Intel · 2018
Intel Core i5-8259U CPU
The Intel Core i5-8259U is a 2018 mobile processor with four cores and eight threads, based on the Kaby Lake microarchitecture.
The Intel Core i5-8259U is a quad-core mobile processor released in April 2018. It features eight threads, a base clock of 2.30 GHz, and a boost clock of 3.80 GHz. Built on the 14 nm process, it has 6 MB of L3 cache and a TDP of 28 W. The CPU supports DDR4-2400 and LPDDR3-2133 memory across two channels, but does not support ECC memory. Integrated graphics are provided by Intel Iris Plus Graphics 655. The processor uses the FCBGA1528 socket and offers 16 PCIe 3.0 lanes. It includes instruction sets such as 64-bit, Intel SSE4.1, SSE4.2, and AVX2. The multiplier is locked, and the CPU was discontinued on June 30, 2025.
Benchmarks
| Blender Open Data score | 67.78 samples/min |
|---|---|
| Nero Score AI | 875 images/min |
| Nero Score AVC encode | 1,475 fps |
Specifications
| Microarchitecture | Kaby Lake |
|---|---|
| Cores | 4 |
| Threads | 8 |
| Base clock | 2.30 GHz |
| Boost clock | 3.80 GHz |
| L3 cache | 6 MB |
| Process node | 14 nm |
| TDP / base power | 28 W |
| Socket | FCBGA1528 |
| Memory support | DDR4-2400, LPDDR3-2133 |
| Memory channels | 2 |
| ECC memory support | No |
| Integrated graphics | Intel Iris Plus Graphics 655 |
| PCIe lanes (CPU) | 16 |
| PCIe version | 3.0 |
| Instruction sets | 64-bit, Intel SSE4.1, Intel SSE4.2, Intel AVX2 |
| Unlocked multiplier | No |
| Release date | 2018-04-01 |
| Release year | 2018 |
| Discontinued | 2025-06-30 |