Official specs from Steam

Life is Strange: Double Exposure system requirements

Minimum and recommended PC specs as listed by the developer on Steam.

Minimum

NoteRequires a 64-bit processor and operating system
OSWindows® 10 / 11 64-bit
ProcessorIntel Core i5-2400 / AMD FX-6300
Memory12 GB RAM
GraphicsNVIDIA GeForce GTX 960, 4 GB / AMD Radeon RX 470, 4GB
DirectXVersion 12
Storage25 GB available space
Additional Notes1080p @ 30fps. SSD Recommended.

Recommended

NoteRequires a 64-bit processor and operating system
OSWindows® 10 / 11 64-bit
ProcessorIntel Core i7-7700K / AMD Ryzen 5 3600
Memory12 GB RAM
GraphicsNVIDIA GeForce RTX 2080 Super, 8GB / AMD Radeon RX 6700 XT, 12GB
DirectXVersion 12
Storage25 GB available space
Additional Notes1080p @ 60fps. SSD Recommended.

FAQ

What graphics card do I need for Life is Strange: Double Exposure?

Minimum: NVIDIA GeForce GTX 960, 4 GB / AMD Radeon RX 470, 4GB. Recommended: NVIDIA GeForce RTX 2080 Super, 8GB / AMD Radeon RX 6700 XT, 12GB.

How much RAM does Life is Strange: Double Exposure need?

Life is Strange: Double Exposure needs 12 GB RAM at minimum, 12 GB RAM recommended.

How big is Life is Strange: Double Exposure?

Life is Strange: Double Exposure requires 25 GB available space.

Does Life is Strange: Double Exposure run on Mac or Steam Deck/Linux?

There is no native macOS version. There is no native Linux build (Proton compatibility may vary).