CPULaptopReleased Jan 17, 2024

AMD Ryzen 9 7940HX

16C/32T · 5.2 GHz · 55 W

The AMD Ryzen 9 7940HX is a sixteen-core, thirty-two-thread Dragon Range processor launched in January 2024 as a slightly lower-clocked sibling of the Ryzen 9 7945HX. It uses two 5 nm Zen 4 core chiplets and a 6 nm I/O die, reaching up to 5.2 GHz with 64 MB of L3 cache and 28 PCIe 5.0 lanes for high-end gaming laptops. The small two-CU Radeon 610M handles basic display duties. Its default TDP is 55 W, configurable up to 75 W.

General

Manufacturer: AMD
Model: AMD Ryzen 9 7940HX
Segment: Laptop
Generation: Ryzen 7045
Codename: Dragon Range
Architecture: x86_64
Microarchitecture: Zen 4
Release date: Jan 17, 2024
Price: Search on Amazon

Cores & clocks

Cores / threads: 16 cores / 32 threads
Base clock: 2.40 GHz
Boost clock: 5.20 GHz
TDP (design W): 55 W
Max: 75 W
Unlocked: ✓ Yes
L2 cache: 16 MB
L3 cache: 64 MB
Technology (nm): 5 nm
TSMC N5 (CCD) + N6 (IOD)

Platform

Socket: FL1
2-CPU (multi-socket): ✕ No
Integrated GPU: Radeon 610M
Clock: 2,200 MHz
Memory type: DDR5-5200
2-channel
Memory size: Up to 64 GB
ECC memory: ✕ No
PCIe: PCIe 5.0 (28 lanes)

Instructions & AI

Instruction extensions: AESAMD-VAVXAVX2AVX-512FMA3SHASSE4.1SSE4.2SSE4ASSSE3
NPU: None

OS support

Windows: Windows 10Windows 11 24H2Windows 11 25H2Windows 11 26H2
ChromeOS: ChromeOS
Linux: UbuntuFedoraArch Linux
Notes: AMD lists Windows 11 64-bit, Windows 10 64-bit, RHEL and Ubuntu support. Microsoft's Windows 11 25H2 supported-processor list covers the whole Ryzen 7000 Series and 26H2 keeps the 25H2 requirements. Fedora and Arch Linux run on mainline kernels, and ChromeOS Flex installs on generic 64-bit x86 hardware.