Best LGA 1155 CPU in 2021 [Socket 1155 / Socket H2 / Socket LGA1155]

We all want our PC to provide us with super-fast performance. However, for this just paying attention to your monitor, mouse or keyboard won’t do the job. You need to acquire a good processor. The processor is the brain of the computer and helps to enhance its functionality and performance. A beefy processor will provide you with great PC performance.

The LGA 1155 CPU is quite trendy and popular these days. They are known for their stable performance and durability. Now, there are plenty of processors that are available with the LGA 1155 socket. For your ease, we have selected a total of 5 CPUs that can best provide the performance you desire.

These CPUs provide you unique features and functions. They all excel in one another in various ways. Since time is of the essence and we all live in this time-starved world, so if you want to quickly conclude without going through the whole article then we recommend you to see Intel Core i7-3770K. This quad-core processor provides you with beefy performance.

The Intel Core i7 3770K is known to be the fastest LGA 1155 CPU, 4 core processor with 8 threads. It supports an 8MB  L3 cache and features dual memory channels. These channels allow it to hold up to 32 GB of memory. Its clock speed is 2.5 GHz and provides you with good power conservation functions. It is certainly worth the try!

Best LGA 1155 CPU List

If you are in a hurry, then go through the comparison table of our 5 best processor for LGA 1155 CPUs. Their distinct specifications have been mentioned. See the table to increase your knowledge about each one of them!

Check Also: LGA 1150 CPU [Socket H3] | LGA 1151 [Socket H4]| LGA 1200

LGA 1155 CPUsFeaturesPrice
Intel Core i7-2600KIntel HD graphics 3000, Intel Turbo Boost Technology, Speed: 3.4Ghz, 4-core  Check Price
Intel Core i7-2700K4-core, Turbo Boost Technology, speed: 3.5Ghz to 3.9Ghz.Check Price
  Intel Core i7-3770K4-core, speed: 3.5Ghz, supports 32 GB memory, Intel HD Graphics 4000Check Price
  Intel Xenon E3-1270 V6Speed: up to 4.2 GHz, turbo boost technology, 4-core, supports DDR4-2400Check Price
  Intel Core i5 3350P4-core, 3.1Ghz, M6B cacheCheck Price

1. Intel Core i7-2600K

Best Quad-Core Processor for gaming


  • 4 cores and 8 threads
  • Intel SpeedStep Technology
  • Low power consumption
  • Intel turbo boost technology


  • Needs a new motherboard

We all want to be masters of a decent PC that boasts robust performance. If you want a PC that can effectively deal with your multi-tasking and provide you with lag-free performance then you need to invest in an Intel Core i7-2600K processor.


Intel Core i7-2600K was launched by the Intel brand in 2010. This CPU comprises an LGA 1155 socket and it shocked everyone with its smooth functionality. For video editing, gaming, and office work, this LGA 1155 Cpu can handle all of it without any lag.

This CPU is a quad-core meaning it posses 4 cores to effectively deal with your multitasking. It even has 8 threads. Similarly, to help you be productive and reach your full potential it has Intel HD Graphics 3000. With this beast around, you get to work on and create marvelous things. It has an 8M cache.

With 12.8 ounces weight, it shows off with a 3.4 GHz base frequency. The Intel Core i7-2690K features Intel turbo boost technology which targets to provide you with effective performance. It even supports dual channel DDR3 memory and boasts 95W Thermal design power. It has intel speed step technology.


Intel Core i7-2600K is a good performance processor that provides you with great speed, low power consumption, and many other features. Its incredible specs will surely make its purchase worthwhile!

2. Intel Core i7-2700K

LGA 1155 BX80623I72700K


  • Great performance
  • Fairly priced
  • Integrated HD graphics 3000
  • Turbo boost technology


  • Very expensive
  • Slower than Core i7-2600K
  • Integrated graphics need improvement

This LGA 1155 CPU provides you with beefy performance with zero latency. It’s fast and assists you in completing multiple tasks. This sweet device was launched in 2011 by the Intel brand. The Intel corporation guarantees that this processor would assist you in running multiple applications smoothly.


Showing off with the glorious LGA 1155 socket, this incredible device provides you with superior performance even under heavy workloads. It comprises 4 cores and provides immense workability. It has a built-in Intel HD graphic 3000 for you to bring forth your creativity.

This stunning device provides you with a graphic base frequency of 850MHz which is quite amazing. The maximum graphic frequency that this beast shows off is 1.35GHz. The Core i7-2700K provides a 3.5Ghz frequency which can be maximized to 3.9Ghz with turbo boost technology.

Weighing 9.6 ounces, this device provides you with an 8M smart cache. It has 95W TDP which means that it can provide you with great power conversation with an unhindered epic performance. This stunning device won’t heat up while operating and stays cool when used for longer hrs. It’s a bit expensive, however, its features are worth the price.


Intel Core i7-2700K is a decent lightweight CPU providing you with great power conservation features long with seamless and smooth performance. Although it’s expensive it will certainly provide you with a great working experience.

3. Intel Core i7-3770K


  • Reliable and durable
  • Intel speed step technology
  • Good Performance


  • GPU performance needs improvement

We all want to purchase a PC that won’t slow down under a heavy workload. One that will provide good performance and will show off with smooth functionality. For speedy and zero-latency performance, the Intel Core i7-3770K is the best pick for you. Its smooth functionality will surely impress you.


Launched in 2012, this 7.1-ounce processor features an LGA 1155 socket which makes sure that your PC provides you with optimized performance. Incorporated in it is an Intel HD Graphics 4000 as a result of which you get to view snappy visuals. You can work on various creative tasks thanks to it.

Intel Core i7-3770K is a 4 core processor with 8 threads. This quad-core processor enables you to handle multiple tasks and open various websites securely. With a base frequency of 3.5Ghz, this device further hosts an 8M Intel cache. Apart from that, it sports 2 memory channels which can hold up to 32 GB of memory.

To top it off, this incredible processor has improved Intel speed step technology which provides you with incredible performance under varying voltage. Under voltage fluctuations, your PC will still provide you with great processing skills. This amazing CPU remains cool and won’t get overheated.


Intel Core i7-3770K is an LGA 1155 CPU that provides you with smooth functioning and great performance. Its great processing skills, remarkable workability, and cooling feature make it ideal for your use!

4. Intel Xenon E3-1270 V6

Best CPU Processor


  • Good performance
  • Great reliability
  • Has LGA 1151 socket.


  • Lacks built-in graphics

If functionality and workability are the features you are looking for then try purchasing the Intel Xenon E3-1270 V6. This durable and reliable processor will surely bewilder you with its action-packed features. Launched in 2017, it belongs to the Xenon E3 series. Let’s see its features!


Crafted on Kaby Lake 14nm, this device provides you with great performance and smooth functioning. Weighing 11.2 ounces, this device has 4 cores. It doesn’t overheat and enables you to open and work on multiple big apps. Showing off with 8 threads and 4 cores, it provides fast and great workability.

It has about 3.8Ghz base frequency and with the assistance of the turbo boost technology, the frequency can be enhanced to 4.2Ghz.  Delivering a good performance at low power consumption, it supports 72W TDP. Under varying voltage fluctuations, it makes sure that your PC processing skills remain stable and good.

Now, for the memory, it can hold up to 2-channel DDR4-2400 memory. It even features an 8M L3 cache. With this versatile CPU, you can work simultaneously on multiple tasks and with much efficiency. However, unlike many other processors, it lacks built-in graphics.


Intel Xenon E3-1270 V6 is a reliable processor that boasts beefy performance. It has great speed but unlike its predecessors, it Lacks built-in graphics. Apart from that, it provides great features and smooth functionality making it a valid contender for your investment.

5. Intel Core i5 3350P

LGA 1155 BX80637i53350P


  • Great durability
  • Great reliability
  • Good performance


  • Lacks integrated graphics

The Intel brand has launched many remarkable and stunning processors. Its processors are famous for withstanding heat and providing smooth functionality. Intel Core i5 3350P is one of their processors that promises to provide you with an everlasting experience. Launched in late 2012, this beast will surely shock you with its good performance


The Intel Core-i5 3350P is a lightweight processor weighing 14.7 ounces. This small processor features LGA 1155 socket which ensures to provide you with great stability and incredible performance. It’s a 4 core processor and provides you with great power to work on numerous big and small applications.

This model provides you with a great base clock speed of 3.1 GHz. You can open and work on various documents, and even on big spreadsheets with zero latency. Its unhindered and stable performance is what impresses most users. The PC will deliver you with smooth functioning which will surely save a lot of your time.

Intel Core-i5 3350P features a 6M Intel smart cache. It provides you with a safe and secure view of various websites. With this LGA 1155 CPU, your PC will surely be speedy and won’t slow down even under various workloads.


Intel Core-i5 3350P is a good performance processor that provides smooth functioning. It’s very reliable and comes under a reasonable price range. It’s certainly worth the try!


What is the fastest LGA 1155 CPU?

The fastest LGA 1155 CPU is either Intel Core i7-3770 or Intel Core i7-3770K. They both provide great performance and have been loaded with power conservation features. The Intel Core i7-3770K provides a base frequency of 3.5GHz and provides you with a maximum frequency of up to 3.9Ghz. This amazing processor can be paired up with a GTX 1600ti graphic processor. Apart from that, it supports up to 32 GB of memory.

What CPUs are compatible with LGA 1155?

LGA 1155 is the most famous nowadays. It’s versatile and provides you with compatibility with various apps. It can be used with either i5, i3, i7, Pentium, or even Intel Celeron. Apart from that, it is even compatible with server processors as well but only those who feature 8M cache, have up to 4 cores, and show with 1.2Ghz-3.7Ghz or more frequency.

How to install lga 1155 CPU

For the lga 1155 Cpu installation, first, you need to open the load plate of the motherboard. For that, you need to push the lever down with little force. After this step, the load plate will loosen up. You will see socket contacts. While putting your CPU in that socket just make sure that the socket pins and the CPU pins align with each other. Put back the protective cover and the load plate and your CPU is installed!


The market is loaded with a variety but finding the right processor for you can be quite difficult. However, among all the variety available, the Intel Core i7-3770K Quad-Core is the top-rated among all of them. It sports great performance with its 4 cores, 8 threads and can brace up to 32 GB memory.

Anyhow, it’s your decision. It’s up to you which one would be best for you. But make sure that whatever you purchase offers you great speed and is very durable. One that’s not prone to overheating, because overheating can lead to the fast deterioration of its performance. We hope that you can purchase the perfect processor for your monitor!

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Nick Miller

It's Nick Miller a 25 year old tech enthusiast and senior editor at Flexgate, i try to make tech simple for the everyday person. You will find review about tech, tools and Computer hardware here.

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