Athlon X4 940 vs Ryzen 9 PRO 3900
Primary details
Comparing Ryzen 9 PRO 3900 and Athlon X4 940 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 281 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Desktop processor |
| Series | AMD Ryzen 9 | no data |
| Power efficiency | 28.98 | no data |
| Architecture codename | Zen 2 (2017−2020) | Bristol Ridge (2016−2019) |
| Release date | 30 September 2019 (5 years ago) | 27 July 2017 (7 years ago) |
Detailed specifications
Ryzen 9 PRO 3900 and Athlon X4 940 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 | 12 (Dodeca-Core) | 4 (Quad-Core) |
| Threads | 24 | 4 |
| Base clock speed | 3.1 GHz | 3.2 GHz |
| Boost clock speed | 4.3 GHz | 3.6 GHz |
| L1 cache | 768 KB | 128 KB (per core) |
| L2 cache | 6 MB | 512 KB (per core) |
| L3 cache | 64 MB | 0 KB |
| Chip lithography | 7 nm, 12 nm | 28 nm |
| Die size | no data | 246 mm2 |
| Maximum case temperature (TCase) | no data | 74 °C |
| Number of transistors | no data | 1,178 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | - | + |
Compatibility
Information on Ryzen 9 PRO 3900 and Athlon X4 940 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 | Socket AM4 | AM4 |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen 9 PRO 3900 and Athlon X4 940. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen 9 PRO 3900 and Athlon X4 940 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen 9 PRO 3900 and Athlon X4 940. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4 Dual-channel |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.196 GB/s | no data |
Pros & cons summary
| Recency | 30 September 2019 | 27 July 2017 |
| Physical cores | 12 | 4 |
| Threads | 24 | 4 |
| Chip lithography | 7 nm | 28 nm |
Ryzen 9 PRO 3900 has an age advantage of 2 years, 200% more physical cores and 500% more threads, and a 300% more advanced lithography process.
We couldn't decide between Ryzen 9 PRO 3900 and Athlon X4 940. We've got no test results to judge.
Should you still have questions on choice between Ryzen 9 PRO 3900 and Athlon X4 940, ask them in Comments section, and we shall answer.
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