Ryzen 7 7840U vs Sempron 145
Primary details
Comparing Sempron 145 and Ryzen 7 7840U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | 368 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | AMD Phoenix (Zen 4, Ryzen 7040) |
| Architecture codename | Sargas (2009−2011) | Phoenix-U (Zen 4) |
| Release date | 1 September 2010 (13 years ago) | May 2023 (1 year ago) |
| Launch price (MSRP) | $95 | no data |
| Current price | $447 (4.7x MSRP) | no data |
Detailed specifications
Sempron 145 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 | 2.8 GHz | 3.3 GHz |
| Boost clock speed | 2.8 GHz | 5.1 GHz |
| L1 cache | 128 KB (per core) | 64K (per core) |
| L2 cache | 1 MB (per core) | 1 MB (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 45 nm | 4 nm |
| Die size | 117 mm2 | 178 mm2 |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 234 million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | No | No |
Compatibility
Information on Sempron 145 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 | AM3 | FP8 |
| Power consumption (TDP) | 45 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 145 and Ryzen 7 7840U. You'll probably need this information if you require some particular technology.
| AES-NI | no data | + |
| AVX | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Sempron 145 and Ryzen 7 7840U are enumerated here.
| AMD-V | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 145 and Ryzen 7 7840U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5-5600 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 780M |
Peripherals
Specifications and connection of peripherals supported by Sempron 145 and Ryzen 7 7840U.
| PCIe version | 2.0 | 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.
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.
Benchmark coverage: 68%
Ryzen 7 7840U outperforms Sempron 145 by 4846% in Passmark.
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
Ryzen 7 7840U outperforms Sempron 145 by 585% in GeekBench 5 Single-Core.
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Ryzen 7 7840U outperforms Sempron 145 by 2726% in GeekBench 5 Multi-Core.
Pros & cons summary
| Physical cores | 1 | 8 |
| Threads | 1 | 16 |
| Chip lithography | 45 nm | 4 nm |
| Power consumption (TDP) | 45 Watt | 28 Watt |
We couldn't decide between Sempron 145 and Ryzen 7 7840U. We've got no test results to judge.
Note that Sempron 145 is a desktop processor while Ryzen 7 7840U is a notebook one.
Should you still have questions on choice between Sempron 145 and Ryzen 7 7840U, ask them in Comments section, and we shall answer.
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