Ryzen 9 7945HX vs i7-7740K
Primary details
Comparing Core i7-7740K and Ryzen 9 7945HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 110 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Power efficiency | no data | 59.24 |
| Architecture codename | Kaby Lake-X (2017) | Dragon Range-HX (Zen 4) (2023−2024) |
| Release date | no data (2024 years ago) | 4 January 2023 (1 year ago) |
Detailed specifications
Core i7-7740K and Ryzen 9 7945HX 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 | 4 (Quad-Core) | 16 (Hexadeca-Core) |
| Threads | no data | 32 |
| Base clock speed | no data | 2.5 GHz |
| Boost clock speed | 4.3 GHz | 5.4 GHz |
| L1 cache | 64 KB (per core) | 64K (per core) |
| L2 cache | 256 KB (per core) | 1 MB (per core) |
| L3 cache | 8192 KB (shared) | 64 MB (shared) |
| Chip lithography | 14 nm | CCD = 5 nm, I/O = 6 nm |
| Die size | no data | 2x 71 mm2 |
| Maximum core temperature | no data | 100 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 13,140 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | + | + |
Compatibility
Information on Core i7-7740K and Ryzen 9 7945HX 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 | 1151 | FL1 |
| Power consumption (TDP) | 112 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-7740K and Ryzen 9 7945HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 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 |
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | no data |
| TSX | + | - |
| Precision Boost 2 | no data | + |
Security technologies
Core i7-7740K and Ryzen 9 7945HX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-7740K and Ryzen 9 7945HX are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-7740K and Ryzen 9 7945HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | HD 630 | AMD Radeon 610M |
Peripherals
Specifications and connection of peripherals supported by Core i7-7740K and Ryzen 9 7945HX.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 28 |
Pros & cons summary
| Physical cores | 4 | 16 |
| Power consumption (TDP) | 112 Watt | 55 Watt |
Ryzen 9 7945HX has 300% more physical cores, and 103.6% lower power consumption.
We couldn't decide between Core i7-7740K and Ryzen 9 7945HX. We've got no test results to judge.
Note that Core i7-7740K is a desktop processor while Ryzen 9 7945HX is a notebook one.
Should you still have questions on choice between Core i7-7740K and Ryzen 9 7945HX, ask them in Comments section, and we shall answer.
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