RAM

What is RAM?
Random Access Memory or RAM is a type of computer memory or storage. RAM is a piece of hardware within your computer that temporarily stores and retrieves data. It is also referred to as main memory, primary memory, primary storage or internal memory.
Essentially, RAM is your computer’s short term memory. It stores all of the data that your laptop or computer is currently using so that you can access programs and multitask without any delays.

What’s the difference between RAM and a hard drive?
RAM is short term memory and only holds information temporarily. Once you have switched your device off, all of the data stored within the RAM will be lost. On the other hand, a hard drive is the long term or permanent memory within your computer or laptop. It retains all information even when powered off.

Why is RAM so important?
RAM is important because it can impact the performance and day to day operation of your device. Acting as short term memory, RAM allows you to open multiple programmes that require greater processing power without impacting on the performance of your machine. When higher capacity RAM with a faster speed is installed within your device, the quicker your computer will run and accomplish tasks.

How much RAM do you need?
RAM is commonly available in 4GB, 8GB, 16GB or 32GB options. 4GB of RAM is typically found in entry level laptops and notebooks, while a system with 32GB of integrated RAM will be suitable for a computer or laptop required for complex photo and video editing, compositing and simulation. If you want to play games, 16GB of RAM is recommended to prevent the game from lagging or freezing.

What is DDR3 and DDR4?
DDR is a type of memory. DDR stands for Double Data Rate, and the number represents what type it is; type 3 or type 4. DDR3 RAM has been in use since 2007, while DDR4 was introduced in 2014. DDR3 provides a higher speed that previous iterations (DDR2 and DDR) and is still commonly available. DDR4 RAM is usually more expensive than DDR3 RAM, but has a higher speed and efficiency. DDR4 RAM uses less voltage but greater transfer rates than DDR3 RAM.

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Description Price Desktop/Laptop Capacity Industrial Speed Memory Class Memory Socket Module Type Pins Voltage CAS Latency
RS庫存編號 124-2613
製造零件編號CT4G4RFS8213
BrandCrucial
HK$689.68
單位
Server 4 GB - 2133MHz DDR4 RDIMM PC4-17000 288 1.2V 15
RS庫存編號 182-8193
製造零件編號KVR24N17S8/8
BrandKingston
HK$1,071.57
單位
Desktop 8 GB - 2400MHz DDR4 DIMM PC4-2400 288 1.2V 17
RS庫存編號 774-3111
製造零件編號CT25664AC800
BrandCrucial
HK$433.30
單位
Laptop 2 GB - 800MHz DDR SODIMM PC2-6400 200 1.8V 6
RS庫存編號 774-3098
製造零件編號CT2KIT25664AC800
BrandCrucial
HK$866.47
單位
Laptop 2 x 2 GB - 800MHz DDR2 SODIMM PC2-6400 200 1.8V 6
RS庫存編號 182-8186
製造零件編號KVR26N19S6/4
BrandKingston
HK$558.96
單位
Desktop 4 GB - 2666MHz DDR4 DIMM PC4-2666 288 1.2V 19
RS庫存編號 174-1864
製造零件編號CT2K8G4SFS824A
BrandCrucial
HK$1,777.88
單位
Laptop 2 x 8 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17
RS庫存編號 785-8073
製造零件編號MY04TFNSY-RA000-D
HK$538.71
單位
Desktop, Laptop 4 GB - - - - MLC, SLC 10 5V -
RS庫存編號 182-8183
製造零件編號KVR26S19S6/4
BrandKingston
HK$558.96
單位
Laptop 4 GB - 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
RS庫存編號 798-9607
製造零件編號TS128MSQ64V8U
BrandTranscend
HK$270.90
單位
Laptop 1 GB - 800MHz DDR2 SODIMM PC2-6400 200 1.8V 6
RS庫存編號 774-3066
製造零件編號CT12864AA667
BrandCrucial
HK$234.98
單位
Desktop 1 GB - 667MHz DDR2 DIMM PC2-5300 240 1.8V 5
RS庫存編號 774-3082
製造零件編號CT2KIT25664AA800
BrandCrucial
HK$866.47
單位
Desktop 2 x 2 GB - 800MHz DDR2 DIMM PC2-6400 240 1.8V 6
RS庫存編號 174-1855
製造零件編號CT16G4DFD8266
BrandCrucial
HK$1,892.82
單位
Desktop 16 GB - 2666MHz DDR4 UDIMM PC4-21300 288 1.2V 19
RS庫存編號 804-7701
製造零件編號KVR16LN11/4
BrandKingston
HK$412.98
單位
Desktop 4 GB - 1600MHz DDR3L DIMM PC3-12800 240 1.35 V, 1.5 V 11
RS庫存編號 180-5832
製造零件編號IN3V4GNZBIX
HK$624.00
單位
Laptop 4 GB - 1333MHz DDR3 SODIMM PC3-10600 204 1.5V 9
全新
RS庫存編號 187-9339
製造零件編號M4S0-AGS1O5IK
BrandInnoDisk
HK$1,914.54
單位
Laptop 16 GB Yes 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
RS庫存編號 180-5901
製造零件編號IN3T4GNAJKXLV
HK$523.24
單位
Desktop 4 GB - 1600MHz DDR3 DIMM PC3-12800 240 1.35V 11
全新
RS庫存編號 187-9343
製造零件編號M4U0-8GSSWCIK
BrandInnoDisk
HK$891.61
單位
Desktop 8 GB Yes 2666MHz DDR4 DIMM PC4-2666 288 1.2V 19
全新
RS庫存編號 187-9341
製造零件編號M4S0-8GS13CIK
BrandInnoDisk
HK$928.06
單位
Laptop 8 GB Yes 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
RS庫存編號 174-1859
製造零件編號CT4G4SFS824A
BrandCrucial
HK$486.35
單位
Laptop 4 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17
RS庫存編號 180-5908
製造零件編號IN4V16GNDLRX
HK$2,574.12
單位
Laptop 16 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17