It's much more true today to be fair, and with DX12/Vulkan it should become much more common over the next few years. Ryzen is much better positioned anyway be

It's much more true today to be fair, and with DX12/Vulkan it should become much more common over the next few years. Ryzen is much better positioned anyway because it has almost comparable IPC (Broadwell levels), that means even when you get a dual core/single core optimised game you'll get good performance rather than the horrible situation with older AMD CPUs.