Xeon 2.66 vs Opteron 4386
Primary details
Comparing Opteron 4386 and Xeon 2.66 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1885 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Power efficiency | 2.05 | no data |
| Architecture codename | Seoul (2012) | Prestonia (2002) |
| Release date | 4 December 2012 (11 years ago) | November 2002 (22 years ago) |
Detailed specifications
Opteron 4386 and Xeon 2.66 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 | 8 (Octa-Core) | 1 (Single-Core) |
| Threads | 8 | 1 |
| Base clock speed | 3.1 GHz | no data |
| Boost clock speed | 3.8 GHz | 2.66 GHz |
| L1 cache | 384 KB | 16 KB |
| L2 cache | 8192 KB | 512 KB |
| L3 cache | 8192 KB (shared) | 0 KB |
| Chip lithography | 32 nm | 130 nm |
| Die size | 315 mm2 | 217 mm2 |
| Number of transistors | 1,200 million | 55 million |
| 64 bit support | + | - |
| Windows 11 compatibility | - | - |
Compatibility
Information on Opteron 4386 and Xeon 2.66 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 | 2 | 2 |
| Socket | C32 | 604 |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 4386 and Xeon 2.66. You'll probably need this information if you require some particular technology.
| AES-NI | + | - |
| FMA | + | - |
| AVX | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron 4386 and Xeon 2.66 are enumerated here.
| AMD-V | + | - |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron 4386 and Xeon 2.66. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | no data |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
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
| Physical cores | 8 | 1 |
| Threads | 8 | 1 |
| Chip lithography | 32 nm | 130 nm |
| Power consumption (TDP) | 95 Watt | 89 Watt |
Opteron 4386 has 700% more physical cores and 700% more threads, and a 306.3% more advanced lithography process.
Xeon 2.66, on the other hand, has 6.7% lower power consumption.
We couldn't decide between Opteron 4386 and Xeon 2.66. We've got no test results to judge.
Should you still have questions on choice between Opteron 4386 and Xeon 2.66, ask them in Comments section, and we shall answer.
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