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Best RAM for the Intel Core i5-12400 CPU

Speed, Capacity, and Compatibility: Our Top Picks for the Best RAM to Pair with the Core i5 12400.

Best RAM for the Intel Core i5-12400 CPU Kevin Jones / TechReviewer

Last Updated: March 24, 2023

Written by Kevin Jones

Selecting the right memory for your PC can be overwhelming, with various factors to consider. When it comes to the Intel Core i5-12400 processor, choosing a compatible memory type that can handle its demands is crucial for optimal performance and reliability. As computer hardware experts, we've evaluated the available RAM options, considering key factors such as speed, capacity, compatibility, and price. Based on our analysis, we'll provide recommendations and weigh the pros and cons of each option to assist you in making an informed decision.

Drawing on our firsthand experience, quantitative measurements, and product knowledge, we'll provide an overview of how the current RAM generation has evolved from previous ones, identifying which performance changes will impact your overall experience with the Intel Core i5-12400 processor. By the end of this article, you'll have a clear understanding of how to choose the best RAM for your PC, specifically for the Intel Core i5-12400 processor.

Our objective is to offer you the most valuable information possible to assist you in making the best decision based on your requirements. In addition to our comprehensive analysis, we have included links to other helpful resources.

DDR5 - Top Picks
DDR4 - Top Picks
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Best Stock-Speed DDR5 RAM for 12400: Corsair Vengeance 4800 MHz

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Corsair Vengeance TechReviewer

The Corsair Vengeance (4800 MHz version) DDR5 RAM is a highly dependable option for users seeking a balanced performance upgrade to pair with their Intel Core i5 12400 CPU. With a 32 GB capacity in a 2-module kit, this RAM offers sufficient memory for intensive tasks like gaming, content creation, and video editing.

Find the Corsair Vengeance DDR5 4800 MHz RAM on Amazon (affiliate link).

This RAM boasts a clock speed of 4800 MHz and a latency of 17 ns (40-40-40-77 timings), enabling the Corsair Vengeance DDR5 RAM to deliver swift and efficient performance. The DDR5 iteration of this RAM has made significant strides compared to its predecessors, boasting faster speeds and reduced latency compared to previous generations, which positions it as one of the most cutting-edge memory modules available. It is well-suited for demanding tasks that necessitate speedy data processing.

The Corsair Vengeance DDR5 RAM is a valuable addition to any value gaming rig or workstation, perfectly complementing the Intel Core i5 12400 CPU. The modest voltage of 1.10 volts ensures that this RAM is energy-conscious and doesn't consume excessive power. The top-notch aluminum heatsinks offer superb thermal management and bestow the modules with a sleek and premium appearance while avoiding conflict with a CPU cooler. Furthermore, the Intel XMP 3.0 profile guarantees that the RAM is fine-tuned for Intel processors, delivering users a smooth and dependable experience.

The only downside to this RAM is that it has a lower clock speed, which is intentional since it's meant for people who want stock-speed DDR5 RAM without the desire to overclock.

Read the full overview of the Corsair Vengeance 32 GB DDR5-4800 CL40 RAM.

Best Overclocking DDR5 RAM for 12400: G.Skill RipJaws S5 5200 MHz

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G.Skill RipJaws S5 TechReviewer

The G.Skill RipJaws S5 (5200 MHz version) DDR5 RAM stands out as a superb option for users to pair with their Intel Core i5 12400 CPU and those who want the ability to overclock their RAM to higher speeds. This 32 GB kit, comprising two 16 GB modules, offers great memory capacity, making it perfect for intensive applications such as gaming, content creation, and video editing.

Find the G.Skill RipJaws S5 DDR5 5200 MHz RAM on Amazon (affiliate link).

Sporting an impressive clock speed of 5200 MHz and a latency of 11 ns (28-34-34-83 timings), the G.Skill RipJaws S5 DDR5 RAM delivers outstanding performance at breakneck speeds. It is well-suited for tasks that necessitate rapid data processing. The DDR5 iteration of this RAM has made significant strides compared to its predecessors, boasting faster speeds and reduced latency compared to previous generations, which positions it as one of the most cutting-edge memory modules available.

The G.Skill RipJaws S5 DDR5 RAM is essential to any high-performance gaming rig or workstation, working well with the Intel Core i5 12400 CPU. Its voltage of 1.35 volts is around average for most RAM. The premium aluminum heatsinks provide excellent thermal management and lend the modules a sophisticated and luxurious appearance. Furthermore, the Intel XMP 3.0 profile guarantees that the RAM is fine-tuned for Intel processors, delivering users a smooth and dependable experience.

The only downside to this RAM is that it's a little costly due to it being a higher clock speed DDR5 kit compared to the stock-speed version, but it's worth it for the speed boost.

Read the full overview of the G.Skill RipJaws S5 32 GB DDR5-5200 CL28 RAM.

Best Stock-Speed DDR4 RAM for 12400: Corsair Vengeance LPX 3200 MHz

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Corsair Vengeance LPX TechReviewer

The Corsair Vengeance LPX DDR4 RAM (3200 MHz variant) is a reliable choice for users looking to achieve a harmonious performance boost when paired with their Intel Core i5 12400 CPU. This 2-module kit offers a 32 GB capacity, providing ample memory for demanding tasks such as gaming, content creation, and video editing.

Find the Corsair Vengeance LPX DDR4 3200 MHz RAM on Amazon (affiliate link).

Featuring a clock speed of 3200 MHz and a 10 ns latency (16-20-20-38 timings), the Corsair Vengeance LPX DDR4 RAM ensures rapid and effective performance. However, it is worth noting that DDR4 technology is less cutting-edge than DDR5 and may deliver a different caliber of performance in certain situations. While DDR4 has made strides compared to its predecessors, it is less speedy and efficient than the most recent DDR5 iterations.

The Corsair Vengeance LPX DDR4 RAM is valuable for any budget-conscious gaming rig or workstation, harmonizing well with the Intel Core i5 12400 CPU. Its voltage of 1.35 volts is around average for most DDR4 RAM. The high-quality aluminum heatsinks provide excellent thermal management and endow the modules with a sleek, premium appearance that doesn't interfere with CPU coolers. The Intel XMP 2.0 profile also ensures that the RAM is optimally configured for Intel processors, offering users a stable and reliable experience.

The primary drawback of this RAM is its lower clock speed, which is by design as it caters to individuals who prefer stock-speed RAM without the need for overclocking and opt for DDR4 over DDR5.

Read the full overview of the Corsair Vengeance LPX 32 GB DDR4-3200 CL16 RAM.

Best Overclocking DDR4 RAM for 12400: Corsair Vengeance LPX 3600 MHz

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Corsair Vengeance LPX TechReviewer

The Corsair Vengeance LPX (3600 MHz version) DDR4 RAM is a highly dependable option for users seeking a balanced performance upgrade to pair with their Intel Core i5 12400 CPU and those who want the ability to overclock their RAM to higher speeds. With a 32 GB capacity in a 2-module kit, this RAM offers sufficient memory for intensive tasks like gaming, content creation, and video editing.

Find the Corsair Vengeance LPX DDR4 3600 MHz RAM on Amazon (affiliate link).

This RAM boasts a clock speed of 3600 MHz and a latency of 10 ns (18-22-22-42 timings), enabling the Corsair Vengeance LPX DDR4 RAM to deliver swift and efficient performance. With that said, DDR4 is not as advanced as DDR5 RAM and does not offer the same level of performance in some instances. While DDR4 has improved performance compared to older versions, it is not as fast or efficient as the latest iterations of DDR5 RAM.

The Corsair Vengeance LPX DDR4 RAM is a valuable addition to any value gaming rig or workstation, complementing the Intel Core i5 12400 CPU. Its voltage of 1.35 volts is around average for most DDR4 RAM. The top-notch aluminum heatsinks offer superb thermal management and bestow the modules with a sleek and premium appearance while avoiding conflict with a CPU cooler. Furthermore, the Intel XMP 2.0 profile guarantees that the RAM is fine-tuned for Intel processors, delivering users a smooth and dependable experience.

The only downside to this RAM is that it has a lower clock speed than DDR5, which is intentional since it's meant for people who want the less expensive DDR4 RAM.

Read the full overview of the Corsair Vengeance LPX 32 GB DDR4-3600 CL18 RAM.

Which RAM Is Compatible With the Core i5-12400?

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Memory Generations Supported by the 12400

The Core i5 12400 CPU supports both DDR4 and DDR5. For this CPU, you'll need to choose whether you want to build a system that supports either DDR4 or DDR5. Suppose you are upgrading memory in an existing computer. In that case, you will need to stick with the memory generation that the motherboard is currently using.

The generation of memory (e.g., DDR3, DDR4, or DDR5) must match what is supported by your motherboard. Motherboards only support a single generation of memory.

To learn more about the difference between DDR5 and DDR4, check out our article: DDR4 vs. DDR5? Which You Should Buy.

Maximum Memory Speeds Supported by the 12400

The maximum speed at which you can run PC memory depends on your CPU, motherboard, and the memory itself.

When using DDR4 memory, the Core i5 12400 CPU officially supports memory speeds up to 3200 MT/s. This maximum speed means that stock DDR4 performance will be maximized using DDR4-3200 memory.

When using DDR5 memory, the Core i5 12400 CPU officially supports memory speeds up to 4800 MT/s. This maximum speed means that stock DDR5 performance will be maximized using DDR5-4800 memory.

When overclocking memory, such as with an XMP profile, you can exceed these stock speeds officially supported by CPUs. Motherboard specifications will indicate their supported overclocked-memory speeds. To be able to overclock DDR memory, your motherboard chipset needs to support memory overclocking. Find which chipsets support overclocking in my article, Which Chipsets Work With Intel's Core i5-12400 CPU?.

RAM can also be underclocked to achieve compatibility. Underclocking can be used when you purchase memory that is faster than the maximum speed supported by the CPU or motherboard. However, precise underclocking also requires a motherboard that supports memory overclocking. Without this support, the memory may fall back to a slower speed than the maximum supported memory speed. To achieve the maximum memory speed without overclocking support, use the maximum speed supported by the motherboard and CPU.

By looking up a motherboard's specifications, you can verify whether it supports a particular speed. Additionally, the motherboard manufacturer's website will typically indicate which memory kits have been confirmed to be compatible.

DDR Generations (Without Overclocking)
DDR3 DDR4 DDR5
Max UDIMM (Unbuffered) Capacity 16 GB 32 GB 128 GB
Bandwidth 6400–17067 MB/s 12800–25600 MB/s 38400–57600 MB/s
Transfer Rate 800–2133 MT/s 1600–3200 MT/s 4800–7200 MT/s
Base Frequency 400–1067 MHz 800–1600 MHz 2400–3600 MHz
Effective Frequency 800–2133 MHz 1600–3200 MHz 4800–7200 MHz
Voltage 1.5 V 1.2 V 1.1 V
On-die ECC No No Yes

12400 ECC Memory Support

Most gaming and general-purpose desktop setups do not use ECC memory.

Error correction code (ECC) memory is a more expensive form of memory typically used for critical server and workstation use cases. The purpose of ECC memory is to detect and correct when a single bit in memory gets flipped unintentionally.

ECC memory will not work unless the motherboard and CPU both support ECC.

The Core i5 12400 doesn't support ECC memory.

Before Buying RAM

Before purchasing memory, review your motherboard specification to verify which speeds are supported. For example, if a DDR4 motherboard stated that it supports "DDR4 3400(O.C.) / 3333(O.C.) / 3300(O.C.) / 3200 / 3000," that would mean that it could support DDR4-3400, DDR4-3333, and DDR4-3300 with memory overclocking, and DDR4-3200 and DDR4-3000 at stock speeds. Motherboard specifications also indicate the maximum capacity per stick of RAM (DIMM) and across all slots.

Learn More About the Intel Core i5-12400

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You can find detailed 12400 specifications on Intel's site.

Other Places to Buy RAM

Other Considerations When Building a PC

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Want to brush up on other new technologies to consider when building a computer? Check out these articles:

A Note From the Authors

As technology experts, we are dedicated to providing accurate and helpful information on various technology products and services. Our goal is to provide valuable insights and recommendations that help our readers make informed decisions.

We understand that the technology industry is constantly evolving, and we strive to stay up-to-date with the latest trends and developments. However, we recognize that there may be occasions when errors or inaccuracies slip through, despite our best efforts.

That's why we welcome feedback from our readers and encourage them to reach out to us with any corrections or suggestions they may have. By working together, we can ensure that our content remains accurate, helpful, and up-to-date.

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