AMD Ryzen 7 8840U vs AMD Ryzen 9 7945HX
62.9Single-core69.9
44.2Multi-core76.1
73.5Efficiencyspec-based40
68.5iGPU32.6
55.5Platformspec-based75.4
5 spec wins — AMD Ryzen 7 8840U9 spec wins — AMD Ryzen 9 7945HX
InnoReviews verdict
AMD Ryzen 9 7945HX wins this laptop processor face-off, 64.7 to 57.4, pulling ahead mainly in multi-core (+32) and single-core (+7). AMD Ryzen 7 8840U 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 8840U
- Stronger iGPU score: 69 vs 33
- 404% higher 3DMark Time Spy Graphics (iGPU): 2,659 vs 528
- 50% higher Max memory: 96 GB vs 64 GB
- 49% lower Base TDP: 28 W vs 55 W
- 32% higher Base clock: 3.3 GHz vs 2.5 GHz
Reasons to pick the AMD Ryzen 9 7945HX
- Stronger single-core score: 70 vs 63
- Stronger multi-core score: 76 vs 44
- 300% higher L3 cache: 64 MB vs 16 MB
- 180% higher Cinebench R23 (multi): 34,100 vs 12,191
- 150% higher Max TDP: 75 W vs 30 W
General
| Spec | AMD Ryzen 7 8840U | AMD Ryzen 9 7945HX |
|---|---|---|
| Announced | 2023 | 2023 |
| Process | 4 nm+20% | 5 nm |
| Base TDP | 28 W+49% | 55 W |
| Max TDP | 30 W | 75 W+150% |
Cores & Clocks
| Spec | AMD Ryzen 7 8840U | AMD Ryzen 9 7945HX |
|---|---|---|
| Cores | 8 | 16+100% |
| Performance cores | 8 | 16+100% |
| Threads | 16 | 32+100% |
| Base clock | 3.3 GHz+32% | 2.5 GHz |
| Boost clock | 5.1 GHz | 5.4 GHz+6% |
| L3 cache | 16 MB | 64 MB+300% |
Integrated GPU
| Spec | AMD Ryzen 7 8840U | AMD Ryzen 9 7945HX |
|---|---|---|
| iGPU | AMD Radeon 780M | AMD Radeon 610M |
| iGPU clock | 2,700 MHz | 2,200 MHz |
Memory
| Spec | AMD Ryzen 7 8840U | AMD Ryzen 9 7945HX |
|---|---|---|
| Memory support | DDR5-5600 / LPDDR5X-7500 | DDR5-5200 |
| Max memory | 96 GB+50% | 64 GB |
Benchmarks
| Spec | AMD Ryzen 7 8840U | AMD Ryzen 9 7945HX |
|---|---|---|
| Geekbench 6 (single) | — | 2,900Top 24% |
| Geekbench 6 (multi) | — | 17,200Top 17% |
| Cinebench R23 (single) | 1,619Bottom 43% | 2,030+25%Top 21% |
| Cinebench R23 (multi) | 12,191Bottom 50% | 34,100+180%Top 7% |
| PassMark | 23,390Top 40% | 53,778+130%Top 7% |
| 3DMark Time Spy Graphics (iGPU) | 2,659+404%Top 22% | 528Bottom 20% |
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