Another new feature substantially improving both workflow and raw performance is Live Filters, which effectively brings the dynamic editing features of Layer Styles to Filters. The pixel radius of a Gaussian Blur, for example, can be adjusted long after it has been applied with just a single mouse click. Sources report substantial performance improvements to the filters themselves, as well, and have speculated that Photoshop may now be tapping the GPU of the video card to help the CPU crunch filters.
There are lots of other features (e.g. – native code for Intel Macs), but the making filters undoable will be very useful.
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