DX12 instability and long-session crashes on PC (DX11 stable)
Platform
PC (Windows 11 Pro)
Game Version
Latest available version (post-Vol. 9, end-of-support build)
Issue Summary
Need for Speed Unbound exhibits consistent instability when running under DirectX 12, resulting in crashes after variable playtime (10 minutes to ~1–2 hours).
The same system is fully stable under DirectX 11, and other DX12 titles run without issue.
This strongly suggests an engine-level DX12 issue specific to NFS Unbound, rather than a hardware or driver problem. This issue has been reproduced across multiple driver versions and persists on next-generation hardware.
System Specifications
• Motherboard : ASUS GAMING Z790-PLUS WIFI DDR5
• PSU : ASUS ROG Thor Titanium III 1600W ATX 3.1 Platinum
• CPU : Intel core i9-14900KF 6.00 GHz
• RAM : Crucial Pro UDIMM 2x 64GB DDR5-5600 (128GB)
• GPU : ASUS ROG Astral GeForce RTX 5090 White OC 32GB
• WaterCooler : Arctic Liquid Freezer III Pro 420 A-RGB Black
(System is stable in all other DX12 games, including new Battlefield and Call Of Duty.)
Reproduction Details
Launch the game using default settings (DX12, no custom launch options)
Play normally (offline or online)
Crash occurs after:
30–45 minutes in some cases
Up to ~1–2 hours in others
Crashes commonly occur during:
Police chases
Race transitions
Garage/menu transitions
Long uninterrupted sessions (such as collectables etc.)
No consistent error message is shown; game exits to desktop.
Expected Result
Stable long-session gameplay under DX12, comparable to DX11 stability and to other modern DX12 titles.
Troubleshooting Already Performed
Clean GPU driver installs (multiple versions tested)
Windows system checks (event logs, system integrity)
Verified no malware or OS corruption
Hardware inspection and thermal maintenance
No GPU overclocking or instability
Confirmed stability in other DX12 games
None of the above resolved DX12 crashes in NFS Unbound.
Workarounds
Forcing DirectX 11 via launch option (-dx11) results in full stability, even during long sessions.
This suggests DX11 driver-level memory management is masking an underlying DX12 engine issue.
Additional Notes
This issue persisted across multiple updates/volumes.
Patch notes mention “general stability fixes” but do not reference DX12-specific crash fixes.
With Vol. 9 appearing to be the final major update, it is unclear whether this issue was ever fully addressed.
The same issue was previously observed on an RTX 3090. Stability was achieved only by forcing DX11 and limiting GPU power to 70–80%, allowing 6–7 hour sessions without crashes.
Conclusion
This appears to be a DX12 implementation or memory/resource management issue within Need For Speed Unbound, not a system-specific or hardware-related problem.
Even on next-generation hardware, DX12 remains unstable while DX11 is reliable.
Any clarification on whether this issue is:
Known internally
Considered resolved
Or no longer planned to be addressed
would be appreciated.
