AMD Ryzen 7 7840U
- Brand:
- AMD
- Form Factor:
- Desktop
- CPU Socket:
- FP7
- Core/Thread Count:
- 8C/16T
- TDP:
- 28W
- iGPU:
- AMD Radeon 780M
- CPU Series:
- Ryzen 7000 Series
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Manufacturer: AMD Last updated:
AMD Ryzen 7 7840U Review
AMD Ryzen 7 7840U desktop processor, 8C/16T 3.3 GHz base clock boosting up to 5.1 ghz, 28W TDP, FP7, FP7r2, FP8 socket.
The AMD Ryzen 7 7840U is part of AMD's Ryzen 7000 Series lineup (Phoenix), built for desktop systems. It offers 8C/16T with a 3.3 GHz base clock boosting up to 5.1 ghz, backed by 16 MB of L3 cache, within a 28W TDP on the FP7, FP7r2, FP8 platform, with AMD Radeon 780M integrated graphics.
Performance and Architecture
With 8C/16T, the AMD Ryzen 7 7840U runs at 3.3 GHz base clock boosting up to 5.1 ghz. Cache totals 8 MB L2 and 16 MB L3. Its AMD Radeon 780M integrated graphics (12 cores) handle display output and light graphics work without a discrete GPU.
Platform and Compatibility
The AMD Ryzen 7 7840U uses the FP7, FP7r2, FP8 platform in a 28W envelope. It supports DDR5 (FP7r2) , LPDDR5X (FP7-FP8) memory across 2 channels.
Comparison to Alternatives
Within the Ryzen 7000 Series lineup in this catalog, the AMD Ryzen 7 7840U is positioned by its core/thread count and TDP relative to other Ryzen parts. Buyers comparing options in this class should weigh core count and clock speed against platform cost and intended workload.
Specifications
Identity
| Product Line | Ryzen 7 |
|---|---|
| Model Number | 7840U |
| Codename | Phoenix |
| Release Year | 2023 |
Segment and platform
| Market Segment | Laptop |
|---|---|
| Socket | FP7, FP7r2, FP8 |
| 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 | 3.3 GHz |
|---|---|
| P-Core Boost Clock | 5.1 GHz |
| Unlocked Multiplier | No |
Cache
| L2 Cache | 8 MB |
|---|---|
| L3 Cache | 16 MB |
Power and thermal
| Base Power | 28 W |
|---|---|
| Max Turbo Power | 30 W |
| Configurable TDP Floor | 15 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 |
|---|---|
| PCIe Generation | PCIe 4.0 |
| Form Factor | Laptop |
|---|---|
| iGPU | AMD Radeon 780M (12 cores, up to 2700 MHz) |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Best for
- Mainstream desktop builds
- Everyday productivity
- Value-focused upgrades
Not for
- Extreme overclocking (unless K/X-series)
- Workstation-class multi-threaded workloads
- SFF builds without adequate cooling
FAQs
What are the key specifications of the AMD Ryzen 7 7840U?
The AMD Ryzen 7 7840U is a processor from AMD. Key specs: Cores 8, Threads 16, Base Clock 3.3 GHz, Boost Clock Up to 5.1 GHz, L2 Cache 8.
Will the AMD Ryzen 7 7840U work with my current setup?
The AMD Ryzen 7 7840U lists Socket is FP7, FP7r2, FP8. 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 7840U best suited to?
It suits mainstream desktop builds, everyday productivity, value-focused upgrades.
What are the drawbacks of the AMD Ryzen 7 7840U?
It is a poor fit for extreme overclocking (unless k/x-series), workstation-class multi-threaded workloads, sff builds without adequate cooling.