For gaming, those CPUs were a sidegrade at best. To be honest, it wouldn't have been a big issue, especially for folks upgrading from way older hardware, if only their pricing wasn't so out of line with the value that they provide (look at their GPUs, at least there the MSRP makes the hardware good value).
There were power efficiency gains, as well as nice productivity improvements for some workloads: https://www.youtube.com/watch?v=vjPXOurg0nU
For gaming, those CPUs were a sidegrade at best. To be honest, it wouldn't have been a big issue, especially for folks upgrading from way older hardware, if only their pricing wasn't so out of line with the value that they provide (look at their GPUs, at least there the MSRP makes the hardware good value).