Xeon L5638 vs Opteron 3365
Aggregate performance score
Opteron 3365 outperforms Xeon L5638 by a moderate 11% based on our aggregate benchmark results.
Primary details
Comparing Opteron 3365 and Xeon L5638 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1720 | 1785 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 1.73 |
| Market segment | Server | Server |
| Power efficiency | 3.76 | 3.68 |
| Architecture codename | Delhi (2012−2013) | Westmere-EP (2010−2011) |
| Release date | June 2013 (11 years ago) | 16 March 2010 (14 years ago) |
| Launch price (MSRP) | no data | $90 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Opteron 3365 and Xeon L5638 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) | 6 (Hexa-Core) |
| Threads | 8 | 12 |
| Base clock speed | 2.3 GHz | 2 GHz |
| Boost clock speed | 3.3 GHz | 2.4 GHz |
| L1 cache | 384 KB | 64 KB (per core) |
| L2 cache | 4 MB | 256 KB (per core) |
| L3 cache | 8 MB (shared) | 12 MB (shared) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 315 mm2 | 239 mm2 |
| Maximum core temperature | no data | 85 °C |
| Number of transistors | 1,200 million | 1,170 million |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
Compatibility
Information on Opteron 3365 and Xeon L5638 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 | 2 |
| Socket | AM3+ | FCLGA1366,LGA1366 |
| Power consumption (TDP) | 65 Watt | 60 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 3365 and Xeon L5638. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| Turbo Boost Technology | no data | 1.0 |
| Hyper-Threading Technology | no data | + |
| Idle States | no data | + |
Security technologies
Opteron 3365 and Xeon L5638 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Opteron 3365 and Xeon L5638 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 Opteron 3365 and Xeon L5638. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | On certain motherboards (Chipset feature) | no data |
Peripherals
Specifications and connection of peripherals supported by Opteron 3365 and Xeon L5638.
| PCIe version | 2.0 | 2.0 |
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 | 2.68 | 2.42 |
| Physical cores | 8 | 6 |
| Threads | 8 | 12 |
| Power consumption (TDP) | 65 Watt | 60 Watt |
Opteron 3365 has a 10.7% higher aggregate performance score, and 33.3% more physical cores.
Xeon L5638, on the other hand, has 50% more threads, and 8.3% lower power consumption.
The Opteron 3365 is our recommended choice as it beats the Xeon L5638 in performance tests.
Should you still have questions on choice between Opteron 3365 and Xeon L5638, ask them in Comments section, and we shall answer.
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