AMD Ryzen 7 7840H
Expert rating8.1 / 10
- Brand:
- AMD
- Form Factor:
- Laptop
- CPU Socket:
- BGA (soldered
- Core/Thread Count:
- 8C/16T
- TDP:
- 45W
- iGPU:
- AMD Radeon 660M Graphics (RDNA 2)
- CPU Series:
- Ryzen
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Manufacturer: AMD Last updated: 2026-09-12
AMD Ryzen 7 7840H Review
AMD Ryzen 7 7840H 8-core 16-thread mobile processor, 3.1GHz base / 5.0GHz boost, 45W TDP, Zen 4 (Phoenix/Rembrandt refresh)
The AMD Ryzen 7 7840H is a mainstream performance laptop chip for everyday multitasking and light creative work. Built on AMD's Zen 4 (Phoenix/Rembrandt refresh), it pairs 8 cores and 16 threads with a 3.1GHz base clock boosting to 5.0GHz and 16MB of L3 cache, all within a 45W power envelope.
Performance and Architecture
With 8 cores and 16 threads, the AMD Ryzen 7 7840H is built on AMD's Zen 4 (Phoenix/Rembrandt refresh). Its 3.1GHz base clock boosts up to 5.0GHz, backed by 16MB of L3 cache for solid multitasking and application performance in a laptop chassis.
Graphics and Efficiency
The AMD Ryzen 7 7840H operates within a 45W power envelope, positioned as a mainstream performance laptop chip for everyday multitasking and light creative work. Integrated graphics come from AMD Radeon 660M Graphics (RDNA 2), handling everyday graphics tasks and light gaming without a discrete GPU.
Comparison to Alternatives
Within AMD's Ryzen mobile lineup in this catalog, the AMD Ryzen 7 7840H sits among other Zen 4 (Phoenix/Rembrandt refresh) parts at the 8-core tier, differentiated by suffix and TDP class. Against Intel's Core Mobile processors in this catalog, the AMD Ryzen 7 7840H offers competitive multi-threaded performance and efficiency, while against AMD's own Ryzen AI Mobile chips in this catalog it trades a dedicated NPU/AI acceleration block for a simpler, often lower-cost platform.
Specifications
Identity
| Product Line | Ryzen 7 |
|---|---|
| Model Number | 7840H |
| Codename | Phoenix |
| Release Year | 2023 |
Segment and platform
| Market Segment | Laptop |
|---|---|
| Microarchitecture | Zen 4 (Phoenix/Rembrandt refresh) |
| Socket | BGA (soldered, mobile) |
| Socket | BGA |
| Process Node | 4 nm |
Core configuration
| Total Cores | 8 |
|---|---|
| Performance Cores | 8 |
| Efficiency Cores | 0 |
| Total Threads | 16 |
| SMT Enabled | Yes |
Clock speeds
| P-Core Base Clock | 3.1 GHz |
|---|---|
| P-Core Boost Clock | 5.0 GHz |
Cache
| L2 Cache | 8 MB |
|---|---|
| L3 Cache | 16 MB |
Power and thermal
| Base Power | 45 W |
|---|---|
| Max Turbo Power | 54 W |
| Configurable TDP Floor | 35 W |
Memory
| Memory Type | DDR5 or LPDDR5X |
|---|---|
| Max Memory Speed | 7500 MT/s |
| Memory Channels | 2 |
Graphics and AI
| Integrated Graphics | Yes |
|---|---|
| iGPU Model | AMD Radeon 780M |
| iGPU Compute Units | 12 |
| Copilot Plus Certified | No |
Expansion
| PCIe Generation | PCIe 4.0 |
|---|
| Form Factor | Laptop |
|---|---|
| TDP | 45 W |
| iGPU | AMD Radeon 660M Graphics (RDNA 2) |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating8.1 / 10
The AMD Ryzen 7 7840H strikes a strong balance between performance and portability for mainstream laptops.
Best for
- Mainstream laptops
- Multitasking and productivity
- Light creative work
Not for
- High-end gaming
- Extreme battery-life-first designs
- Workstation-class rendering
FAQs
What are the key specifications of the AMD Ryzen 7 7840H?
The AMD Ryzen 7 7840H is a processor from AMD. Key specs: Cores 8, Threads 16, Base Clock 3.1 GHz, Boost Clock 5.0 GHz, L3 Cache 16.
Will the AMD Ryzen 7 7840H work with my current setup?
The AMD Ryzen 7 7840H lists Socket is BGA (soldered, mobile). Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the AMD Ryzen 7 7840H best suited to?
It suits mainstream laptops, multitasking and productivity, light creative work.
What are the drawbacks of the AMD Ryzen 7 7840H?
It is a poor fit for high-end gaming, extreme battery-life-first designs, workstation-class rendering.