Atom C3850 vs Xeon L5640
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1961 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.53 | no data |
| Market segment | Server | Server |
| Series | no data | Intel Atom |
| Power efficiency | 1.87 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | no data |
| Architecture codename | Westmere-EP (2010−2011) | Goldmont (2016−2017) |
| Release date | 16 March 2010 (15 years ago) | 15 August 2017 (8 years ago) |
| Launch price (MSRP) | $200 | $323 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Xeon L5640 and Atom C3850 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) | 12 (Dodeca-Core) |
| Threads | 12 | 12 |
| Base clock speed | 2.26 GHz | 2.1 GHz |
| Boost clock speed | 2.8 GHz | 2.4 GHz |
| Multiplier | no data | 21 |
| L1 cache | 64 KB (per core) | 672 KB |
| L2 cache | 256 KB (per core) | 12 MB |
| L3 cache | 12 MB (shared) | 12 MB |
| Chip lithography | 32 nm | 14 nm |
| Die size | 239 mm2 | no data |
| Maximum core temperature | 69 °C | 78 °C |
| Number of transistors | 1,170 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Xeon L5640 and Atom C3850 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 (Uniprocessor) |
| Socket | FCLGA1366,LGA1366 | FCBGA1310 |
| Power consumption (TDP) | 60 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon L5640 and Atom C3850. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2 | no data |
| AES-NI | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | - |
| Turbo Boost Technology | 1.0 | 2.0 |
| Hyper-Threading Technology | + | - |
| Idle States | + | no data |
| Demand Based Switching | + | no data |
| PAE | 40 Bit | no data |
Security technologies
Xeon L5640 and Atom C3850 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | + |
| Secure Boot | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon L5640 and Atom C3850 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon L5640 and Atom C3850. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4: 2400 |
| Maximum memory size | 288 GB | 256 GB |
| Max memory channels | 3 | 2 |
| Maximum memory bandwidth | 32 GB/s | 34.134 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon L5640 and Atom C3850.
| PCIe version | 2.0 | 3 |
| PCI Express lanes | no data | 16 |
| USB revision | no data | 3 |
| Total number of SATA ports | no data | 16 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | 2x10/2.5/1 GBE |
Pros & cons summary
| Recency | 16 March 2010 | 15 August 2017 |
| Physical cores | 6 | 12 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 60 Watt | 25 Watt |
Atom C3850 has an age advantage of 7 years, 100% more physical cores, a 128.6% more advanced lithography process, and 140% lower power consumption.
We couldn't decide between Intel Xeon L5640 and Intel Atom C3850. We've got no test results to judge.
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