Leaks concerning AMD's Polaris graphics cards and their specificationshave been consistently coming in over the past several weeks, signalling that we're getting ever closer to the immanent Radeon 400 series launch this summer. AMD has developed three different 14nm FinFET GPUs, vega 10, Polaris 10 & Polaris 11. The specs of two of which have recently been leaked & today we're adding the third to complete the list.

A listing of one AMD Polaris 11 graphics card SKU that's been spotted on the Compubench database via videocardz. This database has played an instrumental role over the past several years in uncovering incredibly accurate information about next generation AMD graphics cards.

AMD's entire Fury, 300 and 200 series were leaked on this very same database and all the specificationsthat we've learned from those listings about AMD GPUs over the past couple of years checked out.With that in mind, we have little doubt thattoday's leaked Polaris 11 specifications are accurate.

Despite 11 being a larger number than 10, Polaris 10 is actually a larger, higher end GPU than Polaris 11. Chief Architect & head of AMD’s Radeon Technologies Group confirmed that the naming scheme is time-based & Polaris 10 had simply been designed before Polaris 11, hence the smaller numerical designation.

Polaris 10 is AMD’s mid-range14nm FinFET graphics chip, Polaris 11 is the smallest of the family and Vega 10 is the HBM2 powered high-end flagship 14nm GPU launching in 2017 to succeed the Fury lineup. It willfeature AMD’s nextgeneration Vega architecture and will be the company’s first GPU to feature second generation High Bandwidth Memory.

Vega 10 To Succeed AMD's Flagship Fiji GPU & The R9 Fury X

We've learned that AMD is preparing a next generation high-end GPU based brand new GCN architecture meant to succeed the company's previous flagship R9 Fury X. Vega 10's launch will come after the company's roll-out of its mainstream Polaris RX 400 series graphics cards this year and will feature a brand new graphics architecture according to to the LinkedIn profile of a leading AMD design engineer.

I should point out that the "RX 490" moniker is by no means official and is simply a place holder until the card's announced. AMD could opt to give the card an RX 500 series brand i.e. RX 590 or perhaps give it the Fury brand name i.e. RX Fury Vega.

Yu Zheng R&D Manager at AMD

Vega 10 Specs

The GPU will feature second generation stacked High Bandwidth Memory with up to 1 terabyte/s of memory bandwidth, more than three times that of the GTX 1080. The GPU is configured with a whopping 4096 GCN 5.0 stream processors. In addition to thenear 80% increase in raw compute horsepower compared to the RX 480 & Polaris 10, Vega 10 will deliver a huge jump inenergyeffciency according to the company'slatest roadmap.

The Cut Back Version of AMD'sPolaris 11 GPU Has 16 Compute Units-1024 GCN 4.0 Cores & A 128bit Memory Interface

So let's get straight to it. There are six different Polaris 11 SKUs, likelythree for desktops and three for notebooks. Thespecifications that have leaked are for an SKU with the device ID 67FF which is the most cut back, lowest end, Polaris 11 SKU there is.Thismeans that the full Polaris 11 GPU will have more than 1024 GCN cores.

This indicates that the full chip will likely have 1280 GCN cores and will be a replacement for AMD's Pitcairn GPU - 370, 270 & 7800 series cards -in terms of pricing and market positioning. So it's very likely we're looking at the R9 470 here. The SKU in question also features a 128bit memory interface, however the memory capacity data is missing. But 4GB and 2GB of GDDR5/X memory are two likely configurations for this GPU.

This is the third AMD 14nm FinFETGPU spec leak, prior to that we've seen the specifications for Polaris 10 & Vega 10 also leak online.

AMD Polaris Radeon 400 Series "Preliminary" Specs: