64bit当然就是性能提升，速度更快。windows的64bit步伐相对迟缓。
mac osx方面，07年发布的Leopard就已经支持64位程序和驱动（内核不完全是64bit，但是众所周知leopard支持4G内存）；
9月上市的snow leopard全部内核和自带的官方软件（safari，quicktime，mail之类）全部是原生的64bit程序，彻底64位化，并向下兼容32位。
所以说osx是全球最先进的操作系统，技术上和体验上都是有足够根据的。。。很多人对这一点的认知不够。。。



[ 本帖最后由 RestlessDream 于 2009-8-8 15:55 编辑 ]

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原帖由 shangchi 于 2009-8-8 16:00 发表
4GB以下装x86
4GB装x86或x64随意
4GB以上装x64

XP就不要装x64的了

不仅仅是内存，64位驱动折腾死你。。。想上64的做好折腾软件的思想准备。32位win7已经很健壮了。

转个老外的体验

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I got a sweet (almost porn) deal on a fantastic laptop 3 weeks ago that came with Vista Home Premium 32. Its an C2D P8400 2,4ghz 1066 fsb 4GB dual ddr3, NVidia 9600m GT GDDR3 !!! Check my signiture and compare with my hacky.

Went out a bought a seagate 7,200 rpm with 16mb cache SATA to keep the warranty install and try out Win7 since its rc1. Anyways, had Vista 2 weeks, 1 week Win7_32rc1 and 1 week Win7_64rc1.

I felt I had to start learning how to meander through the new OS, although all the functions are the same, some new, everything is reorganized and I find it really hard to go some places twice. Performance SUCKS... GUI wise. and please do NOT say its because or it being RC. It is not a smooth OS. Basic install is again a PAIN and 20 million thing I do not need are up and running. Feels half the machine. General usage is still MILES smoother in my hacky.

Had a chance to try some heavy duty stuff. On a side note, GTAIV runs at a smooth 30fps almost all high, so the machine IS rockin'. I benchmarked everything to check for consistancy, only had to update my BIOS to take full clockage of my memories. Even still;

Win 32 vs 64 .... there is a huge difference. 32 really feels like a sturdy XP so far, although I find 7 to be annoying as hell because you finish setting up everything about a weeks later (from backgrounds to user control settings, etc).

Win 64 is crap!!!!!!!!!!!! bugs, firefox hangs on wake, drivers ... uuuuuuug !!

Withing 1 week of heavy Win7 32 bit testing, installing everything in sight, I really felt the "growing wondows belly" syndrome, and you feel the OS having to weight-push itself around.

It feels like I hacked a PPC to run a virtualized crippled Windows hahahaha

Leopard is way better than Win7, so Snow Leo will shame Windows 7, I know this already first hand how obvious this is. Try it yourself, its a free legal download lol.

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原帖由 henvelleng 于 2009-8-8 16:59 发表
osx是全球最先进的操作系统？惊了！

难道是windows么？

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原帖由 冰镇石油 于 2009-8-8 22:23 发表
我觉得在Unix（包括AIX、HPUX和Solaris）面前任何操作系统都是渣

知音啊！osx就是基于unix的。

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原帖由 冰镇石油 于 2009-8-8 22:48 发表
纯技术不谈，在银行领域联机交易主要采用的是IBM的Mainframe，系统ZOS、数据库DB2，分析型应用后台主要是小型机+Unix，
只有在服务端才是Windows和Linux，可以说不同的系统根据各自特点扮演着不同的角色而已，不存 ...

你们也认真了。喷的就是微软~~