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1. Installing photoshop 64 bit mac os x#
2. Installing photoshop 64 bit mac os#
3. Installing photoshop 64 bit software#
4. Installing photoshop 64 bit Pc#

The Performance pane suggests an ideal range of RAM for you to let Photoshop use.

Installing photoshop 64 bit mac os#

In Mac OS X, use the Performance pane in the Preferences dialog box to set an upper limit on how much RAM Photoshop uses ( see Figure 2). Out of desperation, the system will start using virtual memory on disk. However, you don't want Photoshop to use all the RAM on your system-that starves the operating system of the RAM it needs to run the machine, causing everything to slow down. Photoshop takes a certain amount of RAM when you start it, and if it needs more, the system hands it over.

Installing photoshop 64 bit mac os x#

(If you've already maxed out your machine with as much RAM as Photoshop can address, and your efficiency is still below 100%, see the later section "Scratch Disk Space" for help.) If the Efficiency display always says 100%, you won't get any benefit from adding more RAM, but if you want to allocate 100% of the available RAM to Photoshop, it's best to install more than 5GB of RAM.īoth Mac OS X and Windows XP automatically adjust the amount of RAM each application gets. If the Efficiency reading drops below 100%, more RAM would help. To turn on the Efficiency indicator, click the third option from the left (the black triangle) in the status bar at the bottom of a document window and choose Show > Efficiency ( see Figure 1). You have to be working with files large enough to make good use of all that RAM-if you're editing 300 × 200-pixel web images with no layers, adding another 4GB of RAM won't make Photoshop run any faster.Ī reliable way to determine whether you'll benefit from more RAM is to keep an eye on the Efficiency indicator while you work. As you add RAM to your computer, you should see corresponding improvements in performance up to about 8GB, which is the point of diminishing returns. But if you have enough RAM to hold most or all of your scratch data, it becomes faster to let Windows or Mac OS X use extra RAM above 4GB as a cache for scratch data. Photoshop normally doesn't use those buffers because doing so can be slower than using a scratch file on disk the way operating systems use virtual memory is not optimal for the way Photoshop needs to use virtual memory. (We talked about 64-bit operating systems in the earlier section "64-Bit Processing.") When more than 4GB of RAM is installed, Photoshop lets the operating system buffer scratch data into RAM instead of writing it directly to disk. If you're working on huge images, you may see benefits from even more RAM. When running on 64-bit hardware with a 32-bit operating system, in theory Photoshop CS4 can use up to 3.5GB of RAM directly (in practice, it uses 3072MB directly).

Installing photoshop 64 bit Pc#

For this reason, you can use the Performance pane in the Preferences dialog box to set an upper limit on how much RAM Photoshop is allowed to use (see the later section "RAM Allocation").Ħ4-bit Windows Vista won't see more than 4GB of RAM unless your PC motherboard's chipset supports the 圆4 instruction set and at least 8GB of RAM, and your BIOS must also support a feature called memory remapping. Otherwise, you won't have any RAM left for the system, causing it to use the virtual memory on disk, which is much slower. However, if you have 2GB of RAM installed, you won't want Photoshop to use all of it. Photoshop can use as much as 2GB of RAM when running on a 32-bit system. Generally, the more megapixels, layers, Smart Objects, and Smart Filters you use, the more RAM you'll need. But unless you work only on small, flat files, at some point Photoshop will call on its scratch disk. The key idea is that Photoshop uses RAM as a cache for its scratch disk: If what it needs at any given moment is in its RAM cache, it can fetch it quicker. We used to have various rules about how much RAM is enough, but as Photoshop has added more features that use scratch-disk space, the old rules have largely gone out the window. I = r i = i || function () ,lpTag.init()): setting up a RAM disk as a scratch disk make Photoshop run faster? There's no reason to do that, because Photoshop can work with your operating system automatically to treat the available RAM above 4GB as a RAM disk for scratch data.

Installing photoshop 64 bit software#

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