AMD Ryzen 9 7945HX3D vs AMD Ryzen 9 7940HS
77
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64
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Compared 2 processors: AMD Ryzen 9 7945HX3D, vs AMD Ryzen 9 7940HS. 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 | 201.1 GOps/s | 103.4 GOps/s |
| Floating-Point Math | 122.5 GOps/s | 63.1 GOps/s |
| Prime Number Search | 450 M primes/s | 92 M primes/s |
| Random String Sort | 83.1 M strings/s | 42.2 M strings/s |
| Data Encryption | 42.3 GB/s | 21.9 GB/s |
| Data Compression | 697.9 MB/s | 366.8 MB/s |
| Physics | 4226 frames/s | 1450 frames/s |
| Extended Instructions | 524 M matrices/s | 276 M matrices/s |
| File Compression | 1520 MB/s | 962.5 MB/s |
| Clang Compilation | 178.3 KLines/s | 101.4 KLines/s |
| HTML5 Browser | 299.6 pages/s | 211.8 pages/s |
| PDF Rendering | 456.8 MP/sec | 326.9 MP/sec |
| Text Processing | 288.5 pages/s | 260.3 pages/s |
| Background Blur | 60.1 frames/s | 53.8 frames/s |
| Photo Processing | 104.6 frames/s | 87.4 frames/s |
| Ray Tracing | 36.9 MP/sec | 22.5 MP/sec |
Blender
Performance/Watt
| Geekbench 6 Multi / W | 225.7 PPW | 215.4 PPW |
| PassMark CPU / W | 766.6 PPW | 558.4 PPW |
| Cinebench 2024 / W | 23.6 PPW | 17.9 PPW |
| Blender / W | 6.15 PPW | 4.18 PPW |
General Info
| Manufacturer | AMD | AMD |
| Announced | August, 22, 2023 | January, 4, 2023 |
| Type | Laptop use | Laptop use |
| Architecture | x86-64 | x86-64 |
| Codename | Zen 4 (Dragon Range) | Zen 4 (Phoenix) |
| Model number | 7945HX3D | n/a |
| Integrated GPU | Radeon 610M | Radeon 780M |
Processor
| Cores | 16 | 8 |
| Threads | 32 | 16 |
| Frequency | 2.3 GHz | 4.0 GHz |
| Max Frequency (Turbo) | 5.4 GHz | 5.2 GHz |
| Cores count | 16 | 8 |
| Threads count | 32 | 16 |
| Bus frequency | 100 MHz | 100 MHz |
| Multiplier | 23x | 40x |
| L1 cache | 64 KB/core | 64 KB/core |
| L2 cache | 1000 KB/core | 1000 KB/core |
| L3 Cache | 128 MB total | 16 MB total |
| Unlocked multiplier | Yes | No |
Package
| Transistor count | 17.8 billion | 25 billion |
| Process tech. | 5 nm | 4 nm |
| Power (TDP) | 55-75 W | 35-54 W |
| Socket | FL1 | FP8 |
| Critical temp. | 89 °C | 100 °C |
Memory Support
| Memory Type | DDR5-5200 | - DDR5-5600 - LPDDR5x-7500 |
| Max Size | 64 GB | 256 GB |
| Channels | 2 | 2 |
| ECC support | No | No |
Other
| PCIe Version | 5.0 | 4.0 |
| Max PCIe Lanes | 28 | 20 |
Note
AMD Ryzen 9 7940HS:
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
After analyzing the data, we consider AMD Ryzen 9 7945HX3D the clear winner in this comparison.
Survey
Total Votes: 0
