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Xeon Phi 31S1P vs Opteron X2 265
Primary details
Comparing Opteron X2 265 and Xeon Phi 31S1P processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Architecture codename | Italy (2005−2006) | Knights Corner (2012−2014) |
| Release date | May 2005 (19 years ago) | 17 June 2013 (11 years ago) |
Detailed specifications
Opteron X2 265 and Xeon Phi 31S1P 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) | 57 (Heptapentaconta-Core) |
| Threads | 2 | 228 |
| Boost clock speed | 1.8 GHz | 1.1 GHz |
| L1 cache | 128 KB | 32 KB (per core) |
| L2 cache | 1 MB | 512 KB (per core) |
| L3 cache | 0 KB | 0 KB (shared) |
| Chip lithography | 90 nm | 22 nm |
| Die size | no data | 350 mm2 |
| Number of transistors | 233 million | 5,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Opteron X2 265 and Xeon Phi 31S1P 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 | 1 |
| Socket | 940 | PCIe x16 |
| Power consumption (TDP) | 95 Watt | 270 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron X2 265 and Xeon Phi 31S1P. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
Security technologies
Opteron X2 265 and Xeon Phi 31S1P technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron X2 265 and Xeon Phi 31S1P are enumerated here.
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron X2 265 and Xeon Phi 31S1P. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR3, DDR4 |
Pros & cons summary
| Physical cores | 2 | 57 |
| Threads | 2 | 228 |
| Chip lithography | 90 nm | 22 nm |
| Power consumption (TDP) | 95 Watt | 270 Watt |
Opteron X2 265 has 184.2% lower power consumption.
Xeon Phi 31S1P, on the other hand, has 2750% more physical cores and 11300% more threads, and a 309.1% more advanced lithography process.
We couldn't decide between Opteron X2 265 and Xeon Phi 31S1P. We've got no test results to judge.
Should you still have questions on choice between Opteron X2 265 and Xeon Phi 31S1P, ask them in Comments section, and we shall answer.
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