Intel Core i3-8100B vs Intel Core i3-8109U: comparison
Comparison of Intel Core i3-8100B and Intel Core i3-8109U: key differences and a full specification table.
Key differences
Intel Core i3-8100B has more cores (4 vs 2), a higher base clock (3.6 GHz vs 3 GHz), a larger L3 cache (6 MB vs 4 MB) and a higher maximum memory size (64 GB vs 32 GB).
At the same time, Intel Core i3-8109U has a lower TDP (28 W vs 65 W).
Both processors match on: thread count (4), process node (14 nm), memory channels (2), PCIe version (3), maximum integrated graphics clock (1.05 GHz).
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 Core i3-8100B | Intel Core i3-8109U |
|---|---|---|
| Cores / threads | 4 / 4 | 2 / 4 |
| Max boost clock | — | 3.6 GHz |
| L3 cache | 6 MB | 4 MB |
| TDP | 65 W | 28 W |
| Process | 14 nm | 14 nm |
| Integrated graphics | UHD-графика Intel 630 | Intel Iris Plus Graphics 655 |
Full specification table
Differing values are highlighted. This is not a better/worse rating: numbers from different architectures are not always comparable.
| Parameter | Intel Core i3-8100B | Intel Core i3-8109U |
|---|---|---|
| General | ||
| Model | i3-8100B | i3-8109U |
| Codename | Coffee Lake | Coffee Lake |
| Segment | Mobile | Mobile |
| Product line | Процессоры Intel Core i3 8-го поколения | Процессоры Intel Core i3 8-го поколения |
| Process | 14 nm | 14 nm |
| Launch date | Q3 2018 | Q2 2018 |
| Status | Discontinued | Discontinued |
| Embedded options available | No | No |
| CPU | ||
| Cores | 4 | 2 |
| Threads | 4 | 4 |
| Multithreading (SMT/HT) | No | Yes |
| Base clock | 3.6 GHz | 3 GHz |
| Max boost clock | — | 3.6 GHz |
| Turbo Boost 2.0 frequency | — | 3.6 GHz |
| L3 cache | 6 MB | 4 MB |
| Bus speed | 8 GT/s | 4 GT/s |
| TDP | 65 W | 28 W |
| Configurable TDP-down | — | 20 W |
| cTDP-down base frequency | — | 1.9 GHz |
| Turbo Boost | Yes (2) | Yes (2) |
| 64-bit support | Yes | Yes |
| Instruction set width | 64 bit | 64 bit |
| Instruction set extensions | SSE4.1, SSE4.2, AVX2 | SSE4.1, SSE4.2, AVX2 |
| Memory | ||
| Max memory size | 64 GB | 32 GB |
| Memory types | DDR4 | DDR4, LPDDR3 |
| Memory channels | 2 | 2 |
| Max memory bandwidth | — | 37.5 GB/s |
| ECC memory supported | No | No |
| Graphics | ||
| Integrated graphics | UHD-графика Intel 630 | Intel Iris Plus Graphics 655 |
| Has integrated graphics | Yes | Yes |
| Graphics base frequency | 350 MHz | 300 MHz |
| Graphics max frequency | 1.05 GHz | 1.05 GHz |
| Graphics video max memory | 64 GB | 32 GB |
| Max displays | 3 | 3 |
| Max resolution (DP) | 4096x2304@60Hz | 4096x2304@60Hz |
| Max resolution (HDMI) | 4096x2304@30Hz | 4096x2304@30Hz |
| Max resolution (eDP) | 4096x2304@60Hz | 4096x2304@60Hz |
| DirectX | 12 | 12 |
| OpenGL | 4.5 | 4.5 |
| Graphics device ID | 0x3E9B | 0x3EA5 |
| Quick Sync Video | Yes | Yes |
| Clear Video HD | Yes | Yes |
| Clear Video | Yes | Yes |
| Graphics output | — | eDP/DP/HDMI/DVI |
| InTru 3D | Yes | Yes |
| 4K support | Yes, at 60Hz | Yes, at 60Hz |
| eDRAM | — | 128 MB |
| I/O and interfaces | ||
| PCI Express revision | 3 | 3 |
| PCI Express lanes | 16 | 16 |
| PCI Express configurations | Up to 1x16, 2x8, 1x8+2x4 | 1x4, 2x2, 1x2+2x1 and 4x1 |
| Package and thermal | ||
| Sockets supported | FCBGA1440 | FCBGA1528 |
| Max CPU configuration | 1 | 1 |
| Package size | 42mm x 28mm | 46x24 |
| 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 | Yes |
| Intel Boot Guard | Yes | — |
| Intel Software Guard Extensions | Yes | Yes |
| Intel Memory Protection Extensions | Yes | Yes |
| Stable IT Platform Program | No | No |
| Technologies | ||
| Enhanced SpeedStep | Yes | Yes |
| Idle States | Yes | Yes |
| Thermal Monitoring Technologies | Yes | Yes |
| Identity Protection Technology | Yes | Yes |
| Transactional Synchronization Extensions | No | No |
| Speed Shift Technology | — | Yes |
| Flex Memory Access | — | Yes |
| Optane Memory Supported | Yes | Yes |