Atom C3858 vs Ultra 7 270HX Plus
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 37 | 1912 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 0.38 |
| Market segment | Laptop | Server |
| Series | no data | Intel Atom |
| Power efficiency | no data | 4.86 |
| Designer | Intel | Intel |
| Manufacturer | TSMC | no data |
| Architecture codename | Arrow Lake-HX Refresh (2026) | Goldmont (2016−2017) |
| Release date | 17 March 2026 (recently) | 15 August 2017 (8 years ago) |
| Launch price (MSRP) | no data | $332 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Core Ultra 7 270HX Plus and Atom C3858 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 | 20 (Icosa-Core) | 12 (Dodeca-Core) |
| Threads | 20 | 12 |
| Base clock speed | 2.4 GHz | 2 GHz |
| Boost clock speed | 5.3 GHz | 2 GHz |
| Multiplier | no data | 20 |
| L1 cache | 192 KB (per core) | 672 KB |
| L2 cache | 3 MB (per core) | 12 MB |
| L3 cache | 30 MB (shared) | 12 MB |
| Chip lithography | 3 nm | 14 nm |
| Die size | 243 mm2 | no data |
| Maximum core temperature | no data | 83 °C |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | no data | - |
| Unlocked multiplier | + | - |
Compatibility
Information on Core Ultra 7 270HX Plus and Atom C3858 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 | 1 (Uniprocessor) |
| Socket | Intel BGA 2114 | FCBGA1310 |
| Power consumption (TDP) | 55 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 7 270HX Plus and Atom C3858. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
Security technologies
Core Ultra 7 270HX Plus and Atom C3858 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | no data | + |
| Secure Boot | no data | + |
| SGX | no data | - |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 7 270HX Plus and Atom C3858 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 7 270HX Plus and Atom C3858. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5 | DDR4: 2400 |
| Maximum memory size | no data | 256 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Arc Xe-LPG Graphics 64EU | no data |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 7 270HX Plus and Atom C3858.
| PCIe version | 5.0 | 3 |
| PCI Express lanes | 24 | 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 |
Pros & cons summary
| Recency | 17 March 2026 | 15 August 2017 |
| Physical cores | 20 | 12 |
| Threads | 20 | 12 |
| Chip lithography | 3 nm | 14 nm |
| Power consumption (TDP) | 55 Watt | 25 Watt |
Ultra 7 270HX Plus has an age advantage of 8 years, 66.7% more physical cores and 66.7% more threads, and a 366.7% more advanced lithography process.
Atom C3858, on the other hand, has 120% lower power consumption.
We couldn't decide between Intel Core Ultra 7 270HX Plus and Intel Atom C3858. We've got no test results to judge.
Be aware that Core Ultra 7 270HX Plus is a notebook processor while Atom C3858 is a server/workstation one.
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