AMD Ryzen 7 7840H vs AMD Ryzen 5 7645HX
Comparative analysis of AMD Ryzen 7 7840H and AMD Ryzen 5 7645HX processors for all known characteristics in the following categories: Essentials, Performance, Memory, Compatibility, Peripherals. Benchmark processor performance analysis: PassMark - Single thread mark, PassMark - CPU mark.
Differences
Reasons to consider the AMD Ryzen 7 7840H
- 2 more cores, run more applications at once: 8 vs 6
- 4 more threads: 16 vs 12
- Around 2% higher clock speed: 5.1 GHz vs 5 GHz
- A newer manufacturing process allows for a more powerful, yet cooler running processor: 4 nm vs 5 nm
- Around 33% more L1 cache; more data can be stored in the L1 cache for quick access later
- Around 33% more L2 cache; more data can be stored in the L2 cache for quick access later
- Around 29% lower typical power consumption: 35 Watt vs 45 Watt
- Around 6% better performance in PassMark - CPU mark: 28390 vs 26868
Specifications (specs) | |
Number of cores | 8 vs 6 |
Number of threads | 16 vs 12 |
Maximum frequency | 5.1 GHz vs 5 GHz |
Manufacturing process technology | 4 nm vs 5 nm |
L1 cache | 64K (per core) vs 64K (per core) |
L2 cache | 1MB (per core) vs 1MB (per core) |
Thermal Design Power (TDP) | 35 Watt vs 45 Watt |
Benchmarks | |
PassMark - CPU mark | 28390 vs 26868 |
Reasons to consider the AMD Ryzen 5 7645HX
- 2x more L3 cache, more data can be stored in the L3 cache for quick access later
- Around 5% better performance in PassMark - Single thread mark: 3915 vs 3720
Specifications (specs) | |
L3 cache | 32MB (shared) vs 16MB (shared) |
Benchmarks | |
PassMark - Single thread mark | 3915 vs 3720 |
Compare benchmarks
CPU 1: AMD Ryzen 7 7840H
CPU 2: AMD Ryzen 5 7645HX
PassMark - Single thread mark |
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PassMark - CPU mark |
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Name | AMD Ryzen 7 7840H | AMD Ryzen 5 7645HX |
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PassMark - Single thread mark | 3720 | 3915 |
PassMark - CPU mark | 28390 | 26868 |
Compare specifications (specs)
AMD Ryzen 7 7840H | AMD Ryzen 5 7645HX | |
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Essentials |
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Launch date | Jan 2023 | 4 Jan 2023 |
Place in performance rating | 233 | 200 |
Performance |
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Base frequency | 3.8 GHz | 4 GHz |
Die size | 178 mm² | 71 mm² |
L1 cache | 64K (per core) | 64K (per core) |
L2 cache | 1MB (per core) | 1MB (per core) |
L3 cache | 16MB (shared) | 32MB (shared) |
Manufacturing process technology | 4 nm | 5 nm |
Maximum core temperature | 100°C | 100°C |
Maximum frequency | 5.1 GHz | 5 GHz |
Number of cores | 8 | 6 |
Number of threads | 16 | 12 |
Transistor count | 25,000 million | 6,570 million |
Unlocked | ||
Memory |
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ECC memory support | ||
Supported memory types | DDR5-5600 MHz, Dual-channel | DDR5-5200 MHz, Dual-channel |
Compatibility |
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Configurable TDP | 35-54 Watt | 75 Watt |
Max number of CPUs in a configuration | 1 | 1 |
Sockets supported | FP8 | FL1 |
Thermal Design Power (TDP) | 35 Watt | 45 Watt |
Peripherals |
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PCIe configurations | Gen 4, 20 Lanes, (CPU only) | Gen 5, 28 Lanes, (CPU only) |