Intel Celeron 3865U vs Intel Celeron 3955U: comparison
Comparison of Intel Celeron 3865U and Intel Celeron 3955U: key differences and a full specification table.
Key differences
Intel Celeron 3955U has a higher base clock (2 GHz vs 1.8 GHz) and a newer PCIe version (3 vs 2).
Both processors match on: core count (2), thread count (2), L3 cache (2 MB), TDP (15 W), process node (14 nm), maximum memory size (32 GB), memory channels (2), maximum integrated graphics clock (900 MHz).
These are specification values: they show differences between the models but do not determine a performance winner. For a specific workload, rely on independent benchmarks.
Key specifications
| Parameter | Intel Celeron 3865U | Intel Celeron 3955U |
|---|---|---|
| Cores / threads | 2 / 2 | 2 / 2 |
| L3 cache | 2 MB | 2 MB |
| TDP | 15 W | 15 W |
| Process | 14 nm | 14 nm |
| Integrated graphics | Intel HD Graphics 610 | Intel HD Graphics 510 |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Celeron 3865U | Intel Celeron 3955U |
|---|---|---|
| General | ||
| Model | 3865U | 3955U |
| Codename | Kaby Lake | Skylake |
| Segment | Mobile | Mobile |
| Product line | Процессор Intel Celeron серии 3000 | Процессор Intel Celeron серии 3000 |
| Process | 14 nm | 14 nm |
| Launch date | Q1 2017 | Q4 2015 |
| Status | Discontinued | Launched |
| Servicing status | — | End of Servicing Lifetime |
| End of servicing updates | — | 09/30/2022 |
| Embedded options available | No | Yes |
| Use conditions | — | Industrial Commercial Temp, Embedded Broad Market Commercial Temp, PC/Client/Tablet |
| CPU | ||
| Cores | 2 | 2 |
| Threads | 2 | 2 |
| Multithreading (SMT/HT) | No | No |
| Base clock | 1.8 GHz | 2 GHz |
| L3 cache | 2 MB | 2 MB |
| Bus speed | 4 GT/s | 4 GT/s |
| TDP | 15 W | 15 W |
| Configurable TDP-down | 10 W | 10 W |
| Turbo Boost | No | No |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2 | SSE4.1, SSE4.2 |
| Memory | ||
| Max memory size | 32 GB | 32 GB |
| Memory types | DDR4, LPDDR3, DDR3L | DDR4, LPDDR3, DDR3L |
| Memory channels | 2 | 2 |
| Max memory bandwidth | 34.1 GB/s | 34.1 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | Intel HD Graphics 610 | Intel HD Graphics 510 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 300 MHz | 300 MHz |
| Graphics max frequency | 900 MHz | 900 MHz |
| Graphics video max memory | 32 GB | 32 GB |
| Max displays | 3 | 3 |
| Max resolution (DP) | 4096x2304@60Hz | 4096x2304@60Hz |
| Max resolution (HDMI) | 4096x2304@24Hz | 4096x2304@24Hz |
| Max resolution (eDP) | 4096x2304@60Hz | 4096x2304@60Hz |
| DirectX | 12 | 12 |
| OpenGL | 4.4 | 4.4 |
| Graphics device ID | 0x5906 | 0x1906 |
| Quick Sync Video | Yes | Yes |
| Clear Video HD | Yes | Yes |
| Clear Video | Yes | — |
| Graphics output | eDP/DP/HDMI/DVI | eDP/DP/HDMI/DVI |
| 4K support | Yes, at 60Hz | Yes, at 60Hz |
| I/O and interfaces | ||
| PCI Express revision | 2 | 3 |
| PCI Express lanes | 10 | 12 |
| PCI Express configurations | 1x4, 2x2, 1x2+2x1 and 4x1 | 1x4, 2x2, 1x2+2x1 and 4x1 |
| Package and thermal | ||
| Sockets supported | FCBGA1356 | FCBGA1356 |
| Max CPU configuration | 1 | 1 |
| Package size | 42mm X 24mm | 42mm X 24mm |
| TJUNCTION | 100 °C | 100 °C |
| Security and virtualization | ||
| Virtualization (VT-x / AMD-V) | Yes | Yes |
| Virtualization for Directed I/O (VT-d) | Yes | Yes |
| Extended Page Tables (EPT) | Yes | Yes |
| AES-NI | Yes | Yes |
| Execute Disable Bit | Yes | Yes |
| Intel Trusted Execution Technology | No | No |
| Secure Key | Yes | Yes |
| Intel OS Guard | Yes | No |
| Intel Software Guard Extensions | Yes | Yes |
| Intel Memory Protection Extensions | Yes | No |
| Stable IT Platform Program | No | No |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | — | Yes |
| Transactional Synchronization Extensions | No | No |
| Speed Shift Technology | Yes | — |
| Flex Memory Access | Yes | Yes |
| Smart Response Technology | Yes | Yes |