It's no news that AMD's Radeon RX 570 graphics card is carved out of the same "Polaris 20" silicon as the RX 580, by disabling 4 out of 36 GCN compute units. AMD kicked a controversy recently, when it launched a China-specific Radeon RX 580-branded SKU with the core-configuration of the cheaper RX 570, confusing Chinese consumers. It turns out that this RX 580 2,048 SP SKU is based on the same exact ASIC variant of the "Polaris 20" silicon as the RX 570, with the only difference being device ID.

We watch a lot of GamersNexus content. Our GPU Database curator noticed something interesting in their recent teardown of a Dataland Radeon RX 580 (2,048 SP) graphics card directly imported from China. The unique ASIC sub-variant code etched on the GPU's aluminium reinforcement brace matches that of the RX 570. AMD internally refers to the RX 570 as "Polaris 20 XL," and its ASIC code etched is supposed to be "215-0910052." For the RX 580, the real one, aka "Polaris 20 XTX," the code etched is "215-0910038." Thanks to GamersNexus' high-resolution filming, our curator was able to spot the ASIC code for "Polaris 20 XL" on the Dataland card's GPU. This confirms that AMD merely took an RX 570 and gave it a different device ID to create the RX 580 2,048 SP, leaving consumers to wade through the confusion.

More and more AIB cards from AMD's upcoming RX 500 series are letting themselves be seen in the wild as we approach the official release date (April 18th) of the new series. However, as usual, sellers are already stocking up on new cards for sale, and some of them jump the gun on sale of new products.

Such was the case with the HIS Radeon RX 570 IceQ X2 - apparently, a vietnamese retailer is already shipping the cards as we speak. The card is based on the new Polaris 20 XL GPU, packs the same 2048 Stream Processors as the RX 470, and is clocked at 1266 MHz, with 4GB GDDR5 memory @ 7 GHz. Compared with the previous series' RX 470 IceQ X2, which had a GPU clock of 1244 MHz, the clock increase stands at 22 Mhz, which should yield a comparably tiny increase in overall performance.

AMD is on a roll with product launches lately, having just pushed out what is probably the most significant update in mainstream CPUs in years: the Ryzen 5 line of desktop processors. You can look over TPU's review of the 1500X and 1600X here and here. AMD is looking towards powering another central part of your desktop processor, though, with the impending launch of the RX 500 line of GPUs.

Confirmed as rebrands of previous-generation Polaris 10, the new RX 500 series will carry the new Polaris 20 XTX and Polaris 20 XL chips, which are expected to feature higher clocks (in the range of 1300-1400 MHz) from AIBs, before your own overclocking. PowerColor has officially confirmed the launch date as April 18th through social media with a tease for their new Red Devil graphics card. Now if only we could see Vega on this new horizon...

Videocardz has gotten their hands on the launch driver for the RX 500 series of graphics cards, and it would seem that previous rumors have indeed been vindicated: the revised RX 500 series features new code names for the chips that tick at its very heart. The RX 580, according to this report, will feature a Polaris 20 XTX chip (oh ATI X1950 XTX, how I remember you from staring in awe at your price and performance in computer magazines...), while the Radeon RX 570 will be equipped with a Polaris 20 XL part. And while the RX 560 is lacking from the list, the little chip-that-probably-will, the Polaris 12, makes a cameo under the RX 550 series and a "Lexa Pro" GPU code name... Which is just so different from all others, both in form and content, that one must wonder where it is its real name or a simple placeholder.