first of all its if NOT is
two seprate module of even same company will give less performance, because they are installed of a same bus, so one module can performa his action while second have to wait. on the other hand single module will give more performance.
it depends on the make of the laptop. Most laptops have a space for two DIMMs. Most DIMM sizes max out at 1gb. That gives you room for 2gb.
There are no disadvantages, both are the same. Using one 2gb stick of memory will allow you to add another memory upgrade in the future.
PC 2700 Memory, for a 1GB DIMM, costs around $14. There are also places offering a 2GB kit (2x 1GB DIMMs) for around $37. You should make sure that the memory you buy is the correct specification for your motherboard, or it may not work.
In principle, you could 896 MB, however you'll almost certainly have to remove the 128MB memory and replace it (probably with two 512MB). If this is what I think it is, namely a blue and white Apple Power Macintosh G3, the computer had two 64MB DIMMs in it when it shipped. You have three options: Install two 256MB DIMMs (always PC133--the book says PC100, but PC133 is compatible and it's all you can get now anyway) alongside the 64MB DIMMs to have 640MB RAM. Remove one 64MB DIMM and install three 256MB DIMMs for 896MB. Remove both 64MB DIMMs and install four 256MB DIMMs for 1GB.
The specifications states that the two DIMM sockets on the board have these features: * 2.5V DDR SDRAM DIMMs * Unbuffered, single-sided or double-sided DIMMs * ** except for double-sided DIMMs with x16 organization * Non-ECC DIMMs * DDR 400MHz and DDR 333MHz SDRAM DIMMs It should support 1GB chips with the following organizations: * single-sided, 128Mbit x 8 front-side / empty back-side * double-sided, 64Mbit x 8 front-side / 64Mbit x 8 back-side If you are ever unsure about a specific memory module being compatible with a specific motherboard, you should always contact one or both manufacturers for clarification.
# 4 DDR II DIMM memory slots (supports up to 4GB memory) # Supports 1.8V DDR II DIMM # Supports dual channel DDR II 667/533 DIMM # DDR2 PC5300/PC4200 # 512MB or 1GB Modules # Install like memory in each channel for Dual Channel operation # If only 2 DIMMS installed, place in same channel (slot color) for Dual Channel, if installed in adjacent slots, memory will run in single mode.
1GB is greater than 1632KB.
Yes. 1GB = 1,000MB
2 dimm 2gb RAM comes with 2 1gb modules. 4 dimm 2gb RAM comes with 4 512mb modules.
1GB is bigger than 1MB
4.23GB is greater than 1GB. By a factor of 4.23.
That would be impossible for a 2GB flash drive to hold less than a 1GB XD Card, seeing as to the fact that 2GBs are larger than 1GB.