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AMD

Ryzen 9 7940HS Specifications

BGA8 cores / 16 threads

Released April 30, 2023

AMD's Ryzen 7040 mobile chip: eight Zen 4 cores and 16 threads boost to 5.2GHz from a 4GHz base, with 16MB of L3 cache and Radeon 780M graphics — the same core count, clock ceiling and cache as the newer 8945HS above it. AMD's page lists this chip's TDP as configurable across 35W to 54W rather than a single fixed figure, and a launch-era company table put the range at 35W to 45W. Built on 4nm process technology under the Phoenix codename, it launched in April 2023.

Tied 5th of 23 models in the Laptop CPU catalog on Boost clock — 2 models share this figure. Tied 12th of 23 models in the Laptop CPU catalog on L3 cache — 8 models share this figure.

Current best price

No tracked price — this page compares specifications alone.

Specifications

Cores
8
Threads
16
Socket
BGA
Boost clock
5.2 GHz
Base clock
4 GHz
L3 cache
16 MB
L2 cache
8 MB
TDP
35 W
Integrated graphics
Yes
Max power
54 W
Architecture
Zen 4 (Phoenix)
Process node
TSMC 4nm FinFET
Integrated GPU
AMD Radeon 780M
Memory support
DDR5

Guides for this category

How to choose a desktop CPUA chip's socket decides what it can go into; cores, cache and TDP decide what you actually get once it's installed.How many CPU cores you actually needWhy more cores is not more speed, how gaming and productivity ask for cores differently, and why a core count alone never ranks two chips.When a CPU price is actually goodWhy a chip's list price and discount percentage tell you little, what a processor's price does over its life, and how to read its tracked history.Laptop CPU vs desktop CPUA mobile chip with the same core count is not the same processor — what the power envelope changes, and why these parts carry no price.

What owners and reviewers say

Summarised from 1 source(s), reviewed September 14, 2026. A source is counted only where it names this model exactly. How we track prices

Commonly praised

  • Reviewers found strong CPU and GPU performance in both Windows and Ubuntu, with the Radeon 780M coping with light gaming.
  • Idle and load power consumption were low for an eight-core mini PC.
  • Linux benchmarks showed the chip holding up well against comparable Intel and AMD mini PCs.

Commonly criticised

  • Its performance depends heavily on how the host chassis sets cooling and power limits.

Sources behind this summary

Sources

Every spec above was pulled from one of these — a field a source didn't state was left off rather than estimated.