Bruce n Philly Offline Upload & Sell: Off
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Two different GPUs on my Windows 7 64 machine, Intel Core i7-3930K, SDD, and NEC PA301W 30" 2560x1600.
I installed LR 6 with a EVGA GTX 650 Ti and installed an EVGA GTX 970 SC this morning. Even with this very high-performance 970 (about $350), I have redraw lag and some lag in the sliders. With the 970, sliding my clarity slider hard left or right results in a two-stage render. However it is very fast anyway.
I found a redraw bug where if I am flipping between two pics in Develop using the arrow keys, sometimes one image will not render/redraw and stays blurry. I have to move a few images away and come back.
Odd, even with my high-performance machine with a ton of RAM (32GB), LR does not seem to cache the images or much of it anyway, and has to re-render the image when moving back and forth in develop. It is definitely faster than previous versions... but not that much more if you already have a fast machine.
Great Graphics Card benchmark site: http://www.videocardbenchmark.net/
Just some data points..... FWIW.
Update: I discovered a bug... the PERFORMANCE tab in Preferences disappeared. Great. I suspect it is using the GPU as it is faster than the previous LR version.
Peace
Bruce in Philly
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