It looks like AMD didn't use the fuse locking on its HD 6950 cards and it is a simple BIOS update that makes the card switch from its 1408 to 1536 shaders and even reach HD 6970 clocks. For now, the unlock is possible on all HD 6950 cards and not just a handful of review samples.
Nice news for all those who snatched the HD 6950 and it looks like these will be selling quite nicely in next few days. You can find more details here.
![HD6950GPU_1](/images/stories/2010/December/General_News/HD6950GPU_1.jpg)