Atom C3858 vs i7-8665UE
Aggregate performance score
Atom C3858 outperforms Core i7-8665UE by a minimal 4% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1909 | 1885 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 0.88 | 0.38 |
| Market segment | Laptop | Server |
| Series | no data | Intel Atom |
| Power efficiency | 7.80 | 4.86 |
| Designer | Intel | Intel |
| Manufacturer | Intel | no data |
| Architecture codename | Whiskey Lake-U (2018−2019) | Goldmont (2016−2017) |
| Release date | 1 October 2018 (7 years ago) | 15 August 2017 (8 years ago) |
| Launch price (MSRP) | $409 | $332 |
Cost-effectiveness evaluation
Performance per price, higher is better.
i7-8665UE has 132% better value for money than Atom C3858.
Performance to price scatter graph
Detailed specifications
Core i7-8665UE 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 | 4 (Quad-Core) | 12 (Dodeca-Core) |
| Threads | 8 | 12 |
| Base clock speed | 1.7 GHz | 2 GHz |
| Boost clock speed | 4.4 GHz | 2 GHz |
| Multiplier | no data | 20 |
| L1 cache | 64 KB (per core) | 672 KB |
| L2 cache | 256 KB (per core) | 12 MB |
| L3 cache | 8 MB (shared) | 12 MB |
| Chip lithography | 14 nm | 14 nm |
| Maximum core temperature | no data | 83 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
Compatibility
Information on Core i7-8665UE 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 1528 | FCBGA1310 |
| Power consumption (TDP) | 15 Watt | 25 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-8665UE and Atom C3858. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| QuickAssist | no data | + |
| Turbo Boost Technology | no data | - |
| Hyper-Threading Technology | no data | - |
| TSX | + | - |
Security technologies
Core i7-8665UE 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 i7-8665UE 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 i7-8665UE and Atom C3858. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | 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 | Intel UHD Graphics 620 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-8665UE and Atom C3858.
| PCIe version | 3.0 | 3 |
| PCI Express lanes | 16 | 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 |
Synthetic benchmarks
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.
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. Other than that, Passmark measures multi-core performance.
Pros & cons summary
| Performance score | 2.76 | 2.87 |
| Recency | 1 October 2018 | 15 August 2017 |
| Physical cores | 4 | 12 |
| Threads | 8 | 12 |
| Power consumption (TDP) | 15 Watt | 25 Watt |
i7-8665UE has an age advantage of 1 year, and 66.7% lower power consumption.
Atom C3858, on the other hand, has a 4% higher aggregate performance score, and 200% more physical cores and 50% more threads.
Given the minimal performance differences, no clear winner can be declared between Intel Core i7-8665UE and Intel Atom C3858.
Be aware that Core i7-8665UE is a notebook processor while Atom C3858 is a server/workstation one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
