AMD Ryzen 7 5800U vs AMD Ryzen 9 7940HX
46.5Single-core64
37.1Multi-core71.4
81.9Efficiencyspec-based40
49.7iGPU—
49.3Platformspec-based75.4
1 spec wins — AMD Ryzen 7 5800U14 spec wins — AMD Ryzen 9 7940HX
InnoReviews verdict
AMD Ryzen 9 7940HX wins this laptop processor face-off, 64.8 to 49.3, pulling ahead mainly in multi-core (+34) and single-core (+18). AMD Ryzen 7 5800U 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 7 5800U
- 73% lower Base TDP: 15 W vs 55 W
Reasons to pick the AMD Ryzen 9 7940HX
- Stronger single-core score: 64 vs 47
- Stronger multi-core score: 71 vs 37
- 300% higher L3 cache: 64 MB vs 16 MB
- 232% higher Cinebench R23 (multi): 29,400 vs 8,851
- 200% higher Max TDP: 75 W vs 25 W
General
| Spec | AMD Ryzen 7 5800U | AMD Ryzen 9 7940HX |
|---|---|---|
| Announced | 2021 | 2024 |
| Process | 7 nm | 5 nm+29% |
| Base TDP | 15 W+73% | 55 W |
| Max TDP | 25 W | 75 W+200% |
Cores & Clocks
| Spec | AMD Ryzen 7 5800U | AMD Ryzen 9 7940HX |
|---|---|---|
| Cores | 8 | 16+100% |
| Performance cores | 8 | 16+100% |
| Efficiency cores | — | 0 |
| Threads | 16 | 32+100% |
| Base clock | 1.9 GHz | 2.4 GHz+26% |
| Boost clock | 4.4 GHz | 5.2 GHz+18% |
| L3 cache | 16 MB | 64 MB+300% |
Integrated GPU
| Spec | AMD Ryzen 7 5800U | AMD Ryzen 9 7940HX |
|---|---|---|
| iGPU | AMD Radeon Vega 8 | AMD Radeon 610M |
| iGPU clock | 2,000 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 7 5800U | AMD Ryzen 9 7940HX |
|---|---|---|
| Memory support | DDR4-3200 / LPDDR4-4266 | DDR5-5200 |
| Max memory | — | 64 GB |
Benchmarks
| Spec | AMD Ryzen 7 5800U | AMD Ryzen 9 7940HX |
|---|---|---|
| Geekbench 6 (single) | 1,865Bottom 14% | 2,751+48%Top 33% |
| Geekbench 6 (multi) | 7,934Bottom 26% | 16,094+103%Top 19% |
| Cinebench R23 (single) | 1,425Bottom 20% | 1,807+27%Top 39% |
| Cinebench R23 (multi) | 8,851Bottom 32% | 29,400+232%Top 8% |
| PassMark | 17,953Bottom 43% | 52,889+195%Top 7% |
| 3DMark Time Spy Graphics (iGPU) | 1,142Bottom 39% | — |
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