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 804-7710
製造零件編號KVR1333D3N9/8G
BrandKingston
HK$1,000.30
單位
Desktop 8 GB - 1333MHz DDR3 DIMM PC3-10600 240 1.5V 9
RS庫存編號 774-3151
製造零件編號CT51264BD160B
BrandCrucial
HK$394.16
單位
Desktop, Server 4 GB - 1600MHz DDR3 DIMM PC3-12800 240 1.35V 11
RS庫存編號 774-3127
製造零件編號CT102464BD160B
BrandCrucial
HK$777.64
單位
Desktop 8 GB - 1600MHz DDR3 DIMM PC3-12800 240 1.35V 11
RS庫存編號 798-9616
製造零件編號TS1GLK64V6H
BrandTranscend
HK$1,638.58
單位
Desktop 8 GB - 1600MHz DDR3 DIMM PC3-12800 240 1.5V 11
RS庫存編號 758-6725
製造零件編號TS256MSQ64V6U-i
BrandTranscend
HK$1,008.57
單位
Laptop 2 GB - 667MHz DDR2 SODIMM PC2-5300 200 1.8V 5
RS庫存編號 798-9626
製造零件編號TS1GSK64V6H
BrandTranscend
HK$1,762.56
單位
Laptop 8 GB - 1600MHz DDR3 SODIMM PC3-12800 204 1.5V 11
全新
RS庫存編號 187-9329
製造零件編號M2UK-2GMFQC06-M
BrandInnoDisk
HK$606.52
單位
Desktop 2 GB Yes 800MHz DDR2 DIMM PC2-6400 240 1.8V 6
全新
RS庫存編號 187-9338
製造零件編號M4S0-8GS1N5IK
BrandInnoDisk
HK$1,006.88
單位
Laptop 8 GB Yes 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
RS庫存編號 798-9629
製造零件編號TS1GSK64V3H
BrandTranscend
HK$1,446.36
單位
Laptop 8 GB - 1333MHz DDR3 SODIMM PC3-10600 200 1.5V 9
全新
RS庫存編號 187-9330
製造零件編號M2UK-4GMJQC05-C
BrandInnoDisk
HK$2,737.60
單位
Desktop 4 GB Yes 800MHz DDR2 DIMM PC2-6400 240 1.8V 5
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 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
全新
RS庫存編號 187-9331
製造零件編號M3S0-2GSJELPC
BrandInnoDisk
HK$276.89
單位
Laptop 2 GB Yes 1600MHz DDR3L SODIMM - 204 1.35V 9
全新
RS庫存編號 187-9340
製造零件編號M4S0-4GSS3CIK
BrandInnoDisk
HK$487.39
單位
Laptop 4 GB Yes 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
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 -
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 798-9635
製造零件編號TS1GSK64V6H-I
BrandTranscend
HK$1,711.33
單位
Laptop 8 GB - 1600MHz DDR3 SODIMM PC3-12800 204 1.5V 11
全新
RS庫存編號 187-9336
製造零件編號M4S0-4GSSN5IK
BrandInnoDisk
HK$533.86
單位
Laptop 4 GB Yes 2666MHz DDR4 SODIMM PC4-2666 260 1.2V 19
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 180-5906
製造零件編號IN4V4GNDJRX
HK$673.69
單位
Laptop 4 GB - 2400MHz DDR4 SODIMM PC4-19200 260 1.2V 15