AMD Ryzen 7 7840HS vs Ryzen 7 7745HX
We compared two 8-core laptop CPUs: the 3.8 GHz AMD Ryzen 7 7840HS against the 3.6 GHz Ryzen 7 7745HX. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.
Review
Single-Core Performance
Performance in single-threaded apps and benchmarks
Multi-Core Performance
Measure performance when all cores are involved
Power Efficiency
The efficiency score of power consumption
Integrated Graphics
iGPU capabilities for gaming and 3D-intensive tasks
NanoReview Final Score
Generic CPU rating
Key Differences
Advantages of AMD Ryzen 7 7840HS
- Supports up to 256 GB DDR5-5600 RAM
- More modern manufacturing process – 4 versus 5 nanometers
Advantages of AMD Ryzen 7 7745HX
- Has 16384 KB larger L3 cache size
- Unlocked multiplier
- Newer PCI Express version – 5.0
- 19% faster in a single-core Geekbench v6 test - 2649 vs 2225 points
Promotion
Test in Benchmarks
Comparing the performance of CPUs across various tasksCinebench R23
Cinebench R23 (Single-Core)
Cinebench R23 (Multi-Core)
GeekBench v6
Geekbench 6 (Single-Core)
Geekbench 6 (Multi-Core)
| File compression | 1170 MB/sec | 1410 MB/sec |
| Clang compilation | 97.3 Klines/sec | 114.7 Klines/sec |
| HTML 5 Browser | 236.7 pages/sec | 255.1 pages/sec |
| PDF Renderer | 363 Mpixels/sec | 408.8 Mpixels/sec |
| Text processing | 242.3 pages/sec | 275.9 pages/sec |
| Background blur | 57.1 images/sec | 44.9 images/sec |
| Photo processing | 98.8 images/sec | 92.1 images/sec |
| Ray tracing | 21.5 Mpixels/sec | 25.5 Mpixels/sec |
PassMark
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
| Integer math | 102.1 GOps/sec | 106.9 GOps/sec |
| Floating point math | 62.5 GOps/sec | 63.6 GOps/sec |
| Find prime numbers | 86M Primes/sec | 155M Primes/sec |
| Random string sorting | 41.6M Strings/sec | 46.4M Strings/sec |
| Data encryption | 21.5 GBytes/sec | 23.5 GBytes/sec |
| Data compression | 360.8 MBytes/sec | 393.8 MBytes/sec |
| Physics | 1350 Frames/sec | 1640 Frames/sec |
| Extended instructions | 27B Matrices/sec | 29.8B Matrices/sec |
Specifications
Full technical specification of AMD Ryzen 7 7840HS and Ryzen 7 7745HXGeneral
| Vendor | AMD | AMD |
| Released | January 4, 2023 | January 4, 2023 |
| Type | Laptop | Laptop |
| instruction set | x86-64 | x86-64 |
| Codename | Zen 4 (Phoenix) | Zen 4 (Dragon Range) |
| Integrated GPU | Radeon 780M | Radeon 610M |
CPU
| P-Cores | 8 | 8 |
| P-Threads | 16 | 16 |
| Base Frequency (P) | 3.8 GHz | 3.6 GHz |
| Turbo Boost Frequency (P) | 5.1 GHz | 5.1 GHz |
| Total Cores | 8 | 8 |
| Total Threads | 16 | 16 |
| Bus Frequency | 100 MHz | 100 MHz |
| Multiplier | 38x | 36x |
| L1 Cache | 64K (per core) | 64K (per core) |
| L2 Cache | 1MB (per core) | 1MB (per core) |
| L3 Cache | 16MB (shared) | 32MB (shared) |
| Unlocked Multiplier | No | Yes |
Package
| Transistors | 25 billions | 13.1 billions |
| Fabrication process | 4 nm | 5 nm |
| TDP (PL1) | 35-54 W (configurable) | 45-75 W (configurable) |
| Socket | FP8 | FL1 |
| Peak temperature | 100°C | 100°C |
iGPU
| Integrated Graphics | Radeon 780M | Radeon 610M |
| GPU Base Clock | 1500 MHz | 1500 MHz |
| GPU Boost Clock | 2700 MHz | 2200 MHz |
| Shading Units | 768 | 128 |
| TMUs | 48 | 8 |
| ROPs | 32 | 4 |
| Execution Units | 12 | 2 |
| TGP | 15 W | 15 W |
| Max. Resolution | 7680x4320 - 60 Hz | - |
iGPU FLOPS
Memory Support
| Memory types | - DDR5-5600 - LPDDR5x-7500 |
- DDR5-5200 |
| Memory Size | 256 GB | 64 GB |
| Max. Memory Channels | 2 | 2 |
| ECC Support | Yes | No |
Misc
| Official site | AMD Ryzen 7 7840HS official page | AMD Ryzen 7 7745HX official page |
| PCI Express Version | 4.0 | 5.0 |
| PCI Express Lanes | 20 | 28 |
Cast your vote
Total votes: 80
