EPYC 7643 vs Xeon Phi 7295
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 76 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 7.25 |
| Market segment | Server | Server |
| Series | Intel Xeon Phi | AMD EPYC |
| Power efficiency | no data | 8.17 |
| Designer | Intel | AMD |
| Manufacturer | Intel | TSMC |
| Architecture codename | Knights Mill (2017) | Milan (2021−2023) |
| Release date | 18 December 2017 (8 years ago) | 12 January 2021 (5 years ago) |
| Launch price (MSRP) | no data | $4,995 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon Phi 7295 and EPYC 7643 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 | 72 (Doheptaconta-Core) | 48 (Octatetraconta-Core) |
| Threads | 288 | 96 |
| Base clock speed | 1.5 GHz | 2.3 GHz |
| Boost clock speed | 1.6 GHz | 3.6 GHz |
| Multiplier | 15 | 23 |
| L1 cache | 4.5 MB | 3 MB |
| L2 cache | 36 MB | 24 MB |
| L3 cache | 0 KB (shared) | 256 MB (shared) |
| Chip lithography | 14 nm | 7 nm+ |
| Die size | no data | 8x 81 mm2 |
| Maximum core temperature | 77 °C | no data |
| Number of transistors | 8,000 million | 33,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| VID voltage range | 0.550-1.2V | no data |
Compatibility
Information on Xeon Phi 7295 and EPYC 7643 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 | 2 |
| Socket | SVLCLGA3647 | SP3 |
| Power consumption (TDP) | 320 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Phi 7295 and EPYC 7643. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | + |
| Turbo Boost Technology | 2.0 | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
Security technologies
Xeon Phi 7295 and EPYC 7643 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 Xeon Phi 7295 and EPYC 7643 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 Xeon Phi 7295 and EPYC 7643. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR4-3200 |
| Maximum memory size | 384 GB | 4 TiB |
| Max memory channels | 6 | no data |
| Maximum memory bandwidth | 115.212 GB/s | 204.795 GB/s |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
| Max video memory | 1 GB | no data |
| Graphics max frequency | 0 MHz | no data |
Peripherals
Specifications and connection of peripherals supported by Xeon Phi 7295 and EPYC 7643.
| PCIe version | 3.0 | 4.0 |
| PCI Express lanes | 36 | 128 |
Pros & cons summary
| Recency | 18 December 2017 | 12 January 2021 |
| Physical cores | 72 | 48 |
| Threads | 288 | 96 |
| Chip lithography | 14 nm | 7 nm |
| Power consumption (TDP) | 320 Watt | 225 Watt |
Xeon Phi 7295 has 50% more physical cores and 200% more threads.
EPYC 7643, on the other hand, has an age advantage of 3 years, a 100% more advanced lithography process, and 42% lower power consumption.
We couldn't decide between Intel Xeon Phi 7295 and AMD EPYC 7643. We've got no test results to judge.
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