64 bit VS 32bit

elan7e

可否用簡单的語言(不要太專業,太高深),解釋一下Vista 64 bit 和 32 bit的分別,那一個比較好?
曾經到過一些英文網站，可能用詞太專門,看不明白。
謝謝ｏ

Hyde

if u don't use more then 4GB of ram then get 32bit

chobit

potentially 64bit can allow some speed improvements.  However, 64Bit is still too new, and many hardware software still can't take full advantage.  In fact you may run into lots of incompatibility problems....!  So, unless you are running some professional software which can take advantage of 64bit and needed more than 4GB, etc..!

IMHO, stay with 32bit.

ah_fu

The most important part is whether you will have drivers for your hardware. Otherwise, you'll be stuck with things that don't work.

elan7e

首先多謝各位,如果用32bit,假如(只是假如)expand the ram to 4 GB or more,有無用？有無意思？因為在Staples問過一位sales personel,他說如果用32 bit, it is meaningless to expand the total ram more than 3 GB.他說了些原因,可能我的水平太低,不明白ｏ可否解釋一下？
多謝。

pigheadbone

If you're using 32-bit, then you can't use more than 4GB RAM.  Even if you you buy 10GB RAM, you would still be using the first 4 only.

ACC-HE

go for 64 bit, at this day and age.

tsawwassen

Hi, I have a question needs help. If My computer's mother board only support 2 gb ram, and can I put in 4 gb ram  then what will happen? Could it run with 4 gb or it will just operate with 2 gb and the excess 2 gb will be useless? Please help. I just ordered another 4 gb ram from NCIX and find out my mother board only suppert 2 gb. How dump I am.

beaver

Vista 32位版本在我们的PC机上能支持多大的内存呢？

答案是3,120 MB，也就是3.05G！

原因很简单，因为考虑到PCI设备（例如显卡，声卡，网卡等等）占用的寻址范围，Vista32保留了接近1G的内存地址空间来保证这些设备的兼容性（虽然你的机器可能很多地址未被使用），也就是说，无论你看到系统属性里是3G还是3.5G，实际可以使用的内存都是3G ! 而且微软给家庭用户给出的建议是要使用4G或以上的内存，必须使用Windows2003或者XP和Vista的64位版本。（MSDN原文见 http://support.microsoft.com/?kbid&id=929605）

另外需要注意一点的是，安装3G 内存后不表示就可以使用这厶多，因为32位windows默认应用程序只能使用2G内存，剩下的都保留给系统内核了，因此还需要添加启动参数 ∶"bcdedit /set increaseuserva 3072" 来使得windows把2G以上的内存也分配给应用程序！


OK,说了这厶多，大家应该很清楚了，不要因为内存便宜或钱多就上4G，因为总会浪费1G的（当然要不在乎这点钱我也没办法），像我就加了1G，一共3G，一点也不浪费多好啊 呵呵 （唯一缺点是3G的DDR2无法实现双通道）

欢迎转载，但请著名本文请作者syinter，请珍惜本人的辛苦劳动~谢谢

pkphilip

How much beyond 3GB RAM the system could recognize in a 32bit OS is determine by the motherboard. Newer chipset is able to to auto disable Executing Bits and enable PAE (Physical Address Extension) to allow the OS to recognize more than the physical limit.

If you have 4GB+ or more memory, 64bit OS is definitely a must, otherwise anything over 3.5GB will be useless. Most new package system comes with Vista 64 already due to 4GB of RAM.

So far, Vista 64 has been good, only that some major applications such as Simply Accounting 2008 still refuse to work with it.

Philip