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AMD Ryzen 7 8840HX vs AMD Ryzen 7 8840U: Comparison
AMD Ryzen 7 8840HX and AMD Ryzen 7 8840U separate most on l2 cache: AMD Ryzen 7 8840HX at 4 MB, AMD Ryzen 7 8840U at 8 MB, 50% in favour of AMD Ryzen 7 8840U. PCIe Lanes splits them by another 20%, again favouring AMD Ryzen 7 8840U. They match on 15 other specifications, including product line, form factor and market segment.
Specs
| Specification |  | |
|---|---|---|
| Brand | AMD | AMD |
| Product Line | Ryzen | Ryzen |
| Form Factor | Laptop | Laptop |
| Model Number | 7 8840HX | 7 8840U |
| Codename | Dragon Range | Hawk Point |
| Release Year | 2025 | 2024 |
| TDP | 55 W | 15 W |
| iGPU | AMD Radeon 610M Graphics (RDNA 2) | AMD Radeon 740M/760M/780M Graphics (RDNA 3) |
| Market Segment | Laptop | Laptop |
| Socket | BGA (soldered, mobile) | BGA (soldered, mobile) |
| Socket Status | Mature | Mature |
| Process Node | 5 nm | 4 nm |
| Performance Cores | 8 | 4 |
| Efficiency Cores | 0 | 4 |
| SMT Enabled | true | true |
| P-Core Base Clock | 2.9 | 1.7 |
| P-Core Boost Clock | 5.2 | 4.9 |
| L2 Cache | 4 MB-50% | 8 MB |
| L3 Cache | 16 MB | 16 MB |
| Base Power | 55 W | 15 W |
| Max Turbo Power | 75 | 30 |
| Memory Type | DDR5 | DDR5 or LPDDR5X |
| Max Memory Speed | 5600 | 5600 |
| Memory Channels | 2 | 2 |
| Max Memory Capacity | 256 | 64 |
| ECC Support | false | false |
| Integrated Graphics | Yes | Yes |
| iGPU Model | AMD Radeon 610M | AMD Radeon 780M |
| iGPU Compute Units | 2 | 12 |
| PCIe Generation | PCIe 4.0 | PCIe 4.0 |
| PCIe Lanes | 16-20% | 20 |
| Retail Availability | Soldered Only | Soldered Only |
| Cores | 8 | 8 |
| Threads | 16 | 16 |
| Architecture | Zen 4 (Dragon Range) | Zen 4 (Phoenix/Hawk Point) |
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.
AMD Ryzen 7 8840U
7.8 / 10 Expert Rating
The AMD Ryzen 7 8840U is a well-balanced ultraportable chip that prioritizes battery life and everyday responsiveness.