Xeon Gold 6421N vs Ryzen Threadripper 3970X
Aggregate performance score
Ryzen Threadripper 3970X outperforms Xeon Gold 6421N by a small 7% based on our aggregate benchmark results.
Primary details
Comparing Ryzen Threadripper 3970X and Xeon Gold 6421N processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 65 | 90 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 16.24 | 44.63 |
| Market segment | Desktop processor | Server |
| Series | AMD Ryzen Threadripper | no data |
| Power efficiency | 13.41 | 18.93 |
| Architecture codename | Matisse (2019−2020) | Sapphire Rapids (2023−2024) |
| Release date | 25 November 2019 (5 years ago) | 10 January 2023 (1 year ago) |
| Launch price (MSRP) | $1,999 | $2,368 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon Gold 6421N has 175% better value for money than Ryzen Threadripper 3970X.
Detailed specifications
Ryzen Threadripper 3970X and Xeon Gold 6421N 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) | 32 (Dotriaconta-Core) |
| Threads | 64 | 64 |
| Base clock speed | 3.7 GHz | 1.8 GHz |
| Boost clock speed | 4.5 GHz | 3.6 GHz |
| Bus rate | 8 × 16 GT/s | no data |
| Multiplier | 37 | no data |
| L1 cache | 96K (per core) | 80K (per core) |
| L2 cache | 512K (per core) | 2 MB (per core) |
| L3 cache | 128 MB | 60 MB |
| Chip lithography | 7 nm, 12 nm | Intel 7 nm |
| Maximum case temperature (TCase) | no data | 85 °C |
| Number of transistors | 19,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Ryzen Threadripper 3970X and Xeon Gold 6421N 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 | FCLGA4677 |
| Power consumption (TDP) | 280 Watt | 185 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper 3970X and Xeon Gold 6421N. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Precision Boost 2 | + | no data |
| Deep Learning Boost | - | + |
Security technologies
Ryzen Threadripper 3970X and Xeon Gold 6421N technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Ryzen Threadripper 3970X and Xeon Gold 6421N 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 Ryzen Threadripper 3970X and Xeon Gold 6421N. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR5-4400 |
| Maximum memory size | 256 GB | 4 TB |
| Max memory channels | 4 | 8 |
| Maximum memory bandwidth | 102.403 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper 3970X and Xeon Gold 6421N.
| PCIe version | no data | 5 |
| PCI Express lanes | no data | 80 |
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Pros & cons summary
| Performance score | 39.71 | 37.02 |
| Recency | 25 November 2019 | 10 January 2023 |
| Power consumption (TDP) | 280 Watt | 185 Watt |
Ryzen Threadripper 3970X has a 7.3% higher aggregate performance score.
Xeon Gold 6421N, on the other hand, has an age advantage of 3 years, and 51.4% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Ryzen Threadripper 3970X and Xeon Gold 6421N.
Note that Ryzen Threadripper 3970X is a desktop processor while Xeon Gold 6421N is a server/workstation one.
Should you still have questions on choice between Ryzen Threadripper 3970X and Xeon Gold 6421N, ask them in Comments section, and we shall answer.
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