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 798-9632
製造零件編號TS256MLQ64V8U
BrandTranscend
HK$493.92
單位
Desktop 2 GB - 800MHz DDR2 DIMM PC2-6400 240 1.8V 6
RS庫存編號 182-8185
製造零件編號KVR26S19D8/16
BrandKingston
HK$2,092.21
單位
Laptop 16 GB - 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
RS庫存編號 174-1861
製造零件編號CT16G4SFD824A
BrandCrucial
HK$1,806.53
單位
Laptop 16 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17
RS庫存編號 774-3158
製造零件編號CT4G3S1339MCEU
BrandCrucial
HK$572.45
單位
Desktop 4 GB - 1333MHz DDR3 SODIMM PC3-10600 204 1.35V 7
RS庫存編號 180-5902
製造零件編號IN3V8GNZJIX
HK$1,013.42
單位
Laptop 8 GB - 1333MHz DDR3 SODIMM PC3-10600 204 1.5V 9
RS庫存編號 174-1858
製造零件編號CT2G4SFS624A
BrandCrucial
HK$348.02
單位
Laptop 2 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17
全新
RS庫存編號 187-9332
製造零件編號M3S0-4GSJULQE
BrandInnoDisk
HK$485.33
單位
Laptop 4 GB Yes 1866MHz DDR3L SODIMM - 204 1.35V 13
RS庫存編號 804-7713
製造零件編號KVR16N11/8
BrandKingston
HK$943.44
單位
Desktop 8 GB - 1600MHz DDR3 DIMM PC3-12800 240 1.5V 11
RS庫存編號 758-6734
製造零件編號TS128MLK64V3U-i
BrandTranscend
HK$320.00
單位
Desktop 1 GB - 1333MHz DDR3 DIMM PC3-10600 240 1.5V 9
RS庫存編號 180-5835
製造零件編號IN2V2GNWNEX
HK$407.68
單位
Laptop 2 GB - 667MHz DDR2 SODIMM PC2-5300 200 1.8V 5
RS庫存編號 174-1865
製造零件編號CT2K16G4SFD824A
BrandCrucial
HK$3,612.95
單位
Laptop 2 x 16 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 17
RS庫存編號 180-5837
製造零件編號INCFA64G-550/540
HK$637.87
單位
- - - - - - - - - -
RS庫存編號 174-1847
製造零件編號CT4G4DFS824A
BrandCrucial
HK$486.35
單位
Desktop 4 GB - 2400MHz DDR4 UDIMM PC4-19200 288 1.2V 17
RS庫存編號 804-7739
製造零件編號KVR16LS11/4
BrandKingston
HK$531.48
單位
Laptop 4 GB - 1600MHz DDR3L SODIMM PC3-12800 204 1.35 V, 1.5 V 11
RS庫存編號 785-8077
製造零件編號MY08TFPSY-RA000-D
HK$1,240.81
單位
Desktop, Laptop 8 GB - - - - - 10 5V -
RS庫存編號 774-3063
製造零件編號CT12864Z335
BrandCrucial
HK$407.60
單位
Desktop 1 GB - 333MHz DDR DIMM PC-2700 184 2.5V 2.5
RS庫存編號 774-3079
製造零件編號CT25664AA667
BrandCrucial
HK$433.30
單位
Desktop 2 GB - 667MHz DDR2 DIMM PC2-5300 240 1.8V 5
全新
RS庫存編號 187-9327
製造零件編號M2SK-4GMJ6C05-C
BrandInnoDisk
HK$2,737.60
單位
Laptop 4 GB Yes 800MHz DDR2 SODIMM PC2-6400 200 1.8V 5
RS庫存編號 174-1854
製造零件編號CT8G4DFS8266
BrandCrucial
HK$931.67
單位
Desktop 8 GB - 2666MHz DDR4 UDIMM PC4-21300 288 1.2V 19
RS庫存編號 774-3114
製造零件編號CT12864AC667
BrandCrucial
HK$234.98
單位
Laptop 1 GB - 667MHz DDR2 SODIMM PC2-5300 200 1.8V 5