AMD Ryzen 5 8645HS vs AMD Ryzen 7 7840U
46.2Single-core48.6
31.5Multi-core36.7
65.4Efficiency73.5
88iGPU92
58.8Platform61.8
2 spec wins — AMD Ryzen 5 8645HS11 spec wins — AMD Ryzen 7 7840U
InnoReviews verdict
AMD Ryzen 7 7840U wins this laptop processor face-off, 54.5 to 50, pulling ahead mainly in efficiency (+8) and Multi-core (+5). 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
- 80% higher Max TDP: 54 W vs 30 W
- 30% higher Base clock: 4.3 GHz vs 3.3 GHz
Reasons to pick the AMD Ryzen 7 7840U
- Stronger Multi-core score: 37 vs 32
- Stronger efficiency score: 74 vs 65
- Stronger iGPU score: 92 vs 88
- Stronger platform score: 62 vs 59
- 33% higher cores: 8 vs 6
General
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840U |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 4 nm | 4 nm |
| Base TDP | 35 W | 28 W+20% |
| Max TDP | 54 W+80% | 30 W |
Cores & Clocks
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840U |
|---|---|---|
| Cores | 6 | 8+33% |
| Performance cores | 6 | 8+33% |
| Threads | 12 | 16+33% |
| Base clock | 4.3 GHz+30% | 3.3 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 7840U |
|---|---|---|
| iGPU | AMD Radeon 760M | AMD Radeon 780M |
| iGPU clock | 2,600 MHz | 2,700 MHz+4% |
Memory
| Spec | AMD Ryzen 5 8645HS | AMD Ryzen 7 7840U |
|---|---|---|
| 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 7840U |
|---|---|---|
| Geekbench 6 (single) | 2,520 | 2,580+2% |
| Geekbench 6 (multi) | 10,300 | 11,700+14% |
| Cinebench R23 (single) | 1,700 | 1,740+2% |
| Cinebench R23 (multi) | 13,000 | 14,500+12% |
| PassMark | 24,300 | 28,400+17% |
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