HomeNVIDIA DriversNVIDIA driver version Version 456.71 release notes

NVIDIA driver version Version 456.71 release notes

NVIDIA game ready driver for the upcoming Open Beta for Call of Duty: Black Ops Cold War.

Version 456.71 WHQL Highlights

This section provides highlights of version 456.71 WHQL of the NVIDIA Release 455 Driver for Windows 7, Windows 8, Windows 8.1, and Windows 10.

What’s New in Version 456.71 WHQL

Game Ready Drivers provide the best possible gaming experience for all major new releases. Prior to a new title launching, our driver team is working up until the last minute to ensure every performance tweak and bug fix is included for the best gameplay on day-1.

Game Ready for Call of Duty: Black Ops Cold War PC Beta

This new Game Ready Driver provides support for the upcoming Open Beta for Call of Duty: Black Ops Cold War. In addition, this driver enables support for NVIDIA Reflex in the Beta, allowing GeForce gamers to reduce system latency and improve responsiveness of gameplay.

New Features and Other Changes

  • Administrator privileges are now required to perform EDID override.

What’s New in Release 455

  • Supports CUDA 11.1.

SLI Profiles Added or updated the following SLI profiles:

  • Baldur’s Gate 3
  • Comanche (NVIDIA Turing GPUs only)
  • Crusader Kings III
  • Disintegration (NVIDIA Turing GPUs only
  • Population Zero
  • RIDE 4 (NVIDIA Turing GPUs only)
  • Rocket Arena (NVIDIA Turing GPUs only)
  • The Blackout Club (NVIDIA Turing GPUs only)
  1. Includes support for GeForce RTX 3080 and 3090 GPUs2
  2. Adds support for new G-SYNC compatible monitors. Select the driver version under the Driver Needed column to display new monitors supported in that driver.
  3. GeForce Experience Automatic Performance Tuning for GeForce RTX 30-series and RTX 20-series
  4. GeForce Experience in-game performance monitoring for GeForce GTX 600 series and above
  5. ShadowPlay gameplay recording now supports HDR on GTX 900-series and above (RTX 3090 can capture 8K 30fps HDR)
  6. NVIDIA Broadcast app with AI-powered noise removal and virtual background

Limitations in This Release

The following features are not currently supported or have limited support in this driver release:

Using HDR with Games

There may be issues resulting from the interaction between in-game HDR settings and the Windows HDR settings. See the NVIDIA Knowledge Base Article 5072 (https://nvidia.custhelp.com/app/answers/detail/a_id/5072) for details.

Implicit SLI Disabled on NVIDIA Ampere GPUs

Implicit SLI, where the driver makes assumptions with application profiles to achieve GPU scaling, is disabled on NVIDIA Ampere GPUs. Explicit SLI is still supported, where the application knows the SLI state and uses extensions (such as DirectX 12 linked nodes, Vulkan device groups, or OpenGL multicast extensions) to issue commands to each device in the SLI group. See the NVIDIA Knowledge Base Article 5082 (https://nvidia.custhelp.com/app/answers/detail/a_id/5082) for more information.

Image Sharpening Feature

NVIDI A Control Panel Image sharpening controls, including GPU upscaling, are introduced in the R440 driver. Currently, the following limitations apply.

  • Scaling is not supported on MSHybrid systems
  • HDR displays driven by pre-Turing GPUs will not support scaling
  • Scaling will not work with VR
  • Scaling will not work with displays using YUV420 format
  • Scaling uses aspect ratio scaling and will not use integer scaling
  • Sharpening will not work with HDR displays
  • GPU scaling engages when games are played only in full-screen mode, and not in windowed or borderless windowed mode.
  • Some G-SYNC displays have a 6-tap/64-phase scaler which scales better than that offered by Turing’s 5-tap/32-phase scaler.
  • To avoid accidentally triggering scaling by applications or DWM, first change to the desired (< native) resolution from the NVIDIA Control Panel and then launch the application.
  • Turing’s 5-tap upscaler may not engage on certain monitors depending on the monitor’s vblank timing.
  • Turing’s 5-tap upscaler may not engage if the input resolution is greater than 2560px in either the x or y dimension.
  • Scaling is turned off automatically when switching display devices.
  • “Restore Defaults” option in the control panel currently does not revert the upscaling resolution.

Behavior Change in NvEncCreateBitstreamBuffer API of Video Codec SDK

In the NVIDIA driver, Release 415 and later, the behavior of the Video Codec SDK API (NvEncCreateBitstreamBuffer) has been changed to return NV_ENC_ERR_UNIMPLEMENTED instead of NV_ENC_SUCCESS when the encoder instance is configured to run in the motion estimation-only mode. As an indirect consequence of this change, the AppEncME sample application from the Video Codec SDK prior to SDK version 8.2.16 will crash due to a bug in the NvEncoder class.

The latest version of the SDK fixes this bug that affects the AppEncME sample application. NVIDIA recommends downloading the latest version from https://developer.nvidia.com/nvidia-video-codec-sdk.

Connecting Displays to NVIDIA Turing GPUs in SLI Mode

To use SLI with NVIDIA Turing GPUs, all displays must be connected to the primary SLI GPU.

Turing GPU Driver Installation on Windows 10

Drivers for Turing GPUs will not be installed on systems with Windows 10 RS2 or earlier. This includes Windows 10 Threshold 1, Threshold 2, Redstone 1, and Redstone 2 operating systems.

Crescent Bay and OSVR Headsets on Multiple GPU Systems

With Release 367 and future NVIDIA drivers, Crescent Bay and Open Source Virtual Reality development kit headsets will not work with VRWorks Direct Mode in systems that contain GPUs from multiple vendors (for example, NVIDIA and Intel). For such systems, please disable the Intel integrated graphics (from the system BIOS) in order to use Direct Mode.

Changes and Fixed Issues in Version 456.71

The following sections list the important changes and the most common issues resolved in this version. This list is only a subset of the total number of changes made in this driver version. The NVIDIA bug number is provided for reference.

Fixed Issues in this Release

  • [Divinity: Original Sin 2 Definitive Edition]: Enabling Hardware-accelerated GPU Scheduling results in lower frame rate. [3129590]
  • [G-SYNC]: Launching a game in full-screen mode may trigger a black screen on adaptive sync monitors if G-SYNC is enabled. [200660138]
  • [Fortnite][Notebook]: The game may crash when using in-game RTX Shadows/Reflection on some notebook configurations. [200655541]

Open Issues in Version 456.71 WHQL

As with every released driver, version 456.71 WHQL of the Release 455 driver has open issues and enhancement requests associated with it. This section includes lists of issues that are either not fixed or not implemented in this version. Some problems listed may not have been thoroughly investigated and, in fact, may not be NVIDIA issues. Others may have workaround solutions.

Windows 7 Issues

  • [Notebook][H-Clone]: With the integrated graphics processor as the clone source, display settings cannot be changed from the NVIDIA Control Panel. [200594188]

Windows 10 Issues

  • [World of Warcraft Shadowlands]: When run at frame rates greater than 60 FPS with high display settings, moving characters display minute twitching/stuttering. [200647563]
  • [Sunset Overdrive]: The game may display random green corruption if Depth of Field is enabled from in-game settings. [2750770]
  • [Call of Duty – Warzone]: Freestyle does not work. (200593020)
  • [Forza Motorsport 7]: The curb may display a black strip during a race on certain tracks. [2781776]
  • [Fortnite]: Blue-screen crash occurs pointing to nvlddmkm.sys when playing the game at 4K resolution. [200645328]–To work around, set the resolution to lower than 4k.
  • [Zombie Army: Dead War 4][Ansel/Freestyle]: The Ansel & Freestyle tabs are unselectable. [2810884]–You may encounter issues installing the NVIDIA Control Panel from the Windows Store. See “Issues Installing the NVIDIA Control Panel from the Windows Store” on page 21 for more information.
  • [YouTube]: Video playback stutters while scrolling down the YouTube page. [3129705]
  • [G-SYNC]: With G-SYNC enabled on some Freesync displays, half of the screen goes black. [3133895]
  • [GeForce RTX 3080/3090]: Samsung G9 49” display goes black at 240 Hz. [3129363]
  • [Notebook][H-Clone]: With the integrated graphics processor as the clone source, display settings cannot be changed from the NVIDIA Control Panel. [200594188]
  • [Notebook]: Some Pascal-based notebooks w/ high refresh rate displays may randomly drop to 60Hz during gameplay. [3009452]

Issues Not Caused by NVIDIA Drivers

This section lists issues that are not due to the NVIDIA driver as well as features that are not meant to be supported by the NVIDIA driver.

Cross-adapter Clone Mode

Under Windows 10, clone mode across graphics processors is handled by the Windows OS, and not by the NVIDIA driver. Consequently, there are no controls for cross-adapter clone mode in the NVIDIA Control Panel under Windows 10.

Functionality of some display controls in the NVIDIA Control Panel may be affected if cross-adapter clone mode is enabled through the Windows Control Panel. In this case, use the Windows Control Panel to adjust display settings.

Optimus Systems

Because cross-adapter clone mode is handled by the Windows 10 OS, there are no display controls in the NVIDIA Control Panel if no display is connected to the NVIDIA GPU on Optimus notebooks.

Windows 7 Considerations

Hotplug Action

Under Windows 7, the default settings are not applied when a new display is hotplugged, and there is no message balloon alert stating that a new display was detected. All display connection and detection events are handled through the Windows 7 Connecting and Configuring Displays (CCD) mechanism.

Operating System Issues

  • [Windows 10 Fall Creators Update][HDTV]: 12 bpc is automatically applied even on HDTVs that support only 8 bpc, resulting in a scrambled display. [2007663]To work around, open the NVIDIA Control Panel->Change Resolution page, select “Use NVIDIA color settings”, then set the Output color depth to 8 bpc.
  • When upgrading from Windows 7 to Windows 8, the system fails to retrieve the installed WHQL display driver. [1024416]
Charles Leverehttps://www.riverbankwebdesign.ca/
Charles Levere is the editor-in-chief (dork-in-chief) of Urban Dork. When he is not writing or tinkering with hardware, he is most likely playing one of his favorite video games. He also loves being near the water, kayaking, water skiing, or anything that gets him on the water and in the sun.


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