| Op | Model | PLDI11 | PowerG5 | Power6 | Power7 | |
| Z6.1+sync+eieio+addr | Allow | Forbid | Allow | No, 0/3.9G | No, 0/1.0G | No, 0/27G |
| Allow unseen | Allow unseen | Allow unseen | ||||
| Z6.1+sync+lwsync+addr | Allow | Forbid | Forbid | No, 0/4.9G | No, 0/1.7G | No, 0/38G |
| Allow unseen | Allow unseen | Allow unseen |