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 applications optimized for a 32-bit system won't gain any advantage from running on 64-bit hardware. To the contrary, penalties from emulation and compatibility issues described above may apply. However, non-optimized applications may gain some performance from running on 64-bit machines.Pointers are twice as large in 64 bit, causing more L2 cache misses, making the software slower.

Is 64-bit or 32-bit better for Windows : Reasons to choose the 64-bit version

Computers running 64-bit versions of Windows generally have more resources such as processing power and memory, than their 32-bit predecessors. Also, 64-bit applications can access more memory than 32-bit applications (up to 18.4 million Petabytes).

Is 64-bit Windows faster

There are modern Windows versions with 64-bit operating systems which are significantly faster and more popular compared to 32-bit systems. However, 32-bit is still useful when it comes to installing programs.

Is 64-bit more efficient : It is commonly believed that native 64-bit applications are faster than 32-bit applications, but that's not always the case. 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.

Most importantly, 32-bit systems are slow in computing calculations due to the amount of memory available. Due to this, they render graphics slower and at a much lower quality as compared to their 64-bit counterparts.

It is commonly believed that native 64-bit applications are faster than 32-bit applications, but that's not always the case. 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 slower than 32-bit

In conclusion, 32-bit operating systems are less utilized nowadays as compared to 64-bit operating systems. However, 64-bit is preferred because it is faster, has more memory, and can present graphics better than 32-bit.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.The main disadvantage of 64-bit architectures is that, relative to 32-bit architectures, the same data occupies more space in memory (due to longer pointers and possibly other types, and alignment padding).

Thus, there are currently no mainstream general-purpose processors built to operate on 128-bit integers or addresses, although a number of processors do have specialized ways to operate on 128-bit chunks of data, and are given in § History.

Is 128 bit possible : Thus, there are currently no mainstream general-purpose processors built to operate on 128-bit integers or addresses, although a number of processors do have specialized ways to operate on 128-bit chunks of data, and are given in § History.

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 128-bit faster than 64-bit

Between 128 bit and 64 bit versions of same graphics card, 128 bit would have better performance in games. Since GPU cache can not hold all the game content, eventually some data will be streamed from video memory to GPU. There, 128 bit will have advantage over 64 bit.

A 128-bit processor may never occur because there is no practical reason for doubling the basic register size. One of the reasons for migrating from 32-bit to 64-bit computers was memory (RAM) addressing; however, for all practical purposes, there was only a need for a few more bits beyond 32 (see binary values).After more than 30 years, Intel has announced that it will be phasing out its 32-bit CPUs. The company made the announcement on January 25, 2023, and said that the transition to 64-bit CPUs will be complete by the end of 2025.

Does 16-bit exist : In computer architecture, 16-bit integers, memory addresses, or other data units are those that are 16 bits (2 octets) wide. Also, 16-bit central processing unit (CPU) and arithmetic logic unit (ALU) architectures are those that are based on registers, address buses, or data buses of that size.