FRV with raw files is at least as fast as using Faststone with embedded previews, if not faster.īut: at least 3 "RAW decode threads" are needed for maximum performance and more than 3 threads don't seem to improve performance any further. FRV has no match when it comes to displaying raw files when enough CPU cores/threads are available. NVidia GTX 780 GHz Edition, using default DX9 mode. XnView was slowest overall and IrfanView is mostly matched or outmatched by Faststone, so I leave these two out from here on.ĬPU is an AMD 1800X running all cores at 3.95 Ghz + 3333-C14 RAM (tight subtimings).
I tested this version using NEF, ORF, RW2 and JPG files versus Faststone, Irfanview and XnView (Classic). LIcense key (valid till the end of July) If you are still using a release version, you will find the first batch of changes to Preferences and explanations in "Preview I" here: 14.3 fps for "repeat forward browsing" (the raw files from the test set are already decoded and put to cache)įor default video mode (Upsample: Bilinear Downsample: Low res previews)
8.8 fps during sequential forward browsing (limits the unpacking speed) i7-7700K CPU at factory frequencies (no over-clocking)įor fastest video mode (Upsample: No Resample Downsampling: None).This second preview is addressing this, but also improves GUI speed somewhat. We knew it, unpacking JPEGs and displaying them is slow.Īfter the speed improvements we've made to displaying raw processing JPEGs became disproportionally slow, taking about half of the time (except for cameras that embed low resolution previews, like Sony).
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