While we mentioned this in our Galaxy Alpha launch article, Samsung is finally announcing the launch of their new Exynos 5430 SoC.

The main critical upgrade that the new chips revolve around is the manufacturing process, as Samsung delivers its first 20nm SoC product and is also at the same time the first manufacturer to do so.

On the CPU side for both the 5430, things don’t change much at all from the 5420 or 5422, with only a slight frequency change to 1.8GHz for the A15 cores and 1.3GHz for the A7 cores. We expect this frequency jump to actually be used in consumer devices, unlike the 5422’s announced frequencies which were not reached in the end, being limited to 1.9GHz/1.3GHz in the G900H version of the Galaxy S5. As with the 5422, the 5430 comes fully HMP enabled.

A bigger change is that the CPU IP has been updated from the r2p4 found in previous 542X incarnations to a r3p3 core revision. This change, as discussed by Nvidia earlier in the year, should provide better clock gating and power characteristics for the CPU side of the SoC.

On the GPU side, the 5430 offers little difference from the 5422 or 5420 beyond a small frequency boost to 600MHz for the Mali T628MP6.

While this is still a planar transistor process, a few critical changes have been made that make 20nm HKMG a significant leap forward from 28nm HKMG. First, instead of a gate-first approach for the high-K metal gate formation, the gate is now the last part of the transistor to be formed. This improves performance because the characteristics of the gate are no longer affected by significant high/low temperatures during manufacturing. In addition, lower-k dielectric in the interconnect layers reduce capacitance between the metal and therefore increase maximum clock speed/performance and reduce power consumption. Finally, improved silicon straining techniques should also improve drive current in the transistors, which can drive higher performance and lower power consumption. The end-effect is that we should expect an average drop in voltage of about 125mV, and quoting Samsung, a 25% reduced power.

In terms of auxiliary IP blocks and accelerators, the Exynos 5430 offer a new HEVC (H.265) hardware decoder block, bringing its decoding capabilities on par with Qualcomm’s Snapdragon 805.

Also added is a new Cortex A5 co-processor dedicated to audio decoding called “Seiren”. Previously Samsung used a custom FPGA block called Samsung Reprogrammable Processor (SRP) for audio tasks, which seems to have been now retired. The new subsystem allows for processing of all audio-related tasks, which ranges from decoding of simple MP3 streams to DTS or Dolby DS1 audio codecs, sample rate conversion and band equalization. It also provides the chip with voice capabilities such as voice recognition and voice triggered device wakeup without external DSPs. Samsung actually published a whitepaper on this feature back in January, but we didn’t yet know which SoC it was addressing until now.

The ISP is similar to the one offered in the 5422, which included a clocking redesign and a new dedicated voltage plane.

The memory subsystem remains the same, maintaining the 2x32-bit LPDDR3 interface, able to sustain frequencies up to 2133MHz or 17GB/s. We don’t expect any changes in the L2 cache sizes, and as such, they remain the same 2MB for the A15 cluster and 512KB for the A7 cluster.

The Galaxy Alpha will be the first device to ship with this new SoC, in early September of this year.

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  • lilmoe - Thursday, August 14, 2014 - link

    Those were rumors, not facts. This 20nm chip is definitely fabbed by Samsung.
  • extide - Thursday, August 14, 2014 - link

    No, Samsung and TSMC are on the same "Path" -- 28nm ---> 20nm ---> "16nm" (not really a true shrink though)
  • bleh0 - Thursday, August 14, 2014 - link

    I would be more excited but Samsung needs more adoption and more open documentation for me to actually care about anything Exynos related.
  • lilmoe - Thursday, August 14, 2014 - link

    Yea? I used to care too back in the custom ROM days, then gave up and flashed back to stock on my GS2...
    What seriously PISSED me off was the non-functional GTS on my Exynos 5410 GS4. Samsung too their sweet time, but I'm glad they're back on track with their Exynos line of chips.
  • Frenetic Pony - Thursday, August 14, 2014 - link

    Wait... what manufacturing process is this? This is the first I've heard of it, and it sounds like A. A Samsung created process B. Has nothing at all to do with a process shrink, and is them just improving their 28nm process somewhat and calling it something different just to bullshit some PR for themselves.
  • name99 - Thursday, August 14, 2014 - link

    It does seem very strange. I don't know if they've been keeping it (VERY) secret, or if it is some sort of "optimistic reinterpretation" of a modified 28nm process.
    If you go to their foundry website all evidence is that claims of 20nm support have been added at the last minute. The main page:
    lists 20nm in two places (but left out of a list where it would make sense) and the link to "more info" about 20nm is broken.
    If you go to
    there is likewise nothing about 20nm.

    Previous stories mention Samsung 20nm RAM and NAND production, which isn't really relevant.
    There IS a collection of stories from June 2012 talking about Samsung beginning construction of a 20/14nm plant. Assuming we can trust those, they seem to have been able to the the plant up-and-running with extraordinary stealth.
  • Achtung_BG - Friday, August 15, 2014 - link

    8 may 2014 Taiwan Semi:
    In our April 28th AAPL Update, we noted that 20nm production levels at Samsung Austin were in the 3000-4000 wpm range. These volumes were sufficient to debug/improve their yields as they vied for second source position for the AAPL designs. But our latest checks indicate a surprising twist to the 20nm development story. We are getting indications that Samsung Austin is planning to ramp their 20nm technology designs to 12,000 wpm by July, but the upside is for QCOM, not AAPL. It is our understanding that QCOM is not happy with the 20nm development/yield progress at TSM and thus have been qualifying their latest technology node designs at Samsung. Obviously, the potential loss of business from AAPL and QCOM would be bad news for TSM after recently losing the AMD (AMD) GPU business. And while 20nm demand will continue to be strong for TSM, we expect Samsung to be a viable threat to TSM for the advanced process nodes going forward.

    S1 Fab GiHeung South Korea upgarde to 14 nm finfets
    S3 Fab HwaSeong South Korea upgrade to 14 finfets
    S2 Fab Austin USA upgrade to 20nm 30 000 wafers per month

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