Ryzen Threadripper PRO 3945WX vs Opteron 850
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 384 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | no data | AMD Ryzen Threadripper |
| Power efficiency | no data | 2.88 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | SledgeHammer (2003−2005) | Castle Peak (2020) |
| Release date | December 2004 (21 years ago) | 14 July 2020 (5 years ago) |
Detailed specifications
Basic parameters of Opteron 850 and Ryzen Threadripper PRO 3945WX: 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 | 2.4 GHz | 4.3 GHz |
| Multiplier | no data | 40 |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 1 MB | 512 KB (per core) |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 130 nm | 7 nm, 12 nm |
| Die size | 193 mm2 | 2x 74 mm2 |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | 106 million | 7,600 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Opteron 850 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 | 8 | 1 |
| Socket | 940 | WRX8 |
| Power consumption (TDP) | 89 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 850 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 Opteron 850 and Ryzen Threadripper PRO 3945WX are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron 850 and Ryzen Threadripper PRO 3945WX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | 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 | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Opteron 850 and Ryzen Threadripper PRO 3945WX.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Physical cores | 1 | 12 |
| Threads | 1 | 24 |
| Chip lithography | 130 nm | 7 nm |
| Power consumption (TDP) | 89 Watt | 280 Watt |
Opteron 850 has 215% lower power consumption.
Ryzen Threadripper PRO 3945WX, on the other hand, has 1100% more physical cores and 2300% more threads, and a 1757% more advanced lithography process.
We couldn't decide between AMD Opteron 850 and AMD Ryzen Threadripper PRO 3945WX. We've got no test results to judge.
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