours trying to play in short bursts but I always end up getting frustrated over the performance issues. So right now I am stuck after you leave Goodsprings because I am about ready to give up on trying. I have spent a lot of time testing some mods and stuff but sitting down to enjoy the game for an hour or more at a time is a nightmare. I used to own the game on my Xbox and even at 30 fps it was much more fun to play than on my computer. I would probably just play it on there if I hadn't have sold it.

Anyways, I noticed that I did indeed have Geforce Experience still installed from when I was using it to do some recording. However, since I did not use it anymore I went ahead and uninstalled it. And you were definitely right on that one. I was startled at just how much of a performance boost I got from uninstalling it! A significant amount of hitching went away. While it is still not perfect, the game went from being barely playable to being a lot more comfortable.

Then, while I was skulking around on some forums wondering if I could perhaps boost my performance anymore, I saw that one guy was having problems with the Full Scene Reflections option turned on. Even near areas without water. So me not wanting to rule anything out, I turned it off. And to my amazement about 90% of the fps problems went away. I never thought to check this option since I didn't think it would affect areas without water.

My game is running at a smooth 50-60 fps with Adaptive V-sync turned on and I only get frame drops in a few areas of the game like the strip. I even managed to get Enhanced Shaders up and running. Overall I am pretty happy with the performance.

EDIT2: I've read that the game engine does not support v3 shaders and that it's not a good idea to try to enable them because it will end up with missing textures: -new-vegas.122096/page-21#post-2071871 Is this true or not?

I have not tested exiting the process vs uninstalling in regards to performance. The hit for me is much smaller than for others, as again its rather hit or miss if it wrecks a game or not, which makes it difficult to convince them to fix.

Having a huge issue with my Fallout New Vegas performance, I'm using A Requiem for the Capital Wasteland mod. Also I implemented NMC's texture mods using the FO3 version to begin with than overwriting those with his new New Vegas version. I've been really noticing a lot of lag specifically by Rivet City. My graphics card is a ATI Radeon HD 5770, an AMD Phenom II 970 processor, 4gb ram, and an ASUS motherboard. I'm also running the Game Booster program with the 4gb enabler and still showing issues....please help me to try and figure this out...thank you in advance to anyone who can help me! ;)

Bethesda will know exactly what we're talking about. The engine that powered The Elder Scrolls IV: Oblivion was substantially upgraded before it resurfaced in Fallout 3, Oblivion 360's paltry 1024x600 resolution upped to native 720p, anti-aliasing doubled from 2x to 4x MSAA, with overall performance improving too.

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