It seems that the Newegg-leaked, ASRock-made 16GB version of Intel's Arc 770 graphics card is on the verge of materializing, following a listing on ASRock's own website. The main point here is that there are few Arc A770 GPUs that actually sport the full memory buffer, especially since Intel discontinued its reference, Limited Edition Arc A770. Now, ASRock has confirmed that it is indeed launching a 16GB Arc under its "Phantom Gaming" marketing brand.
There's little to differentiate the 16GB ARC A770 from the 8GB version of the same card, as you might expect. The difference lies mostly in the memory chips used, which are now double the density (compared to the more common 8GB models) and offer slightly faster speeds. That said, any performance improvement from the additional memory throughput will be hard to detect, as the difference between both densities is small (17.5 Gbps on the 16GB model against the 16 Gbps on the 8GB one).
