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AMD Ryzen 7 7840U vs AMD Ryzen 7 8840HX: Comparison
AMD Ryzen 7 7840U and AMD Ryzen 7 8840HX separate most on l2 cache: AMD Ryzen 7 7840U at 8 MB, AMD Ryzen 7 8840HX at 4 MB, 50% in favour of AMD Ryzen 7 7840U. They match on 11 other specifications, including form factor, market segment and performance cores.
Specs
| Specification |  |  |
|---|---|---|
| Product Line | Ryzen 7 | Ryzen |
| Form Factor | Laptop | Laptop |
| Model Number | 7840U | 7 8840HX |
| Codename | Phoenix | Dragon Range |
| Release Year | 2023 | 2025 |
| iGPU | AMD Radeon 780M (12 cores, up to 2700 MHz) | AMD Radeon 610M Graphics (RDNA 2) |
| Market Segment | Laptop | Laptop |
| Socket | BGA | BGA (soldered, mobile) |
| Process Node | 4 nm | 5 nm |
| Performance Cores | 8 | 8 |
| Efficiency Cores | 0 | 0 |
| SMT Enabled | true | true |
| P-Core Base Clock | 3.3 | 2.9 |
| P-Core Boost Clock | 5.1 | 5.2 |
| Unlocked Multiplier | false | true |
| L2 Cache | 8 MB | 4 MB-50% |
| L3 Cache | 16 MB | 16 MB |
| Base Power | 28 W | 55 W |
| Max Turbo Power | 30 | 75 |
| Memory Type | DDR5 or LPDDR5X | DDR5 |
| Max Memory Speed | 7500 | 5600 |
| Memory Channels | 2 | 2 |
| Integrated Graphics | Yes | Yes |
| iGPU Model | AMD Radeon 780M | AMD Radeon 610M |
| iGPU Compute Units | 12 | 2 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| Cores | 8 | 8 |
| Threads | 16 | 16 |
Verdict
AMD Ryzen 7 8840HX
8.5 / 10 Expert Rating
The AMD Ryzen 7 8840HX delivers desktop-class multi-core performance in a laptop form factor, ideal for demanding gaming and creation workloads.