DDR4-2666 MHz RAM | Newegg.com (2024)

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CORSAIR Vengeance RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6000 (PC5 48000) Desktop Memory Model CMH32GX5M2B6000C40L

$109.99
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CORSAIR Vengeance RGB 64GB (2 x 32GB) 288-Pin PC RAM DDR5 6000 (PC5 48000) Desktop Memory Model CMH64GX5M2B6000C40L

$189.99
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CORSAIR Vengeance RGB 32GB (2 x 16GB) 288-Pin PC RAM DDR5 6400 (PC5 51200) Desktop Memory Model CMH32GX5M2N6400C36

$124.99
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Crucial 16GB 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CT16G4DFRA266

CAS Latency: 19
Voltage: 1.20V
Timing: 19-19-19
Buffered/Registered: Unbuffered
Model #: CT16G4DFRA266

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AGI UD138 8GB DDR4 UDIMM 2666MHz CL19, 1.2V, 288-pin for Computer Memory RAM Module Upgrade

CAS Latency: 19
Voltage: 1.20V
Part Number: AGI266608UD138
Model #: AGI266608UD138

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Crucial 32GB (2 x 16GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CT2K16G4DFRA266

CAS Latency: 19
Voltage: 1.20V
Timing: 19-19-19
Buffered/Registered: Unbuffered
Model #: CT2K16G4DFRA266

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AGI UD138 16GB DDR4 UDIMM 2666MHz CL19, 1.2V, 288-pin for Computer Memory RAM Module Upgrade

CAS Latency: 19
Voltage: 1.20V
Part Number: AGI266616UD138
Model #: AGI266616UD138

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CORSAIR Vengeance LPX 16GB (2 x 8GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMK16GX4M2A2666C16

CAS Latency: 16
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 16-18-18-35
Model #: CMK16GX4M2A2666C16

$41.99
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(124)

Crucial 8GB 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CT8G4DFRA266

CAS Latency: 19
Voltage: 1.20V
Timing: 19-19-19
Buffered/Registered: Unbuffered
Model #: CT8G4DFRA266

$31.99
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G.SKILL Ripjaws V Series 64GB (2 x 32GB) DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C18D-64GVK

CAS Latency: 18
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 18-18-18-43
Model #: F4-2666C18D-64GVK

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Supermicro Certified MEM-DR432L-CL05-ER26 | Micron 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM

Chipset: Micron Chipset
CAS Latency: 19
Voltage: 1.20V
Rank: 2Rx4
Model #: MEM-DR432L-CL05-ER26

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Supermicro Certified MEM-DR432L-SL04-ER26 | Samsung 32GB PC4-21300 DDR4 2666MHz 2Rx4 Dual Rank ECC RDIMM Registered 288-Pin Server Memory RAM

Chipset: Samsung Chipset
CAS Latency: 19
Voltage: 1.20V
Rank: 2Rx4
Model #: MEM-DR432L-SL04-ER26

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Supermicro Certified MEM-DR416L-SL07-ER26 | Samsung 16GB PC4-21300 DDR4 2666MHz 1Rx4 Single Rank ECC RDIMM Registered 288-Pin Server Memory RAM

Chipset: Samsung Chipset
CAS Latency: 19
Voltage: 1.20V
Rank: 1Rx4
Model #: MEM-DR416L-SL07-ER26

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Supermicro Certified MEM-DR464L-HL02-LR26 | Hynix 64GB PC4-21300 DDR4 2666MHz 4Rx4 Quad Rank ECC LRDIMM Load Reduced 288-Pin Server Memory RAM

Chipset: Major Brand Chipset
CAS Latency: 19
Voltage: 1.20V
Rank: 4Rx4
Model #: MEM-DR464L-HL02-LR26

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(59)

Crucial 4GB Single DDR4 2666 MT/s (PC4-21300) CL19 x8 UDIMM 288-Pin Memory - CT4G4DFS8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology maturesIncrease bandwidth by up to 32%Reduce power consumption by up to 40%Faster bursts access speeds for improved sequential data throughoutOptimized for next generation processors and platforms
Model #: CT4G4DFS8266

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A-Tech 32GB DDR4 2666MHz DIMM PC4-21300 UDIMM Non-ECC Unbuffered CL19 2Rx8 1.2V 288-Pin Dual Rank Desktop Computer PC RAM Memory Upgrade Module

$74^.99–
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G.SKILL Ripjaws V Series 32GB DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C18S-32GVK

CAS Latency: 18
Voltage: 1.20V
Timing: 18-18-18-43
Recommend Use: AMD X570 / B550Intel X299 / Z690 DDR4 / Z590 / Z490 / Z390
Model #: F4-2666C18S-32GVK

$62^.99(2 Offers)–
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Crucial 32GB Single DDR4 2666 MT/s CL19 DIMM 288-Pin Memory - CT32G4DFD8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology maturesIncrease bandwidth by up to 32%Reduce power consumption by up to 40%Faster bursts access speeds for improved sequential data throughoutOptimized for next generation processors and platforms
Model #: CT32G4DFD8266

$73^.95–
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CORSAIR Vengeance LPX 32GB (2 x 16GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Memory Kit Model CMK32GX4M2A2666C16

CAS Latency: 16
Voltage: 1.20V
Timing: 16-18-18-35
Recommend Use: AMD 300 Series / AMD 400 Series / AMD X570 / High Performance or Gaming Memory / Intel 100 Series / Intel 200 Series / Intel 300 Series / Intel 400 Series / Intel X299
Model #: CMK32GX4M2A2666C16

$73.99
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(124)

Crucial 16GB (2 x 8GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CT2K8G4DFRA266

CAS Latency: 19
Voltage: 1.2V
Buffered/Registered: Unbuffered
Features: Speeds up to 2666 MT/s and faster data rates are expected to be available as DDR4 technology maturesIncrease bandwidth by up to 32%Reduce power consumption by up to 40%Faster burst access speeds for improved sequential data throughoutOptimized for next generation processors and platforms
Model #: CT2K8G4DFRA266

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Crucial 8GB Single DDR4 2666 MT/s (PC4-21300) SR x8 DIMM 288-Pin Memory - CT8G4DFS8266

CAS Latency: 19
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 19-19-19
Model #: CT8G4DFS8266-CRUCIAL

$17^.93(2 Offers)–
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(59)

Crucial 8GB Kit (4GBx2) DDR4 2666 MT/s (PC4-21300) CL19 x8 UDIMM 288-Pin Memory - CT2K4G4DFS8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology maturesIncrease bandwidth by up to 32%Reduce power consumption by up to 40%Faster bursts access speeds for improved sequential data throughoutOptimized for next generation processors and platforms
Model #: CT2K4G4DFS8266

$42.99
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G.SKILL TridentZ RGB Series 64GB (2 x 32GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C18D-64GTZR

CAS Latency: 18
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 18-18-18-43
Model #: F4-2666C18D-64GTZR

$129^.99(2 Offers)–
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(59)

Crucial 16GB 2666 MT/S 288-Pin DDR4 SDRAM UDIMM (PC4-21300) Memory Module, CL19, Unbuffered, Dual Ranked x8, Non-ECC, 1.2V

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Model #: CT16G4DFD8266

$39^.89–
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G.SKILL Aegis 32GB (2 x 16GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C19D-32GIS

CAS Latency: 19
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 19-19-19-43
Model #: F4-2666C19D-32GIS

$62.99
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Micron 16GB DDR4 SDRAM Memory Module - 16 GB - DDR4-2666/PC4-21300 DDR4 SDRAM - CL19 - 1.20 V - ECC - Registered - 288-pin - DIMM

ECC: ECC
Model #: MTA36ASF2G72PZ-2G6F1

$37.00
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(18)

Patriot 16GB DDR4 2666 (PC4 21300) Desktop Memory Model PSP416G26662H1

CAS Latency: 19
Voltage: 1.20V
Timing: 19-19-19-43
Buffered/Registered: Unbuffered
Model #: PSP416G26662H1

$39.99
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Crucial 64GB Kit (32GBx2) DDR4 2666 MT/s CL19 DIMM 288-Pin Memory - CT2K32G4DFD8266

CAS Latency: 19
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Buffered/Registered: Unbuffered
Model #: CT2K32G4DFD8266

$162.99
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(19)

G.SKILL TridentZ RGB Series 16GB (2 x 8GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C18D-16GTZR

CAS Latency: 18
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 18-18-18-43
Model #: F4-2666C18D-16GTZR

$54^.99(2 Offers)–
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(701)

Crucial Ballistix 2666 MHz DDR4 DRAM Desktop Gaming Memory Kit 16GB (8GBx2) CL16 BL2K8G26C16U4W (WHITE)

CAS Latency: 16
Voltage: 1.35 V
Recommend Use: High Performance or Gaming Memory
Buffered/Registered: Unbuffered
Model #: BL2K8G26C16U4W

$131^.69–
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Crucial RAM 4GB DDR4 2666 MHz CL19 Desktop Memory CT4G4DFS6266

CAS Latency: 19
Voltage: 1.2 V
Buffered/Registered: Unbuffered
Features: Speeds up to 3200 MT/s and faster data rates are expected to be available as DDR4 technology maturesIncrease bandwidth by up to 32%Reduce power consumption by up to 40%Faster bursts access speeds for improved sequential data throughoutOptimized for next generation processors and platforms
Model #: CT4G4DFS6266

$22^.61–
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(59)

Crucial 32GB (4 x 8GB) DDR4 2666MHz DRAM (Desktop Memory) CL19 1.2V SR DIMM (288-pin) CT4K8G4DFS8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: CT4K8G4DFS8266 is a 32GB Kit consisting of (4) 8GB Single Ranked DDR4 desktop modules that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Unbuffered DIMM. It conforms to the industry standard DDR4 ECC UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666 MT/s UDIMM memory.
Model #: CT4K8G4DFS8266

$79^.99–
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Crucial 8GB Kit (4GBx2) DDR4 2666 MT/s (PC4-21300) CL19 x16 UDIMM 288-Pin Memory - CT2K4G4DFS6266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Color: Green
Model #: CT2K4G4DFS6266

$32^.88–
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CORSAIR Vengeance LPX 32GB 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMK32GX4M1A2666C16

CAS Latency: 16
Voltage: 1.20V
Timing: 16-18-18-35
Heat Spreader: Anodized Aluminum
Model #: CMK32GX4M1A2666C16

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CORSAIR Vengeance LPX 64GB (2 x 32GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMK64GX4M2A2666C16

CAS Latency: 16
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 16-18-18-35
Model #: CMK64GX4M2A2666C16

$129.99
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Crucial 64GB (4 x 16GB) DDR4 2666MHz DRAM (Desktop Memory) CL19 1.2V DR DIMM (288-pin) CT4K16G4DFD8266

CAS Latency: 19
Voltage: 1.20V
Multi-channel Kit: Quad Channel Kit
Chipset: Major Brand Chipset
Model #: CT4K16G4DFD8266

$206^.00–
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(17)

CORSAIR Vengeance LPX 16GB 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMK16GX4M1A2666C16

CAS Latency: 16
Voltage: 1.20V
Timing: 16-18-18-35
Recommend Use: High Performance or Gaming Memory
Model #: CMK16GX4M1A2666C16

$37^.99–
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Crucial 16GB DDR4 2666MHz 288-pin DIMM Memory Module MTA18ASF2G72AZ2G6E2

CAS Latency: 1.5
ECC: ECC
Color: Black
LED Color: None
Model #: MTA18ASF2G72AZ2G6E2

$79.96
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(357)

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2666 (PC4 21300) Desktop Memory Model F4-2666C15D-16GVR

CAS Latency: 15
Voltage: 1.20V
Multi-channel Kit: Dual Channel Kit
Timing: 15-15-15-35
Model #: F4-2666C15D-16GVR

$45^.99(3 Offers)–
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(59)

Crucial 32GB Kit (2 x 16GB) DDR4-2666 DIMM 288-Pin Memory Kit CT2K16G4DFD8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: CT2K16G4DFD8266 is a 32GB Kit consisting of (2) 16GB DDR4 desktop modules that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Unbuffered DIMM. It conforms to the industry standard DDR4 ECC UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666 MT/s UDIMM memory.
Model #: CT2K16G4DFD8266

$79^.98–
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CORSAIR Vengeance RGB Pro 32GB (2 x 16GB) 288-Pin PC RAM DDR4 2666 (PC4 21300) Desktop Memory Model CMW32GX4M2A2666C16W

CAS Latency: 16
Voltage: 1.20V
Timing: 16-18-18-35
Recommend Use: AMD & Intel Compatible / AMD 300 Series / AMD 400 Series / AMD 500 Series / AMD TRX40 / Intel 300 Series / Intel 400 Series
Model #: CMW32GX4M2A2666C16W

$89^.99–
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(59)

Crucial 16GB (2 x 8GB) DDR4 2666MHz DRAM (Desktop Memory) CL19 1.2V SR DIMM (288-pin) CT2K8G4DFS8266

CAS Latency: 19
Voltage: 1.20V
Buffered/Registered: Unbuffered
Features: CT2K8G4DFS8266 is a 16GB Kit consisting of (2) 8GB Single Ranked DDR4 desktop modules that operates at speeds up to 2666 MT/s and has a CL19 latency. It is an Unbuffered DIMM. It conforms to the industry standard DDR4 ECC UDIMM layout of 288 pins and is compatible with systems that take DDR4 2666 MT/s UDIMM memory.
Model #: CT2K8G4DFS8266

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FAQs

Is 2666MHz RAM still good? ›

In conclusion, 2666 MHz can be considered a decent speed for DDR4 memory, offering good performance for most applications. However, it's important to consider your system's compatibility, specific use case, and other factors like latency and timings to make an informed decision.

Keep Reading ›

Which is better DDR4 2666 or DDR4 3200? ›

Dual channel > single channel, any time. 2x8GB ram at 2666MHz, will always outperform a 1x8GB ram at 3200MHz. 16gb ram at 3200MHz vs 2666MHz, you're looking at 0.1 to 0.5% performance increase. If you normally get 100fps in a video game with 2666MHz, then you'll get like 101 or 102 FPS with 3200MHz.

Discover More ›

Is 2666 RAM too slow? ›

A 2666MHz RAM speed is considered decent and suitable for most computer systems.

Find Out More ›

Is 32GB 2666MHz better than 16GB DDR4 3200MHz? ›

Depends on the use case scenario. Speed is just a measurement how fast RAM can access its memory. If you have 16GB RAM, it can be just enough for your needs but if you are overloading those 16GB of RAM then 32GB of RAM, even at 2666Mhz, is better to use than faster 16GB RAM. Of course, 32GB at 3200Mhz is better.

Read The Full Story ›

Is 16GB 2666MHz DDR4 memory enough? ›

2666 WILL work. You will get small levels of improvement with each speed increase; 3000, e200, 3600 Mhz.

Read On ›

What happens if you put 3200MHz RAM in 2666MHz processor? ›

The mismatched RAM speeds can cause instability, compatibility issues, and potential system crashes. Moreover, using different RAM speeds can also impact the system's ability to utilize dual-channel memory effectively, further reducing performance.

Get More Info Here ›

Is 8GB DDR4 2666mhz RAM good? ›

DDR4 2666 RAM is considered to be good for most general computing tasks and gaming purposes. It offers a decent balance between performance and affordability. In terms of compatibility, DDR4 2666 RAM is widely supported by modern motherboards and processors.

What is DDR4 2666 mean? ›

DDR data transfer speed is measured in MT/s (mega transfers per second). For instance, DDR4-2666 means that it operates at a base frequency of 1333 MT/s, but because it reads data twice, it operates as if its frequency is 2666 MT/s. The operating voltage remains that same at 1.2V, irrespective of frequency.

Discover More ›

Is there a big difference between 2400 and 2666 RAM? ›

The main difference between DDR4 2400T and DDR4 2666 lies in their maximum transfer rates. DDR4 2400T has a maximum transfer rate of 2 GB/s, while DDR4 2666 has a maximum transfer rate of 2.6 GB/s. This means that DDR4 2666 is capable of transferring data at a faster rate compared to DDR4 2400T.

Should I upgrade RAM from 2666 to 3200? ›

16gb ram at 3200MHz vs 2666MHz, you're looking at 0.1 to 0.5% performance increase. If you normally get 100fps in a video game with 2666MHz, then you'll get like 101 or 102 FPS with 3200MHz. Until you start using ram that is rated at 4000MHz or 5000MHz, 2666/3200 is nothing.

Find Out More ›

Is there a big difference between 2666MHz and 3200MHz RAM? ›

Not much of a difference. However if you want that slight/miniscule performance boost for competitive games and benchmarks or to help in video editing, then sure you can get 3000 MHz. Short answer, No difference.

Learn More ›

Is 32GB DDR4 overkill? ›

This isn't a straightforward question, as it depends on what you're using your PC for. If all you're doing is browsing the internet, then 16GB is fine, and any more is probably overkill. It's when you start doing more demanding tasks that extra memory makes a difference.

Read On ›

Is there a big difference between 2666MHz and 3600MHz? ›

The general performance gain in games between 2666 and 3600 will be 0-2%. In some specific titles it can be up to 5-7%, but usually when there is already 100+FPS. If it uses a lot of RAM then more RAM will be always better than a higher frequency.

View Details ›

How fast is 2666MHz RAM? ›

DDR4 speeds

Friendly name	Industry name	Peak Transfer Rate
DDR4-2666	PC4-21300	21300 MB/s
DDR4-2933	PC4-23400	23400 MB/s
DDR4-3000	PC4-24000	24000 MB/s
DDR4-3200	PC4-25600	25600 MB/s

4 more rows

Explore More ›

Why is my 3200MHz RAM showing as 2666? ›

Many people don't know this, but 3200MHz RAM by default will always be set to 2666 (technically 2667). This is because some older CPUs can't handle too high of speeds and they wouldn't want to cause an immediate crash when you're building your PC.

Get More Info ›