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AMD Ryzen 7 5800U vs AMD Ryzen 7 7840HS: Comparison
What is the difference between Ryzen 7 5800U and Ryzen 7 7840HS?
P-core boost clock is the dividing line, Ryzen 7 5800U 4.4 GHz against Ryzen 7 7840HS 5.1 GHz. They differ on p-core base clock too, 1.9 GHz on the Ryzen 7 5800U versus 3.8 GHz on the Ryzen 7 7840HS. Add l2 cache to that, 4 MB on the Ryzen 7 5800U versus 8 MB on the Ryzen 7 7840HS, and the pattern holds. There is a split on socket as well, FP6 on the Ryzen 7 5800U versus FP7, FP7r2, FP8 on the Ryzen 7 7840HS. They differ on release year too, 2021 on the Ryzen 7 5800U versus 2023 on the Ryzen 7 7840HS. Igpu is not the same on both, AMD Radeon Graphics on the Ryzen 7 5800U versus AMD Radeon 780M on the Ryzen 7 7840HS. There is a split on microarchitecture as well, Zen 3 on the Ryzen 7 5800U versus Zen 4 on the Ryzen 7 7840HS. They differ on base power too, 15 W on the Ryzen 7 5800U versus 35 W on the Ryzen 7 7840HS. Memory type is closer, DDR4, LPDDR4 on the Ryzen 7 5800U versus DDR5, LPDDR5X on the Ryzen 7 7840HS.
Which should you buy, Ryzen 7 5800U or Ryzen 7 7840HS?
Take the Ryzen 7 5800U for ultraportable laptops wanting genuine Zen 3 architecture with strong single- and multi-thread performance at 15W. Avoid it for buyers on a tighter budget who don't need Zen 3 specifically, the Zen 2-based Ryzen 7 5700U offers similar core count for less. The Ryzen 7 7840HS suits mainstream desktop builds and everyday productivity, though it is not the pick for extreme overclocking (unless K/X-series) and workstation-class multi-threaded workloads.
What Ryzen 7 5800U and Ryzen 7 7840HS have in common
The common ground is wider than the gap: total cores, performance cores, efficiency cores, total threads and l3 cache are identical here. They match on 7 further specifications as well.
Frequently asked questions
Do the Ryzen 7 5800U and Ryzen 7 7840HS differ on max memory speed?
Yes. Max Memory Speed reads 4266 MT/s on the Ryzen 7 5800U versus 7500 MT/s on the Ryzen 7 7840HS.
Is the Integrated Graphics the same on the Ryzen 7 5800U and Ryzen 7 7840HS?
It is. Both are listed at Yes, so it is not a reason to pick one over the other.
Specs and benchmarks
Product Line
- AMD Ryzen 7 5800U
- Ryzen 7
- AMD Ryzen 7 7840HS
- Ryzen 7
Form Factor
- AMD Ryzen 7 5800U
- Laptop
- AMD Ryzen 7 7840HS
- Laptop
Model Number
- AMD Ryzen 7 5800U
- 5800U
- AMD Ryzen 7 7840HS
- 7840HS
Codename
- AMD Ryzen 7 5800U
- Cezanne
- AMD Ryzen 7 7840HS
- Phoenix
Release Year
- AMD Ryzen 7 5800U
- 2021
- AMD Ryzen 7 7840HS
- 2023
iGPU
- AMD Ryzen 7 5800U
- AMD Radeon Graphics
- AMD Ryzen 7 7840HS
- AMD Radeon 780M
Market Segment
- AMD Ryzen 7 5800U
- Laptop
- AMD Ryzen 7 7840HS
- Laptop
Microarchitecture
- AMD Ryzen 7 5800U
- Zen 3
- AMD Ryzen 7 7840HS
- Zen 4
Socket
- AMD Ryzen 7 5800U
- FP6
- AMD Ryzen 7 7840HS
- FP7, FP7r2, FP8
Process Node
- AMD Ryzen 7 5800U
- TSMC 7nm FinFET
- AMD Ryzen 7 7840HS
- TSMC 4nm FinFET
Total Cores
- AMD Ryzen 7 5800U
- 8
- AMD Ryzen 7 7840HS
- 8
Performance Cores
- AMD Ryzen 7 5800U
- 8
- AMD Ryzen 7 7840HS
- 8
Efficiency Cores
- AMD Ryzen 7 5800U
- 0
- AMD Ryzen 7 7840HS
- 0
Total Threads
- AMD Ryzen 7 5800U
- 16
- AMD Ryzen 7 7840HS
- 16
SMT Enabled
- AMD Ryzen 7 5800U
- Yes
- AMD Ryzen 7 7840HS
- Yes
P-Core Base Clock
- AMD Ryzen 7 5800U
- 1.9 GHz
- AMD Ryzen 7 7840HS
- 3.8 GHz
P-Core Boost Clock
- AMD Ryzen 7 5800U
- 4.4 GHz
- AMD Ryzen 7 7840HS
- 5.1 GHz
L2 Cache
- AMD Ryzen 7 5800U
- 4 MB-50%
- AMD Ryzen 7 7840HS
- 8 MBBest
L3 Cache
- AMD Ryzen 7 5800U
- 16 MB
- AMD Ryzen 7 7840HS
- 16 MB
Base Power
- AMD Ryzen 7 5800U
- 15 W
- AMD Ryzen 7 7840HS
- 35 W
Memory Type
- AMD Ryzen 7 5800U
- DDR4, LPDDR4
- AMD Ryzen 7 7840HS
- DDR5, LPDDR5XBest
Max Memory Speed
- AMD Ryzen 7 5800U
- 4266 MT/s
- AMD Ryzen 7 7840HS
- 7500 MT/sBest
Memory Channels
- AMD Ryzen 7 5800U
- 2
- AMD Ryzen 7 7840HS
- 2
Integrated Graphics
- AMD Ryzen 7 5800U
- Yes
- AMD Ryzen 7 7840HS
- Yes
iGPU Model
- AMD Ryzen 7 5800U
- AMD Radeon Vega 8 Graphics
- AMD Ryzen 7 7840HS
- AMD Radeon 780M
iGPU Compute Units
- AMD Ryzen 7 5800U
- 8
- AMD Ryzen 7 7840HS
- 12
Copilot Plus Certified
- AMD Ryzen 7 5800U
- No
- AMD Ryzen 7 7840HS
- No
PCIe Generation
- AMD Ryzen 7 5800U
- PCIe 3.0
- AMD Ryzen 7 7840HS
- PCIe 4.0
Which one should you pick?
Choose 5800U if you want the higher L3 cache (16 MB vs 16 MB) and the higher memory channels (2 vs 2).
Choose 7840HS if you want the higher L2 cache (8 MB vs 4 MB).