Ryzen 7 7800X vs Ryzen 9 7945HX
Primary details
Comparing Ryzen 9 7945HX and Ryzen 7 7800X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 105 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | no data | AMD Ryzen 7 |
| Architecture codename | Dragon Range-HX (Zen 4) (2023−2024) | Zen 4 |
| Release date | 4 January 2023 (1 year ago) | no data |
Detailed specifications
Ryzen 9 7945HX 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 | 16 (Hexadeca-Core) | 8 (Octa-Core) |
| Threads | 32 | 16 |
| Base clock speed | 2.5 GHz | 4.2 GHz |
| Boost clock speed | 5.4 GHz | 5 GHz |
| L1 cache | 64K (per core) | 512 KB |
| L2 cache | 1 MB (per core) | 8 MB |
| L3 cache | 64 MB (shared) | 96 MB |
| Chip lithography | CCD = 5 nm, I/O = 6 nm | 5 nm, 6 nm |
| Die size | 2x 71 mm2 | 71+122 mm |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 13,140 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | + |
Compatibility
Information on Ryzen 9 7945HX 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.
| Number of CPUs in a configuration | 1 | no data |
| Socket | FL1 | no data |
| Power consumption (TDP) | 55 Watt | 120 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 7945HX and Ryzen 7 7800X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | 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 | + | - |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 7945HX and Ryzen 7 7800X are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 7945HX 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 610M | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen 9 7945HX and Ryzen 7 7800X.
| PCIe version | 5.0 | no data |
| PCI Express lanes | 28 | no data |
Pros & cons summary
| Physical cores | 16 | 8 |
| Threads | 32 | 16 |
| Power consumption (TDP) | 55 Watt | 120 Watt |
Ryzen 9 7945HX has 100% more physical cores and 100% more threads, and 118.2% lower power consumption.
We couldn't decide between Ryzen 9 7945HX and Ryzen 7 7800X. We've got no test results to judge.
Be aware that Ryzen 9 7945HX is a notebook processor while Ryzen 7 7800X is a desktop one.
Should you still have questions on choice between Ryzen 9 7945HX and Ryzen 7 7800X, ask them in Comments section, and we shall answer.
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