RAM PC Memory (112 products)

If you're looking for new RAM, take a look at the wide range of memory we have available. With sizes and speeds available to suit every need and budget, you can be sure to find RAM to improve your build and ensure applications run quickly and smoothly.

Read more about RAM PC Memory

Showing 1 - 24 of 112 results
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Corsair Vengeance LPX Black 4GB (1x4GB) Ddr4 2400mhz 1.2v Standard Dimm

  • Density: 4GB 2400MHz
  • Latency: 14-16-16-31
  • Low Profile & Heatspreader
  • Designed for high-performance overclocking

£ 19.98  inc. vat

£23.99save £4.01

£ 16.65 ex. vat

£19.99save £3.34
More Info

Corsair 4GB DDR3 1600MHz DIMM Unbuffered Memory

  • CL11 (11-11-11-30)
  • 1.5v
  • Limited Lifetime Manufacturer Warranty

£ 18.95  inc. vat

£ 15.79 ex. vat

More Info

4gb Ddr3 1600mhz Cl11 Non Ec - Dimm Pc3-12800 1.5v Leg

  • 4GB DDR3 1600MHZ 1.5V Memory Module
  • Improve System Performance
  • Designed for compatibility with various makes and models of computers...
  • Easy Installation

£ 14.99  inc. vat

£17.99save £3.00

£ 12.49 ex. vat

£14.99save £2.50
More Info

Kingston Memory 4GB DDR3L 1600MHz 240-pin DIMM Memory

  • 4GB DDR3L Memory Module
  • Clock speed 1600 MHz PC-12800
  • form factor DIMM 240-pin

£ 14.98  inc. vat

£28.98save £14.00

£ 12.48 ex. vat

£24.15save £11.67
More Info

Adata Premier 4GB DDR4 2666 UDIMM Memory

  • Capacity: (1 x 4GB)
  • Form Factor: UDIMM
  • Speed: 2666 MHz
  • Lifetime Warranty

£ 22.65  inc. vat

£ 18.87 ex. vat

More Info

Corsair Value select 4GB DDR4 2400Mhz - OEM Packaged

  • OEM Packaged
  • Non-ECC Unbuffered
  • 1 x 4GB DDR4 Memory
  • 2400Mhz

£ 19.98  inc. vat

£ 16.65 ex. vat

More Info

Crucial CT4G4DFS8266 4GB DDR4 2666 UDIMM

  • 4GB DDR4 2666 MT/S PC4-21300 CL19 SR X8 UDIMM 288PIN
  • Limited lifetime warranty

£ 22.98  inc. vat

£ 19.15 ex. vat

More Info

Synology 1600 DDR3-4GB RAM Memory

  • DDR3 SDRAM
  • DRAM
  • 4 GB
  • 1600 MHz ( PC3-12800 )

£ 77.81  inc. vat

£ 64.84 ex. vat

More Info

Kingston FURY Beast 4GB 2666MHz DDR4 RAM - Black

  • Latency Timing CL16
  • Speed: 2666 MHz
  • 1 x 4GB DIMM Memory
  • Intel XMP Profile Support: Yes
  • KF426C16BB/4

£ 20.49  inc. vat

£ 17.07 ex. vat

More Info

Kingston Valueram 4GB (1X 4GB) DDR4 2666MHZ RAM

  • Voltage: 1.2V
  • Latency Timing: C19
  • Speed: 2666MHz (PC4-21300)
  • 1 x 4GB DIMM Memory

£ 20.49  inc. vat

£22.41save £1.92

£ 17.07 ex. vat

£18.67save £1.60
More Info

Kingston DDR4 - 4 GB - DIMM 288-pin

  • Memory Size: 4 GB
  • Memory Technology: DDR4 SDRAM
  • Memory Speed: 2666 MHz
  • Memory Standard: DDR4-2666/PC4-21300
  • Device Supported: Desktop PC

£ 21.99  inc. vat

£ 18.32 ex. vat

More Info

Patriot Signature Line 4GB DDR4 DRAM Module 2400 MHz (PC4-19200) PSD44G240081

  • PC4-19200 (2400MHz) dual Data Rate
  • Non-ECC Unbuffered
  • 1.2V Power Requirement
  • Lifetime Warranty

£ 23.13  inc. vat

£ 19.27 ex. vat

More Info

Kingston Specific Memory 4GB DDR3 1600MHz 240-pin DIMM Memory

  • 4GB DDR3 Memory Module
  • Clock speed 1600 MHz PC-12800
  • form factor DIMM 240-pin

£ 27.99  inc. vat

£29.99save £2.00

£ 23.32 ex. vat

£24.99save £1.67
More Info

Kingston 4GB 1600MHz DDR3L Non-ECC CL11 UDIMM 1.35V Memory

  • 4GB
  • DDR3
  • 1600MHz
  • CL11
  • 1.35v

£ 28.98  inc. vat

£ 24.15 ex. vat

More Info

Kingston 4GB DDR3 1600MHz Memory

  • 4GB DDR3 CL11
  • 1.5v Non ECC
  • 1600 MHz DIMM 240-pin

£ 27.99  inc. vat

£ 23.32 ex. vat

More Info

Patriot Viper 4 16GB (2x 8GB) 3200MHz DDR4 RAM

  • Voltage: 1.35V / Latency Timing: CL16
  • Module Name: PC4-25600
  • 2 X 8GB Dual Channel
  • Intel XMP Profile Support
  • non-ECC Unbuffered Memory

£ 47.99  inc. vat

£ 39.99 ex. vat

More Info

Patriot Viper Elite II 16GB (2x 8GB) 3200MHz DDR4

  • 16GB (8GB x 2)
  • 3200MHz (PC4-25600)
  • 2 x 8GB DIMM Dual Channel Kit
  • Intel XMP Profile Support
  • non-ECC Unbuffered Memory

£ 46.98  inc. vat

£ 39.15 ex. vat

More Info

Corsair Vengeance RGB PRO Black 16GB 3600 MHz DDR4 Dual Channel Memory Kit

  • Dynamic Multi-Zone RGB Lighting: 10 Ultra-bright RGB LEDs per module....
  • Next Generation Software: Take control in CORSAIR iCUE software and...

£ 69.99  inc. vat

£94.48save £24.49

£ 58.32 ex. vat

£78.73save £20.41
More Info

Corsair Vengeance LPX Black 16GB 3200 MHz AMD Ryzen Tuned DDR4 Memory Kit

  • 16GB (2x 8GB)
  • PC4-25600 (3200)
  • 1.35V
  • AMD Ryzen Optimised

£ 61.11  inc. vat

£86.39save £25.28

£ 50.92 ex. vat

£71.99save £21.07
More Info

Patriot Viper RGB 16GB (2 x 8GB) 3200MHz Black Kit

  • DDR4
  • 16GB Kit (2x8GB)
  • XMP 2.0 support for automatic overclocking
  • 5 Customizable RGB zones to add some flare to your PC

£ 59.99  inc. vat

£ 49.99 ex. vat

More Info

Corsair Vengeance LPX 16GB (2x8GB) DDR4 3000 MHz

  • Each Vengeance LPX module is built with a pure aluminium heat spreader...
  • Fast heat dissipation and cooler operation
  • 16GB (8GBx2) | 3000MHz

£ 51.99  inc. vat

£83.24save £31.25

£ 43.32 ex. vat

£69.36save £26.04
More Info

Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 Memory Kit - Black

  • 16GB Kit (2 x 8GB)
  • Speed Rating PC4-25600 (3200MHz)
  • Memory Configuration Dual / Quad Channel
  • Memory Type DDR4
  • Limited Lifetime Warranty

£ 62.00  inc. vat

£83.33save £21.33

£ 51.66 ex. vat

£69.44save £17.78
More Info

ADATA XPG Spectrix D60G RGB LED 16GB (2 x 8GB) DDR4 3200MHz (PC4-25600) CL16 XMP 2.0 DIMM Memory

  • 16GB (8GB x 2)
  • 3200Mhz DDR4
  • PC4-25600
  • CAS Latency CL16

£ 53.43  inc. vat

£ 44.52 ex. vat

More Info

Corsair Vengeance RGB Pro 16GB Kit (2 x 8GB), DDR4, 3200MHz (PC4-25600), CL16, XMP 2.0, Ryzen Optimised, DIMM Memory

  • 16GB (8GB x 2)
  • 3200Mhz DDR4
  • Ryzen Optimized
  • Timings 16-18-18-36

£ 70.78  inc. vat

£102.96save £32.18

£ 58.98 ex. vat

£85.80save £26.82
More Info

Corsair Vengeance LPX Black 4GB (1x4GB) Ddr4 2400mhz 1.2v Standard Dimm

  • Density: 4GB 2400MHz
  • Latency: 14-16-16-31
  • Low Profile & Heatspreader
  • Designed for high-performance overclocking

QuickFind: 711714

Mfr part code: CMK4GX4M1A2400C14

£ 19.98  inc. vat

£23.99save £4.01

£ 16.65 ex. vat

£19.99save £3.34
More Info

Corsair 4GB DDR3 1600MHz DIMM Unbuffered Memory

  • CL11 (11-11-11-30)
  • 1.5v
  • Limited Lifetime Manufacturer Warranty

QuickFind: 399241

Mfr part code: CMV4GX3M1A1600C11

£ 18.95  inc. vat

£ 15.79 ex. vat

More Info

4gb Ddr3 1600mhz Cl11 Non Ec - Dimm Pc3-12800 1.5v Leg

  • 4GB DDR3 1600MHZ 1.5V Memory Module
  • Improve System Performance
  • Designed for compatibility with various makes and models of computers...
  • Easy Installation

QuickFind: 909234

Mfr part code: V7128004GBD-DR

£ 14.99  inc. vat

£17.99save £3.00

£ 12.49 ex. vat

£14.99save £2.50
More Info

Kingston Memory 4GB DDR3L 1600MHz 240-pin DIMM Memory

  • 4GB DDR3L Memory Module
  • Clock speed 1600 MHz PC-12800
  • form factor DIMM 240-pin

QuickFind: 737967

Mfr part code: KCP3L16NS8/4

£ 14.98  inc. vat

£28.98save £14.00

£ 12.48 ex. vat

£24.15save £11.67
More Info

Adata Premier 4GB DDR4 2666 UDIMM Memory

  • Capacity: (1 x 4GB)
  • Form Factor: UDIMM
  • Speed: 2666 MHz
  • Lifetime Warranty

QuickFind: 855247

Mfr part code: AD4U2666W4G19-S

£ 22.65  inc. vat

£ 18.87 ex. vat

More Info

Corsair Value select 4GB DDR4 2400Mhz - OEM Packaged

  • OEM Packaged
  • Non-ECC Unbuffered
  • 1 x 4GB DDR4 Memory
  • 2400Mhz

QuickFind: 973636

Mfr part code: CM4X4GF2400C16N2

£ 19.98  inc. vat

£ 16.65 ex. vat

More Info

Crucial CT4G4DFS8266 4GB DDR4 2666 UDIMM

  • 4GB DDR4 2666 MT/S PC4-21300 CL19 SR X8 UDIMM 288PIN
  • Limited lifetime warranty

QuickFind: 882333

Mfr part code: CT4G4DFS8266

£ 22.98  inc. vat

£ 19.15 ex. vat

More Info

Synology 1600 DDR3-4GB RAM Memory

  • DDR3 SDRAM
  • DRAM
  • 4 GB
  • 1600 MHz ( PC3-12800 )

QuickFind: 697260

Mfr part code: RAM1600DDR3-4GB

£ 77.81  inc. vat

£ 64.84 ex. vat

More Info

Kingston FURY Beast 4GB 2666MHz DDR4 RAM - Black

  • Latency Timing CL16
  • Speed: 2666 MHz
  • 1 x 4GB DIMM Memory
  • Intel XMP Profile Support: Yes
  • KF426C16BB/4

QuickFind: 1286114

Mfr part code: KF426C16BB/4

£ 20.49  inc. vat

£ 17.07 ex. vat

More Info

Kingston Valueram 4GB (1X 4GB) DDR4 2666MHZ RAM

  • Voltage: 1.2V
  • Latency Timing: C19
  • Speed: 2666MHz (PC4-21300)
  • 1 x 4GB DIMM Memory

QuickFind: 963872

Mfr part code: KVR26N19S6/4

£ 20.49  inc. vat

£22.41save £1.92

£ 17.07 ex. vat

£18.67save £1.60
More Info

Kingston DDR4 - 4 GB - DIMM 288-pin

  • Memory Size: 4 GB
  • Memory Technology: DDR4 SDRAM
  • Memory Speed: 2666 MHz
  • Memory Standard: DDR4-2666/PC4-21300
  • Device Supported: Desktop PC

QuickFind: 909515

Mfr part code: KCP426NS6/4

£ 21.99  inc. vat

£ 18.32 ex. vat

More Info

Patriot Signature Line 4GB DDR4 DRAM Module 2400 MHz (PC4-19200) PSD44G240081

  • PC4-19200 (2400MHz) dual Data Rate
  • Non-ECC Unbuffered
  • 1.2V Power Requirement
  • Lifetime Warranty

QuickFind: 900705

Mfr part code: PSD44G240081

£ 23.13  inc. vat

£ 19.27 ex. vat

More Info

Kingston Specific Memory 4GB DDR3 1600MHz 240-pin DIMM Memory

  • 4GB DDR3 Memory Module
  • Clock speed 1600 MHz PC-12800
  • form factor DIMM 240-pin

QuickFind: 737968

Mfr part code: KCP316NS8/4

£ 27.99  inc. vat

£29.99save £2.00

£ 23.32 ex. vat

£24.99save £1.67
More Info

Kingston 4GB 1600MHz DDR3L Non-ECC CL11 UDIMM 1.35V Memory

  • 4GB
  • DDR3
  • 1600MHz
  • CL11
  • 1.35v

QuickFind: 612415

Mfr part code: KVR16LN11/4

£ 28.98  inc. vat

£ 24.15 ex. vat

More Info

Kingston 4GB DDR3 1600MHz Memory

  • 4GB DDR3 CL11
  • 1.5v Non ECC
  • 1600 MHz DIMM 240-pin

QuickFind: 394568

Mfr part code: KVR16N11S8/4

£ 27.99  inc. vat

£ 23.32 ex. vat

More Info

Patriot Viper 4 16GB (2x 8GB) 3200MHz DDR4 RAM

  • Voltage: 1.35V / Latency Timing: CL16
  • Module Name: PC4-25600
  • 2 X 8GB Dual Channel
  • Intel XMP Profile Support
  • non-ECC Unbuffered Memory

QuickFind: 807442

Mfr part code: PV416G320C6K

£ 47.99  inc. vat

£ 39.99 ex. vat

More Info

Patriot Viper Elite II 16GB (2x 8GB) 3200MHz DDR4

  • 16GB (8GB x 2)
  • 3200MHz (PC4-25600)
  • 2 x 8GB DIMM Dual Channel Kit
  • Intel XMP Profile Support
  • non-ECC Unbuffered Memory

QuickFind: 1264288

Mfr part code: PVE2416G320C8K

£ 46.98  inc. vat

£ 39.15 ex. vat

More Info

Corsair Vengeance RGB PRO Black 16GB 3600 MHz DDR4 Dual Channel Memory Kit

  • Dynamic Multi-Zone RGB Lighting: 10 Ultra-bright RGB LEDs per module....
  • Next Generation Software: Take control in CORSAIR iCUE software and...

QuickFind: 919328

Mfr part code: CMW16GX4M2D3600C18

£ 69.99  inc. vat

£94.48save £24.49

£ 58.32 ex. vat

£78.73save £20.41
More Info

Corsair Vengeance LPX Black 16GB 3200 MHz AMD Ryzen Tuned DDR4 Memory Kit

  • 16GB (2x 8GB)
  • PC4-25600 (3200)
  • 1.35V
  • AMD Ryzen Optimised

QuickFind: 794997

Mfr part code: CMK16GX4M2Z3200C16

£ 61.11  inc. vat

£86.39save £25.28

£ 50.92 ex. vat

£71.99save £21.07
More Info

Patriot Viper RGB 16GB (2 x 8GB) 3200MHz Black Kit

  • DDR4
  • 16GB Kit (2x8GB)
  • XMP 2.0 support for automatic overclocking
  • 5 Customizable RGB zones to add some flare to your PC

QuickFind: 840601

Mfr part code: PVR416G320C6K

£ 59.99  inc. vat

£ 49.99 ex. vat

More Info

Corsair Vengeance LPX 16GB (2x8GB) DDR4 3000 MHz

  • Each Vengeance LPX module is built with a pure aluminium heat spreader...
  • Fast heat dissipation and cooler operation
  • 16GB (8GBx2) | 3000MHz

QuickFind: 833629

Mfr part code: CMK16GX4M2D3000C16

£ 51.99  inc. vat

£83.24save £31.25

£ 43.32 ex. vat

£69.36save £26.04
More Info

Corsair Vengeance LPX 16GB (2x8GB) DDR4 DRAM 3200MHz C16 Memory Kit - Black

  • 16GB Kit (2 x 8GB)
  • Speed Rating PC4-25600 (3200MHz)
  • Memory Configuration Dual / Quad Channel
  • Memory Type DDR4
  • Limited Lifetime Warranty

QuickFind: 743022

Mfr part code: CMK16GX4M2B3200C16

£ 62.00  inc. vat

£83.33save £21.33

£ 51.66 ex. vat

£69.44save £17.78
More Info

ADATA XPG Spectrix D60G RGB LED 16GB (2 x 8GB) DDR4 3200MHz (PC4-25600) CL16 XMP 2.0 DIMM Memory

  • 16GB (8GB x 2)
  • 3200Mhz DDR4
  • PC4-25600
  • CAS Latency CL16

QuickFind: 1410364

Mfr part code: AX4U32008G16A-DT60

£ 53.43  inc. vat

£ 44.52 ex. vat

More Info

Corsair Vengeance RGB Pro 16GB Kit (2 x 8GB), DDR4, 3200MHz (PC4-25600), CL16, XMP 2.0, Ryzen Optimised, DIMM Memory

  • 16GB (8GB x 2)
  • 3200Mhz DDR4
  • Ryzen Optimized
  • Timings 16-18-18-36

QuickFind: 1144348

Mfr part code: CMW16GX4M2Z3200C16

£ 70.78  inc. vat

£102.96save £32.18

£ 58.98 ex. vat

£85.80save £26.82
More Info
Showing 1 - 24 of 112 results
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Desktop PC memory stores the programmes and applications that are running on a computer, including the operating system. Referred to as RAM (Random Access Memory), it's installed in the PC as modules typically in banks of 4 or 8GB. Generally speaking, the more memory a computer has, the more easily it can cope with multitasking.

Shopping for PC Memory?

When shopping for new RAM it's important to remember that size isn't everything. More RAM will allow you to multi-task or use larger applications more easily, however RAM is also graded on speed. Higher DDR certifications typically run more quickly, with the exact speed measured in MHz. It's important to check you're buying RAM that is compatible with your build. The DDR version used of your new RAM must match the version supported by your motherboard, otherwise you won't be able to install it. Your motherboard will also have a maximum amount of RAM supported - double check you have enough free slots before buying an extra stick of RAM.

What is DDR4 memory?

DDR4 RAM is the latest generation of Double Data Rate memory. That means that DDR4 RAM runs at higher speeds than older generations - but the capacity is still the most important factor when it comes to your memory needs. DDR4 RAM improves the 'clock speed' from the previous generation, which is the speed at which it can read and write data.

If you need to get a little more performance out of your gaming PC, upgrading to DDR4 RAM (as long as your machine is compatible!) might be a good way to go about it, compared to the high costs of a new graphics card or processor.

What is RAM in a computer?

RAM stands for Random Access Memory, a form of volatile memory that stores information temporarily. It doesn't store files the way that your hard drive does - this memory can be retrieved from your system's RAM, which is much quicker than reading data from the hard drive. Once an application no longer requires this information, or once the system is shut down, this information is discarded and the RAM can be reused.

What does RAM do?

RAM is essentially a form of high-speed, short-term memory for your system - it temporarily stores all of the data it thinks your computer might need in that moment or the near future. This means when an application or user requires this data, the system can retrieve it more quickly. Modern operating systems often pre-cache applications and data in unused RAM to improve system responsiveness.

How much RAM do I need?

The more programs or processes you're running, the more RAM you need. So if you're just typing an essay in Microsoft Word, for example, a computer with low RAM might be able to handle that - but if you're simultaneously streaming music, browsing the internet with a few tabs open, watching a quick video clip on a news site, editing a document and running a sweep with antivirus software, your system needs more memory to handle all of those processes at once, and to let you multitask and switch between them.

Modern desktop PCs, laptops, tablets and even phones might have somewhere from 4GB up to 32GB of RAM. For reference, Windows 10 takes 2GB of RAM just to run, so you'll almost certainly need more. But it's still worth remembering that as much as having more RAM is better, at a certain point, adding more RAM to your PC won't make it go any faster.

8GB is fine for basic multitasking and casual users, and can handle a little bit of gaming, but if you want to use your PC or laptop for something a bit more intensive, you'll want to move up. 16GB of RAM is great for Windows and Mac users, and good for gaming, but serious gamers will want to be looking at 32GB upwards in order to get great performance without freezing or lagging. If you're a professional who needs to edit huge image files or video, then you might want to go even higher, past 64GB up to a whopping 128GB.

What is ROM and RAM in computer?

The essential difference between ROM and RAM is their core purpose - RAM is intended for temporary storage in order to speed up computing processes, and therefore needs power to retain information.

ROM, including hard drives and SSDs, is non-volatile, meaning these formats store data over the long-term. Read Only Memory is necessary for storing important files, programs, and the operating system when they are not in use, so that these can be restored at a later date.