Atom x7835FE vs Xeon Silver 4309Y
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 836 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Power efficiency | 10.83 | no data |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Ice Lake-SP (2021) | Amston Lake (2024−2025) |
| Release date | 6 April 2021 (4 years ago) | 1 October 2025 (less than a year ago) |
| Launch price (MSRP) | no data | $150 |
Detailed specifications
Xeon Silver 4309Y and Atom x7835FE 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 | 8 (Octa-Core) | 8 (Octa-Core) |
| Threads | 16 | 8 |
| Base clock speed | 2.8 GHz | 1.3 GHz |
| Boost clock speed | 3.6 GHz | 3.6 GHz |
| L1 cache | 64K (per core) | 96 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per module) |
| L3 cache | 12 MB (shared) | 6 MB (shared) |
| Chip lithography | 10 nm | 10 nm |
| Maximum case temperature (TCase) | 76 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Xeon Silver 4309Y and Atom x7835FE 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 |
| Socket | FCLGA4189 | Intel BGA 1264 |
| Power consumption (TDP) | 105 Watt | 12 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Silver 4309Y and Atom x7835FE. 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) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | - |
| Deep Learning Boost | + | - |
Security technologies
Xeon Silver 4309Y and Atom x7835FE technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
| SGX | Yes with Intel® SPS | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Silver 4309Y and Atom x7835FE are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Silver 4309Y and Atom x7835FE. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2667 | DDR4, DDR5, LPDDR5 |
| Maximum memory size | 6 TB | no data |
| Max memory channels | 8 | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel UHD Graphics 32EU |
Peripherals
Specifications and connection of peripherals supported by Xeon Silver 4309Y and Atom x7835FE.
| PCIe version | 4.0 | 3.0 |
| PCI Express lanes | 64 | 9 |
Pros & cons summary
| Recency | 6 April 2021 | 1 October 2025 |
| Threads | 16 | 8 |
| Power consumption (TDP) | 105 Watt | 12 Watt |
Xeon Silver 4309Y has 100% more threads.
Atom x7835FE, on the other hand, has an age advantage of 4 years, and 775% lower power consumption.
We couldn't decide between Intel Xeon Silver 4309Y and Intel Atom x7835FE. We've got no test results to judge.
Be aware that Xeon Silver 4309Y is a server/workstation processor while Atom x7835FE is a notebook one.
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