In a leaked presentation, AMD confirmed specifications of its second and third “Polaris” graphics cards, the Radeon RX 470, and the Radeon RX 460.
The RX 470 can play everything at 1080p resolution, under $150. It will feature Polaris10 “Ellesmere” silicon same as the RX 480. The RX 470 packs 2,048 stream processors across 32 GCN compute units, 128 TMUs, 32 ROPs, and a 256-bit wide GDDR5 4GB of memory, all taking power from a single 6-pin PCIe power connector.
The Radeon RX 460 will base on the new 14 nm Polaris11 “Baffin” silicon, and targeted for MOBA games. The card will feature 896 stream processors across 14 compute units, 2 GB of GDDR5 memory across a 128-bit wide memory interface. The RX 460 didn’t require any additional power connector and totally relies on the PCI-Express slot entirely for power. The RX 460 looks very similar to Radeon R9 Nano but feature much smaller heatsink.
The leaked also include a roadmap and here AMD again listed Vega with HBM2 for 2017.