We have here with a couple of leaked details regarding the Sapphire Radeon RX 470 Platinum and Radeon RX 460 Nitro.

Sapphire Radeon RX 470 Platinum 

The custom variant of the RX 470 from sapphire camp, namely Sapphire Radeon RX 470 Platinum is based on a Polaris 11 silicon formed by 2048 Stream Processors with 4GB  or 8GB of GDDR5 @ 7000 MHz memory coupled to memory interface of 256-bits resulting bandwidth of 224 GB / s. Despite the name, this is a reference design, which results in the reference cooling system with a standard shroud in a silver color, but in the back it has aluminum backplate in silver and black. This model features a VRM 4 + 1 phase power (Vs 6 + 1 of the RX 480) and feeds via a single PCI-Express 6 – pin connector.

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Sapphire Radeon RX 460 Nitro

On the other hand, the Sapphire Radeon Nitro RX 460 offers 896 Stream Processors attached to 2 GB or 4 GB of GDDR5 memory with a memory interface of 128 bits. This is a reference model, but includes improved cooling solution comprised of a Heatsink and a configuration dual fan. It doesn’t require any PCI-Express connector for power. Not a word about the release of both GPUs.

Sapphire Radeon RX 460 Nitro