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Memory - RAM

Not sure how much RAM you need? Read our Memory Buying Guide

Random Access Memory (RAM) is where data the CPU is working with is temporarily stored. More RAM is generally better, although there are diminishing returns above 16GB for consumer PC, while 32-bit versions of Windows only support a maximum of 4GB. Speed, measured in MHz, is another consideration, as is latency, but most importantly memory needs to be compatible with your motherboard: it'll either be DDR, DDR2, DDR3 or DDR4, and modern AMD- and Intel-based PCs use DDR4 memory alone. Smaller SODIMM modules for laptops and mini PCs and ECC registered memory for servers are all available in this category.

DDR4 Single/Dual Channel 2133MHz RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channelmodes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are designed for Intel Kaby Lake, Intel Skylake & AMD RYZEN, so they're sold in matching kits of two modules for best performance or single modules for a cheap upgrade. These are the most basic kits around, with a speed of 2,133MHz.

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DDR4 Single/Dual Channel 2400MHz RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channelmodes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are designed for Intel Kaby Lake, Intel Skylake & AMD RYZEN, so they're sold in matching kits of two modules for best performance or single modules for a cheap upgrade. These are the mid-range kits, with a speed of 2,400MHz.

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DDR4 Single/Dual Channel 2666MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are designed for Intel Kaby Lake & Skylake, so they're sold in matching kits of two modules for best performance or single modules for a cheap upgrade. These are the mid-range kits, with a speed of at least 2,666MHz.

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DDR4 Single/Dual Channel 3000MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are designed for Intel Kaby Lake & Skylake, so they're sold in matching kits of two modules for best performance or single modules for a cheap upgrade. These are the high-end kits, with a speed of at least 3,000Hz.

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DDR4 Single/Dual Channel 3600MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are designed for Intel Kaby Lake & Skylake, so they're sold in matching kits of two modules for best performance or single modules for a cheap upgrade. These are the high-end kits, with a speed of at least 3,600Hz.

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DDR4 Quad Channel 2133MHz RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are the most basic kits around, with a speed of 2,133MHz.

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DDR4 Quad Channel 2400MHz RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are the mid-range kits, with a speed of 2,400MHz.

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DDR4 Quad Channel 2666MHz RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are the mid-range kits, with a speed of 2,666MHz.

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DDR4 Quad Channel 2800MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are the high-end kits, with a speed of at least 2,800MHz.

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DDR4 Quad Channel 3200MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are fast premium kits with speeds of at least 3200MHz.

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DDR4 Quad Channel 3600MHz+ RAM Memory Kits

DDR4 SDRAM is the fastest and most efficient consumer memory available. It's compatible with Intel's Broadwell-E which run in quad-channel and Kaby Lake & Skylake CPUs which run in dual-channel modes. It is also compatible with AMD's latest RYZEN CPUs running in a dual-channel configuration. The modules found here are intended for use with Intel Broadwell-E or Haswell-E CPUs, using an Intel X99 motherboard which runs in quad-channel mode. That's what these modules are designed for, so they're sold in matching kits of four or eight. These are fastest & most premium kits around with speeds of at least 3600MHz.

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DDR3 Single/Dual Channel 1333MHz RAM Memory Kits

DDR3 SDRAM is an evolution of DDR2 SDRAM. Designed for todays systems which support DDR3, the primary benefit of DDR3 is the ability to transfer data at a much higher rate than DDR2 due to the higher clock rate. This allows you to take advantage of the high speeds of todays CPU's. These memory modules are available in single, dual and quad packs, and have a clock speed of 1333Mhz.
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DDR3 Single/Dual Channel 1600MHz+ RAM Memory Kits

DDR3 SDRAM is an evolution of DDR2 SDRAM. Designed for todays systems which support DDR3, the primary benefit of DDR3 being the ability to transfer data at a much higher rate than DDR2 due to the higher clock rate. This allows you to take advantage of the high speeds offered by todays CPU's. These memory modules are available in single, dual and quad packs, and have a clock speed of 1600Mhz.
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DDR3L Single/Dual Channel 1600MHz+ RAM Memory Kits

DDR3L differs from traditional DDR3 as it runs at 1.35V rather than 1.5V. This means it consumes less power and runs cooler. DDR3L is required for Intel Skylake CPUs using the Z170 chipset. For the best performance choose a pair of DIMMs running together in dual-channel mode at the highest frequency you can afford. These are the entry-level kits, with speeds between 1,600MHz and 2,133MHz.

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DDR3 Quad Channel 1600MHz RAM Memory Kits

DDR3 memory is the most common memory. Excluding Intel X99, all current generation Intel and AMD desktop chipsets (and many previous generations too) use it. The modules here come in all shapes, sizes and colours so you can match your system's aesthetic, but are all clocked at 1,600MHz. They come either in kits of two or as single units, but it's best to use matching modules if you need multiple sticks.

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DDR4 SO-DIMM 2133MHz RAM Memory Kits

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DDR4 SO-DIMM 2400MHz+ RAM Memory Kits

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DDR3 SO-DIMM 1066MHz+ RAM Memory Kits

SODIMM memory is smaller than standard modules, and is used in laptops and mini-PCs. As long as you can access your system's memory slots, you can upgrade it. The kits here come in a range of speeds and capacities, so make sure your system is compatible with the memory you choose.

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DDR3L SO-DIMM 1600MHz+ RAM Memory Kits

SODIMM memory is smaller than standard modules, and is used in laptops and mini-PCs. As long as you can access your system's memory slots, you can upgrade it. The kits here come in a range of speeds and capacities, so make sure your system is compatible with the memory you choose.

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Apple Mac DDR3/DDR3L SO-DIMM RAM Memory Kits

The Mac Memory SODIMMs allow users to maximize memory bandwidth and minimize performance bottlenecks to deliver a superior user experience. Built to Corsair’s legendary quality and reliability standards, each module is tested to ensure maximum compatibility. Each Mac Memory module is individually tested and certified to be compatible with Apple products.

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DDR SO-DIMM 400MHz RAM Memory Kits

SO-DIMMs are a smaller alternative to a DIMM, being roughly half the size of regular DIMMs. SO-DIMMS are often used in systems which have space restrictions such as notebooks, small footprint PCs such as those with a Mini-ITX motherboard and high-end upgradable office printers.

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DDR3 Triple Channel 1333MHz RAM Memory Kits

DDR3 Triple Channel Memory is a set of three or six matched memory modules, specifically for Intel X58 Chipset Motherboards which feature three or six memory slots. Triple channel memory will have a higher bandwidth than a dual (2 memory module) channel memory system. These Memory modules come with a clock speed of 1333Mhz, and are available in packs of three or six modules. Always fit triple channel memory modules as a complete set to your motherboard.
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SDRAM 133MHz RAM Memory Kits

SDRAM or Synchronous Dynamic Random Access Memory or Synchronous DRAM. A DRAM designed to deliver bursts of data at very high speed using automatic addressing, multiple page interleaving and a synchronous (or clocked) interface. Speeds of these modules are either 100Mhz and 133Mhz

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Server DDR4 2133MHz RAM Memory Kits

DDR4 server memory brings maximum speed and efficiency to Intel's quad-channel Xeon E5 and six-channel Xeon Scalable platform and AMD's eight-channel EPYC platform.

Server memory is designed to have rock solid stability 24/7. ECC (error correcting code) modules are immune to errors, while registered/buffered sticks reduce memory controller load and ensure additional stability when using many modules together. Motherboards need to support ECC and registered memory for these features to work. These particular modules are rated up to 2133MHz.

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Server DDR4 2400MHz RAM Memory Kits

DDR4 server memory brings maximum speed and efficiency to Intel's quad-channel Xeon E5 and six-channel Xeon Scalable platform and AMD's eight-channel EPYC platform.

Server memory is designed to have rock solid stability 24/7. ECC (error correcting code) modules are immune to errors, while registered/buffered sticks reduce memory controller load and ensure additional stability when using many modules together. Motherboards need to support ECC and registered memory for these features to work. These particular modules are rated up to 2400MHz.

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Server DDR4 2666MHz RAM Memory Kits

DDR4 server memory brings maximum speed and efficiency to Intel's six-channel Xeon Scalable platform.

Server memory is designed to have rock solid stability 24/7. ECC (error correcting code) modules are immune to errors, while registered/buffered sticks reduce memory controller load and ensure additional stability when using many modules together. Motherboards need to support ECC and registered memory for these features to work. These particular modules are rated up to 2666MHz.

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Server DDR4 2933MHz RAM Memory Kits

DDR4 server memory brings maximum speed and efficiency to Intel's six-channel Xeon Scalable platform.

Server memory is designed to have rock solid stability 24/7. ECC (error correcting code) modules are immune to errors, while registered/buffered sticks reduce memory controller load and ensure additional stabili