Taken from the game’s page on Steam:
Minimum:
Requires a 64-bit processor and operating system
OS: Windows 10 64-Bit / Windows 11 64-Bit
Processor: AMD Zen 2 or Intel 10th Generation CPU @3.2Ghz with 8 cores / 16 threads or better (examples: AMD Ryzen 7 3700X or better, or Intel Core i7 10700K or better)
Memory: 16 GB RAM
Graphics: NVIDIA or AMD hardware Raytracing-capable GPU with 8GB dedicated VRAM or better (examples: NVIDIA RTX 2060 SUPER or better, AMD RX 6600 or better)
Storage: 100 GB available space
Recommended:
Requires a 64-bit processor and operating system
OS: Windows 10 64-Bit / Windows 11 64-Bit
Processor: AMD Zen 3 or Intel 12th Generation CPU @3.2Ghz with 8 cores / 16 threads or better (examples: AMD Ryzen 7 5700X or better, or Intel Core i7 12700K or better)
Memory: 32 GB RAM
Graphics: NVIDIA or AMD hardware Raytracing-capable GPU with 10GB dedicated VRAM or better (examples: NVIDIA RTX 3080 or better, AMD RX 6800 or better)
Storage: 100 GB available space
Additionally, Doom: The Dark Ages requires NVME SSD storage.