Buy on Amazon
£470
In Stock
AvailabilityMSRP in USD: $499
Availability
MSRP in USD: $499
Availability
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Key Differences
In short — Ryzen 7 7840HS outperforms Ryzen 9 3900XT on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Ryzen 7 7840HS is 933 days newer than Ryzen 9 3900XT.
Advantages of AMD Ryzen 9 3900XT
- Can execute more multi-threaded tasks simultaneously than AMD Ryzen 7 7840HS - 24 vs 16 threads
Advantages of AMD Ryzen 7 7840HS
- Performs up to 16% better in Cyberpunk 2077 than Ryzen 9 3900XT - 96 vs 83 FPS
- Works without a dedicated GPU, while AMD Ryzen 9 3900XT doesn't have integrated graphics
Cyberpunk 2077
Resolution
1920 x 1080
Game Graphics
RT Overdrive
Ryzen 9 3900XT
Desktop • Jul 7th, 2020
FPS
83
86.45833333333334%
Value, £/FPS
£5.66/FPS
100%
Price, £
£470
100%
Value Winner
AMD Ryzen™ 9 3900XT Processor (12C/24T, 70MB Cache, Up to 4.7 GHz Max Boost) – Without Cooler
Buy for £470 on Amazon
In Stock
Updated 58287 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
RT Overdrive
Ryzen 9 3900XT
Desktop • Jul 7th, 2020
Ryzen 7 7840HS
Mobile • Jan 26th, 2023
Geekbench 5 Benchmarks
Ryzen 9 3900XT
Desktop • Jul 7th, 2020
Single-Core
1729
72.4036850921273%
Multi-Core
10030
89.63360142984807%
AMD Ryzen 9 3900XT | vs | AMD Ryzen 7 7840HS |
|---|---|---|
| Jul 7th, 2020 | Release Date | Jan 26th, 2023 |
| Ryzen 9 | Collection | Ryzen 7 |
| Matisse | Codename | Not Available |
| AMD Socket AM4 | Socket | AMD Socket FP8 |
Desktop | Segment | Mobile |
12 | Cores | 8 |
24 | Threads | 16 |
| 3.8 GHz | Base Clock Speed | 3.8 GHz |
| 4.7 GHz | Turbo Clock Speed | 5.1 GHz |
| 105 W | TDP | Not Available |
| 7 nm | Process Size | 4 nm |
39.0x | Multiplier | 38.0x |
| None | Integrated Graphics | Radeon 780M |
Yes | Overclockable | No |
Builds Using Ryzen 9 3900XT or Ryzen 7 7840HS
Cyberpunk 2077, 1920 x 1080, RT Overdrive
9 FPS
£135.26/FPS
GeForce RTX 4060 Mobile
Ryzen 7 7840HS
16 GB, 512 GB SSD
Buy on Amazon
£1,217.36
In Stock
9 FPS
£151/FPS
GeForce RTX 4060 Mobile
Ryzen 7 7840HS
32 GB, N/A Storage
Buy on Amazon
£1,359
In Stock
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