Windows NT had full blitting of windows while moving them instead of xored wireframe - it was the single easiest way of distinguishing between it and Windows 3.

Windows NT had full blitting of windows while moving them instead of xored wireframe - it was the single easiest way of distinguishing between it and Windows 3.11 for Workgroups. That was in 93/94 - I don't know how it compared with Be of that era, but Wikipedia says the first developer release wasn't until late 95.