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 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CT51264BA160B
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
全新
RS庫存編號 187-9331
製造零件編號M3S0-2GSJELPC
BrandInnoDisk
HK$276.89
單位
- - - - - - - - -
RS庫存編號 124-2614
製造零件編號CT8G4RFD8213
BrandCrucial
HK$1,319.27
單位
Server 8 GB 2133MHz DDR4 RDIMM PC4-17000 288 1.2V 15
RS庫存編號 774-3139
製造零件編號CT102464BF160B
BrandCrucial
HK$827.18
單位
Laptop 8 GB 1600MHz DDR3 SODIMM PC3-12800 204 1.35V 11
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 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
RS庫存編號 798-9597
製造零件編號TS128MLQ64V8U
BrandTranscend
HK$274.55
單位
Desktop 1 GB 800MHz DDR2 DIMM PC2-6400 240 1.8V 6
RS庫存編號 774-3057
製造零件編號CT6464Z40B
BrandCrucial
HK$275.08
單位
Desktop 512 MB 400MHz DDR DIMM PC-3200 184 2.6V 3
全新
RS庫存編號 187-9341
製造零件編號M4S0-8GS13CIK
BrandInnoDisk
HK$928.06
單位
- - - - - - - - -
全新
RS庫存編號 187-9332
製造零件編號M3S0-4GSJULQE
BrandInnoDisk
HK$485.33
單位
- - - - - - - - -
RS庫存編號 174-1848
製造零件編號CT8G4DFS824A
BrandCrucial
HK$889.06
單位
Desktop 8 GB 2400MHz DDR4 UDIMM PC4-19200 288 1.2V 17
RS庫存編號 180-5905
製造零件編號IN4T16GNDLRX
HK$2,549.62
單位
Desktop 16 GB 2400MHz DDR4 DIMM PC4-19200 288 1.2V 17
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
全新
RS庫存編號 187-9343
製造零件編號M4U0-8GSSWCIK
BrandInnoDisk
HK$891.61
單位
- - - - - - - - -
RS庫存編號 804-7745
製造零件編號KVR1333D3S9/8G
BrandKingston
HK$1,047.98
單位
Laptop 8 GB 1333MHz DDR3 SODIMM PC3-10600 204 1.5V 9
全新
RS庫存編號 182-8192
製造零件編號KVR24N17S6/4
BrandKingston
HK$558.96
單位
Desktop 4 GB 2400MHz DDR4 DIMM PC4-2400 288 1.2V 17