Differences betweem LR and Camera Raw

Question

Hi, I'm using lightroom 5.7.1 to work on my RAW files while I was using Camera Raw before (on PC). I compared results in LR and Camera Raw after (with the same adjustments). Histogram in LR shows no clipping (in low or high light). The same picture openned in Camera Raw shows a high light clipping. How is it possible ?
Is there a way to get the same result in both software ?
Thanks.

Answer 1

To summarize what you're seeing and why things are different:
The ACR plug-in shows a histogram and clipping warnings based on if you exported the file using whatever color profile you've specified in the Workflow options using the blue link below the main image area--in your screenshot this is AdobeRGB.
Lightroom shows the histogram and warnings based on its own internal working color space which is only used in LR and cannot be selected from a list in any program.  The way to change this behavior is to turn on softproofing and specify the output profile the same as you have in ACR and you should see a similar histogram and out-of-gamut warnings.  I used the word "should" and Modesto is asking for confirmation about whether LR-with-softproofing enabled is similar to ACR or not.