LGA 1151 Vs 1155: In-Depth Comparison 2020

lga 1151 vs 1155

Land grid array has come with many CPU standard sockets for PCs. Among those LGA 1151 and 1155 are well-known devices for attaching your CPU to your motherboard.

However, sockets tell us the offspring of the CPUs. LGA socket’s name is dependent on the number of socket’s pins.

Are you swinging to choose on LGA 1151 or 1155? Haven’t worried. Just concentrate on this article.

In this article, we are going to equip you with an in-depth comparison of LGA 1151 vs 1155.

 Difference Between LGA 1151 vs 1155

 Though LGA 1151 and LGA 1155 both are acceptable for their performance, we show here some little difference.

 LGA 1151

 LGA 1151 or socket H4, is to renew the configuration of LGA 1150 (known as H3 socket). This socket H4 has come with the latest Intel processors as of 2015.

LGA 1151 has arrived in two generations, while the first modification of this socket aid Intel’s Kaby Lake and Skylake. Alternatively, the Coffee Lake is assisted in second modification.

This socket has supported six varied chipsets like B150, H110, H170, Q150, Q170, and Z170.

 LGA 1155

 LGA 1155, also named socket H2 is to renew the design of Socket 1156 ( known as H socket). This socket was introduced in January 2011.

The second offspring tried this socket based on Sandy Bridge and the third offspring founded on Ivy Bridge microarchitectures.

To include six new chipsets, this type of socket has a total of twelve motherboard chipsets. The Sandy Bridge processors contain H61,B65, P67, Q67,and Z68 chipsets. The Ivy Bridge has come to include  Q75, B75,Q77, H77, Z77,and Z75 chipsets.

Comparison Chart

For getting accurate information, you see the comparison chart .

LGA 1151LGA 1155


Sky lake, Kaby Lake, and Coffee lake.Sandy Bridge, Ivy Bridge

Number of pins

1151 pins to contact the pads on the processors.1155 pins to make contact


LGA 1150LGA 1156


LGA 1200LGA 1150

Memory support


More About LGA 1151

 LGA 1151 brings into the world two generations, we have mentioned. Now, we express here in detail.

 First revision memory support

Maximum motherboards support DDR4 memory and a smaller number of the socket aid DDR3(L) memory.

Moreover, DDR4 and DDR3(L) are supported at the least number of motherboards. But you can install only one type of memory.

Second revision memory support

 The second-generation motherboards aid only DDR4 memory.


 Skylake, Kaby lake, and Coffee lake chipsets aid VT-d, Intel Clear Video Technology, Intel Rapid Storage Technology, and Intel Wireless Display Technology.

Depending on the motherboards model, LGA 1151 socket aid varying video outputs like DVI, HDMI 1.4 or Display Port  1.2.

Only motherboards qualified with Intel’s Alpine Ridge Thunderbolt controller aid HDMI 2.0 but VGA output is discretionary.

Skylake, Kaby Lake, and Coffee Lake don’t aid the Legacy conventional PCI interface.

Latest models

This LGA 1151 socket works for Intel’s 6th offspring, 7th offspring, and 8th offspring core, Pentium, Celeron, Xeon E3, and Xeon E processors.

Now we present here the latest models of LGA 1151 socket.

  ModelsFamily Price
i9-9900TCore i9 (Coffee Lake R)$439.00
i9-9900KSCore i9 (Coffee Lake R)$513.00
i9-9900KFCore i9 (Coffee Lake R)$488.00


For more details check out What Are The Best LGA 1151 CPUs in 2020?

Some features of Skylake, Kaby Lake, and Coffee Lake’s chipsets:

  • All chipsets support DDR4 (max.64GiB total; 16GiB per slot) or DDR3(L) (max.32GiB total; 8GiB per slot).
  • The maximum chipsets processor PCI Express V3.0 configuration is 1×16.
  • Independent Display support is 3/2 or 3/3.
  • Socket chipset TDP and chipset lithographies are 6w and 22 nm.
  • The maximum chipsets are DIMM slots 2/4 and SATA 3.0ports 4/6.
  • Only Q170 chipset supports Intel Active Management, Trusted Execution and vPro Technology.

More About LGA 1155

LGA 1155 comes with the latest generation of Intel Celeron, Pentium, Core, i3/i5/i7, and Xeon desktop and server processors.

This type of socket H2 works up to 4 CPU cores, up to 8MB of L3 Cache, and operates the frequency varying from 1.2 GHz to 3.7 GHz.

LGA 1155 also supports Dual-channel DDR3 memory with data up to 1600 MHz, Direct Media Interface 2.0 running at 5GT/s, and PCI Express 2.0 and 3.0 interfaces.

Without Independent Loading Mechanism the socket’s size is 1.67″ ×1.67″ (4.25cm×4.25cm).

To know more details with price read 7 Best LGA 1155 CPU: Top Gaming Picks for 2020

Some features of Sandy Bridge chipsets:

Excepting B65, Q65, and Q67 Sandy Bridge chipsets, aid both Sandy and Ivy Bridge CPUs through a BIOS upgrade.

  • Without P67 chipset, other Sandy Bridge chipsets allow using built-in GPU with Intel Clear Video Technology.
  • The chipsets Maximum USB 2.0 port is 14.
  • Maximum SATA 2.0/3.0 ports support 4/2.
  • Chipset lithography and maximum TDP are 65 nm and 6.1W.
  • Sandy Bridge-based processors support up to DDR3-1333 memory.

Some features of Ivy Bridge chipsets:

  • Ivy Bridge-based processors will aid up to DDR3-1600.
  • The maximum chipsets allow using built-in GPU.
  • These chipsets support Intel Clear Video Technology.
  • Maximum USB 2.0/3.0 ports support 10/4.
  • Maximum TDP and Chipset lithography are 6.7W and 66nm.

Last Words

Hopefully, you grab the right decision to choose the best one from LGA 1151 vs 1155. We made an effort to provide you accurate data and comparison on this issue.


The tech geek and professional writer with 6+ years of experience. Love to play with trendy and upcoming technology. I contributed so many sites related to tech. But one thing I experienced, no exact info available properly about instant problem of our devices. Finally, I desired to create a blog that will help people like me. And the Minitipsx.com is the result of my dream. Oh please remove all kinds of confusion rather stay relax as every single info I provide from core research of my crazy team.

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