Intel Core i7-3667U socket: BGA 1023

What the Core i7-3667U is

Intel Core i7-3667U is a dual core Ivy Bridge mobile processor that Intel released in June 2012 for premium thin laptops. It runs at 2.0 GHz base with Turbo Boost 2.0 to 3.2 GHz, with 4 MB Intel Smart Cache and Hyper-Threading for 4 threads. Power is rated at 17 W on a 22 nm process. The higher base over the 3517U suits buyers who keep many office tabs open.

Graphics are Intel HD Graphics 4000 at 350 MHz to 1150 MHz. The block drives the internal panel and an external display, with Quick Sync for video work. The controller accepts DDR3, DDR3L and DDR3-RS at 1333 or 1600 MT/s, and the chip includes VT-x, VT-d and AES for business images.

Thin chassis pair it with HM77 class boards, small SSDs and careful fan tuning. Bursts to 3.2 GHz make foreground work feel quick, while sustained loads respect the slim thermal budget. The LGA, PGA and BGA: CPU package types explained guide explains the soldered tradeoff that buys thinness at the cost of service.

Socket and motherboard compatibility

The Core i7-3667U solders to BGA 1023 with 1,023 balls in a 31 by 24 mm footprint and cannot be moved. Premium thin makers qualify each model with a fixed board and BIOS, so another BGA part is not a field swap. Boards use slim layouts with soldered or slotted RAM depending on thickness.

The BIOS must list the exact Core i7-3667U string. Power is light, so ports, screen and battery decide the buy more than delivery. The CPU cooler compatibility by socket guide notes soldered mobile cooling stays board specific.

Memory, PCIe and cooling

Memory support is DDR3-1333 and 1600, two channels, up to 32 GB. Two channels feed the HD 4000 block that shares RAM, so a single module slows display work. The thinnest bodies solder memory and lock size at purchase.

PCI Express lanes come from the CPU in a board specific layout for Wi-Fi and SSDs. There is no graphics slot worth considering at 17 W. Drive quality and wireless generation shape daily speed more than lane counts.

Cooling is a slim 17 W spreader and fan tuned for bursts. Clear vents hold the 3.2 GHz peak longer, while dust forces early throttling. Battery age can also cap turbo policy on old thin laptops.

Upgrade paths

There is no CPU upgrade path on soldered BGA 1023. The Core i7-3667U cannot be removed, so a faster thin laptop means a new board or a new device. A nearby soldered comparison is Intel Core i7-3517U, which trades base clock for the same envelope.

A platform move means a new thin laptop on a current BGA package with DDR4 memory and modern wireless. Keep the old machine for travel after wiping the drive.