Xeon E7-8855 v4 vs Ryzen Threadripper PRO 3945WX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 365 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | AMD Ryzen Threadripper | no data |
| Power efficiency | 7.26 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Castle Peak (2020) | no data |
| Release date | 14 July 2020 (5 years ago) | 1 April 2016 (9 years ago) |
Detailed specifications
Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4 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) | 14 (Tetradeca-Core) |
| Threads | 24 | 28 |
| Base clock speed | 4 GHz | 2.1 GHz |
| Boost clock speed | 4.3 GHz | 2.8 GHz |
| Bus rate | no data | 8 GT/s |
| Multiplier | 40 | no data |
| L1 cache | 768 KB | no data |
| L2 cache | 6 MB | no data |
| L3 cache | 64 MB | 35 MB |
| Chip lithography | 7 nm, 12 nm | 14 nm |
| Die size | 2x 74 mm2 | no data |
| Maximum core temperature | no data | 73 °C |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 15940 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4 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 | 8 |
| Socket | WRX8 | FCLGA2011 |
| Power consumption (TDP) | 280 Watt | 140 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| PAE | no data | 46 Bit |
Security technologies
Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4 are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4-1333, DDR4-1600, DDR4-1866, DDR3-1066, DDR3-1333, DDR3-1600 |
| Maximum memory size | 2 TiB | 3 TB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | 204.8 GB/s | 102 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 3945WX and Xeon E7-8855 v4.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 128 | 32 |
Pros & cons summary
| Recency | 14 July 2020 | 1 April 2016 |
| Physical cores | 12 | 14 |
| Threads | 24 | 28 |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 280 Watt | 140 Watt |
Ryzen Threadripper PRO 3945WX has an age advantage of 4 years, and a 100% more advanced lithography process.
Xeon E7-8855 v4, on the other hand, has 16.7% more physical cores and 16.7% more threads, and 100% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper PRO 3945WX and Intel Xeon E7-8855 v4. We've got no test results to judge.
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