AMD Ryzen 5 8645HS vs AMD Ryzen 7 7840HS
59.3Single-core61.5
44.1Multi-core51.2
65.4Efficiencyspec-based65.4
64.9iGPU68.5
58.8Platformspec-based61.8
1 spec wins — AMD Ryzen 5 8645HS10 spec wins — AMD Ryzen 7 7840HS
InnoReviews verdict
AMD Ryzen 7 7840HS wins this laptop processor face-off, 59.2 to 55.4, pulling ahead mainly in multi-core (+7) and iGPU (+4). AMD Ryzen 5 8645HS still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the AMD Ryzen 5 8645HS
- 13% higher Base clock: 4.3 GHz vs 3.8 GHz
Reasons to pick the AMD Ryzen 7 7840HS
- Stronger multi-core score: 51 vs 44
- Stronger iGPU score: 69 vs 65
- 33% higher cores: 8 vs 6
- 33% higher Performance cores: 8 vs 6
- 33% higher threads: 16 vs 12
General
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840HS |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 4 nm | 4 nm |
| Base TDP | 35 W | 35 W |
| Max TDP | 54 W | 54 W |
Cores & Clocks
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840HS |
|---|---|---|
| Cores | 6 | 8+33% |
| Performance cores | 6 | 8+33% |
| Threads | 12 | 16+33% |
| Base clock | 4.3 GHz+13% | 3.8 GHz |
| Boost clock | 5 GHz | 5.1 GHz+2% |
| L3 cache | 16 MB | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840HS |
|---|---|---|
| iGPU | AMD Radeon 760M | AMD Radeon 780M |
| iGPU clock | 2,600 MHz | 2,700 MHz |
Memory
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840HS |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | LPDDR5X-7500 / DDR5-5600 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840HS |
|---|---|---|
| Geekbench 6 (single) | 2,520Bottom 49% | 2,610+4%Top 43% |
| Geekbench 6 (multi) | 10,300Bottom 41% | 12,600+22%Top 41% |
| Cinebench R23 (single) | 1,700Bottom 45% | 1,760+4%Top 46% |
| Cinebench R23 (multi) | 13,000Top 49% | 16,600+28%Top 32% |
| PassMark | 21,977Top 47% | 28,241+29%Top 26% |
| 3DMark Time Spy Graphics (iGPU) | 2,260Top 33% | 2,659+18%Top 23% |
Related comparisons
AMD Ryzen 5 8645HSvs AMD Ryzen 7 260VSAMD Ryzen 5 8645HSvs Intel Core Ultra 5 125HVSAMD Ryzen 5 8645HSvs Qualcomm Snapdragon X Elite X1E-78-100VSAMD Ryzen 5 8645HSvs Qualcomm Snapdragon X Elite X1E-80-100VSAMD Ryzen 7 7840HSvs Apple M2 Max (12-core)VSAMD Ryzen 7 7840HSvs AMD Ryzen 7 7840UVSAMD Ryzen 7 7840HSvs Qualcomm Snapdragon X Elite X1E-84-100VSAMD Ryzen 7 7840HSvs AMD Ryzen 7 8845HSVS