Matching a 950 released one year earlier and on a much smaller process has fail written all over it in my book. Nobody is going to buy ~$100 cards for DX12 anyway so that's a moot point.
This factory OC'd 4GB 460 matches 950 reference. This card only managed a 2.4% performance boost with OC, while 950s average a 20% performance increase over reference (I bought one so I checked all the reviews). The real difference is 15-20% in favor of the 950, based on W1zzard's reviews.