The Samsung Galaxy S8’s headline features are its edge-to-edge Infinity Display and striking new design. Of course it still comes packed with the latest hardware and technology like previous Galaxy phones, including iris recognition, wireless charging, and a flagship SoC. Actually, there are two different SoCs for the S8 and S8+. Most regions around the world will get Samsung's Exynos 8895, while regions that require a CDMA modem, such as the US and China, will get Qualcomm's Snapdragon 835. Both SoCs are built on Samsung's 10nm LPE process and are paired with 4GB of LPDDR4 RAM and 64GB of UFS NAND.

While no market receives both types of phones through official channels, with the wonders of modern shipping, anyone with a bit of time and patience would have little trouble tracking down the out-of-region version of the phone. Consequently, for the nerdy among us, we simply have to ask: how do these dueling SoCs compare? Which SoC – and consequently which phone – is better?

Today we’ll delve into the performance differences between the Snapdragon 835 and Exynos 8895 to help answer those questions. We'll also see how well they work with the Galaxy S8’s other hardware and software when we evaluate its system performance, gaming performance, and battery life.

Samsung Galaxy S8 Series
  Samsung Galaxy S8 Samsung Galaxy S8+
SoC Qualcomm Snapdragon 835 (US, China, Japan)
4x Kryo 280 Performance @ 2.36GHz
4x Kryo 280 Efficiency @ 1.90GHz
Adreno 540 @ 670MHz

Samsung Exynos 8895 (rest of world)
4x Exynos M2 @ 2.31GHz
4x Cortex-A53 @ 1.69GHz
ARM Mali-G71 MP20 @ 546MHz
Display 5.8-inch 2960x1440 (18.5:9)
SAMOLED (curved edges)
6.2-inch 2960x1440 (18.5:9)
SAMOLED (curved edges)
Dimensions 148.9 x 68.1 x 8.0 mm
155 grams
159.5 x 73.4 x 8.1 mm
173 grams
RAM 4GB LPDDR4 (US)
NAND 64GB (UFS)
+ microSD
Battery 3000 mAh (11.55 Wh)
non-replaceable
3500 mAh (13.48 Wh)
non-replaceable
Front Camera 8MP, f/1.7, Contrast AF
Rear Camera 12MP, 1.4µm pixels, f/1.7, dual-pixel PDAF, OIS, auto HDR, LED flash
Modem Snapdragon X16 LTE (Integrated)
2G / 3G / 4G LTE (Category 16/13)

Samsung LTE (Integrated)
2G / 3G / 4G LTE (Category 16/13)
SIM Size NanoSIM
Wireless 802.11a/b/g/n/ac 2x2 MU-MIMO, BT 5.0 LE, NFC, GPS/Glonass/Galileo/BDS
Connectivity USB Type-C, 3.5mm headset
Features fingerprint sensor, heart-rate sensor, iris scanner, face unlock, fast charging (Qualcomm QC 2.0 or Adaptive Fast Charging), wireless charging (WPC & PMA), IP68, Mobile HDR Premium
Launch OS Android 7.0 with TouchWiz

Our initial look at Snapdragon 835 revealed that its Kryo 280 performance cores are loosely based on ARM’s Cortex-A73 while the efficiency cores are loosely based on the Cortex-A53. Samsung's Exynos 8895 also has an octa-core big.LITTLE CPU configuration, but uses four of its own custom M2 cores paired with four A53 cores. Samsung introduced its first custom CPU core, the M1, last year. Compared to ARM’s A72, integer IPC was similar but the M1 trailed the A72 in efficiency. The M2 does not appear to be a radical redesign, but rather a tweaked M1 that offers the usual promises of improved performance and efficiency. Are the changes enough to top Qualcomm’s flagship SoC?

Battery life is one of the most important metrics for a smartphone. A bunch of cool features and lightning quick performance will do little to temper your frustration if the phone is dead by lunchtime. This was an issue for the Galaxy S6, which came with a small-capacity battery that contributed to its at-times disappointing battery life. Samsung increased their battery capacity for the S7 models, but there’s no further increase for the S8s. The smaller S8 retains the same 3000 mAh capacity as the S7, while the the S8+ drops 100 mAh compared to the S7 edge. Any improvement to battery life for this generation will need to come from more efficient hardware, and indeed at least for Qualcomm, this is precisely the angle they've been promoting to hardware developers and the public alike.

Previous Galaxy phones delivered good performance, but shortfalls in one or more performance metrics have kept them from being a class leader. Will the updates to the S8’s hardware and software finally smooth away these performance wrinkles? Will efficiency improve with the new 10nm SoCs? Did Samsung reduce power consumption in other areas? It’s time to take a closer look at the Galaxy S8.

CPU & Memory Performance
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  • boozed - Sunday, July 30, 2017 - link

    Showing your age... Reply
  • KevinKettler78 - Sunday, July 30, 2017 - link

    Could be more scientific. Articles for desktop, make distinctions. You haven't even separated by resolution, dreadfully inaccurate to say the least.

    If the JS tests are going to include multiple platforms you need to run all on Chrome. Funny fact, the iPhone is slower in JS tests running Chrome than equivalent droids. That's software, not hardware.

    Need another chart to demo battery consumption per FPS. No use in running a game at max if necessitates 200% battery drain over comps.
    Reply
  • SydneyBlue120d - Monday, July 31, 2017 - link

    Is UFS 2.1 what was already known as UFS 3.0 or is it a different standard? What can we expect for next year smartphone? Same 2.1, or 3.0 or 4.0? Thanks a lot. Reply
  • oranos - Tuesday, August 1, 2017 - link

    GSMArena posts this comparison months in advance. All benchmarks show Exynos is superior. Sponsored garbage anandtech posts garbage test months later claiming "everything is even". ya ok. Reply
  • tuxRoller - Wednesday, August 2, 2017 - link

    Ummm, sure.
    Gsmarena performed specint as well...
    Please please please tell me you: work for Samsung (so, maybe company loyalty), are Korean (national loyalty) or own stock in Samsung (umm, loyal to your bank account?).
    Reply
  • xfrgtr - Thursday, August 3, 2017 - link

    S8 the best Reply
  • LookAtTheSpecs - Wednesday, August 9, 2017 - link

    I think some of the fanboys all are missing something. Look at the resolutions of the Samsung vs Apple flagships.

    Samsung s8 2960 x1440 (570 ppi) 13.05 sq inch screen area
    Samsung s8+ 2960x1440 (521 ppi) 12.96sq in screen area
    Apple iphone 7 1334 x 750 (326 ppi...lol) 9.43 sq inch screen area
    Apple iphone 7 plus 1920 x 1080 (401 ppi) 12.96 sq in screen area

    The samsung is pushing more pixels and clearly is rocking over the iphone. Think about this, which device is doing more work and still excelling? The iphones benches dont see some hot when you look at this way. Even during these tests at FHD+ (2220x1080) its still pushing more pixels that the basically 720p the iphone had going for it. So the next time you think apple is just stomping the competition look a little closer at the inferior specs before spouting nonsense.
    Reply
  • LookAtTheSpecs - Wednesday, August 9, 2017 - link

    Galaxy S8+ 15.12 sq inches Reply
  • Frank Krammer - Friday, August 18, 2017 - link

    For the <a href="https://lowpi.com/us/samsung-s8">Samsung Galaxy S8</a> i prefer the exynos version, because it has double sims and seems to be a little faster than Snapdragon, however the only issue in the USA is that it doesn't have a guarantee. Reply
  • Frank Krammer - Friday, August 18, 2017 - link

    For the Samsung Galaxy S8 i prefer the exynos version, because it has double sims and seems to be a little faster than Snapdragon, however the only issue in the USA is that it doesn't have a guarantee https://lowpi.com/us/samsung-s8 Reply

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