Select the item on the page that has the error
We use cookies to give you the best possible experience on our site. By continuing to use the site you agree to our use of cookies. Find out more

RAM Memory

0

The system memory (RAM) plays a crucial role in the performance of your computer. It holds all the instructions that the processor executes and also the data those instructions work with. Therefore, its capacity determines how many programs can run simultaneously on your system.

Continue

Use in:

  • PCs - standard memory modules for desktops
  • Servers - feature registers and error-correcting systems that usually work only on specialised motherboards
  • Laptops - smaller in size
  • Apple - memory modules that will work reliably with your Mac

How much memory (RAM) will I need?

  • 2 GB - minimum for the average office work.
  • 4 GB - for multimedia, web browsing, video playback and running multiple programs simultaneously.
  • 8 GB - for occasional gaming and demanding office applications. Sufficient for the vast majority of modern applications and technologies.
  • 16 GB - ideal for gamers and users who use computers very often.
  • 32 GB and more - if you use rendering software such as CAD programs, work with graphics software, or edit video.

What type (standard) of RAM to choose?

  • Type (standard) - The type of memory must always match the specifications of the motherboard or processor. The DDR/2/3/4 standards are not backwards nor forward compatible.
  • Memory Frequency - Higher memory frequency means higher data bandwidth. The maximum data transfer speeds are affected by the maximum frequency of the processor's memory controller and memory bus. These can be adjusted by overclocking or changing the multiplier.
  • Voltage - Must always be less than or equal to the maximum value that is listed on your motherboard. For use in laptops, special low-voltage modules (DDR3L/4L) are designed to reduce power consumption.
Type (standard) memory frequency Voltage (DDR / DDRL)
DDR 200 - 400 MHz 2.5 to 2.6 V
DDR2 400 - 1066.67 MHz 1.8 V
DDR3 800 - 2133.33 MHz 1.5 / 1.35 V
DDR4 2133.33 - 4266.67 MHz 1.2 / 1.05 V

How does the RAM's frequency affect your computer's performance?

  • With an integrated graphics card - the higher the RAM frequency, the better graphics performance you get. Especially in 3D games, a faster RAM can significantly boost the graphics card's performance - in some cases even up to 50%.
  • With a dedicated graphics card - the influence of the RAM frequency on your graphics card's performance is minimal (up to 5%). However, if you use multiple graphics cards, the influence is greater.

Closely related to memory frequency is memory timing - eg. CL9-9-9-24 (latency in ns), which refers to the time lag between the reception and execution of an instruction. With two memory modules running at the same frequency, the one with a lower CL is always better. The CL's influence on your computer's performance, however, depends mainly on the particular application the memory has to process.

Multi-channel connection Dual / Triple / Quad Channel

When it comes to multichannel processing (2/3/4), it pays off to adhere to the recommended number of memory modules for your system. This can give you a performance boost especially in:

Games

  • With an integrated graphics card, you can get even 100% more power.
  • The impact on the performance of a dedicated graphics card is, however, almost unnoticeable.

Rendering - a 3-10% boost in performance can still be significant for difficult calculations.

3D simulation and compilation (CAD / CFD calculations) - a 20% increase in performance over single-channel processing.

 

For proper function, it is usually necessary to use the exact same memory modules in all memory slots.
For setting the correct slots in the multi-channel mode, check their colour marks.

 

Important terms

  • Passive heatsink - usually an aluminium heatsink which is mounted on the memory chip for better heat dissipation and more efficient cooling.
  • XMP (Extreme Memory Profile) - Intel technology that allows the BIOS to automatically set even non-standard parameters such as the frequency, timing, and voltage.
  • Unbuffered - A standard type of memory used in home PCs and laptops.
  • Registered - A type of RAM designed for use in servers. It uses a special register which decreases the memory controller load and thus enables the server to use a large number of RAM modules. Moreover, this type of memory often features ECC.
  • ECC - A function which detects and corrects errors.
Was this information useful?
This form is for collecting Feedback Only. If you have any other inquiries, please our Customer Care team here.
Is something missing or displayed incorrectly? Let us know your suggestions so we can improve the website and customer experience.
1234 ...
709 Results
Crucial SO-DIMM 16GB KIT DDR3 1600MHz CL11 Dual Voltage
System Memory - 2x 8GB, PC3-12800, 1.35V/1.50V

Faster Computer? No problem with Crucial Memory! Your laptop can easily stop maintaining the pace with latest applications due to lack of RAM. Set...

£121.90 excl.VAT £101.58
Buy
In stock > 5 pcs
Order Code: CR107j
Crucial SO-DIMM DDR3 1600MHz 8GB KIT CL11 Dual Voltage
System Memory - 2x4GB, PC3-12800, voltage 1.35V/1.50V

Faster Computer? No problem with Crucial memories! Your laptop can easily stop managing current applications due to lack of RAM. A set...

£67.90 excl.VAT £56.58
Buy
In stock > 5 pcs
Order Code: CR107g4
Crucial SO-DIMM 8GB DDR3L 1600MHz CL11 Dual Voltage
System Memory - PC3-12800, voltage 1.35 V/1.50 V

Faster computer? Crucial memory modules make it possible!Insufficient RAM can prevent your notebook from keeping up with modern apps. This 8GB...

Crucial SO-DIMM 8GB DDR3L 1600MHz CL11 Dual Voltage - System Memory
-6%
-6% £62.92
£58.90 excl.VAT £49.08
Buy
Special Offer
In stock > 5 pcs
Order Code: CR107g
Crucial SO-DIMM 4GB DDR3 1600MHz CL11
System Memory - PC3-12800, 1.35V

Faster Computer? No problem with the Crucial Memory! Your laptop can easily stop managing current applications due to lack of RAM. The...

£31.90 excl.VAT £26.58
Buy
In stock > 5 pcs
Order Code: CR107d
Crucial SO-DIMM 8GB DDR3L 1866MHz CL13 for Apple/Mac
System Memory - PC3-14900, 1.35V

The well known Crucial brand focuses fully on the production of high quality storage media....

£70.90 excl.VAT £59.08
Buy
In stock > 5 pcs
Order Code: CR109r
Crucial SO-DIMM 8GB DDR3 1600MHz CL11 Dual Voltage for Apple/Mac
System Memory - PC3-12800, 1.35 V/1.50 V

Faster computer? Crucial memory modules make it possible!Insufficient RAM can prevent your Apple Mac from keeping up with modern apps. This 8GB...

£60.90 excl.VAT £50.75
Buy
In stock 4 pcs
Order Code: CR109f3
Crucial SO-DIMM 4GB DDR3 1600MHz CL11 Dual Voltage for Apple/Mac
System Memory - PC3-12800, voltage 1.35V/1.50V
Faster computer? Crucial memory modules make it possible!Insufficient RAM can prevent your Apple Mac from keeping up with modern apps. This 4GB...

£37.90 excl.VAT £31.58
Buy
In stock > 5 pcs
Order Code: CR109c3
Crucial SO-DIMM 8GB DDR4 2666MHz CL16 Ballistix Sport LT
System Memory - PC4-21300, Voltage 1.2V, Dual Ranked x8, XMP 2.0

The Crucial SO-DIMM 8GB DDR4 to...

£82.90 excl.VAT £69.08
Buy
In stock 5 pcs
Order Code: CR110f4c
Crucial SO-DIMM 4GB DDR4 2400MHz CL16 Ballistix Sport LT
System Memory PC4-19200, Voltage 1.2V, Single Ranked x8, XMP 2.0

Crucial Ballistix Sport LT will reliably increase your notebook's performance. 

£43.90 excl.VAT £36.58
Buy
In stock > 5 pcs
Order Code: CR110c5a
Crucial Ballistix Sport LT 16GB Kit DDR4 2666MHz CL16 SODIMM
System Memory - 2x8GB, PC4-21300, 1.2V, Dual Ranked x8, XMP 2.0

The Crucial Ballistix Sport 16GB kit is perfect for gamers and anyone who needs truly uncompromising performance from their computer....

£148.90 excl.VAT £124.08
Buy
In stock > 5 pcs
Order Code: CR111h5c
Crucial SO-DIMM 16GB DDR4 2666MHz CL16 Ballistix Sport LT
System Memory - PC4-21300, Voltage 1.2V, Dual Ranked x8, XMP

Crucial Ballistix Sport 16GB system memory is perfect...

£153.90 excl.VAT £128.25
Buy
In stock > 5 pcs
Order Code: CR111h4d
Crucial SO-DIMM 8GB DDR4 2133MHz CL15 Single Ranked
System Memory - PC4-17000, 1.2V, Single Ranked x8

You can reliably increase the performance of your notebook with the Crucial SO-DIMM system memory. This type...

£70.90 excl.VAT £59.08
Buy
In stock > 5 pcs
Order Code: CR111e1
Crucial SO-DIMM 16GB KIT DDR4 2400MHz CL16 Ballistix Sport LT
System Memory - 2x 8GB, PC4-19200, 1.2V, Dual Ranked x8, XMP 2.0

Crucial Ballistix Sport LT is a great memory module series if you need to boost your notebook performance. Featuring the new DDR4 memory type, it’s the best choice for a RAM upgrade you can get...

£151.90 excl.VAT £126.58
Buy
In stock > 5 pcs
Order Code: CR111h2
Crucial SO-DIMM 16GB DDR4 2400MHz CL16 Ballistix Sport LT
System Memory - PC4-19200, 1.2V, Dual Ranked 8 Times, XMP 2.0

Crucial Ballistix Sport LT will increase the performance of your notebook reliably. You can not find anything better to...

£161.90 excl.VAT £134.92
Buy
In stock 1 pcs
Order Code: CR111h1
Crucial SO-DIMM 16GB KIT DDR4 2133MHz CL15 Dual Ranked
System Memory - 2x8GB, PC4-17000, 1.2V

Get out of your laptop to maximum power, using cutting-edge SO-DIMM memory from a reputable manufacturer Crucial. This kind of falls into the...

£146.90 excl.VAT £122.42
Buy
In stock > 5 pcs
Order Code: CR111h
Crucial SO-DIMM 16 GB DDR4 2133MHz CL15 Dual Ranked
System Memory - PC4-17000, voltage 1.2V

Get maximum power from your laptop, using the top-class SO-DIMM memory from the reputable Crucial company...

£137.90 excl.VAT £114.92
Buy
Special Offer
In stock > 5 pcs
Order Code: CR111f
Crucial SO-DIMM 8GB KIT DDR4 2133MHz CL15 Single Ranked
System Memory - 2x4GB, PC4-17000, 1.2V

Get the most out of your notebook with top SO-DIMM memories from the renowned manufacturer Crucial. The latest DDR4...

£78.90 excl.VAT £65.75
Buy
In stock > 5 pcs
Order Code: CR111e
Crucial SO-DIMM 8GB DDR4 2133MHz CL15 Dual Ranked
System Memory - PC4-17000, voltage 1.2V

Get the most out of your notebook with top quality SO-DIMM memories from the renowned manufacturer Crucial. This latest DDR4 category, is up to 40% ...

£68.90 excl.VAT £57.42
Buy
In stock > 5 pcs
Order Code: CR111d
Crucial SO-DIMM 4GB DDR4 2133MHz CL15 Single Ranked
System Memory - PC4-17000, Voltage 1.2V

Get the most out of your notebook with top SO-DIMM memories from the renowned Crucial manufacturer....

£36.90 excl.VAT £30.75
Buy
In stock > 5 pcs
Order Code: CR111b
Crucial SO-DIMM 16GB KIT DDR4 2400MHz CL17 Single Ranked x8
System Memory - 2x8GB, PC4-19200, 1.2V

Are you looking for modern components for your notebook? We have ready for you an offer in the form of operating memory from...

£153.90 excl.VAT £128.25
Buy
In stock 2 pcs
Order Code: CR112d2
Crucial SO-DIMM 16GB DDR4 2400MHz CL17 Dual Ranked
System Memory - PC4-19200, 1.2V

 Expanding the system memory capacity of your laptop is a widely welcomed upgrade that will ensure an interesting performance boost. Your...

£155.90 excl.VAT £129.92
Buy
In stock 1 pcs
Order Code: CR112d

RAM Memory

RAM Memory

RAM system memory
The RAM memory is an essential part of every computer. The exact term is RWM - RAM (RWM - Read Write Memory, RAM - Random Access Memory). It refers to the fact that this type of memory can be repeatedly written to and read from and can also be accessed randomly. The capacity and speed of the installed memory greatly affects the performance of your computer. A computer can use several memory modules at once. These hold all the instructions that the computer's processor executes, i.e. the data of all programs you use. The data is not stored permanently in the RAM memory. Each time the computer shuts down, the whole memory is completely erased. The system memory is used for this purpose because it is much faster than a standard hard drive and it provides significantly shorter access time. This ensures lightning-fast data transfers between the memory and the processor. Generally speaking, the more RAM you have, the better performance you get.

The history of operating memory is quite rich. During a relatively short period of time, a large number of technologies were tried and used. For example, in the beginning of its evolution, system memory was made of ferrite. In the 1950s, magnetic drum-shaped memory modules were made. Nowadays, DIMM memory (Dual Inline Memory Module) uses modern semiconductors.

Types of operating memory
System memory can be divided into many different types. Desktop computers and laptops use essentially the same type of memory, but it still differs in dimensions. Most computers and laptops use the DDR (Double Data Rate), DDR2 (currently the most common) or the newest DDR3 memory. These share the basic architecture, but later generations offer better performance. The DDR, DDR2 and DDR3 are not mutually compatible. Therefore, it is necessary to carefully choose what type of memory to buy. When choosing a new memory module, take into consideration what types, capacities, and frequencies are supported by your motherboard.

Other types of memory
There are many other devices labeled as memory. These have, however, a completely different purpose. Apart from RAM, there are memory banks (HDB), memory cards (for data storage, for example in phones), and portable memory sticks (used to transfer data between computers).

Was this information useful?
This form is for collecting Feedback Only. If you have any other inquiries, please our Customer Care team here.
Is something missing or displayed incorrectly? Let us know your suggestions so we can improve the website and customer experience.

Enter product name

Note (link, Part number etc.):



Why buy from us? We have over 1 million items in stock More info »
My Alza Log In Shipping & Payment About Us
Shipping to:
WEB20

Why buy from us? We have over 1 million items in stock More info »