Xeon E3-1220L v2 vs Atom C3955
Aggregate performance score
Atom C3955 outperforms Xeon E3-1220L v2 by a whopping 158% based on our aggregate benchmark results.
Primary details
Comparing Atom C3955 and Xeon E3-1220L v2 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1484 | 2192 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.97 | no data |
| Market segment | Server | Server |
| Series | Intel Atom | no data |
| Power efficiency | 10.80 | 7.88 |
| Architecture codename | Goldmont (2016−2017) | Ivy Bridge (2012−2013) |
| Release date | 15 August 2017 (7 years ago) | 14 May 2012 (12 years ago) |
| Launch price (MSRP) | $434 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Atom C3955 and Xeon E3-1220L v2 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 | 16 (Hexadeca-Core) | 2 (Dual-core) |
| Threads | 16 | 4 |
| Base clock speed | 2.1 GHz | 2.3 GHz |
| Boost clock speed | 2.4 GHz | 3.5 GHz |
| Bus rate | no data | 5 GT/s |
| Multiplier | 21 | no data |
| L1 cache | 896 KB | 64 KB (per core) |
| L2 cache | 16 MB | 256 KB (per core) |
| L3 cache | 16 MB | 8 MB (shared) |
| Chip lithography | 14 nm | 22 nm |
| Maximum core temperature | 78 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Atom C3955 and Xeon E3-1220L v2 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 (Uniprocessor) | 1 |
| Socket | FCBGA1310 | FCLGA1155 |
| Power consumption (TDP) | 32 Watt | 17 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom C3955 and Xeon E3-1220L v2. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX |
| AES-NI | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | - | no data |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | - | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Demand Based Switching | no data | + |
| Fast Memory Access | no data | + |
Security technologies
Atom C3955 and Xeon E3-1220L v2 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | + |
| Secure Boot | + | no data |
| Secure Key | + | no data |
| Identity Protection | - | + |
| SGX | - | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom C3955 and Xeon E3-1220L v2 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom C3955 and Xeon E3-1220L v2. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4: 2400 | DDR3 |
| Maximum memory size | 256 GB | 32.23 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 38.397 GB/s | 25.6 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Atom C3955 and Xeon E3-1220L v2.
| PCIe version | 3 | 3.0 |
| PCI Express lanes | 16 | no data |
| USB revision | 3 | no data |
| Total number of SATA ports | 16 | no data |
| Max number of SATA 6 Gb/s Ports | 16 | no data |
| Number of USB ports | 8 | no data |
| Integrated LAN | 4x10/2.5/1 GBE | 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.
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 | 3.79 | 1.47 |
| Recency | 15 August 2017 | 14 May 2012 |
| Physical cores | 16 | 2 |
| Threads | 16 | 4 |
| Chip lithography | 14 nm | 22 nm |
| Power consumption (TDP) | 32 Watt | 17 Watt |
Atom C3955 has a 157.8% higher aggregate performance score, an age advantage of 5 years, 700% more physical cores and 300% more threads, and a 57.1% more advanced lithography process.
Xeon E3-1220L v2, on the other hand, has 88.2% lower power consumption.
The Atom C3955 is our recommended choice as it beats the Xeon E3-1220L v2 in performance tests.
Should you still have questions on choice between Atom C3955 and Xeon E3-1220L v2, ask them in Comments section, and we shall answer.
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