I&#x27;m really skeptical these cards will be cost&#x2F;perf competitive with AMD&#x27;s upcoming Polaris.<p>The 1080 is the only card with GDDR5X, which from what I&#x27;ve read has twice the bandwidth of GDDR5.  The 1080 and 1070 both have 256-bit buses, meaning if the clock rates are equal, the 1070 will have half the memory bandwidth of the 1080.<p>In contrast, the <i>current gen</i> AMD R9-290, R9-390 and higher have 512-bit GDDR5 buses, and the leaked Polaris cards have 256-bit GDDR5X buses (eqivalent).<p>AMD cards tend to be priced lower than NVidia cards, so we&#x27;re very much in a wait-and-see mode right now.<p>(We do datacenter level cryptographic compute and our workloads are very memory bandwidth constrained.)