EPYC 7Y43 vs Ryzen Threadripper PRO 9975WX
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 21 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 13.85 | no data |
| Market segment | Server | Server |
| Power efficiency | 7.56 | no data |
| Designer | AMD | AMD |
| Manufacturer | TSMC | TSMC |
| Architecture codename | Shimada Peak (2025) | Milan (2021−2023) |
| Release date | 23 July 2025 (less than a year ago) | 2021 (4 years ago) |
| Launch price (MSRP) | $4,099 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Ryzen Threadripper PRO 9975WX 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 | 32 (Dotriaconta-Core) | 48 (Octatetraconta-Core) |
| Threads | 64 | 96 |
| Base clock speed | 4 GHz | 2.55 GHz |
| Boost clock speed | 5.4 GHz | 3.6 GHz |
| L1 cache | 64 KB (per core) | 64 KB (per core) |
| L2 cache | 1 MB (per core) | 512 KB (per core) |
| L3 cache | 128 MB (shared) | 256 MB (shared) |
| Chip lithography | 4 nm | 7 nm |
| Die size | 4x 70.6 mm2 | 8x 81 mm2 |
| Number of transistors | 33,260 million | 33,200 million |
| 64 bit support | + | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper PRO 9975WX 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 | 1 | 2 |
| Socket | sTR5 | SP3 |
| Power consumption (TDP) | 350 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 9975WX and EPYC 7Y43. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| Precision Boost 2 | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 9975WX and EPYC 7Y43 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 9975WX and EPYC 7Y43. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | N/A | N/A |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 9975WX and EPYC 7Y43.
| PCIe version | 5.0 | 4.0 |
| PCI Express lanes | 136 | 128 |
Pros & cons summary
| Physical cores | 32 | 48 |
| Threads | 64 | 96 |
| Chip lithography | 4 nm | 7 nm |
| Power consumption (TDP) | 350 Watt | 280 Watt |
Ryzen Threadripper PRO 9975WX has a 75% more advanced lithography process.
EPYC 7Y43, on the other hand, has 50% more physical cores and 50% more threads, and 25% lower power consumption.
We couldn't decide between AMD Ryzen Threadripper PRO 9975WX and AMD EPYC 7Y43. We've got no test results to judge.
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