Some AMD GCN GPU Disabled Stream Processors Unlockable via Software - [Techpowerup]

This is big. A new software is doing rounds on the forumscape, with lets you check exactly which GCN compute units (CUs) were disabled by AMD to carve out your "Pro" SKU graphics card (eg: R9 Fury non-X, R9 390, R9 285, etc.), and if you're lucky, re-enable some of those disabled CUs via a good old soft-mod. Called CUINFO, developed by OCN Forums member tx12, the tool has seen some success in unlocking disabled CUs in graphics cards based on "Fiji," "Hawaii," and "Tonga" chips.

The success is limited probably because AMD appears to be using two methods to disable CUs - laser-cutting them, and through firmware. Even in chips that let you unlock, you may not unlock all CUs, since some are genuinely damaged and disabled as part of the harvesting process, to maximize yield. There are no telltale signs of which chips let you unlock and which don't, and so you'll be playing a lottery. Cards with re-enabled CUs have shown increased performance, confirming that the soft-mod is real.

Sources: OCN Forums, SweClockers, and VideoCardz

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