AMD Ryzen 7 7840U vs AMD Ryzen 7 8840U
57.4Single-core62.9
45Multi-core44.2
73.5Efficiencyspec-based73.5
69.7iGPU69.7
61.8Platformspec-based55.5
4 spec wins — AMD Ryzen 7 7840U0 spec wins — AMD Ryzen 7 8840U
InnoReviews verdict
This one is close to a dead heat: AMD Ryzen 7 7840U scores 57.4 against 57.5 for AMD Ryzen 7 8840U. Pick by the categories that matter to you — AMD Ryzen 7 8840U edges ahead in single-core, or by price.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 7 7840U
- 167% higher Max memory: 256 GB vs 96 GB
Reasons to pick the AMD Ryzen 7 8840U
- Stronger single-core score: 63 vs 57
General
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 7 8840U |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 4 nm | 4 nm |
| Base TDP | 28 W | 28 W |
| Max TDP | 30 W | 30 W |
Cores & Clocks
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 7 8840U |
|---|---|---|
| Cores | 8 | 8 |
| Performance cores | 8 | 8 |
| Threads | 16 | 16 |
| Base clock | 3.3 GHz | 3.3 GHz |
| Boost clock | 5.1 GHz | 5.1 GHz |
| L3 cache | 16 MB | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 7 8840U |
|---|---|---|
| iGPU | AMD Radeon 780M | AMD Radeon 780M |
| iGPU clock | 2,700 MHz | 2,700 MHz |
Memory
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 7 8840U |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | DDR5-5600 / LPDDR5X-7500 |
| Max memory | 256 GB+167% | 96 GB |
Benchmarks
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 7 8840U |
|---|---|---|
| Geekbench 6 (single) | 2,394Bottom 27% | — |
| Geekbench 6 (multi) | 10,584Bottom 40% | — |
| Cinebench R23 (single) | 1,678+4%Bottom 34% | 1,619Bottom 29% |
| Cinebench R23 (multi) | 12,719+4%Bottom 46% | 12,191Bottom 44% |
| PassMark | 24,388+4%Top 43% | 23,390Top 47% |
| PassMark (single thread) | 3,538Bottom 40% | 3,538Bottom 40% |
| 3DMark Time Spy Graphics (iGPU) | 2,808Top 24% | 2,808Top 24% |
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