Intel Core i7-8709G socket: BGA 2270

What the Core i7-8709G is

The Core i7-8709G is a four core, eight thread mobile processor with a 3.1 GHz base and up to 4.1 GHz boost. It carries 8 MB of Smart Cache and a 100 W package TDP on the 14 nm process. Intel announced it in January 2018 as the GH tier of Kaby Lake-G for faster play.

The package joins a Kaby Lake-H quad core with a Radeon RX Vega M GH die of 24 compute units and 4 GB of HBM2. The GH graphics run 1063 MHz base to 1190 MHz max with 204.8 GB per sec of HBM2 bandwidth. That outpaces the 20 unit GL tier in the same chassis class.

Intel HD Graphics 630 from 350 MHz to 1.10 GHz covers setup displays and quick sync video. The multiplier is locked. The 100 W package rating needs thicker dual fan cooling than the 65 W GL parts, so bodies run larger.

Socket and motherboard compatibility

The 8709G is soldered to the board in the BGA 2270 package and cannot be replaced. Upgrading means replacing the board or the whole system, so buyers should choose the GH tier at order time where play matters. The LGA, PGA and BGA: CPU package types explained guide explains soldered package trade offs.

Intel ARK lists Sockets Supported as FCBGA2270 with a 31 by 58.5 mm package. Boards pair the 100 W GH package with strong dual fan cooling in performance laptops and NUCs. The CPU to graphics traffic stays inside the package, leaving 8 PCIe 3.0 lanes visible for NVMe storage.

There is no socket retention and no graphics card to swap. The Intel Core i5-8305G is a 65 W GL alternative on the same package where thinner bodies beat peak graphics.

Memory, PCIe and cooling

Memory support covers DDR4-2400 SODIMM modules in two channels up to 64 GB for the CPU side. The graphics side uses 4 GB of HBM2 on the package. ECC is not supported. Two matched sticks give dual channel speed for play and creation.

PCI Express shows 8 user visible version 3.0 lanes for a fast NVMe SSD plus board devices. Cooling follows the 100 W package rating, so makers tune fan curves for sustained graphics loads rather than bursts.

Upgrade paths

There is no CPU or GPU upgrade path on BGA 2270. The only moves are more DDR4 where SODIMM slots allow it, a larger SSD, or a whole system replacement. GH buyers already top the package stack, so the next step is a full discrete GPU system.

Staying on this board, dual channel DDR4 and updated Radeon drivers help more than chasing clocks. The locked multiplier removes overclocking as a tuning option.