Ryzen 7 7840U vs Pentium 957
Primary details
Comparing Pentium 957 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 427 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Pentium | AMD Phoenix (Zen 4, Ryzen 7040) |
| Power efficiency | no data | 53.17 |
| Architecture codename | Sandy Bridge (2011−2013) | Phoenix-U (Zen 4) (2023) |
| Release date | 19 June 2011 (13 years ago) | May 2023 (1 year ago) |
| Launch price (MSRP) | $134 | no data |
Detailed specifications
Pentium 957 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 | 2 (Dual-core) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | 1.2 GHz | 3.3 GHz |
| Boost clock speed | 1.2 GHz | 5.1 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 12 | no data |
| L1 cache | 64K (per core) | 64K (per core) |
| L2 cache | 256K (per core) | 1 MB (per core) |
| L3 cache | 2 MB (shared) | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 131 mm2 | 178 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| Number of transistors | 504 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Pentium 957 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 (Uniprocessor) | 1 |
| Socket | FCBGA1023 | FP8 |
| Power consumption (TDP) | 17 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 957 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | no data |
| AES-NI | - | + |
| FMA | + | - |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| My WiFi | - | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Demand Based Switching | - | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium 957 and Ryzen 7 7840U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 957 and Ryzen 7 7840U 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 Pentium 957 and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-5600 |
| Maximum memory size | 8.01 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21.335 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics (Sandy Bridge) | AMD Radeon 780M |
| Graphics max frequency | 800 MHz | no data |
Graphics interfaces
Available interfaces and connections of Pentium 957 and Ryzen 7 7840U integrated GPUs.
| Number of displays supported | 2 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| SDVO | + | no data |
| CRT | + | no data |
Peripherals
Specifications and connection of peripherals supported by Pentium 957 and Ryzen 7 7840U.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | 16 | 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.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 17 Watt | 28 Watt |
Pentium 957 has 64.7% lower power consumption.
Ryzen 7 7840U, on the other hand, has 300% more physical cores and 700% more threads, and a 700% more advanced lithography process.
We couldn't decide between Pentium 957 and Ryzen 7 7840U. We've got no test results to judge.
Should you still have questions on choice between Pentium 957 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
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