Will the PS4 represent 50% better performance than the X1

[HoloDust]

Captain_Tom said:

The difference is that of comparing a 7770 with 1GB to a 7870 with 2GB.  Essentially double the power.  After a year expect PS4 games to run at higher framerates with higher resolution textures.  It will be very noticeable. 

No, not double. If you look at vanilla GPU specs of PS4, it is slightly above 7850, and XOne is close to 7770. However, XOne GPU appears to be cut down 7790, so it does have some things better than 7770, plus MOVE engines and eSRAM to make up for lower bandwidth, effectively making it faster than 7770. Of course, PS4's GPU also has its own enhacements, so difference in performance will probaly remain the same as vanilla 7850 to 7770...which is around 50%.