EPYC 9555 vs Xeon Phi 7120X
Primary details
Comparing Xeon Phi 7120X and EPYC 9555 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Architecture codename | Knights Corner (2012−2014) | Turin (2024) |
| Release date | 17 June 2013 (11 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $9,826 |
Detailed specifications
Xeon Phi 7120X and EPYC 9555 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 | 61 (Henihexaconta-Core) | 64 (Tetrahexaconta-Core) |
| Threads | 244 | 128 |
| Base clock speed | 1.24 GHz | 3.2 GHz |
| Boost clock speed | 1.33 GHz | 4.4 GHz |
| L1 cache | 32 KB (per core) | 80 KB (per core) |
| L2 cache | 512 KB (per core) | 1 MB (per core) |
| L3 cache | 0 KB (shared) | 256 MB (shared) |
| Chip lithography | 22 nm | 4 nm |
| Die size | 350 mm2 | 8x 70.6 mm2 |
| Number of transistors | 5,000 million | 66,520 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Xeon Phi 7120X and EPYC 9555 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 | PCIe x16 | SP5 |
| Power consumption (TDP) | 300 Watt | 360 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Phi 7120X and EPYC 9555. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Xeon Phi 7120X and EPYC 9555 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Phi 7120X and EPYC 9555 are enumerated here.
| AMD-V | - | + |
| VT-d | + | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Phi 7120X and EPYC 9555. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | DDR5 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Xeon Phi 7120X and EPYC 9555.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 17 June 2013 | 10 October 2024 |
| Physical cores | 61 | 64 |
| Threads | 244 | 128 |
| Chip lithography | 22 nm | 4 nm |
| Power consumption (TDP) | 300 Watt | 360 Watt |
Xeon Phi 7120X has 90.6% more threads, and 20% lower power consumption.
EPYC 9555, on the other hand, has an age advantage of 11 years, 4.9% more physical cores, and a 450% more advanced lithography process.
We couldn't decide between Xeon Phi 7120X and EPYC 9555. We've got no test results to judge.
Should you still have questions on choice between Xeon Phi 7120X and EPYC 9555, ask them in Comments section, and we shall answer.
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