The Samsung Galaxy S10+ Snapdragon & Exynos Review: Almost Perfect, Yet So Flawed
by Andrei Frumusanu on March 29, 2019 9:00 AM ESTBattery Life: Impressive
Battery performance of the Galaxy S10+ has been touted to be as class-leading. The introduction of a larger battery, more efficient screen as well as a new generation of SoCs are sure to bring improvements over last year’s Galaxy S9. One aspect that readers will have waited for impatiently is our testing of the new Exynos 9820 variant against the Snapdragon 855, which has also been one topic I’ve been extremely interested to see.
We run Samsung's Galaxy devices at the full potential they can deliver, something we've done for several generations now. This means that the screen resolution is set to the native 1440p of the display panels, and the new battery settings on the S10 were also set to "Performance" mode.
Without further ado, let’s get do the results:
In our web browsing test, both Galaxy S10+s are showcasing outstanding longevity at 13.08h for the Exynos and 12.75h for the Snapdragon variant. Least to say, I was extremely surprised to see this result even though we measured the Exynos 9820 CPU to be quite less efficient than the Snapdragon 855 in peak performance efficiency. I would have not expected the Exynos to match the Snapdragon, much less slightly beat it.
Before going into more details, let’s see the PCMark battery test results:
Here, in absolute terms, the Galaxy S10+ aren’t quite as impressive as on the web test and further lag behind the excellent results of the Kirin 980 devices. Nevertheless, these are some impressive figures and again it’s very good to see that both units are almost evenly matched, this time the Snapdragon unit lasting slightly longer than the Exynos.
To explain these results, we have to keep one thing in mind: the Exynos unit will have posted worse performance than the Snapdragon, so it will have spent more time at the lower more efficient frequency states.
One thing that I also noticed, is that in very low idle loads where there’s just some light activity on the A55 cores, the Exynos 9820 variant actually uses less power than the Snapdragon unit. The figures we’re talking about here are 20-30mW, but could possibly grow to bigger values at slightly more moderate loads. It’s possible that Qualcomm has more static leakage to deal with on the 7nm process than Samsung on 8nm, one thing that I’ve come to hear about the TSMC 7nm node.
Furthermore, one of the biggest improvements for the Galaxy S10 over past devices isn’t actually the SoC nor the actual bigger battery. It’s actually the display as well as the base power consumption of the phone. In Airplane mode, the base power has gone down by almost 100mW compared to the Galaxy S9+ which is a fantastic development and is especially something that will result in higher low-brightness battery life.
Currently in my time with both S10+ units, I can say they’ve been among the longest lasting Android devices I’ve tested.
Exynos vs Snapdragon in identical usage patterns & Prolonged idle periods
One issue I can confirm with the Exynos unit is that after a voice call in any app, the phone isn’t correctly entering its lower power state, and will suffer from increased idle battery drain until a reboot. This is something that hopefully Samsung addresses in a firmware update as it doesn’t look to be a hardware related issue. When not affected by this bug, both phones idle very similar to each other and slightly better than the S9+ I use as my daily device.
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xian333c - Wednesday, April 17, 2019 - link
How to buy that unicorn on table in ur shout?Brightontech - Sunday, April 21, 2019 - link
it is an awesome phone<a href="https://www.brightontech.net/2019/04/audiovideo-ed... Editor and Video Converter</a>
Video Editor and Video Converter
Jhereck - Tuesday, April 23, 2019 - link
Hi Andrei another question regarding the patch designed to increase PELT resonsiveness : is there any way a third party kernel can include it, therefore making s9 and s10 the devices they should be ?You know like last year when you tried to play with s9 exynos kernel in order to match snapdragon power and power efficency ?
Thanks in advance
Rixos - Thursday, May 2, 2019 - link
It's kind of sad, I was actualy looking at the s10e as a replacement device for my galaxy S7 but as I live in Europe I would be getting the Exynos variant. Worse audio quality, less processing power and worse camera results. Basically seeing this kind of ruined the purchase for me. In some sense I wish I would not have seen it, the S10e is likely still a great upgrade for my S7 but knowing that there is a better version out there just ruins it for me. I guess ignorance sometimes really is bliss.theblitz707 - Thursday, May 23, 2019 - link
I see this is in every review. I actually went to stores and used my phones ambient light sensor and an another phones flashlight to measure display brightnesses. Although slightly inaccurate lg g7 gave a 1050lux reading with boost on.(all test on apl100) Taking that as a base s9 plus did 1020 s10 plus did 1123 and p20 pro did around 900 when i shone my flashlight to each sensor. So why everyone makes it seem like they are less bright than they actually are? Does using a flashlight to trigger high brightness impossible to imagine? Let me tell you those oled screens get very bright with high ambient light like outside on a sunny day.ballsystemlord - Monday, June 3, 2019 - link
Spelling and grammar corrections. I did not read the whole thing, so there maybe more.Samsung new L3 cache consists of two different structures
Possesive:
Samsung's new L3 cache consists of two different structures
Similarly, the A75's should be a ton more efficient the A55 cores at the upper performance points of the A55's.
Missing "than":
Similarly, the A75's should be a ton more efficient than the A55 cores at the upper performance points of the A55's.
Arm states that the new Cortex A76 has new state-of-the-art prefetchers and looking at what the CPU is able to do one my patterns I'd very much agree with this claim.
Missing "to":
Arm states that the new Cortex A76 has new state-of-the-art prefetchers and looking at what the CPU is able to do to one my patterns I'd very much agree with this claim.
The nature of region-based prefetchers means that fundamentally any patterns which has some sort of higher-level repeatability will get caught and predicted, which unfortunately means designing a structured test other than a full random pattern is a bit complicated to achieve.
"have" not "has" and a missing y:
The nature of region-based prefetchers means that fundamentally any patterns which have some sort of higher-level repeatability will get caught and predicted, which unfortunately means designing a structured test other than a fully random pattern is a bit complicated to achieve.
Switching over from linear graphs to logarithmic graphs this makes transitions in the cache hierarchies easier to analyse.
Excess "this" and analyze is with a "z":
Switching over from linear graphs to logarithmic graphs makes transitions in the cache hierarchies easier to analyze.
Indeed one of the bigger microarchitectural changes of the core was the addition of a second data store unit.
Missing comma:
Indeed, one of the bigger microarchitectural changes of the core was the addition of a second data store unit.
...we see that in the L3 memory region store curve is actually offset by 1MB compared to the flip/load curves, which ending only after 3MB.
"ed" not "ing":
...we see that in the L3 memory region store curve is actually offset by 1MB compared to the flip/load curves, which ended only after 3MB.
"Traditionally such misses are tracked by miss status holding registers (MSHRs), however I haven't seen Arm CPUs actually use this nomenclature."
This is almost certainly a run on sentence with missing punctuation. Try:
"Traditionally, such misses are tracked by miss status holding registers (MSHRs). However, I haven't seen Arm CPUs actually use this nomenclature."
"Again to have a wider range of performance comparison across ARMv8 cores in mobile here's a grand overview of the most relevant SoCs we've tested:"
Missing comma:
"Again, to have a wider range of performance comparison across ARMv8 cores in mobile here's a grand overview of the most relevant SoCs we've tested:"
giallo - Monday, June 17, 2019 - link
how much did they pay you to write this bullshit? you must be true downstheblitz707 - Monday, August 19, 2019 - link
i discovered something about display brightness on oleds recently. I did a test with a7 with auto brightness on.Lets assume, on a slightly dark room you set your brightness to 25nits(whites), so when you go out to the sun phone boosts around 750-800 nits.
Now lets assume on a slightly dark room you set your brightness to 250 nits, now when you go out to the sun phone boosts to 900nits. (what i actually did was not go in a dark room but while i was outside i covered the sensor with my hand so it thought i was in a dim place)
I used to assume everytime you go out to sun it would get maxed but apparently it still depends on what you set your phone before.(dumb a bit if you ask me, cuz you know, its THE sun, brightest thing..) I believe this might be the reason why you didnt reach to 100APL 1200nits.
P.s. I know every brightness sensor is different but i had tested lg on full white and i had gotten 1050 lux, i also tested s10 or plus, all white and i had gotten 1120lux on white,100APL.(It was painfully hard to find the sensor to shine the flashlight, its somewhere around upper part of the phone under the display).
It would be cool if you retested the brightness in this way:
1- After you put auto brightness on, Go in a very dark room or cover the sensor, so phone put itself to a dark brightness, after that happens, set the brigthness to max while you are still in the dark room.(auto is still on).
2- Now go under sun or shine a phone flashlight to sensor and test the brightness on white APL100. That would be really nice.
theblitz707 - Monday, August 19, 2019 - link
lg is g7 on boosted, forgot to mention