Xeon Silver 4509Y vs A9-9420
Primary details
Comparing A9-9420 and Xeon Silver 4509Y processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2502 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | AMD Bristol Ridge | no data |
| Power efficiency | 5.96 | no data |
| Architecture codename | Stoney Ridge (2016−2019) | Sapphire Rapids (2023−2024) |
| Release date | 31 May 2016 (8 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $563 |
Detailed specifications
A9-9420 and Xeon Silver 4509Y 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 | 2 (Dual-core) | 8 (Octa-Core) |
| Threads | 2 | 16 |
| Base clock speed | 3 GHz | 2.6 GHz |
| Boost clock speed | 3.6 GHz | 4.1 GHz |
| L1 cache | 160 KB | 80 KB (per core) |
| L2 cache | 1 MB (shared) | 2 MB (per core) |
| L3 cache | no data | 22.5 MB (shared) |
| Chip lithography | 28 nm | Intel 7 nm |
| Die size | 125 mm2 | no data |
| Maximum core temperature | 90 °C | no data |
| Maximum case temperature (TCase) | 74 °C | 84 °C |
| Number of transistors | 1,200 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on A9-9420 and Xeon Silver 4509Y 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 | 2 |
| Socket | FT4 | FCLGA4677 |
| Power consumption (TDP) | 15 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by A9-9420 and Xeon Silver 4509Y. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Virtualization, | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
A9-9420 and Xeon Silver 4509Y technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by A9-9420 and Xeon Silver 4509Y are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by A9-9420 and Xeon Silver 4509Y. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 @ 4400 MT/s (1 DPC &2DPC) |
| Maximum memory size | no data | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Radeon R5 | N/A |
Peripherals
Specifications and connection of peripherals supported by A9-9420 and Xeon Silver 4509Y.
| PCIe version | 3.0 | 5 |
| PCI Express lanes | 8 | 80 |
Pros & cons summary
| Recency | 31 May 2016 | 14 December 2023 |
| Physical cores | 2 | 8 |
| Threads | 2 | 16 |
| Power consumption (TDP) | 15 Watt | 125 Watt |
A9-9420 has 733.3% lower power consumption.
Xeon Silver 4509Y, on the other hand, has an age advantage of 7 years, and 300% more physical cores and 700% more threads.
We couldn't decide between A9-9420 and Xeon Silver 4509Y. We've got no test results to judge.
Be aware that A9-9420 is a notebook processor while Xeon Silver 4509Y is a server/workstation one.
Should you still have questions on choice between A9-9420 and Xeon Silver 4509Y, ask them in Comments section, and we shall answer.
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