Ryzen Threadripper 9980X vs EPYC 7551P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 255 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.71 | no data |
| Market segment | Server | Desktop processor |
| Series | AMD EPYC | no data |
| Power efficiency | 12.72 | no data |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Naples (2017−2018) | Shimada Peak (2025) |
| Release date | 29 June 2017 (7 years ago) | July 2025 |
| Launch price (MSRP) | $2,100 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 7551P and Ryzen Threadripper 9980X 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 | 32 (Dotriaconta-Core) | 64 (Tetrahexaconta-Core) |
| Threads | 64 | 128 |
| Base clock speed | 2 GHz | 3.2 GHz |
| Boost clock speed | 3 GHz | 5.4 GHz |
| Multiplier | 20 | no data |
| L1 cache | 96K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 1 MB (per core) |
| L3 cache | 64 MB (shared) | 256 MB (shared) |
| Chip lithography | 14 nm | 4 nm |
| Die size | 192 mm2 | 8x 70.6 mm2 |
| Number of transistors | 4,800 million | 66,520 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | + |
Compatibility
Information on EPYC 7551P and Ryzen Threadripper 9980X 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 (Uniprocessor) | 1 |
| Socket | TR4 | sTR5 |
| Power consumption (TDP) | 180 Watt | 350 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7551P and Ryzen Threadripper 9980X. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by EPYC 7551P and Ryzen Threadripper 9980X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7551P and Ryzen Threadripper 9980X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5 |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 170.671 GB/s | 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 EPYC 7551P and Ryzen Threadripper 9980X.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | 128 | 48 |
Pros & cons summary
| Physical cores | 32 | 64 |
| Threads | 64 | 128 |
| Chip lithography | 14 nm | 4 nm |
| Power consumption (TDP) | 180 Watt | 350 Watt |
EPYC 7551P has 94.4% lower power consumption.
Ryzen Threadripper 9980X, on the other hand, has 100% more physical cores and 100% more threads, and a 250% more advanced lithography process.
We couldn't decide between AMD EPYC 7551P and AMD Ryzen Threadripper 9980X. We've got no test results to judge.
Be aware that EPYC 7551P is a server/workstation processor while Ryzen Threadripper 9980X is a desktop one.
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