16 million TB

Memory in 32 and 64-Bit Architectures

In terms of Random Access Memory, 32-bit architectures can address 4GB of memory, maximum. A 64-bit architecture, in turn, has a theoretical limit of addressing 16 million TB of memory.A 64-bit system can access 264 different memory addresses, i.e actually 18-Quintillion bytes of RAM. In short, any amount of memory greater than 4 GB can be easily handled by it.Theoretically, 2 GB RAM is the minimum specification required to install 64-bit Windows 10 on your computer system effectively.

What is the RAM limit for 32-bit : 4GB RAM

What are the RAM limits of a 32-bit operating system All 32-bit operating systems have a 4GB RAM limit.

Can 64-bit run 32gb RAM

The OS support doesn't change about supported RAM size. Your laptop can have up to 32 GB (2 block of 16 GB) RAM. If you have Windows 10 64 bit, all the RAM has to be read.

Is there a limit on RAM : The maximum random access memory (RAM) installed in any computer system is limited by hardware, software and economic factors. The hardware may have a limited number of address bus bits, limited by the processor package or design of the system.

By definition, a 32-bit processor uses 32 bits to refer to the location of each byte of memory. 2^32 = 4.2 billion, which means a memory address that's 32 bits long can only refer to 4.2 billion unique locations (i.e. 4 GB). In the 32-bit Windows world, each application has its own “virtual” 4GB memory space.

The official requirements page state that you need at least 2 gigs of RAM to run the 64-bit version.

Is 64bit faster than 32-bit

64-bit is mostly faster than 32-bit (sometimes considerably so). Some benchmarks here and here. There are some exceptions, but they tend to be rare. But code size and data size (if it includes pointers, or types that vary with 32-bit/64-bit) may be larger and that can affect caches.32-bit operating systems cannot address more than 4GB of RAM unless they have a feature like “Physical Address Extension” in Windows that allows the system to address a larger amount of RAM. A 32-bit OS without such a kludge will support 4GB at a maximum.64gb is 2x overkill. Yes, I would not go higher then 32 GB to be on the safe side with future releases, just very little point in 64 GB for gaming currently. So if that system is going to last you a while may as well go for 32 if able. 16gb is plenty.

The OS support doesn't change about supported RAM size. Your laptop can have up to 32 GB (2 block of 16 GB) RAM. If you have Windows 10 64 bit, all the RAM has to be read.

Can you use 100% of your RAM : In some cases RAM usage can go all the way to 100%. Especially, when gaming, or rendering a video. Your computer should NOT be at 100% when idle.

Do I need 32 or 64 for 4GB RAM : However, both the 32 bit and 64 bit versions will run on 4GB of RAM. Most will strongly urge that 8GB is a much better way to go IF you want the 64bit version. For many programs the 32 bit version is fine. 4 GB and below it's the same.

Is 64gb RAM pointless

WIth DDR5, nah 16GB is still the minimum for gaming. 32 or 48 if you really want to go balling. 64 gives zero benifites even with heavy moded games, you can just go with 48.

64gb is 2x overkill. Yes, I would not go higher then 32 GB to be on the safe side with future releases, just very little point in 64 GB for gaming currently. So if that system is going to last you a while may as well go for 32 if able. 16gb is plenty.In fact, some 64-bit applications are slower because data structures tend to be larger in 64-bit applications (again, due to the larger pointers) and moving them around can slow things down.

Is 64-bit good for gaming : A 64-bit system can have a positive impact on gaming, especially for modern and resource-intensive games. With a 64-bit operating system, games can access and utilize more memory, allowing for smoother gameplay and reducing the likelihood of performance issues caused by insufficient random-access memory (RAM).