26 KiB
Nvidia drivers patch for Windows
This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.
Requirements:
- Any of following 64bit operating systems:
- Windows 7
- Windows 8
- Windows 8.1
- Windows 10
- Windows Server 2008 R2
- Windows Server 2012
- Windows Server 2012 R2
- Windows Server 2016
- Windows Server 2019
- NVENC-compatible GPU (https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#Encoder)
- Nvidia driver. Patch available for versions in table below.
Step-by-Step Guide
- Download and install latest Nvidia driver supported by this patch.
- Download latest Win_1337_Apply_Patch tool.
- Save appropriate patch(es) from Version Table using direct link to the patch (Right Click -> Save as...). Alternatively you may checkout repo using git or download it as ZIP archive and then locate corresponding .1337 patch file in
windirectory. - Apply x64 library patch to corresponding file in
%WINDIR%\system32\with the Win_1337_Apply_Patch tool. File name of patched object is specified in first line of .1337 patch. If x86 (32 bit) library patch is also available, apply it to same file in%WINDIR%\SysWOW64\.
E.g, for 64bit Windows 10 running driver version 440.97 use win10_x64/440.97/nvcuvid64.1337 against C:\WINDOWS\system32\nvcuvid.dll and win10_x64/440.97/nvcuvid32.1337 against C:\WINDOWS\SysWOW64\nvcuvid.dll.
There are additional steps may be required for Plex and 32bit apps users. See corresponding section below. We hope this is obsoleted by new additional x86 (32bit) library patch.
A video tutorial is also available. Credits to designator2009. (Covers pre-x86 patches. Now we probably don't need to autorun executable if x86 library patch applied)
Version Table
Windows 10 drivers
| Product series | Version | x64 library patch | x86 library patch | Driver link |
|---|---|---|---|---|
| Quadro | 412.16 | Direct link | Direct link | |
| Quadro | 412.29 | Direct link | Direct link | |
| Quadro | 416.78 | Direct link | Direct link | |
| Quadro | 418.81 | Direct link | Direct link | |
| Quadro | 419.17 | Direct link | Direct link | |
| Quadro | 419.67 | Direct link | Direct link | |
| Quadro | 425.31 | Direct link | Direct link | |
| Quadro | 430.39 | Direct link | Direct link | |
| Quadro | 430.64 | Direct link | Direct link | |
| Quadro | 430.86 | Direct link | Direct link | |
| Quadro | 431.02 | Direct link | Direct link | |
| Quadro | 431.70 | Direct link | Direct link | |
| Quadro | 431.86 | Direct link | Direct link | |
| Quadro | 431.94 | Direct link | Direct link | |
| Quadro | 436.02 | Direct link | Direct link | |
| Quadro | 436.30 | Direct link | Direct link | |
| Quadro | 440.97 | Direct link | Direct link | Direct link |
Windows 7, Windows 8, Windows 8.1 drivers
| Product series | Version | x64 library patch | x86 library patch | Driver link |
|---|---|---|---|---|
| GeForce | 431.60 | Direct link | Direct link | |
| GeForce | 436.02 | Direct link | Direct link | |
| GeForce | 436.15 | Direct link | Direct link | |
| GeForce | 436.30 | Direct link | Direct link | |
| GeForce | 436.48 | Direct link | Direct link | |
| GeForce | 440.97 | Direct link | Direct link | Direct link |
| GeForce | 441.08 | Direct link | Direct link | Direct link |
| Product series | Version | x64 library patch | x86 library patch | Driver link |
|---|---|---|---|---|
| Quadro | 431.02 | Direct link | Direct link | |
| Quadro | 431.70 | Direct link | Direct link | |
| Quadro | 431.86 | Direct link | Direct link | |
| Quadro | 431.94 | Direct link | Direct link | |
| Quadro | 436.02 | Direct link | Direct link | |
| Quadro | 436.30 | Direct link | Direct link | |
| Quadro | 440.97 | Direct link | Direct link | Direct link |
Windows Server 2008R2, 2012, 2012R2 drivers
| Product series | Version | x64 library patch | x86 library patch | Driver link |
|---|---|---|---|---|
| Quadro | 430.64 | Direct link | Direct link | |
| Quadro | 430.86 | Direct link | Direct link | |
| Quadro | 431.02 | Direct link | Direct link | |
| Quadro | 431.70 | Direct link | Direct link | |
| Quadro | 431.86 | Direct link | Direct link | |
| Quadro | 431.94 | Direct link | Direct link | |
| Quadro | 440.97 | Direct link | Direct link | Direct link |
Windows Server 2016, 2019 drivers
| Product series | Version | x64 library patch | x86 library patch | Driver link |
|---|---|---|---|---|
| Quadro | 430.86 | Direct link | Direct link | |
| Quadro | 431.02 | Direct link | Direct link | |
| Quadro | 431.70 | Direct link | Direct link | |
| Quadro | 431.86 | Direct link | Direct link | |
| Quadro | 431.94 | Direct link | Direct link | |
| Quadro | 440.97 | Direct link | Direct link | Direct link |
Benchmarks
- Plex Media Server: nVidia Hardware Transcoding Calculator for Plex Estimates - useful benchmark of achieved simultaneous transcodes with various stream quality and hardware with patched drivers.
See also
- Genesis in related issue
D3D11 and 32-bit apps encoding sessions
This section is actual only for D3D11 encoders and earlier driver versions (before 440.97).
This patch for earlier driver versions (those which do not have additional 32bit library patch) wasn't covering 32bit driver libraries and for this reason 32bit applications were limited unless limit is not raised by some 64bit applications. But once usage limit was exceeded, it persists for all kinds of apps until system reboot. So, for example, you may once open 10 sessions with 64bit version of ffmpeg and limit will get raised to 10 for all rest types of apps until reboot. You may follow these steps to achieve this automatically and have all limits raised (assuming patch above already applied):
Method 1 (recommended)
- Download and run latest release of NvencSessionLimitBump.
- (Optional) Add it to autostart programs.
By default this application raises limit to 32 encoding sessions. Credits to @jantenhove.
Method 2 (alternative)
- Download 64bit FFmpeg for Windows: https://ffmpeg.zeranoe.com/builds/
- Unpack it somewhere.
- Get
ffmpeg_null_10streams.cmdfrom this repo. - Edit
ffmpeg_null_10streams.cmdand set executable path to real location of your unpacked ffmpeg. - (Optional) Add
ffmpeg_null_10streams.cmdto autostart programs.
Bonus: you may use this AutoIt script from @wazerstar for silent startup of console applications bumping sessions.
Also you may use these methods to check if patch applied correctly and limit was raised. Use them when nothing works and you are in doubt.