Ryzen 7 7840U vs Pentium M 745
Primary details
Comparing Pentium M 745 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 425 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Pentium M | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | no data | 53.15 |
| Architecture codename | Dothan (2004−2005) | Phoenix-U (Zen 4) (2023) |
| Release date | 10 May 2004 (20 years ago) | May 2023 (1 year ago) |
Detailed specifications
Pentium M 745 and Ryzen 7 7840U 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 | 1 (Single-Core) | 8 (Octa-Core) |
| Threads | 1 | 16 |
| Base clock speed | 1.8 GHz | 3.3 GHz |
| Boost clock speed | 1.8 GHz | 5.1 GHz |
| Bus rate | 400 MHz | no data |
| L1 cache | 32 KB | 64K (per core) |
| L2 cache | 2 MB | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 90 nm | 4 nm |
| Die size | 87 mm2 | 178 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 144 million | 25,000 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| VID voltage range | 1.276V-1.34V | no data |
Compatibility
Information on Pentium M 745 and Ryzen 7 7840U 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 | H-PBGA479,PPGA478 | FP8 |
| Power consumption (TDP) | 7.5 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium M 745 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | - | no data |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium M 745 and Ryzen 7 7840U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium M 745 and Ryzen 7 7840U are enumerated here.
| AMD-V | - | + |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium M 745 and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR2 | DDR5-5600 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | AMD Radeon 780M |
Peripherals
Specifications and connection of peripherals supported by Pentium M 745 and Ryzen 7 7840U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
wPrime 32
wPrime 32M is a math multi-thread processor test, which calculates square roots of first 32 million integer numbers. Its result is measured in seconds, so that the less is benchmark result, the faster the processor.
Pros & cons summary
| Physical cores | 1 | 8 |
| Threads | 1 | 16 |
| Chip lithography | 90 nm | 4 nm |
| Power consumption (TDP) | 7 Watt | 28 Watt |
Pentium M 745 has 300% lower power consumption.
Ryzen 7 7840U, on the other hand, has 700% more physical cores and 1500% more threads, and a 2150% more advanced lithography process.
We couldn't decide between Pentium M 745 and Ryzen 7 7840U. We've got no test results to judge.
Should you still have questions on choice between Pentium M 745 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
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