Xeon Platinum 8558U vs Atom x5-E3940
Primary details
Comparing Atom x5-E3940 and Xeon Platinum 8558U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2309 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | 5x Intel Atom | no data |
| Power efficiency | 11.64 | no data |
| Architecture codename | Apollo Lake (2014−2016) | Emerald Rapids (2023) |
| Release date | 30 August 2014 (10 years ago) | 14 December 2023 (less than a year ago) |
| Launch price (MSRP) | no data | $3,720 |
Detailed specifications
Atom x5-E3940 and Xeon Platinum 8558U 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 | 4 (Quad-Core) | 48 (Octatetraconta-Core) |
| Threads | 4 | 96 |
| Base clock speed | 1.6 GHz | 2 GHz |
| Boost clock speed | 1.8 GHz | 4 GHz |
| L1 cache | 56K (per core) | 80 KB (per core) |
| L2 cache | 2 MB (shared) | 2 MB (per core) |
| L3 cache | 0 KB | 260 MB (shared) |
| Chip lithography | 14 nm | Intel 7 nm |
| Die size | no data | 2x 763 mm2 |
| Maximum case temperature (TCase) | 103 °C | 78 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Atom x5-E3940 and Xeon Platinum 8558U 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 | Intel BGA 1296 | FCLGA4677 |
| Power consumption (TDP) | 10 Watt | 300 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Atom x5-E3940 and Xeon Platinum 8558U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® AMX, Intel® SSE4.2, Intel® AVX, Intel® AVX2, Intel® AVX-512 |
| AES-NI | + | + |
| AVX | - | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | - | + |
| Deep Learning Boost | - | + |
Security technologies
Atom x5-E3940 and Xeon Platinum 8558U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| SGX | no data | Yes with Intel® SPS |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Atom x5-E3940 and Xeon Platinum 8558U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Atom x5-E3940 and Xeon Platinum 8558U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-1866 | DDR5 @ 4800 MT/s (1 DPC) |
| Maximum memory size | 8 GB | 4 TB |
| Max memory channels | no data | 8 |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel HD Graphics 500 | N/A |
Peripherals
Specifications and connection of peripherals supported by Atom x5-E3940 and Xeon Platinum 8558U.
| PCIe version | 2.0 | 5.0 |
| PCI Express lanes | 4 | 80 |
Pros & cons summary
| Recency | 30 August 2014 | 14 December 2023 |
| Physical cores | 4 | 48 |
| Threads | 4 | 96 |
| Power consumption (TDP) | 10 Watt | 300 Watt |
Atom x5-E3940 has 2900% lower power consumption.
Xeon Platinum 8558U, on the other hand, has an age advantage of 9 years, and 1100% more physical cores and 2300% more threads.
We couldn't decide between Atom x5-E3940 and Xeon Platinum 8558U. We've got no test results to judge.
Be aware that Atom x5-E3940 is a notebook processor while Xeon Platinum 8558U is a server/workstation one.
Should you still have questions on choice between Atom x5-E3940 and Xeon Platinum 8558U, ask them in Comments section, and we shall answer.
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