问题描述
德尔福64位以自己的方式大家都知道（每Delphi程序员至少）。除了什么codegear说，有关的64位应用程序，德尔福的收益（和codegear没有说太多有关），我将受益于一个64位的Delphi应用程序？这实在是一个好主意，口我的应用程序到64位，只要codegear版本呢？
Delphi 64 bits is on its way as everybody knows (every delphi programmer at least) . Apart from what codegear says about the benefits of a 64 bits Delphi app (and codegear does not say much about), what will I benefit from having a 64 bits Delphi application? It is really a good idea to port my app to 64 bits as soon as codegear releases it?
编辑：
我只是问，因为我想我可以拥有所有的意见。现在，我可以说，我真的需要更多的内存来我的应用程序，因为它消耗了大量的资源。我真的可以用更快的速度，如果是可能的。我不需要外壳扩展没有插件。
I am just asking it because I want all opinions I can have. For now, I can say that I really need more memory available to my application because it consumes a lot of resources. I really could use more speed, if it is possible. I do not need shell extensions neither plugins.
我的客户也问我关于我的应用程序的x64版本的，但我真的不明白为什么他们所要求的，因为他们其实谁不知道什么是64位应用程序的律师。
My customers are also asking me about a x64 version of my app, but I really do not understand why they are asking for it, because they are actually lawyers who have no idea what is a 64 bits application.
修改
我其实并不直接参与到应用程序的开发。我是一个技术团队的一部分，我创建的东西，其他的开发商在我使用的工作，真正将公司发展的最终应用程序。所以，我的工作是做技术的东西，和端口的应用程序到x64是什么样的我做的事情，但我需要解释为什么我这样做，我的上司。
I actually do not participate directly into the app development. I am part of a technology team and I create stuff that other developers in the company I work for use to really develop the final app. So, my job is to do technical stuff, and port a app to x64 is the kind of thing I do, but I need to explain why I am doing that to my superiors.
推荐答案
一个64位程序拥有的同一个编译为32位（x86）以下优点：
A 64-bit program has the following advantages over the same one compiled for 32-bit (x86):
更多的寄存器。 64位x86芯片具有几个寄存器这样就可以在理论上（如果编译器利用），导致更快的code。在某些情况下。
More registers. 64-bit x86 chips have several more registers and this can, in theory (if the compiler takes advantage) result in faster code in some cases.
更多的内存。随着32位的程序，你通常被限制为2GB的地址空间或全部4GB的地址空间，如果你用编译/ LARGEADDRESSAWARE ，这是3.5GB左右在实践中，由于Windows的内核/用户空间的分割。 64位进程可以解决更多。如果你的应用程序需要大量的内存，这是唯一重要的。
More memory. With a 32-bit program you were generally limited to either a 2GB address space or a 4GB address space in total, if you compiled with /LARGEADDRESSAWARE, which was about 3.5GB in practice due to Windows' kernel/userspace split. A 64-bit process can address much more. This is only important if your app needs a lot of memory.
能力建设的插件64位程序，像资源管理器。除非你使用COM一个插件，其中数据编组，你不能混用32位和64位code在Windows中的一个进程，比如一个64位的EXE加载32位DLL。如果你想写一个浏览器插件，例如，你不能把它与64位版本的浏览器与旧版本的Delphi的工作。您将能够与64位版本。
Ability to build plugins for 64-bit programs, like Explorer. Unless you're using COM for a plugin, where data is marshalled, you can't mix 32-bit and 64-bit code in the one process in Windows, such as a 64-bit EXE loading a 32-bit DLL. If you wanted to write an Explorer plugin, for example, you couldn't have it work with the 64-bit version of Explorer with old versions of Delphi. You will be able to with the 64-bit version.
德尔福专用：编译器将使用SSE / SSE2指令 作为浮点计算，在目前的32位编译器仅使用的x87 FPU指令（我认为）这应该给一个速度的提升浮点运算。你可能甚至不会注意到，除非你的应用程序是非常FP-依赖（一场比赛，也许，或数据处理应用程序，那种事。）
Delphi-specific: the compiler will use SSE/SSE2 instructions for floating point calculations, where the current 32-bit compiler only uses x87 FPU instructions (I think.) This should give a speed increase for floating-point math. You probably won't even notice unless your app is highly FP-dependent (a game, perhaps, or a data processing application, that kind of thing.)
回答你的问题：我将受益于一个64位的Delphi应用程序？是高度依赖于特定的应用。一般来说，是不可能被超越，可能是一个小的速度增加多少好处。不要依赖64位，虽然加速慢的应用程序：你仍然需要为大的速度提升算法的变化。 64位是不是灵丹妙药。除此之外，你只需要改变，如果你已经遇到了由32位所施加的限制之一 - 我怀疑你有没有，或者你就不会问这个问题。
The answer to your question "will I benefit from having a 64 bits Delphi application?" is highly dependent on your specific application. In general, there is unlikely to be much benefit beyond, possibly, a small speed increase. Don't rely on 64-bit to speed up a slow application though: you will still need to make algorithmic changes for large speed boosts. 64-bit isn't a magic bullet. Other than that, you only need to change if you've already encountered one of the limits imposed by 32-bit - I suspect you haven't, or you wouldn't be asking the question.
如果您决定转换，你可能会发现this螺纹非常有用的。
If you decide to convert, you may find this thread very useful.
但一件事：即使你不需要改变，你可能需要，特别是如果你的应用程序是一个个人项目。你可能会学到的东西，你的code将以更高的品质，当你解决六十四分之三十二位的问题，这样的项目可以很有趣。你是一个程序员，毕竟：）
But one other thing: even if you don't need to change, you might want to, especially if your app is a personal project. You might learn stuff, your code will be higher quality when you fix 32/64-bit issues, and a project like that can be fun. You're a programmer, after all :)
编辑：我看到你更新你的问题用的我可以说，我真的需要更多的内存来我的应用程序，因为它消耗了大量的资源，我真的可以使用更多。速度，如果是可能的。的
I see you have updated your question with "I can say that I really need more memory available to my application because it consumes a lot of resources. I really could use more speed, if it is possible."
哪些资源？记忆？ 64位会给你一个更大的寻址地址空间，仅此而已。它不会给你更多的GDI处理等，如果这些算不算资源。但是，如果你真的这样做需要更多的内存，那么64位的价值将转换为。
What resources? Memory? 64-bit will give you a greater addressable address space, that's it. It won't give you more GDI handles, etc, if those count as resources. However, if you truly do need more memory, then 64-bit will be worth converting to.
更快的速度，如果你想的大的区别，更可能通过不是通过一个64位编译器算法或线程的变化来实现。
"More speed", if you want a big difference, is more likely to be achieved through algorithmic or threading changes than through a 64-bit compiler.
我的客户也问我关于我的应用程序的64位版本，但我真的不明白，为什么他们所要求的，因为他们实际上是谁拥有律师不知道什么是64位应用程序。的机会，他们听说过，64位更好或更快。在一个理想的世界中，客户将有基于现实的需求，但是这并非总是如此。务实来讲，如果客户希望这样的事情，它可能是值得转换只是因为它使他们感到快乐：快乐的客户是好的，他们可以支付你的新版本，它可以帮助口碑贵公司的声誉。
"My customers are also asking me about a x64 version of my app, but I really do not understand why they are asking for it, because they are actually lawyers who have no idea what is a 64 bits application." Chances are they've heard that 64-bit is better or faster. In an ideal world, customers would have reality-based requirements, but this isn't always the case. Pragmatically speaking if the customer wants something like this, it may be worth converting simply because it makes them happy: happy customers are good, and they may pay you for the new version, and it may help your company's word-of-mouth reputation.