Xeon Silver 4309Y vs Atom C3858
Aggregate performance score
Xeon Silver 4309Y outperforms Atom C3858 by a whopping 306% based on our aggregate benchmark results.
Primary details
Comparing Atom C3858 and Xeon Silver 4309Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in performance ranking | 1607 | 612 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 1.14 | no data |
| Market segment | Server | Server |
| Series | Intel Atom | no data |
| Architecture codename | Goldmont (2016−2017) | Ice Lake-SP (2021) |
| Release date | 15 August 2017 (7 years ago) | 6 April 2021 (3 years ago) |
| Launch price (MSRP) | $332 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Atom C3858 and Xeon Silver 4309Y 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 | 12 (Dodeca-Core) | 8 (Octa-Core) |
| Threads | 12 | 16 |
| Base clock speed | 2 GHz | 2.8 GHz |
| Boost clock speed | 2 GHz | 3.6 GHz |
| Multiplier | 20 | no data |
| L1 cache | 672 KB | 64K (per core) |
| L2 cache | 12 MB | 1 MB (per core) |
| L3 cache | 12 MB | 12 MB (shared) |
| Chip lithography | 14 nm | 10 nm |
| Maximum core temperature | 83 °C | no data |
| Maximum case temperature (TCase) | no data | 76 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Atom C3858 and Xeon Silver 4309Y 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) | 2 |
| Socket | FCBGA1310 | FCLGA4189 |
| Power consumption (TDP) | 25 Watt | 105 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom C3858 and Xeon Silver 4309Y. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | + | no data |
| Speed Shift | no data | + |
| Turbo Boost Technology | - | 2.0 |
| Hyper-Threading Technology | - | + |
| TSX | - | + |
| Status | Launched | Launched |
| Deep Learning Boost | - | + |
Security technologies
Atom C3858 and Xeon Silver 4309Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | + |
| Secure Boot | + | no data |
| Secure Key | + | no data |
| SGX | - | Yes with Intel® SPS |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom C3858 and Xeon Silver 4309Y are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom C3858 and Xeon Silver 4309Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4: 2400 | DDR4-2667 |
| Maximum memory size | 256 GB | 6 TB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 38.397 GB/s | no data |
| ECC memory support | + | + |
Peripherals
Specifications and connection of peripherals supported by Atom C3858 and Xeon Silver 4309Y.
| PCIe version | 3 | 4.0 |
| PCI Express lanes | 16 | 64 |
| 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 | 3.04 | 12.35 |
| Recency | 15 August 2017 | 6 April 2021 |
| Physical cores | 12 | 8 |
| Threads | 12 | 16 |
| Chip lithography | 14 nm | 10 nm |
| Power consumption (TDP) | 25 Watt | 105 Watt |
Atom C3858 has 50% more physical cores, and 320% lower power consumption.
Xeon Silver 4309Y, on the other hand, has a 306.3% higher aggregate performance score, an age advantage of 3 years, 33.3% more threads, and a 40% more advanced lithography process.
The Xeon Silver 4309Y is our recommended choice as it beats the Atom C3858 in performance tests.
Should you still have questions on choice between Atom C3858 and Xeon Silver 4309Y, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
