Ryzen 7 7800X vs Ryzen 7 7840S
Primary details
Comparing Ryzen 7 7840S and Ryzen 7 7800X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 452 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Phoenix (Zen 4, Ryzen 7040) | AMD Ryzen 7 |
| Power efficiency | 41.37 | no data |
| Architecture codename | Phoenix-HS (Zen 4) (2023) | Zen 4 |
| Release date | 5 January 2023 (1 year ago) | no data (2024 years ago) |
Detailed specifications
Ryzen 7 7840S and Ryzen 7 7800X basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 8 (Octa-Core) | 8 (Octa-Core) |
| Threads | 16 | 16 |
| Base clock speed | 3.8 GHz | 4.2 GHz |
| Boost clock speed | 5.1 GHz | 5 GHz |
| L1 cache | 512 KB | 512 KB |
| L2 cache | 8 MB | 8 MB |
| L3 cache | 16 MB | 96 MB |
| Chip lithography | 4 nm | 5 nm, 6 nm |
| Die size | 178 mm2 | 71+122 mm |
| Maximum core temperature | 100 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 7 7840S and Ryzen 7 7800X compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Socket | FP7/FP7r2/FP8 | no data |
| Power consumption (TDP) | 35 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7840S and Ryzen 7 7800X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Ryzen AI, MMX, SSE, SSE2, SSE3, SSSE3, SSE4A, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, BMI2, ABM, FMA, ADX, SMEP, SMAP, SMT, CPB, AES-NI, RDRAND, RDSEED, SHA, SME | no data |
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840S and Ryzen 7 7800X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | no data |
| Maximum memory size | no data | 128 GB |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | no data |
Pros & cons summary
| Chip lithography | 4 nm | 5 nm |
| Power consumption (TDP) | 35 Watt | 120 Watt |
Ryzen 7 7840S has a 25% more advanced lithography process, and 242.9% lower power consumption.
We couldn't decide between Ryzen 7 7840S and Ryzen 7 7800X. We've got no test results to judge.
Be aware that Ryzen 7 7840S is a notebook processor while Ryzen 7 7800X is a desktop one.
Should you still have questions on choice between Ryzen 7 7840S and Ryzen 7 7800X, ask them in Comments section, and we shall answer.
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