Steam Deck CPU (LCD) vs Ryzen 7 7840U
Primary details
Comparing Ryzen 7 7840U and Steam Deck CPU (LCD) processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 427 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | AMD Phoenix (Zen 4, Ryzen 7040) | no data |
| Power efficiency | 53.17 | no data |
| Architecture codename | Phoenix-U (Zen 4) (2023) | Van Gogh (2022−2023) |
| Release date | May 2023 (1 year ago) | 25 February 2022 (2 years ago) |
Detailed specifications
Ryzen 7 7840U and Steam Deck CPU (LCD) 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) | 4 (Quad-Core) |
| Threads | 16 | 8 |
| Base clock speed | 3.3 GHz | 2.4 GHz |
| Boost clock speed | 5.1 GHz | 3.5 GHz |
| L1 cache | 64K (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 16 MB (shared) | 4 MB (shared) |
| Chip lithography | 4 nm | 7 nm |
| Die size | 178 mm2 | 163 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 25,000 million | 2,400 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Ryzen 7 7840U and Steam Deck CPU (LCD) 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.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FP8 | AMD BGA ST1 |
| Power consumption (TDP) | 28 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 7 7840U and Steam Deck CPU (LCD). You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 7 7840U and Steam Deck CPU (LCD) are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 7 7840U and Steam Deck CPU (LCD). Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-5600 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | AMD Radeon 780M | Radeon Navi II 8CU |
Peripherals
Specifications and connection of peripherals supported by Ryzen 7 7840U and Steam Deck CPU (LCD).
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 20 | 8 |
Pros & cons summary
| Physical cores | 8 | 4 |
| Threads | 16 | 8 |
| Chip lithography | 4 nm | 7 nm |
| Power consumption (TDP) | 28 Watt | 15 Watt |
Ryzen 7 7840U has 100% more physical cores and 100% more threads, and a 75% more advanced lithography process.
Steam Deck CPU (LCD), on the other hand, has 86.7% lower power consumption.
We couldn't decide between Ryzen 7 7840U and Steam Deck CPU (LCD). We've got no test results to judge.
Should you still have questions on choice between Ryzen 7 7840U and Steam Deck CPU (LCD), ask them in Comments section, and we shall answer.
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