TwinMOS is more reknowned than corsair for OC'ing. I've never once seen corsair used in any heavy OC'ing especially where world records is concerned...but we've already discussed that.
KingstonHyperX REALLY shouldn't be considered especially for higher clocks
Fig - TCCD is referring to the actual IC's (integrated circuits) meaning the black chips on the RAM. Some perform better than others especially when considering overclocking.
Samsung TCCD chips are whats used for low latency memory that have timings like 2-2-2-5 whereas a more generic chip would be used for valueRAM that has timings like 3-3-3-8
That articles explains a little about TCCD, but more-so about the actual PCB design that plays a role in OC'ing