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AMD Ryzen 7 7840HS vs AMD Ryzen 7 7840U: Comparison
Ryzen 7 7840HS vs Ryzen 7 7840U: the p-core base clock difference
They are built to different briefs, and p-core base clock shows it, Ryzen 7 7840HS 3.8 GHz against Ryzen 7 7840U 3.3 GHz. There is a split on configurable tdp floor as well, 35 W on the Ryzen 7 7840HS versus 15 W on the Ryzen 7 7840U. They differ on base power too, 35 W on the Ryzen 7 7840HS versus 28 W on the Ryzen 7 7840U. Max turbo power is not the same on both, 54 W on the Ryzen 7 7840HS versus 30 W on the Ryzen 7 7840U.
Ryzen 7 7840HS vs Ryzen 7 7840U: which one fits your build
The Ryzen 7 7840HS suits mainstream desktop builds and everyday productivity, though it is not built for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads. The Ryzen 7 7840U is the one to take for mainstream desktop builds and everyday productivity, though it is the wrong buy for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads.
What Ryzen 7 7840HS and Ryzen 7 7840U have in common
Everything else lines up. Total cores, performance cores, efficiency cores, total threads and p-core boost clock read the same on both, so those are not worth weighing. They match on 19 further specifications as well.
Frequently asked questions
Is the L3 Cache the same on the Ryzen 7 7840HS and Ryzen 7 7840U?
It is. Both are listed at 16 MB, so it is not a reason to pick one over the other.
Specs and benchmarks
Product Line
- AMD Ryzen 7 7840HS
- Ryzen 7
- AMD Ryzen 7 7840U
- Ryzen 7
Form Factor
- AMD Ryzen 7 7840HS
- Laptop
- AMD Ryzen 7 7840U
- Laptop
Model Number
- AMD Ryzen 7 7840HS
- 7840HS
- AMD Ryzen 7 7840U
- 7840U
Codename
- AMD Ryzen 7 7840HS
- Phoenix
- AMD Ryzen 7 7840U
- Phoenix
Release Year
- AMD Ryzen 7 7840HS
- 2023
- AMD Ryzen 7 7840U
- 2023
iGPU
- AMD Ryzen 7 7840HS
- AMD Radeon 780M
- AMD Ryzen 7 7840U
- AMD Radeon 780M
Market Segment
- AMD Ryzen 7 7840HS
- Laptop
- AMD Ryzen 7 7840U
- Laptop
Microarchitecture
- AMD Ryzen 7 7840HS
- Zen 4
- AMD Ryzen 7 7840U
- Zen 4
Socket
- AMD Ryzen 7 7840HS
- FP7, FP7r2, FP8
- AMD Ryzen 7 7840U
- FP7, FP7r2, FP8
Process Node
- AMD Ryzen 7 7840HS
- TSMC 4nm FinFET
- AMD Ryzen 7 7840U
- TSMC 4nm FinFET
Total Cores
- AMD Ryzen 7 7840HS
- 8
- AMD Ryzen 7 7840U
- 8
Performance Cores
- AMD Ryzen 7 7840HS
- 8
- AMD Ryzen 7 7840U
- 8
Efficiency Cores
- AMD Ryzen 7 7840HS
- 0
- AMD Ryzen 7 7840U
- 0
Total Threads
- AMD Ryzen 7 7840HS
- 16
- AMD Ryzen 7 7840U
- 16
SMT Enabled
- AMD Ryzen 7 7840HS
- Yes
- AMD Ryzen 7 7840U
- Yes
P-Core Base Clock
- AMD Ryzen 7 7840HS
- 3.8 GHz
- AMD Ryzen 7 7840U
- 3.3 GHz
P-Core Boost Clock
- AMD Ryzen 7 7840HS
- 5.1 GHz
- AMD Ryzen 7 7840U
- 5.1 GHz
Unlocked Multiplier
- AMD Ryzen 7 7840HS
- No
- AMD Ryzen 7 7840U
- No
L2 Cache
- AMD Ryzen 7 7840HS
- 8 MB
- AMD Ryzen 7 7840U
- 8 MB
L3 Cache
- AMD Ryzen 7 7840HS
- 16 MB
- AMD Ryzen 7 7840U
- 16 MB
Base Power
- AMD Ryzen 7 7840HS
- 35 W
- AMD Ryzen 7 7840U
- 28 W
Max Turbo Power
- AMD Ryzen 7 7840HS
- 54 W
- AMD Ryzen 7 7840U
- 30 W
Configurable TDP Floor
- AMD Ryzen 7 7840HS
- 35 W
- AMD Ryzen 7 7840U
- 15 W
Memory Type
- AMD Ryzen 7 7840HS
- DDR5, LPDDR5X
- AMD Ryzen 7 7840U
- DDR5, LPDDR5X
Max Memory Speed
- AMD Ryzen 7 7840HS
- 7500 MT/s
- AMD Ryzen 7 7840U
- 7500 MT/s
Memory Channels
- AMD Ryzen 7 7840HS
- 2
- AMD Ryzen 7 7840U
- 2
Integrated Graphics
- AMD Ryzen 7 7840HS
- Yes
- AMD Ryzen 7 7840U
- Yes
iGPU Model
- AMD Ryzen 7 7840HS
- AMD Radeon 780M
- AMD Ryzen 7 7840U
- AMD Radeon 780M
iGPU Compute Units
- AMD Ryzen 7 7840HS
- 12
- AMD Ryzen 7 7840U
- 12
Copilot Plus Certified
- AMD Ryzen 7 7840HS
- No
- AMD Ryzen 7 7840U
- No
PCIe Generation
- AMD Ryzen 7 7840HS
- PCIe 4.0
- AMD Ryzen 7 7840U
- PCIe 4.0
Which one should you pick?
Choose 7840HS if you want the higher L2 cache (8 MB vs 8 MB), the higher L3 cache (16 MB vs 16 MB) and the higher memory channels (2 vs 2).
Choose 7840U if you already have it on hand or find it at a lower price.