It looks like AMD is confident enough on its HBC (High-Bandwidth Cache) and HBCC (High-Bandwidth Cache Controller) technology, and other assorted improvements to overall Vega memory management, to consider 4 GB as enough memory for high-performance gaming and applications. On a Beijing tech summit, AMD announced that its RX Vega cards (the highest performers in their next generation product stack, which features rebrands of their RX 400 line series of cards to th new RX 500) will come in at 4 GB and 8 GB HBM 2 (512 GB/s) memory amounts. The HBCC looks to ensure that we don't see a repeat of AMD's Fury X video card, which featured first generation HBM (High-Bandwidth memory), at the time limited to 4 GB stacks. But lacking extensive memory management improvements meant that the Fury X sometimes struggled on memory-heavy workloads.

If the company's Vega architecture deep dive is anything to go by, they may be right: remember that AMD put out a graph showing how the memory allocation is almost twice as big as the actual amount of memory used - and its here, with smarter, improved memory management and allocation, that AMD is looking to make do with only 4 GB of video memory (which is still more than enough for most games, mind you). This could be a turn of the screw moment for all that "more is always better" philosophy.

AMD has recently sent out around a hundred patches, which amount to over 40 thousand lines of code, so as to allow developers to integrate support for its upcoming Vega GPU architecture under Linux. The new code is essential towards baking support for Vega under Linux, considering the many changes this architecture entails over AMD's current-generation Polaris 10 (soon to be rebranded, if sources are correct, to the new RX 500 series.) Also of note is the existence of seven different device IDs for Vega-based products, though this really can't be extrapolated to the amount of SKUs under the Vega banner. For now, that really is just a number.

AMD's upcoming RX 500 series of graphics cards is not going to set the world on fire with its feature-set. Essentially rebrands of AMD's mainstream Polaris GPUs used in current-generation RX 400 series, these have recently seen a slight delay on its time to market - now set at April 18th.

While architecture-level adjustments to this new series of cards so as to improve performance seem to be off the table, AMD is apparently looking to take advantage of manufacturing maturing and process improvements. The original Polaris 11 and Polaris 10 chips were manufactured using the Low Power Early (LPE) process, which looks to balance availability, yields, and time-to-market with performance and power. New reports peg the new dies to carry the Polaris 21 and Polaris 20 monikers, and will feature higher clocks on account of the new Low Power Performance (LPP) process.

We've previously covered how AMD's RX 500 series is to be a rebrand of the company's successful RX 400 series. Previous reports pegged the RX 500 series' launch on April 11th; now, it would seem that there has been a slight, one-week delay on the launch date, with it having been pushed back to April 18th. Apparently, this delay is looking to allow more time to "fine-tune the drivers".

The RX 500 series are purportedly straight rebrands from equivalent RX 400 series GPUs (RX 580 will be a rebrand of the RX 480, and so on down the ladder). The need for driver fine-tuning seems a little baffling considering these straight rebrands, but may have more to do with the reported Polaris 12 chips that are expected for launch than any other metric. Remember, RX 500 chips are expected to carry somewhat higher clock-speeds than their RX 400 originals, with some improved power/performance ratio being derived from improvements in foundry processes. But if the rebranding scheme holds up, don't expect these to bring in any meaningful changes towards these cards' performance. AMD is hoping Polaris tides them over through the mainstream market until it can introduce its Vega-based, high-performance GPUs, which are heralded to mark AMD's return to the high-performance consumer graphics segment in a while. Fingers crossed.Source: Thanks @TheMailMan78

The folks at Heise online have put forward a report on how AMD's RX 500 series of graphics cards will be little less than direct rebrands of the Polaris 10 and Polaris 11 GPUs that AMD introduced with its RX 400 series of graphics cards. Apparently, a straight rebrand is in order, with the RX 580 entering the fray in the place of the RX 480, the RX 570 substituting the RX 470, and so on. Heise reports that the Polaris 10-based RX 500 should see the light of day as soon as April 4th, with Polaris 11-based solutions coming in a little later, on April 11th.

Videocardz, however, reports that these will be slightly more than a straight rebrand - if you can call a slight bump in clockspeeds as trumping a rebrand. The RX 580 is supposed to ship with base clocks ar 1340 MHz (74 MHz more than the reference RX 480), with the RX 570 carrying a much less significant 38 MHz increase over its RX 470 counterpart. Videocardz also reports on the possibility of AMD introducing a new Polaris 12 GPU with the RX 500 series, which will apparently be an even lower-end part than even Polaris 11.