Intel Core i3-6320 socket: LGA 1151

What the Core i3-6320 is

The Core i3-6320 closes the Skylake i3 stack on LGA 1151 with the highest fixed clock in its class. Intel released it in September 2015 with two cores and four threads at 3.9 GHz and 51 W. Four megabytes of Smart Cache carry the chip. The design suits office fleets where single thread speed matters more than core count.

HD Graphics 530 drives three displays from 350 MHz to 1150 MHz. The process is 14 nm. The multiplier is locked and Turbo Boost is absent, so 3.9 GHz is the ceiling in all loads. DDR4-1866 and 2133 plus DDR3L in two channels feed the part with up to 64 GB.

Against the Intel Core i3-6300 at 3.8 GHz the 6320 adds 100 MHz for a small premium in response. Against quad i5 parts it gives up two cores for lower cost and power. Shops that run Office, browsers and video calls pick it where threads and graphics decide the feel. The 51 W rating fits slim towers with stock cooling.

Socket and motherboard compatibility

The 6320 fits LGA 1151 on 100 series boards such as H110, B150, H170 and Z170. Board makers list Skylake i3 parts with 2015 BIOS builds. Memory slots may be DDR4 or DDR3L depending on the board, and the two types never mix on one board.

LGA 1150 boards cannot take this chip. The Socket vs chipset: what decides whether a CPU works guide explains why the pinout blocks older boards. A 200 series board also accepts the chip after a BIOS update, but 100 series remains the natural match for a 2015 build. Check the maker CPU support list before pairing a used board with this SKU.

Memory, PCIe and cooling

DDR4-1866 and 2133 in two channels suit office desktops with SSDs. Matched pairs help HD 530 graphics in video calls. Start with 8 GB for fleets and 16 GB for heavy browser use. DDR3L boards take 1333 and 1600 modules where DDR4 slots are absent.

PCIe 3.0 with 16 lanes from the CPU serves a single graphics slot or NVMe adapter. Most 6320 builds use integrated graphics, so lanes often sit idle behind chipset storage and USB. A small discrete card fits where triple 4K output needs help.

Cooling uses the LGA 1151 75 mm mount from the CPU cooler compatibility by socket guide. Boxed packs ship with a stock cooler sized for 51 W. Tower cases run quietly with low fan curves.

Upgrade paths

On the same socket the Intel Core i3-6300 saves money at 3.8 GHz with the same cache and power. The Intel Core i5-6400 moves to four cores at 2.7 GHz to 3.3 GHz for heavier multitasking. Both share LGA 1151 boards, so a used swap stays simple where the BIOS lists the target.

A move to Kaby Lake i3 parts needs only a BIOS check on 100 series or a 200 series board. Past DDR3 systems need new memory for DDR4 boards. The 6320 covers 2015 desks where a fast dual core with solid graphics must deploy at low power.