Atom C3955 vs Xeon Silver 4112
Aggregate performance score
Xeon Silver 4112 outperforms Atom C3955 by a moderate 13% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1683 | 1783 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.45 | 0.38 |
| Market segment | Server | Server |
| Series | Intel Xeon Silver | Intel Atom |
| Power efficiency | 1.86 | 4.38 |
| Designer | Intel | Intel |
| Architecture codename | Skylake (server) (2017−2018) | Goldmont (2016−2017) |
| Release date | 11 July 2017 (8 years ago) | 15 August 2017 (8 years ago) |
| Launch price (MSRP) | $473 | $434 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Xeon Silver 4112 has 18% better value for money than Atom C3955.
Performance to price scatter graph
Detailed specifications
Basic parameters of Xeon Silver 4112 and Atom C3955: 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 | 4 (Quad-Core) | 16 (Hexadeca-Core) |
| Threads | 8 | 16 |
| Base clock speed | 2.6 GHz | 2.1 GHz |
| Boost clock speed | 3 GHz | 2.4 GHz |
| Multiplier | 26 | 21 |
| L1 cache | 256 KB | 896 KB |
| L2 cache | 4 MB | 16 MB |
| L3 cache | 8.25 MB | 16 MB |
| Chip lithography | 14 nm | 14 nm |
| Maximum core temperature | 76 °C | 78 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Xeon Silver 4112 and Atom C3955 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 (Multiprocessor) | 1 (Uniprocessor) |
| Socket | FCLGA3647 | FCBGA1310 |
| Power consumption (TDP) | 85 Watt | 32 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4112 and Atom C3955. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 | no data |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | - |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | 2.0 |
| Hyper-Threading Technology | + | - |
| TSX | + | - |
| Turbo Boost Max 3.0 | - | no data |
Security technologies
Xeon Silver 4112 and Atom C3955 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 Silver 4112 and Atom C3955 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4112 and Atom C3955. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2400 | DDR4: 2400 |
| Maximum memory size | 768 GB | 256 GB |
| Max memory channels | 6 | 2 |
| Maximum memory bandwidth | 115.212 GB/s | 38.397 GB/s |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4112 and Atom C3955.
| PCIe version | 3.0 | 3 |
| PCI Express lanes | 48 | 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 | 4x10/2.5/1 GBE |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 3.74 | 3.32 |
| Recency | 11 July 2017 | 15 August 2017 |
| Physical cores | 4 | 16 |
| Threads | 8 | 16 |
| Power consumption (TDP) | 85 Watt | 32 Watt |
Xeon Silver 4112 has a 13% higher aggregate performance score.
Atom C3955, on the other hand, has an age advantage of 1 month, 300% more physical cores and 100% more threads, and 166% lower power consumption.
The Intel Xeon Silver 4112 is our recommended choice as it beats the Intel Atom C3955 in performance tests.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
