EPYC 7Y43 vs Xeon 6978P
Contents
Primary details
Comparing 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 |
| Designer | Intel | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | no data | Milan (2021−2023) |
| Release date | 1 July 2025 (less than a year ago) | 2021 (4 years ago) |
Detailed specifications
Xeon 6978P and EPYC 7Y43 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 | 120 | 48 (Octatetraconta-Core) |
| Threads | 240 | 96 |
| Base clock speed | 2.1 GHz | 2.55 GHz |
| Boost clock speed | 3.9 GHz | 3.6 GHz |
| L1 cache | no data | 64 KB (per core) |
| L2 cache | no data | 512 KB (per core) |
| L3 cache | 504 MB | 256 MB (shared) |
| Chip lithography | Intel 3 nm | 7 nm |
| Die size | no data | 8x 81 mm2 |
| Maximum core temperature | 80 °C | no data |
| Number of transistors | no data | 33,200 million |
| 64 bit support | - | - |
Compatibility
Information on Xeon 6978P and EPYC 7Y43 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 | no data | 2 |
| Socket | FCLGA7529 | SP3 |
| Power consumption (TDP) | 500 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon 6978P and EPYC 7Y43. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | - | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Precision Boost 2 | no data | + |
| Deep Learning Boost | + | - |
Security technologies
Xeon 6978P and EPYC 7Y43 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| SGX | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon 6978P and EPYC 7Y43 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 6978P and EPYC 7Y43. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5(6400MT/s) MRDIMM(8800MT/s) | DDR4 |
| Maximum memory size | 3 TB | no data |
| Max memory channels | 12 | no data |
| ECC memory support | + | - |
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 6978P and EPYC 7Y43.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 96 | 128 |
Pros & cons summary
| Physical cores | 120 | 48 |
| Threads | 240 | 96 |
| Power consumption (TDP) | 500 Watt | 280 Watt |
Xeon 6978P has 150% more physical cores and 150% more threads.
EPYC 7Y43, on the other hand, has 78.6% lower power consumption.
We couldn't decide between Intel Xeon 6978P and AMD EPYC 7Y43. We've got no test results to judge.
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