Ryzen Threadripper PRO 3945WX vs Sempron 3400+
Aggregate performance score
Ryzen Threadripper PRO 3945WX outperforms Sempron 3400+ by a whopping 11506% based on our aggregate benchmark results.
Primary details
Comparing Sempron 3400+ and Ryzen Threadripper PRO 3945WX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3317 | 275 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD Ryzen Threadripper |
| Power efficiency | 0.28 | 7.11 |
| Architecture codename | Palermo (2001−2005) | Castle Peak (2020) |
| Release date | 1 October 2005 (19 years ago) | 14 July 2020 (4 years ago) |
| Launch price (MSRP) | $30 | no data |
Detailed specifications
Sempron 3400+ and Ryzen Threadripper PRO 3945WX 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) | 12 (Dodeca-Core) |
| Threads | 1 | 24 |
| Base clock speed | no data | 4 GHz |
| Boost clock speed | 2 GHz | 4.3 GHz |
| Multiplier | no data | 40 |
| L1 cache | 128 KB | 768 KB |
| L2 cache | 128 KB | 6 MB |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 90 nm | 7 nm, 12 nm |
| Die size | 103 mm2 | 2x 74 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 63 million | 15940 Million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Sempron 3400+ and Ryzen Threadripper PRO 3945WX 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 | 939 | WRX8 |
| Power consumption (TDP) | 62 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Sempron 3400+ and Ryzen Threadripper PRO 3945WX. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Sempron 3400+ and Ryzen Threadripper PRO 3945WX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Sempron 3400+ and Ryzen Threadripper PRO 3945WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1 | DDR4-3200 |
| Maximum memory size | no data | 2 TiB |
| Maximum memory bandwidth | no data | 204.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | N/A |
Peripherals
Specifications and connection of peripherals supported by Sempron 3400+ and Ryzen Threadripper PRO 3945WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
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.
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 | 0.18 | 20.89 |
| Recency | 1 October 2005 | 14 July 2020 |
| Physical cores | 1 | 12 |
| Threads | 1 | 24 |
| Chip lithography | 90 nm | 7 nm |
| Power consumption (TDP) | 62 Watt | 280 Watt |
Sempron 3400+ has 351.6% lower power consumption.
Ryzen Threadripper PRO 3945WX, on the other hand, has a 11505.6% higher aggregate performance score, an age advantage of 14 years, 1100% more physical cores and 2300% more threads, and a 1185.7% more advanced lithography process.
The Ryzen Threadripper PRO 3945WX is our recommended choice as it beats the Sempron 3400+ in performance tests.
Note that Sempron 3400+ is a desktop processor while Ryzen Threadripper PRO 3945WX is a server/workstation one.
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