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AMD "Navi 14" and "Navi 12" GPUs Detailed Some More

The third known implementation of AMD's "Navi" generation of GPUs with RDNA architecture is codenamed "Navi 14." This 7 nm chip is expected to be a cut-down, mainstream chip designed to compete with a spectrum of NVIDIA GeForce GTX 16-series SKUs, according to a 3DCenter.org report. The same report sheds more light on the larger "Navi 12" GPU that could power faster SKUs competing with the likes of the GeForce RTX 2080 and RTX 2080 Super. The two follow the July launch of the architecture debut with "Navi 10." There doesn't appear to be any guiding logic behind the numerical portion of the GPU codename. When launched, the pecking order of the three Navi GPUs will be "Navi 12," followed by "Navi 10," and "Navi 14."

"Navi 14" is expected to be the smallest of the three, with an estimated 170 mm² die-area, about 24 RDNA compute units (1,536 stream processors), and expected to feature a 128-bit wide GDDR6 memory interface. It will be interesting to see how AMD carves out an SKU that can compete with the GTX 1660 Ti, which has 6 GB of 192-bit GDDR6 memory. The company would have to wait for 16 Gbit (2 GB) GDDR6 memory chips, or piggy-back eight 8 Gbit chips to achieve 8 GB, or risk falling short of recommended system requirements of several games at 1080p, if it packs just 4 GB of memory.

Radeon RX 5300 XT and AMD B550 Chipset Coming to OEM Systems in October

HP has listed new desktop consumer prebuilts that use previously unannounced hardware from AMD, namely the Radeon RX 5300 XT graphics card and the B550 chipset. B550 has been expected for a while — it's a lower-cost chipset for Ryzen 3000 "Zen 2" processors with reduced feature set. HP calls the chipset "AMD Promontory B550A" in their sheets which seems to be designed and produced by ASMedia (unlike X570, which is a fully AMD in-house design). One of the major differences between X570 and B550 is that the latter has no support for PCI-Express 4.0, which won't matter one bit in its target segment. This move not only reduces chipset cost, it also drives down the cost of motherboards significantly, as the more stringent signal integrity requirements for PCIe 4.0 won't apply here.

While we have heard rumors that AMD is working on a smaller chip for their "Navi" architecture (Navi 12 and Navi 14), it's uncertain whether RX 5300 XT is really based on Navi, or whether it will be yet another rebrand — we wouldn't be surprised if Polaris is making a comeback yet again. Both systems are listed for € 699 and € 899, with shelf availability expected for October 8th.

AMD Updates Roadmaps to Lock RDNA2 and Zen 3 onto 7nm+, with 2020 Launch Window

AMD updated its technology roadmaps to reflect a 2020 launch window for its upcoming CPU and graphics architectures, "Zen 3" and RDNA2. The two will be based on 7 nm+ , which is AMD-speak for the 7 nanometer EUV silicon fabrication process at TSMC, that promises a significant 20 percent increase in transistor-densities, giving AMD high transistor budgets and more clock-speed headroom. The roadmap slides however hint that unlike the "Zen 2" and RDNA simultaneous launch on 7th July 2019, the next-generation launches may not be simultaneous.

The slide for CPU microarchitecture states that the design phase of "Zen 3" is complete, and that the microarchitecture team has already moved on to develop "Zen 4." This means AMD is now developing products that implement "Zen 3." On the other hand, RDNA2 is still in design phase. The crude x-axis on both slides that denotes year of expected shipping, too appears to suggest that "Zen 3" based products will precede RDNA2 based ones. "Zen 3" will be AMD's first response to Intel's "Comet Lake-S" or even "Ice Lake-S," if the latter comes to fruition before Computex 2020. In the run up to RDNA2, AMD will scale up RDNA a notch larger with the "Navi 12" silicon to compete with graphics cards based on NVIDIA's "TU104" silicon. "Zen 2" will receive product stack additions in the form of a new 16-core Ryzen 9-series chip later this month, and the 3rd generation Ryzen Threadripper family.

AMD Could Launch New Navi GPUs Soon

AMD's president and CEO Dr. Lisa Su was talking during AMD's Q2 earnings Q&A conference and got asked a very interesting question. When prompted about high end Navi GPUs, Dr. Su answered with "I would say they are coming. You should expect that our execution on those are on track and we have a rich 7 nm portfolio beyond the products that we have already announced in the upcoming quarters."

This answer gives us hope to see more powerful Navi GPUs possibly by the end of the year, meaning that AMD's answer to Turing is almost ready. As we saw earlier in the rumors, we might get additional higher end GPU models in form of alleged RX 5800 and RX 5900, with XT variants available for both of those models. The RX 5800 is supposed to utilize a new GPU core called Navi 12, while the core for RX 5900 is still unknown.

AMD Readies Larger 7nm "Navi 12" Silicon to Power Radeon RX 5800 Series?

AMD is developing a larger GPU based on its new "Navi" architecture to power a new high-end graphics card family, likely the Radeon RX 5800 series. The codename "Navi 12" is doing rounds on social media through familiar accounts that have high credibility with pre-launch news and rumors. The "Navi 10" silicon was designed to compete with NVIDIA's "TU106," as its "XT" and "Pro" variants outperform NVIDIA's original RTX 2060 and RTX 2070, forcing it to develop the RTX 20 Super series, by moving up specifications a notch.

Refreshing its $500 price-point was particularly costly for NVIDIA, as it was forced to tap into the 13.6 billion-transistor "TU104" silicon to carve out the RTX 2070 Super; while for the RTX 2060 Super, it had to spend 33 percent more on the memory chips. With the "Navi 12" silicon, AMD is probably looking to take a swing at NVIDIA's "TU104" silicon, which has been maxed out by the RTX 2080 Super, disrupting the company's $500-700 lineup once again, with its XT and Pro variants. There's also a remote possibility of "Navi 12" being an even bigger chip, targeting the "TU102."
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