AMD Ryzen 7 7840U vs AMD Ryzen 9 8945HS
48.6Single-core53
36.7Multi-core42.8
74.2Efficiency66
92iGPU96
62.2Platform62.2
1 spec wins — AMD Ryzen 7 7840U9 spec wins — AMD Ryzen 9 8945HS
InnoReviews verdict
AMD Ryzen 9 8945HS wins this laptop processor face-off, 57.1 to 54.7, pulling ahead mainly in Multi-core (+6) and Single-core (+4). AMD Ryzen 7 7840U still makes sense if its price or standout specs fit your needs better.
Key differences
Reasons to pick the AMD Ryzen 7 7840U
- Stronger efficiency score: 74 vs 66
- 20% lower Base TDP: 28 W vs 35 W
Reasons to pick the AMD Ryzen 9 8945HS
- Stronger Single-core score: 53 vs 49
- Stronger Multi-core score: 43 vs 37
- Stronger iGPU score: 96 vs 92
- 80% higher Max TDP: 54 W vs 30 W
- 21% higher Base clock: 4 GHz vs 3.3 GHz
General
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 9 8945HS |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 4 nm | 4 nm |
| Base TDP | 28 W+20% | 35 W |
| Max TDP | 30 W | 54 W+80% |
Cores & Clocks
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 9 8945HS |
|---|---|---|
| Cores | 8 | 8 |
| Performance cores | 8 | 8 |
| Threads | 16 | 16 |
| Base clock | 3.3 GHz | 4 GHz+21% |
| Boost clock | 5.1 GHz | 5.2 GHz+2% |
| L3 cache | 16 MB | 16 MB |
Integrated GPU
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 9 8945HS |
|---|---|---|
| iGPU | AMD Radeon 780M | AMD Radeon 780M |
| iGPU clock | 2,700 MHz | 2,800 MHz+4% |
Memory
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 9 8945HS |
|---|---|---|
| Memory support | LPDDR5X-7500 / DDR5-5600 | LPDDR5X-7500 / DDR5-5600 |
| Max memory | 256 GB | 256 GB |
Benchmarks
| Spec | AMD Ryzen 7 7840U | AMD Ryzen 9 8945HS |
|---|---|---|
| Geekbench 6 (single) | 2,580 | 2,700+5% |
| Geekbench 6 (multi) | 11,700 | 13,100+12% |
| Cinebench R23 (single) | 1,740 | 1,810+4% |
| Cinebench R23 (multi) | 14,500 | 17,300+19% |
| PassMark | 28,400 | 32,000+13% |
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