DDR4 2400 Vs 2666 MHz Ram – See What’s The Key Differences?

From the hard drive, the data is been taken by RAM and this includes the programs and games. The component has to hold this information while you are enjoying that program or game. And that’s one main reason why the RAM memory usually is much faster than what your standard hard drive shows. The same goes for SSD.

That’s one reason why RAM is getting faster with the passing time. But the point here is that does a faster Ram actually means better performance. Is it really necessary to have a 2666MHz instead of a little lesser 2400MHz?

Our today’s comparison is going to be the answer to that confusion. It’s about who’s actually better between the DDR4 2400 vs 2666 and which one should you be investing your money on.

DDR4 2400 Vs 2666 Ram- What’s The Distance?

DDR4 2400 Ram

DDR4 2666 Ram

Ram Technology Type
DDR4 SO-DIMMDDR4 SD-Ram
Memory Speed
2400 MHz2666 MHz
Memory Storage Capability
4GB, 8GB, 16GB & 32GB4GB, 8GB, 16GB, 32GB & 64GB
Work Voltage
1.20V1.20V
Bandwidth Transfer Rate
19200 MB Per Second21300 MB Per Second
CAS Latency
CL17CL19
Number of Pins
260 Pins288 Pins
Motherboard Compatibility
Intel 100 and 200 Series motherboards (3600 MHz)Intel X99 and 100 Series motherboards (3600 MHz)
Top Picks To Consider






Ram Technology Type


Starting from the Ram type of DDR4 2400 vs 2666 laptop, you would probably find the visible difference as they both have separate technology types. Both have good Ram technology that makes them decent in different ways.

The DDR4 2400 Ram actually has a SO-DIMM technology that ensures you are getting good power to play most games in a better flow. Other than that, it does assure you to access faster by supporting your hard disk drive to sync better.

On the other hand, the DDR4 2666 Ram comes with an SD-Ram technology that supports your laptop to work better by distributing the files equally. With the SD-Ram technology, you would feel your laptop is becoming faster when operating and responding better than ever.

Even though they don’t have the same Ram technology, both DDR4 2400 and 2666 are good for a good reason. The DDR4 2400 Ram is excellent for notebook laptop use. If you want a faster and reliable version of SD-Ram, then the DDR4 2666 is your best bet.

Among all DDR4 2400 Ram models, we find the HyperX Kingston Technology Impact SODIMM Memory good for its brilliant lag reducing system. For DDR4 2666 Ram models, the Teamgroup Elite DDR4 Desktop Memory is the finest pick that has SD-Ram memory tech.

Best for Ram Type-OWC 2666 MHz SO-DIMM: 260 Pin Memory for iMac

This is an ideal memory with the high-frequency rate for iMac. It has 21300 data transfer bandwidth, and it is certified by the ROHS. So, you can safely upgrade the iMac memory with this higher frequency speed RAM.

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Memory Speed


When comparing their memory speed by DDR4 2400 vs 2666 benchmark, we have seen some huge gaps between them. There is a clear winner where one has better memory speed than the other.

The DDR4 2400 Ram has 2400 MHz memory speed that makes sure a quicker clock cycle to make your laptop work faster. This memory speed on top indicates 2.4 billion clock cycle speeds per second.

Conversely, the DDR4 2666 Ram appears with 2666 MHz memory speed for smoother flame rates speed under heavy loads. It also indicates 2.666 clock cycle speeds per second.

If comparing them side by side, it is fairly clear that the winner would be DDR4 2666 Ram for its brilliant memory speed to match with high-end games. The DDR4 2666 Ram also goes well with any system builds.

We are in love with the Crucial Ballistix 2666MHz Desktop Gaming Memory for its excellent performance at the die level.

Best Pick for Memory Speed- HyperX Impact 2666 MHz: SO-DIMM Laptop Memory

This RAM is just a plug and play type of memory. It automatically overclocks itself. You just need to be sure if it fits your system. with its huge p[erformance boost, it uses less power- around 1.2V.

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Memory Capability


Can I use 2666MHz Ram in 2400MHz laptop? If you are one of those who want a clear answer, you can if the speed is higher. Yet, they have a variation on memory capacity which makes it risky.

The DDR4 2666 Ram comes with 4GB, 8GB, 16GB, 32GB & 64GB memory capacity that allow your laptop CPU to read out the data faster no matter which software you are running.

Alternatively, the DDR4 2400 Ram comes with 4GB, 8GB, 16GB & 32GB memory capacity for you to run big apps easily with no lag. Yet, it has a lower memory capacity compared to the DDR4 2666 Ram.

On the whole, we find the DDR4 2666 Ram is the one to beat for its optimal memory storage support when running big sized apps. This Ram support also allows you to run 3D like pictures when playing games or videos through your laptop.

Compared with all DDR4 2666 Ram models, we find the OWC 64GB 2666MHz Memory best in both worlds for its great storage capacity to run big files with no snag.

Best Pick for Laptop- Crucial DDR4 2400 MHz: Non-ECC Type Laptop Memory

With this memory, your system gets a boost with a fast response. And so, your multitasking becomes easier than ever. If you use Photoshop, Lightroom then this RAM can giveits best performance output.

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Work Voltage


The working voltage of both DDR4 2400 and 2666 Ram comes with a similar feature. Even though they have similar voltage still they are meant for different reasons.

The DDR4 2400 Ram actually runs via 1.2 voltage powers that help your laptop to access well while saving the power for another use.

In the same way, the DDR4 2666 Ram runs by 1.2 voltage of power that assures your laptop to work on low voltage still doesn’t ruin the graphics or smooth react.

After comparing them fairly, we find both Rams good for trying out. The DDR4 2400 Ram has good voltage power that actually runs well by saving up to 20% power. In the same way, the DDR4 2666 Ram is good for running apps smoothly at a low voltage without heat or loud noise snags.

From the DDR4 2400 Ram models, the TEAMGROUP Elite Plus DDR4 Desktop Memory caught our interest for its good power support under minor operating heat. And, from the DDR4 2666 Ram models, we like the V-Color 8GB DDR4 Desktop Memory good for the fast response.

Best Pick for Low Voltage- HyperX Fury 2400 MHz: Low Power with RGB Lightning

It uses very low Voltage 1,2 V or 1.35 V a but gives the highest performance. The RGB lighting style brings an enthusiastic look. However, it is easy to install and activate the XMP profiles.

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Bandwidth Transfer Rate


The bandwidth transfer rate is another aspect that makes the DDr4 2400 and 2666 Ram poles apart. When comparing them rightly, there is a clear winner.

Starting from the DDR4 2400 Ram, it comes with 19200 MB per second of bandwidth transfer rate that allows your laptop to reduce the slowdown snag.

Alternately, the DDR4 2666 Ram comes with 21300 MB per second bandwidth rate for making your laptop higher in speed and transferring data in the speed of a bullet.

If weighted against each other, the DDR4 2666 Ram has a good bandwidth transfer rate for operating any files at a decent speed. This DDR4 2666 Ram also gives faster data rates to transfer signals to the processor in thunder speed.

Overall, we find the Crucial 32GB DDR4 2666 Memory best for its exceptional setups with Increase bandwidth by up to 32% power. This Ram kit is also good for better sequential data throughout.

Best Pick for Compatibility- Timetec Hynix 2666 MHz: UDIMM Desktop Memory

It comes with 288-pin and non-buffered technology. It is finely compatible with Intel and AMD processors. With lower power consumption and lifetime technical support make this memory top-notch.

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CAS Latency


Who wins in CAS latency when it comes to 2400MHz vs 2666MHz DDR4 Ram? Both have different CAS latency in CL ratings.

The 2400 Ram comes with 0.83 clock cycle time with CL17 CAS latency to makes sure good performance with less decelerate. On the other side, the 2666 Ram has 0.75 clock cycle time with CL19 CAS latency to run apps with no low-speed snag.

To be honest, we find both Rams good. If you like non-ECC buffer-free Ram that has low latency speed, it’s better to pick the DDR4 2400 Ram. For higher latency speed, the DDR4 2666 Ram is a good choice.

Out of all 2400 Ram models, we find the Timetec Hynix IC 16GB Computer Memory possibly the best option for its fast acceleration speed. Among 2666 Ram models, the Timetec Hynix IC 16GB 2666MHz Desktop Memory is good for running apps or other files faster with no bumper.

Best Pick for CAS Latency- HypereX Fury 2666 MHz: Lower CL Higher Power

It comes as a single stick chip with a head-spreaddesign. With only 16 CL, it can speed up to 3466 MHz.It is an Intel XMP ready memory and also compatible with other latest model ofIntal.

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Number of Pins


If talking about numbers of pins in DDR4 2400 and 2666 Ram, you will notice a good difference. The 2400 Ram appears with 260 pins while the 2666 Ram comes with 288 pins for stronger data transferring ability.

When comparing the DDR4 2400 vs 2666 compatibility of the pins, it is clear that the DDR4 2600 Ram is good for sharing data faster through the pins. The DDR4 2600 Ram also makes sure a stylish performance boost when running software.

Among the DDR4 2666 models, we love the HyperX Fury 16GB 2666MHz XMP Desktop Memory finest for good speed and worry-free cost-effective upgrade. This set is also good for better overclock speed though the pins support.

Best Pick for Bandwidth- Corsair Vengeance RGB 2666: Custom PCB with High Data Transfer

This RAM gives your system a fast data processing ability with customizing LED features. Here, IC is perfectly compatible with extreme level overclocking. Performance Customized data transfer bandwidth gives it a superior working area.

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Motherboard Compatibility


The motherboard compatibility is another big fact that makes the DDR4 2400 and 2666 Ram special that each other.

If talking about the DDR4 2400 Ram, it is suitable for Intel 100 and 200 Series motherboard that can run up to 3600 MHz. In contrast, the DDR4 2666 Ram is good for Intel X99 and 100 Series motherboards with similar speed performance.

For the higher frequency and good feature to match with suitable motherboards, the DDR4 2400 Ram is likely the victor. The DDR4 2400 Ram also gives potential performance to suits the motherboards.

From DDR4 2400 models, the Corsair Vengeance LPX 4GB 2400MHz Desktop Memory is our favorite for tested compatibility and lower power consumption on the suitable motherboard.

Best Pick for Pins- TeamGroup Elite Plus 2400 MHz: 288-Pin UDIMMDektop memory

It is a 2400 MHz frequency of Ram but has 288 pins that robustly transfer data. Lower voltage consumption and lower CL of only 16 make it the best choice ever. Moreover, the multi-channel colorcombination gives it an attractive look.

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Price Range


When comparing the price range of both 2400 and 2666 Ram, we see a clear likely victor who comes at a sensible rate.

The DDR4 2400 Ram comes at a good price point with awesome quality and features for laptops and PCs use. Then again, the DDR4 2666 Ram appears with better features and useful for high-end builds at a costly price. Yet, it does have exceptional aspects which makes it superior in value.

After reading both sides, we would definitely say the frontrunner is the DDR4 2400 Ram for its good features at a logical price point. Compare to its opponent, most DDR4 2400 Ram models have a good price range for both beginners and experts.

We find the HyperX Fury 16GB 2400MHz DDR4 XMP Desktop Memory set decent for you to try out at a reasonable price range. Depending on its features, quality, and other aspects, this set has good value.

Best for Money- V-Color 2666 MHz: Upgraded Module Desktop Memory

This is a budget pack from V-Color Ram. It comes with an upgraded module of 10 layers of PCB. However, it gives the highest data processing performance with lower power consumption. And it is super easy to install.

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Our Recommended Top 5 Products

DDR4 2400 Ram

DDR4 2666 Ram

#1. HyperX Fury 8GB DDR4 Ram– Best Ram for Gaming Lifestyle***#1. Corsair Vengeance LPX DDR4 DRAM-Best Ram for High-End System Build***
#2. Corsair Vengeance LPX DRAM– Best Ram for Overclocking Performance***#2. Crucial 64GB Kit DDR4 Memory– Best Ram for Smooth Multitasking***
#3. Crucial DDR4 2400 Memory– Best Ram for Video Editing#3. Corsair Vengeance Performance Memory Kit– Best Ram for Streaming
#4. HyperX Fury DDR4 XMP Desktop Memory– Best Ram for 3D Rendering#4. Corsair VENGEANCE LED Desktop Memory– Best Ram for Everyday Use
#5. Corsair CMSX32GX4M2A2400C16 Vengeance Memory– Best Ram for Graphic Design#5. Kingston Technology HyperX Impact Laptop Memory– Best Ram for Office Use

The Better Choice?

Clearly both have their strong and weak points to show when we break down them into a battle comparison of DDR4 2400 vs 2666. However, it’s also pretty obvious that higher MHz definitely will make more sense to have a powerful component supporting you with faster speed. And for that reason alone, it’s surely a smart idea to go for the 2666MHz with that extra cost to pay.

If you are looking forward to something capable enough on handling challenging applications, then DDR4 2400 will still be able to serve you right. It’s a nice RAM that can give you satisfying results even when you use several programs at the same time. For gaming, it has received lots of praise, and also it fits into the programmer’s needs. You can enjoy universal support with any type of motherboard.

However, for the extreme fast gaming performance and a superior multi-tasking feel, the RAM 2666 will still be some steps ahead. It’s the upgraded version that will not need any XMP for you to operate. It’s also known for extending the battery life of PC.

To be honest, the winning spot goes to RAM 2666 but there’s still no dramatically added benefit that you are getting with it. The price that you pay extra for the 2666MHz is basically why you are having some upgraded features not present with the less MHz versions. So, you must be measuring things according to your needs. If decent gaming and programming focused RAM will be just enough in a budget-friendly price, then you don’t need to pay extra for the . However, if you don’t mind that slightly more price paying, then go for the higher feature offering version.

SA Sahri

Have been working with trendy and essential tech gadgets for years. Being analytical with the computer hardware, I love to assist people with the right info and useful tips for a relaxed and leisurely lifestyle with technological advances. However, years of writing experience help present the output in the right way through these researched articles.

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