Socket 1151 motherboards replaced socket 1150. The socket 1151 was introduced in August 2015. LGA1151 is called 1151 because it has 1151 contacts. The 1151 is compatible with Skylake desktop and server processors. These processors can have 2 or 4 cores.
Here’s some additional characteristics of LGA115 desktop and server motherboards:
- Supports DDR3L memory with data transfer speeds up to 1600 Mhz
- DDR4 memory support: up to 2133 mhz
- Up to three display interfaces supported
- Socket 1151 motherboards have 1151 contacts which are arranged as a grid 40×50
- Although the 1151 has the same width and height as socket 1150, they are not compatible. You cannot interchange the processors e.g LGA1151 processor cannot be used on a LGA1150 motherboard and vica versa
- LGA1151 socket supports 6th gen desktop core processors (CPUs)
- Supports 5th generation Xeon processors
- Loading mechanism allows easy installation and removal of processor
With support for both DDR3 and DDR4 memory, the LGA1151 socket does have some convenience about it. If you have upgraded from LGA1150 or are upgrading from this socket to LGA1151, you can run DDR3 memory from your old motherboard until the time that you have funds available to purchase DDR4 memory. Keep in mind that DDR3 does not support the speeds that DDR4 supports.