Mathematical Limitations of 32 bit systems

[lizardmannnn]

Very interesting thanks.

[ryancouture]

so we understand how it relates to RAM (you can utilize more) but is there any performance gain?

[gr1moire2112]

@ryancouture Possibly more RAM can increase performance, if not having to page to virtual memory or swap memory on a hard disk. Beyond a certain point however it would become limited. More RAM means larger calculations can be made and more multitasking etc becomes possible. Check out some of MtBit10 videos...

[gr1moire2112]

@ryancouture Possibly more RAM can increase performance, if not having to page to virtual memory or swap memory on a hard disk. Beyond a certain point however it would become limited. More RAM means larger calculations can be made and more multitasking etc becomes possible. Check out some of MtBit10 videos...

[nazskyne]

Thank you, Sir. hmm. So that's why audience choosed a 64bits, is better than 32bits of Windows bcuz there has a little bit more space of memories from Windows plus upgrading 4gibs of ram, 1-Terabyte of hard disk drive and added higher graphics card performance together supports at once Pcs or (Mac?! 1-terabyte im not sure about that XD). So that's how gamers roll, tho.. That's Owesome

[gr1moire2112]

@Vlad2641 Thanks for the feedback, appreciated.

[gr1moire2112]

@pzmtuthcvpvl Did the comment help ?

[gr1moire2112]

@pzmtuthcvpvl The ascii for space is 32. Was that your question ?

[BronzeProductions]

Wow, only 868 views. This video needs to go viral. Years of computer use and training and I JUST NOW UNDERSTAND. Thank you Thank you. Subscribed 5/5

[gr1moire2112]

@BronzeProductions Thanks for your feedback, good to hear.

[playa1313]

Great job with this video, very well explained! :)

[gr1moire2112]

Thanks for the feedback...

[mrbit10]

thanks for the vid :)

[gr1moire2112]

no problem

[LightMagenta]

Just a small correction 2 ^ 32 = 4 Gigabits (not Gigabytes)

[SuperiorBeen]

Nope you're wrong:

2^30 = 1 Gigabyte

4 *(2^30) = 2^(30+2) = 2^32 = 4 Gigabytes

4 Gigabits = 4.000.000.000 bits = 2^2 * 10^9 bits (not a power of 2)

[gr1moire2112]

LightMagenta, please see also the explanation of SuperiorBeen.

[LightMagenta]

i am not wrong its just that 2^30 does not make a gigabyte

Anyway let me be more verbose

2^32 = 4294967296(bits)

4294967296(bits) / 8 = 536870912(bytes)

536870912(bytes) / 1024 = 524288(kilobytes)

524288(kilobytes) / 1024 = 512(magabytes)

512(magabytes) / 1024 = 0.5(gigabytes)

0.5(gigabytes) * 8 = 4(gigabits)

as you can see am am right

[LightMagenta]

ok i have found where you got 2^30 = 1GB but that number is only hoe much bytes ar in a gigabyte and not how many bits and thats why your calculations are 8 times higher than they should be.

[gr1moire2112]

Hey I agree with you on that.

1073741824(bytes) != 1073741824(bits)

Perhaps I should have been a little more verbose also. 2^30 = 1 GB is what I said. Perhaps after the slide on how many bits in a byte I should have said that now we are calculating bytes. 32 bits of a CPU is needed to map each byte of memory thus giving the 4GB limit.

Thanks for bringing this up and taking an interest in the video. I will add something in the comments.

[big46uk]

if you use all 64bit addressable amount of memory the bus from the memory to the memory controller would one massive wide bus especially if you use unbuffered RAM.

[gr1moire2112]

true, mainly mathematical theory rather than what is practical...