Paul's Hardware on Twitter: "My MSI Gaming Z RTX 2070 ($600) has a TU106-400A-A1 GPU, whereas my MSI Armor RTX 2070 ($500) has a TU106-400-A1 variant. I'm testing the cheaper card to
NVIDIA's Secret GPU: TU106-400A vs. TU106-400 Benchmark (2070 XC Ultra Review) | GamersNexus - Gaming PC Builds & Hardware Benchmarks
YouTuber modifies GeForce RTX 2070 to support 16GB GDDR6 memory - VideoCardz.com