I've been trying to find the theoretical peak bandwidth of the texture units on radeon 7970 gpus but haven't been able to come up with something. Could somebody point to a spec sheet that has that number?
The reason why I ask is that in the past it was often recommended to employ the texture units for reading from global memory for bandwidth limited kernels (e.g. on a 5870 the aggregate texture bandwidth is ~1TB/s, about 5 times more than bandwidth from global memory). Is this still a recommended optimization for gcn gpus?