Even bit outfits such as Nik Software and onOne haven't yet. It won't even show up grayed out on the Filter menu – it's as if you never even installed that plug-in.Ī few companies are coming out with 64-bit versions but many have not so far. You don't get an error message or anything, it's just that even if the installer for that plug-in lets you install it into the 64-bit Photoshop folder, Photoshop itself will simply ignore it. As of this writing, very, very few third-party filters are compatible with 64-bit Photoshop. My largest image files generally top out at three quarters of a gigabyte but if I open a few of them at the same time the 32-bit version does begin to bog down while the 64-bit version does not.īut running 64-bit Photoshop all the time does have a significant disadvantage in another area when compared with 32-bit. For extremely large files though, the difference is noticeable. Adobe estimates that the average performance improvement is in the range of eight to twelve percent but I honestly can say I've even seen that.

Unless you have a combined total of around a gigabyte of images open at the same time, you will be unlikely to see any benefit from 64-bit addressing. But even with losing a good chunk of those four gigabytes to Windows itself and you video card you still have a good 2 GB to run Photoshop in.

Indeed, the 32-bit and 64-bit versions are virtual twins of each other so you may be wondering what the point is.įor memory intensive applications such as Photoshop, 64-bit applications should be faster than 32-bit since the extra bit width gets you past the 4 GB addressing limit of 32-bit. Splash screen while loading looks the same too as does the Help > About Photoshop screen. They end up right next to each other on the Start menu as ' Adobe Photoshop CS4' and ' Adobe Photoshop CS4 (64 Bit).' When it comes to starting Photoshop, the icon is the same for both versions so if you're not paying attention you likely won't be able to tell which you are running. A single install gives you both 32-bit and 64-bit versions of CS4. If you're curious what I think of 64-bit Photoshop, read on. I recently upgraded to a Quad core 3.0 GHz Q9650 system with 8 GB RAM running 64-bit Windows Vista. Adobe Photoshop CS4 for Windows comes as both a traditional 32-bit application and a 64-bit version for systems with the processor and operating system to run 64-bits.

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