NVIDIA's GeForce 456.38 driver, released in September 2020, represents a significant milestone in the Windows 10 era that continues to hold relevance for specific user scenarios, particularly those running older GeForce hardware or seeking a stable, feature-complete driver package for 64-bit Windows 10 systems. While newer drivers have since been released with support for current-generation GPUs and features, the 456.38 build occupies a unique position in NVIDIA's driver history as one of the last major releases before the company shifted its driver architecture and support policies. This driver was particularly notable for being the first Game Ready driver to officially support NVIDIA's then-flagship Ampere architecture GPUs—the GeForce RTX 3080 and RTX 3090—while also introducing support for Fortnite with RTX enabled, bringing real-time ray tracing to one of the world's most popular games.

The Historical Context of Driver 456.38

Released on September 17, 2020, the GeForce 456.38 driver arrived at a pivotal moment in GPU history. This was the launch driver for NVIDIA's revolutionary Ampere architecture, specifically designed to optimize performance for the newly released RTX 3080 and RTX 3090 graphics cards. According to NVIDIA's official release notes, this driver provided \"day-one support\" for these GPUs, ensuring they would perform optimally right out of the box. The timing was crucial—these cards represented a significant leap in performance over the previous Turing architecture, with NVIDIA claiming up to 2x performance improvement in traditional rasterization and even greater gains in ray tracing workloads compared to the RTX 2080 Ti.

Beyond Ampere support, the 456.38 driver was also significant for being one of the last major releases before NVIDIA restructured its driver support model. In October 2021, NVIDIA announced it would no longer provide driver updates for Kepler architecture GPUs (GeForce 600 and 700 series, excluding 750 and 750 Ti) starting with the R495 driver. This made 456.38 one of the final drivers to offer comprehensive support for a wide range of legacy hardware while still incorporating modern features and optimizations.

Fortnite RTX: A Watershed Moment for Ray Tracing

The inclusion of Fortnite RTX support in driver 456.38 marked a turning point for real-time ray tracing technology. Before this release, ray tracing had been primarily featured in AAA single-player titles with smaller player bases. Fortnite, with its hundreds of millions of registered players, brought ray tracing to the mainstream in an unprecedented way. The implementation included several ray-traced effects:

  • Ray-traced reflections: Accurate reflections on water, windows, and other reflective surfaces
  • Ray-traced shadows: More realistic shadows with proper contact hardening and penumbra effects
  • Ray-traced global illumination: Improved lighting that realistically bounces between surfaces
  • Ray-traced ambient occlusion: More accurate shadowing in corners and crevices

Performance impact varied significantly depending on hardware. On RTX 3080 and 3090 cards, players could expect playable frame rates at 1440p and even 4K resolutions with DLSS enabled, while older RTX 20-series cards typically required DLSS to maintain competitive frame rates at higher resolutions. The integration demonstrated that ray tracing could be implemented in competitive multiplayer games without completely sacrificing performance, thanks largely to DLSS technology.

Performance Characteristics and Benchmarks

Independent testing at the time of release showed that the 456.38 driver provided solid performance across a range of titles. For RTX 3080 and 3090 owners, this driver offered:

  • Excellent out-of-box performance for new Ampere GPU owners
  • Stable frame rates in both traditional rasterized games and RTX-enabled titles
  • Proper implementation of NVIDIA Reflex technology for reduced system latency in supported games
  • Optimized performance for DirectX 12 Ultimate features, including mesh shaders and sampler feedback

Comparative analysis between 456.38 and subsequent drivers reveals that while newer drivers often include optimizations for more recent games, the 456.38 build remains remarkably stable for its era. Users running older game libraries from 2020 and earlier frequently report that 456.38 provides excellent stability with fewer compatibility issues than some newer drivers that prioritize optimization for recent releases.

Legacy Hardware Support and Modern Relevance

One of the most compelling reasons users continue to seek out the 456.38 driver today is its broad compatibility with older NVIDIA hardware. This driver supports:

  • GeForce 10-series (Pascal) with full feature support
  • GeForce 900-series (Maxwell 2) with most features intact
  • GeForce 700-series (Kepler/Maxwell 1) with basic functionality
  • Even some 600-series cards with limited feature sets

For users running older systems who don't play the latest games, 456.38 represents a \"sweet spot\" driver that includes modern features like Ansel, Freestyle, and Broadcast functionality while maintaining compatibility with hardware that would eventually lose support in later driver releases. This makes it particularly valuable for:

  1. Secondary systems with older GPUs that still need to perform basic tasks
  2. Media center PCs where stability is more important than cutting-edge game optimizations
  3. Professional users who need specific driver certification for creative applications
  4. System builders creating budget systems with used components

Stability Considerations in the Windows 10 Ecosystem

The 456.38 driver has earned a reputation for exceptional stability within the Windows 10 environment. User reports across various forums consistently highlight fewer crashes, blue screens, and compatibility issues compared to some newer driver releases. This stability can be attributed to several factors:

  • Mature codebase that had undergone extensive testing by the time of release
  • Limited feature creep compared to later drivers that added support for increasingly complex technologies
  • Optimized for Windows 10 2004 (May 2020 Update) which was itself a relatively stable Windows release
  • Less aggressive power management that caused fewer issues with certain motherboard/PSU combinations

For enterprise environments or systems where uptime is critical, many IT administrators continue to deploy 456.38 or similar vintage drivers rather than constantly updating to the latest release. The principle of \"if it isn't broken, don't fix it\" applies particularly well to GPU drivers, where new releases can sometimes introduce as many problems as they solve.

Security Considerations and Modern Vulnerabilities

While the 456.38 driver offers stability and broad compatibility, users must consider security implications when running older drivers. Since its release in September 2020, numerous security vulnerabilities have been discovered and patched in subsequent NVIDIA driver releases. These include:

  • CVE-2021-1051 through CVE-2021-1059: Multiple vulnerabilities patched in January 2021
  • CVE-2022-28181: A high-severity vulnerability patched in April 2022
  • Various other security fixes included in Game Ready and Studio driver updates through 2023 and 2024

Users running 456.38 on internet-connected systems should implement additional security measures, including:

  • Regular Windows updates to patch operating system vulnerabilities
  • Network-level protection through firewalls and security software
  • Limited user privileges to reduce potential impact of any exploits
  • Isolation from critical systems if possible

For systems that are air-gapped or used exclusively for gaming without sensitive data, these security concerns may be acceptable trade-offs for the stability benefits. However, for general-purpose computing or systems handling sensitive information, updating to a more recent, security-patched driver is strongly recommended.

Installation Considerations and Best Practices

Users seeking to install the 456.38 driver on modern systems should follow specific procedures to ensure compatibility and stability:

  1. Complete driver removal using Display Driver Uninstaller (DDU) in Safe Mode before installation
  2. Disconnect from the internet during installation to prevent Windows Update from automatically installing a newer driver
  3. Custom installation with selection of only necessary components to minimize potential conflicts
  4. Clean installation option to ensure no legacy driver files interfere with the installation
  5. System restore point creation before installation to enable easy rollback if issues arise

It's also important to note that while 456.38 supports Windows 10 64-bit systems, its compatibility with Windows 11 is limited. Users who have upgraded to Windows 11 should generally use newer drivers specifically optimized for Microsoft's latest operating system, as they include necessary compatibility fixes and optimizations for WDDM 3.0 and other Windows 11-specific features.

The Verdict: When to Use GeForce 456.38 in 2024

Four years after its initial release, the GeForce 456.38 driver remains relevant for specific use cases:

Ideal scenarios for 456.38:
- Older systems with GeForce 10-series or earlier GPUs
- Windows 10 systems requiring maximum stability over cutting-edge features
- Gaming PCs primarily playing titles from 2020 or earlier
- Systems experiencing issues with newer driver releases
- Media centers and HTPCs where consistent performance matters more than latest optimizations

Scenarios requiring newer drivers:
- RTX 40-series or recent GPU owners needing proper support
- Windows 11 systems requiring WDDM 3.0+ compatibility
- Gamers playing recent titles with DLSS 3 Frame Generation or other new technologies
- Security-conscious users needing patched vulnerabilities
- Creative professionals using latest Studio driver optimizations

Community Perspectives and Long-Term Value

The enduring interest in the 456.38 driver speaks to a broader trend in the PC community: the value of stability and proven performance over constant updates. While NVIDIA's regular driver updates provide optimizations for new games and features, they can sometimes introduce instability or compatibility issues with older hardware or software configurations.

Many users in enthusiast forums report keeping archived copies of 456.38 and other \"golden\" drivers that have proven exceptionally stable for their specific hardware configurations. This practice highlights an important consideration in PC building and maintenance: sometimes the latest software isn't the best software for every situation.

For those maintaining legacy systems or seeking maximum stability for specific use cases, the GeForce 456.38 driver represents a time capsule of sorts—a snapshot of GPU driver development at a particular moment when NVIDIA was balancing support for revolutionary new hardware (Ampere) with maintenance of older architectures, all while introducing groundbreaking features like Fortnite RTX support. Its continued relevance years after release is a testament to its quality and the specific needs of a segment of the PC user base that values reliability above all else.

As the PC ecosystem continues to evolve with new technologies like AI-accelerated features and increasingly complex rendering techniques, drivers like 456.38 serve as important reference points for understanding the trade-offs between innovation and stability in graphics driver development. They remind us that in the relentless pursuit of performance and features, there remains significant value in software that simply works reliably, day after day, without surprises or complications.