Opteron 6378 vs Xeon L5640
Aggregate performance score
Opteron 6378 outperforms Xeon L5640 by a significant 27% based on our aggregate benchmark results.
Primary details
Comparing Xeon L5640 and Opteron 6378 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1651 | 1481 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.70 | 1.41 |
| Market segment | Server | Server |
| Power efficiency | 4.61 | 3.05 |
| Architecture codename | Westmere-EP (2010−2011) | Abu Dhabi (2012) |
| Release date | 16 March 2010 (14 years ago) | 5 November 2012 (12 years ago) |
| Launch price (MSRP) | $200 | $396 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon L5640 has 21% better value for money than Opteron 6378.
Detailed specifications
Xeon L5640 and Opteron 6378 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 | 6 (Hexa-Core) | 16 (Hexadeca-Core) |
| Threads | 12 | 16 |
| Base clock speed | 2.26 GHz | 2.4 GHz |
| Boost clock speed | 2.8 GHz | 3.3 GHz |
| L1 cache | 64 KB (per core) | 768 KB |
| L2 cache | 256 KB (per core) | 16 MB |
| L3 cache | 12 MB (shared) | 8 MB (per die) |
| Chip lithography | 32 nm | 32 nm |
| Die size | 239 mm2 | 315 mm2 |
| Maximum core temperature | 69 °C | no data |
| Number of transistors | 1,170 million | 2,400 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon L5640 and Opteron 6378 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 | 4 |
| Socket | FCLGA1366,LGA1366 | G34 |
| Power consumption (TDP) | 60 Watt | 115 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5640 and Opteron 6378. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| FMA | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
Security technologies
Xeon L5640 and Opteron 6378 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5640 and Opteron 6378 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 Xeon L5640 and Opteron 6378. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR3 |
| Maximum memory size | 288 GB | no data |
| Max memory channels | 3 | no data |
| Maximum memory bandwidth | 32 GB/s | no data |
| ECC memory support | + | - |
Peripherals
Specifications and connection of peripherals supported by Xeon L5640 and Opteron 6378.
| 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 | 2.92 | 3.71 |
| Recency | 16 March 2010 | 5 November 2012 |
| Physical cores | 6 | 16 |
| Threads | 12 | 16 |
| Power consumption (TDP) | 60 Watt | 115 Watt |
Xeon L5640 has 91.7% lower power consumption.
Opteron 6378, on the other hand, has a 27.1% higher aggregate performance score, an age advantage of 2 years, and 166.7% more physical cores and 33.3% more threads.
The Opteron 6378 is our recommended choice as it beats the Xeon L5640 in performance tests.
Should you still have questions on choice between Xeon L5640 and Opteron 6378, ask them in Comments section, and we shall answer.
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