The NVIDIA GeForce RTX 4060 Ti (16 GB) will be launching with a 165-watt TDP and different GPU than the 8 GB model, according to sources with VideoCardz. That TDP is reportedly just a smidgen higher than the GeForce RTX 4060 Ti (8 GB), which is rumored to feature a TDP of 160 watts. The NVIDIA GeForce RTX 4060 Ti (16 GB) is also said to feature the AD106-351 GPU instead of the AD106-350 GPU in the 8 GB model, implying that there will be some differences in design. Recent reports have suggested that the GeForce RTX 4060 Ti (16 GB) won’t be out until July, with the GeForce RTX 4060 Ti (8 GB) coming earlier in May.
From a VideoCardz report:
Nevertheless, the RTX 4060 Ti with 16GB VRAM will have a different SKU than 8GB model (363 vs. 361), but the board design will remain the same (PG190). More importantly, NVIDIA found it necessary to use a different GPU variant for this card specifically, but it is a minor bump from AD106-350 to 351. This likely means that it has the same CUDA core count, but some physical changes to the design were still necessary.
As expected, by doubling the memory size, the power consumption will increase as well. However, it is reportedly just 5W higher than RTX 4060 Ti 8GB spec of 160W. It is unclear yet if the 16GB variant has the same memory clock of 18 Gbps, but for now, this is a good assumption.