Xeon Phi 7255 vs Ryzen Threadripper 3990X
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 64 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 10.15 | no data |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen Threadripper | no data |
| Power efficiency | 6.87 | no data |
| Designer | AMD | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Matisse (2019−2020) | no data |
| Release date | 25 November 2019 (5 years ago) | 1 October 2017 (8 years ago) |
| Launch price (MSRP) | $3,999 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen Threadripper 3990X and Xeon Phi 7255 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 | 64 (Tetrahexaconta-Core) | 68 (Octahexaconta-Core) |
| Threads | 128 | 68 |
| Base clock speed | 2.9 GHz | 1.1 GHz |
| Boost clock speed | 4.3 GHz | 1.2 GHz |
| Multiplier | 29 | no data |
| L1 cache | 4 MB | no data |
| L2 cache | 32 MB | no data |
| L3 cache | 256 MB | 34 MB L2 Cache |
| Chip lithography | 7 nm, 12 nm | 14 nm |
| Die size | 74 mm2 | no data |
| Maximum core temperature | no data | 82 °C |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 38740 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 0.550-1.2V |
Compatibility
Information on Ryzen Threadripper 3990X and Xeon Phi 7255 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 | no data |
| Socket | TR4 | no data |
| Power consumption (TDP) | 280 Watt | 215 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper 3990X and Xeon Phi 7255. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | - |
| Turbo Boost Technology | no data | 2.0 |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Precision Boost 2 | + | no data |
Security technologies
Ryzen Threadripper 3990X and Xeon Phi 7255 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | - |
| EDB | no data | + |
| SGX | no data | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper 3990X and Xeon Phi 7255 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 3990X and Xeon Phi 7255. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR4-2400 |
| Maximum memory size | 256 GB | 384 GB |
| Max memory channels | 4 | 6 |
| Maximum memory bandwidth | 102.403 GB/s | 115.2 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper 3990X and Xeon Phi 7255.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | no data | 36 |
Pros & cons summary
| Recency | 25 November 2019 | 1 October 2017 |
| Physical cores | 64 | 68 |
| Threads | 128 | 68 |
| Chip lithography | 7 nm | 14 nm |
| Power consumption (TDP) | 280 Watt | 215 Watt |
Ryzen Threadripper 3990X has an age advantage of 2 years, 88.2% more threads, and a 100% more advanced lithography process.
Xeon Phi 7255, on the other hand, has 6.3% more physical cores, and 30.2% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper 3990X and Intel Xeon Phi 7255. We've got no test results to judge.
Note that Ryzen Threadripper 3990X is a desktop processor while Xeon Phi 7255 is a server/workstation one.
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