Athlon 64 FX-51 vs Sempron 3100+
Aggregate performance score
Athlon 64 FX-51 outperforms Sempron 3100+ by a considerable 47% based on our aggregate benchmark results.
Primary details
Comparing Sempron 3100+ and Athlon 64 FX-51 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3239 | 3120 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 0.29 | 0.30 |
| Architecture codename | Palermo (2001−2005) | SledgeHammer (2003−2005) |
| Release date | January 2001 (23 years ago) | September 2003 (21 year ago) |
| Launch price (MSRP) | $60 | no data |
Detailed specifications
Sempron 3100+ and Athlon 64 FX-51 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) | 1 (Single-Core) |
| Threads | 1 | 1 |
| Boost clock speed | 1.8 GHz | 2.2 GHz |
| L1 cache | 128 KB | 128 KB |
| L2 cache | 256 KB | 1 MB |
| L3 cache | 0 KB | 0 KB |
| Chip lithography | 130 nm | 130 nm |
| Die size | 144 mm2 | 193 mm2 |
| Number of transistors | 69 million | 105 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Sempron 3100+ and Athlon 64 FX-51 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 | 754 | 940 |
| Power consumption (TDP) | 62 Watt | 89 Watt |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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
| Performance score | 0.19 | 0.28 |
| Power consumption (TDP) | 62 Watt | 89 Watt |
Sempron 3100+ has 43.5% lower power consumption.
Athlon 64 FX-51, on the other hand, has a 47.4% higher aggregate performance score.
The Athlon 64 FX-51 is our recommended choice as it beats the Sempron 3100+ in performance tests.
Should you still have questions on choice between Sempron 3100+ and Athlon 64 FX-51, ask them in Comments section, and we shall answer.
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