AMD Ryzen 5 8640HS vs AMD Ryzen 7 7840HS
55
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Compared 2 processors: AMD Ryzen 5 8640HS, vs AMD Ryzen 7 7840HS. Below are specs, tests, pros and cons for each device
Review
Single-Thread Perf.
Single-Core Benchmark Score
Multi-Thread Perf.
Multi-Core Benchmark Score
Energy Efficiency
Chip Power Efficiency
Integrated Graphics
iGPU Performance in Games & 3D
Tests & specs
Specs & test comparisonBenchmarks
| Integer Math | 67.9 GOps/s | 99.4 GOps/s |
| Floating-Point Math | 39.6 GOps/s | 60.4 GOps/s |
| Prime Number Search | 70 M primes/s | 89 M primes/s |
| Random String Sort | 27.3 M strings/s | 40.3 M strings/s |
| Data Encryption | 13.6 GB/s | 20.8 GB/s |
| Data Compression | 226.8 MB/s | 348.1 MB/s |
| Physics | 984 frames/s | 1385 frames/s |
| Extended Instructions | 159 M matrices/s | 259 M matrices/s |
| File Compression | 928.4 MB/s | 1120 MB/s |
| Clang Compilation | 53.5 KLines/s | 102.5 KLines/s |
| HTML5 Browser | 169.7 pages/s | 217.2 pages/s |
| PDF Rendering | 200 MP/sec | 350 MP/sec |
| Text Processing | 237.7 pages/s | 251.8 pages/s |
| Background Blur | 37.6 frames/s | 59.4 frames/s |
| Photo Processing | 72.3 frames/s | 87.6 frames/s |
| Ray Tracing | 11.2 MP/sec | 22.5 MP/sec |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 262.2 PPW | 223.8 PPW |
| PassMark CPU / W | 663.8 PPW | 533.5 PPW |
| Cinebench 2024 / W | n/a | 17.5 PPW |
| Blender / W | n/a | 4.05 PPW |
General Info
| Manufacturer | AMD | AMD |
| Announced | December, 6, 2023 | January, 4, 2023 |
| Type | Laptop use | Laptop use |
| Architecture | x86-64 | x86-64 |
| Codename | Zen 4 (Hawk Point) | Zen 4 (Phoenix) |
| Integrated GPU | Radeon 760M | Radeon 780M |
Processor
| Cores | 6 | 8 |
| Threads | 12 | 16 |
| Frequency | 3.5 GHz | 3.8 GHz |
| Max Frequency (Turbo) | 4.9 GHz | 5.1 GHz |
| Cores count | 6 | 8 |
| Threads count | 12 | 16 |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 35x | 38x |
| L1 cache | 64 KB/core | 64 KB/core |
| L2 cache | 1000 KB/core | 1000 KB/core |
| L3 Cache | 16 MB total | 16 MB total |
| Unlocked multiplier | No | No |
Package
| Transistor count | 25 billion | 25 billion |
| Process tech. | 4 nm | 4 nm |
| Power (TDP) | 20-30 W | 35-54 W |
| Socket | FP8 | FP8 |
| Critical temp. | 100 °C | 100 °C |
Memory Support
| Memory Type | - DDR5-5600 - LPDDR5x-7500 |
- DDR5-5600 - LPDDR5x-7500 |
| Max Size | 256 GB | 256 GB |
| Channels | 2 | 2 |
| ECC support | No | Yes |
Other
| PCIe Version | 4.0 | 4.0 |
| Max PCIe Lanes | 20 | 20 |
Note
AMD Ryzen 7 7840HS:
DDR5 memory is supported only on the FP7r2 socket, while FP7 and FP8 sockets support LPDDR5/x. ECC support is available exclusively on the FP7r2 socket.
Results
No clear favorite identified yet; updates may follow as new data arrives.
Survey
Total Votes: 0
