CPULaptopReleased 2014

Intel Core i7-4578U

2C/4T · 3.5 GHz · 28 W

The Intel Core i7-4578U is a dual-core, four-thread 4th Generation (Haswell) mobile processor fabricated on a 22nm process. It runs at a 3.00GHz base clock with Turbo Boost up to 3.50GHz, includes a 4MB L3 cache, and integrates Intel Iris Graphics 5100. Its 28W TDP and FCBGA1168 package made it well suited to compact all-in-one PCs and higher-performance ultrabooks.

General

Manufacturer: Intel
Model: Intel Core i7-4578U
Segment: Laptop
Generation: 4th Generation Intel Core
Codename: Haswell
Architecture: x86_64
Microarchitecture: Haswell
Release date: 2014
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Cores & clocks

Cores / threads: 2 cores / 4 threads
Base clock: 3.00 GHz
Boost clock: 3.50 GHz
TDP (design W): 28 W
Unlocked: ✕ No
L2 cache: 0.5 MB
L3 cache: 4 MB
Technology (nm): 22 nm
22 nm

Platform

Socket: FCBGA1168
2-CPU (multi-socket): ✕ No
Integrated GPU: Iris 5100
Clock: 1,200 MHz
Memory type: DDR3L-1333/1600, LPDDR3-1333/1600
2-channel
Memory size: Up to 16 GB
ECC memory: ✕ No
PCIe: PCIe 2.0 (12 lanes)

Instructions & AI

Instruction extensions: SSE4.1SSE4.2AVX2AES-NI
NPU: None

OS support

Windows: Windows 10
ChromeOS: ChromeOS
Linux: UbuntuFedoraArch Linux
Notes: Windows 10 runs on these processors, but Windows 11 requires 8th Gen Intel Core or newer, so 24H2, 25H2 and 26H2 are unsupported. Haswell implements SSE4.2 and AVX2 and therefore meets the x86-64-v3 baseline that current Ubuntu, Fedora and Arch builds assume. Machines of this era are supported by ChromeOS Flex.