Ryzen 9 3950X vs Opteron X2 865 HE
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 302 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 15.94 |
| Market segment | Server | Desktop processor |
| Series | no data | AMD Ryzen 9 |
| Power efficiency | no data | 8.84 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Egypt (2005−2006) | Matisse (Zen 2) (2019−2020) |
| Release date | August 2005 (20 years ago) | 14 November 2019 (6 years ago) |
| Launch price (MSRP) | no data | $799 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Opteron X2 865 HE and Ryzen 9 3950X 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 | 2 (Dual-core) | 16 (Hexadeca-Core) |
| Threads | 2 | 32 |
| Base clock speed | no data | 3.5 GHz |
| Boost clock speed | 1.8 GHz | 4.7 GHz |
| L1 cache | 128 KB | 96K (per core) |
| L2 cache | 1 MB | 512K (per core) |
| L3 cache | 0 KB | 64 MB |
| Chip lithography | 90 nm | 7 nm, 12 nm |
| Die size | no data | 2 x 72 mm + 125 mm (IO-Die) mm2 |
| Number of transistors | 233 million | 19,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Opteron X2 865 HE and Ryzen 9 3950X 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 | 8 | 1 (Uniprocessor) |
| Socket | 940 | AM4 |
| Power consumption (TDP) | 55 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron X2 865 HE and Ryzen 9 3950X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | 86x MMX(+), SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, SSE4A,-64, AMD-V, AES, AVX, AVX2, FMA3, SHA, Precision Boost 2 |
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron X2 865 HE and Ryzen 9 3950X are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron X2 865 HE and Ryzen 9 3950X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 Dual-channel |
| Maximum memory size | no data | 128 GB |
| Maximum memory bandwidth | no data | 51.196 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Physical cores | 2 | 16 |
| Threads | 2 | 32 |
| Chip lithography | 90 nm | 7 nm |
| Power consumption (TDP) | 55 Watt | 105 Watt |
Opteron X2 865 HE has 90.9% lower power consumption.
Ryzen 9 3950X, on the other hand, has 700% more physical cores and 1500% more threads, and a 1185.7% more advanced lithography process.
We couldn't decide between AMD Opteron X2 865 HE and AMD Ryzen 9 3950X. We've got no test results to judge.
Be aware that Opteron X2 865 HE is a server/workstation processor while Ryzen 9 3950X is a desktop one.
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