Opteron X3421 vs Ryzen Threadripper PRO 9995WX
Aggregate performance score
Ryzen Threadripper PRO 9995WX outperforms Opteron X3421 by a whopping 2037% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 58 | 2048 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Workstation |
| Power efficiency | 12.07 | 13.18 |
| Designer | AMD | AMD |
| Manufacturer | TSMC | GlobalFoundries |
| Architecture codename | Shimada Peak (2025) | Excavator (2017−2018) |
| Release date | July 2025 | 10 June 2017 (7 years ago) |
Detailed specifications
Ryzen Threadripper PRO 9995WX and Opteron X3421 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 | 96 | 4 (Quad-Core) |
| Threads | 192 | 4 |
| Base clock speed | 2.5 GHz | 2.1 GHz |
| Boost clock speed | 5.4 GHz | 3.4 GHz |
| L1 cache | 64 KB (per core) | 160 KB |
| L2 cache | 1 MB (per core) | 2 MB (shared) |
| L3 cache | 384 MB (shared) | no data |
| Chip lithography | 4 nm | 28 nm |
| Die size | 12x 70.6 mm2 | 250 mm2 |
| Maximum case temperature (TCase) | no data | 82 °C |
| Number of transistors | 99,780 million | 3,100 million |
| 64 bit support | + | + |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper PRO 9995WX and Opteron X3421 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 | 1 |
| Socket | sTR5 | FP4 |
| Power consumption (TDP) | 350 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 9995WX and Opteron X3421. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | - | + |
| AVX | + | + |
| Precision Boost 2 | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper PRO 9995WX and Opteron X3421 are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Ryzen Threadripper PRO 9995WX and Opteron X3421. 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 | Radeon Rx Series 8CU |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 9995WX and Opteron X3421.
| PCIe version | 5.0 | 3.0 |
| PCI Express lanes | 136 | 8 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 43.81 | 2.05 |
| Physical cores | 96 | 4 |
| Threads | 192 | 4 |
| Chip lithography | 4 nm | 28 nm |
| Power consumption (TDP) | 350 Watt | 15 Watt |
Ryzen Threadripper PRO 9995WX has a 2037.1% higher aggregate performance score, 2300% more physical cores and 4700% more threads, and a 600% more advanced lithography process.
Opteron X3421, on the other hand, has 2233.3% lower power consumption.
The AMD Ryzen Threadripper PRO 9995WX is our recommended choice as it beats the AMD Opteron X3421 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
