Photoshop CS6 and CC only install a 64-bit version on Mac OS.
Photoshop CS5 installs a version that can launch in either 32 bit or 64 bit when you install on a 64-bit version of Mac OS (Mac OS X 10.5 or later). If you are using Mac OS X 10.4 or earlier, then Photoshop only installs the 32-bit version.
Photoshop CS4 installs a 32-bit version only.
Photoshop CS5 installs a version that can launch in either 32 bit or 64 bit when you install on a 64-bit version of Mac OS (Mac OS X 10.5 or later). If you are using Mac OS X 10.4 or earlier, then Photoshop only installs the 32-bit version.
Photoshop CS4 installs a 32-bit version only.
Photoshop CS5
on Mac OS installs one copy of the application, and it launches by
default in 64-bit mode. You can run Photoshop CS5 in 32-bit mode.
To run Photoshop CS5 in 32-bit mode:
To run Photoshop CS5 in 32-bit mode:
- Quit Photoshop CS5.
- Navigate to Applications/Adobe Photoshop CS5 folder.
- Select the Adobe Photoshop CS5.app file.
- Choose File > Get Info.
- Select Open in 32 Bit Mode.
- Close the Get Info dialog box.
- Reopen Photoshop CS5.
Third-party
plug-ins for 32-bit versions of Photoshop don't appear under the Filter
menu when you run the 64-bit version of Photoshop. If it's necessary to
use plug-ins that haven't been updated, run the 32-bit version of
Photoshop. When you are done using the plug-ins, close the 32-bit
version. Then, run the 64-bit version. Contact the plug-in manufacturer
for information about any updates.
Although the
64-bit version of Photoshop speeds up some operations, it doesn't speed
all of them. And, it doesn't speed the operation equally. Generally,
operations run approximately 8-12% faster. Overall, processor speed is
not the main advantage of using the 64-bit version, except when you run
actions on large files. Photoshop writes data to the hard disk
incrementally while you pause in Photoshop. When you run actions, there
are no pauses for Photoshop to write to the disk. Therefore, Photoshop
writes to the disk while the action runs. The increase in processor
speed increases these processes.
The primary
advantage of using the 64-bit version of Photoshop CS5 is to access
amounts of RAM beyond what Photoshop can access as a 32-bit application.
Photoshop can take the best advantage of more than 4 GB of RAM only it
runs as a 64-bit application. If you use files that need more than 4 GB
of RAM, and you have enough RAM, all processing you perform on large
images can be done in RAM. It's not necessary for Photoshop to swap out
to the hard disk. Unlike on Windows, all supported versions of Mac OS
can run Photoshop CS5 in 64-bit mode. When running in 64-bit mode,
Photoshop CS5 uses all the RAM you can fit into your computer.
Photoshop CS5
and CS4 install a 32-bit and a 64-bit version when you install on a
64-bit version of Windows 7, Vista, and XP. If you are using the 32-bit
version of Windows, then Photoshop only installs the 32-bit version.
Photoshop CS6 allows you to choose one or both of these versions to
install. Photoshop CC installs both versions.
If you are running Windows Vista, upgrade to Service Pack 1 for better performance.
Note: Photoshop CS6 supports Windows 8, 7, and XP. Photoshop CC supports Windows 8 and 7.
Note: 64-bit Photoshop CS4 was not thoroughly tested under Windows XP64. Although it is not supported, it should run.
If you are running Windows Vista, upgrade to Service Pack 1 for better performance.
Note: Photoshop CS6 supports Windows 8, 7, and XP. Photoshop CC supports Windows 8 and 7.
Note: 64-bit Photoshop CS4 was not thoroughly tested under Windows XP64. Although it is not supported, it should run.
Photoshop
installs a 32-bit and a 64-bit shortcut into the Start Menu. If it's
necessary to manually run the application, the 32-bit version is the
photoshop.exe file. It's in the Program Files (x86)/Adobe/Adobe
Photoshop CS4 folder. The 64-bit version is the photoshop.exe file in
the Program Files/Adobe/Adobe Photoshop CS4 folder.
Third-party
plug-ins for 32-bit versions of Photoshop don't appear under the Filter
menu when you run the 64-bit version of Photoshop. If it's necessary to
use plug-ins that haven't been updated, run the 32-bit version of
Photoshop. When you are done using the plug-ins, close the 32-bit
version. Then, run the 64-bit version. Contact the plug-in manufacturer
for information about any updates.
Although the
64-bit version of Photoshop speeds up some operations, it doesn't speed
all of them. And, it doesn't speed the operation equally. Generally,
operations run approximately 8-12% faster. Overall, processor speed is
not the main advantage of using the 64-bit version.
The primary
advantage of using the 64-bit version is to access amounts of RAM beyond
what Photoshop can access when the 32-bit version is run. You can take
advantage of more than 4 GB of RAM only when you are on 64-bit systems,
using 64-bit Photoshop. If you use files that require more than 4 GB of
RAM, and you have enough RAM, all the processing you perform on your
large images can be done in RAM. It's not necessary for Photoshop to
swap out to the hard disk.
This table lists the amount of RAM available to Photoshop with the different versions of Windows:
This table lists the amount of RAM available to Photoshop with the different versions of Windows:
| Photoshop version | Windows version | Maximum amount of RAM Photoshop can use |
| 32 bit | 32 bit | 1.7 GB |
| 32 bit | 64 bit | 3.2 GB |
| 64 bit | 64 bit | as much RAM as you can fit into your computer |
Keywords:
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Fonte: Adobe
https://helpx.adobe.com/photoshop/kb/64-bit-os-benefits-limitations.html
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06-01-2011, 08:54 AM
#3
Membro Pleno
- Data de Ingresso
- Apr 2009
- Localização
- Nova Friburgo, Rio de Janeiro
- Posts
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Re: PS5 32 e 64 bits: muita diferença?
barroca, os aplicativos em 64bits tiram o maximo proveito da plataforma que voce está usando, se voce processa muitas imagens e com tamanho de arquivo elevado, certamente a performance será perceptivelmente melhor.
quanto as particularidades do PS certamente o Galvão poderá esclarecer melhor.
apenas uma ressalva: processamento simultaneo nao esta ligado ao tamanho da palavra da plataforma, independe de ser 32 ou 64. :wink:
http://riofotografico.com.br/f25/ps5-32-e-64-bits-muita-diferenca-10338/
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http://www.photopro.com.br/novidades-photoshop/32-ou-64-bits
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