Our in-depth have a look at the variations between the US and International variations of the Samsung Galaxy S21 Ultra is slowly turning into a daily editorial collection.
Today, in one more version of the Qualcomm Snapdragon 888 vs. Exynos 2100, we’re taking a better have a look at sustained chipset performance and thermal throttling.
As typical – for context – Samsung has been releasing two variations of its premium smartphones – one with a Qualcomm chipset and one other one with its personal Exynos chips. So, as typical, we dig in to seek out any potential variations between the 2 variations. In different phrases, is another superior than the opposite?
|Chipset||Samsung Exynos 2100||Qualcomm Snapdragon 888|
|CPU||1x 2.9 GHz – Cortex-X1, 3x 2.8 GHz – Cortex-A78, 4x 2.2 GHz – Cortex-A55||1x 2.84 GHz – Kryo 680 Prime (Cortex-X1), 3x 2.42 GHz – Kryo 680 Gold (Cortex-A78), 4x 1.8 GHz – Kryo 680 Silver (Cortex-A55)|
|Manufacturing node||5nm EUV||5nm|
|GPU||Mali-G78 MP14 (14 cores) (Vulkan 1.1, OpenCL 2.0, DirectX 12)||Adreno 660 (Vulkan 1.1, OpenCL 2.0, DirectX 12)|
|Memory assist||LPDDR5, 3200 MHz, max 50 Gbit/s, max dimension 16GB||LPDDR5, 3200 MHz, max 50 Gbit/s, max dimension 16GB|
|Storage||UFS 3.1||UFS 3.0, UFS 3.1|
|Multimedia assist||Max show res: 4096 x 2160, Video seize: [email protected], [email protected]; playbak: [email protected]||Max show res: 3840 x 2160, Video seize: [email protected], [email protected]; playbak: [email protected]|
|Neural processor (NPU)||Triple-core NPU (as much as 26 TOPS)||Hexagon 780 26 TOPS|
|Modem||LTE Cat. 24, as much as 3000 Mbps down, 422 Mbps up; 5G SA/NSA/Sub6/mmWave, as much as 7.35 Gbps down, 3.67 Gbps up||LTE Cat. 22, as much as 2500 Mbps down, 316 Mbps up; 5G SA/NSA/Sub6/mmWave, as much as 7.5 Gbps down, 3 Gbps up|
After initially exploring the distinction in benchmark performance between the 2 chips inside an in any other case similar Galaxy S21 Ultra unit, we then moved on to check total battery endurance. In each cases, the info was fairly constant and led to the conclusion that the 2 S21 Ultra variants carry out very equally.
Of course, this was by no means going to be the total story. There is at all times loads of finer element to research. Even so, most of your actually passionate feedback on the matter saved circling again to the matters of thermal throttling and sustained performance within the ongoing debate on which is the superior chip. So a lot so, in reality, that we thought it deserves some further analysis on our half.
Just like earlier than, we took our US Snapdragon 888 S21 Ultra unit and the EU Exynos 2100 mannequin that we used for our in-depth review, and we ran the very same set of exams on them, with the very same decision settings – QHD and adaptive refresh price set to Auto.
CPU Throttling test
CPU Throttling test is a superb app to kick issues off with. A number of necessary notes are so as, although. What we try to realize right here is put the very best doable pressure on the chipset. This is finest achieved by hitting it with a prolonged, artificial multi-core load. We have regarded into the matter in-depth up to now and CPU cores stay the one most vital warmth supply in a chipset, with the GPU hardly contributing compared. Since sustained performance in a passively-cooled smartphone system relies upon pretty-much solely on thermal administration, warmth build-up and thermal headroom, we have to torture the CPU to get any usable knowledge. It is necessary to notice, nevertheless, that this isn’t a sensible real-world load. Even essentially the most difficult, most demanding Android video games round will not be hitting the entire CPU cores suddenly. Hence, the numbers on the graphs needs to be taken as absolute worst-case situations.
Let’s sum-up the numbers seen throughout the length of the test, as seen within the screenshots above.
For the Snapdragon 888 unit, we received max, common and min performance figures of 250,353 / 210,296 / 192,271 respectively, which works out to 77% retained performance over the test length of 1 hour.
|CPU Throttling test scores||MAX||MIN||AVERAGE||RETAINED PERFORMANCE AFTER 60 MIN|
|Galaxy S21 Ultra (Snapdragon 888)||250,353||210,296||192,271||77%|
|Galaxy S21 Ultra (Exynos 2100)||244,339||195,471||137,807||56%|
Conversely, the Exynos 2100 managed: 244,339 / 195,471 / 137,807, which works out to 56% retained performance. That’s a considerable distinction.
The Snapdragon 888 contained in the Galaxy S21 Ultra maintains the next and extra secure sustained CPU performance underneath extended artificial max load by the CPU Throttling test, in comparison with the Exynos 2100 mannequin.
Looking on the graphs themselves, we will not assist however discover that the 2 variants appear to take a barely totally different method to their performance curve, doubtless all the way down to some CPU governor tuning. The Snapdragon 888 unit seems to be attempting to maintain greater common performance for so long as doable, adopted by a noticeable, steep drop-off level. In comparability, the Exynos 2100 appears to ramp-down a lot more-gracefully and step by step. Typically, we would like the latter since it’s much less more likely to trigger sudden stutters. However, there’s additionally one other means of taking a look at this – the Exynos chip can maintain its peak performance for a lot shorter durations and is pressured to start out ramping-down as a consequence of thermal constraints earlier. Also, that sudden dip, marked with pink on the chart, adopted by a sudden ramp again up is the worst-case situation for stutters.
Overall, so far as the CPU Throttling test app is anxious, it looks like the Exynos is struggling fairly a bit greater than its Snapdragon counterpart whereas additionally sustaining barely decrease scores total. We wouldn’t learn an excessive amount of into the particular performance numbers on this particular case as each chips are comparable briefly “bursty” hundreds. Those sorts of hundreds are way more more likely to happen in real-life as effectively.
Consecutive Antutu runs
For our subsequent set of exams, we needed one thing extra compound, so we turned to AnTuTu and elected to do 5 consecutive runs on every unit. We discovered that to be a superb illustration of the sustained conduct of every chip. Again, we would not fixate an excessive amount of on the actual numbers since we all know that the Snapdragon 888 and Exynos 2100 can rating fairly shut to one another in AnTuTu.
A extra necessary facet when analyzing at this time’s test is the quantity of performance the Exynos loses over time, in comparison with the a lot better-sustained curve on the Snapdragon. Qualcomm’s chip even began to settle in and regain some floor for the ultimate run. Fascinating stuff.
Finally, we additionally needed to do our greatest to emphasize the telephones with a extra GPU-centric workload, each out of curiosity and as a partial sanity test, to see if our ongoing idea that throttling is generally CPU-bound nonetheless checks out.
Indeed, we ended up with two much-tighter traces, practically similar in conduct. Just like in our earlier benchmark comparisons, we see that, no less than initially, 3DMark’s Vulkan test seems to favor the Mali-G78 MP14 GPU contained in the Exynos 2100 over the Adreno 660 contained in the Snapdragon 888.
The tides then rapidly flip in Qualcomm’s favor as warmth builds up and thermal throttling settles in. In a theoretical parallel setup, the place the Exynos has higher CPU core thermal administration, we would not be shocked to see the Mali-G78 MP14 with a notable, or no less than measurable lead as a substitute.
As issues at the moment stand, although, in a extra GPU-heavy workload scenario, each the Snapdragon 888 and the Exynos 2100 variations of the Galaxy S21 Ultra stay very, very comparable when it comes to performance.
What’s the takeaway then? Well, on the finish of the day, this complete debate continues to be a purely educational one, held out of curiosity, since in sensible phrases, we nonetheless keep that the 2 chips, as discovered within the two variants of the Samsung Galaxy S21 Ultra, ship a really comparable expertise. Definitely rather more so than we have seen with a few of Samsung’s earlier flagship generations and significantly its personal chipsets. If nothing else, we are able to most likely all safely agree that the Exynos 2100 constitutes an enormous and marked enchancment over final yr’s Exynos 990.
As for declaring one chip or the opposite the last word victor right here, effectively, the rating appears to be in Qualcomm’s favor total. Especially in case you plan on having prolonged gaming classes in your Galaxy or simply really feel like calculating Pi in your spare time. Though as soon as once more, the sensible hole in performance is not all that huge, and you possibly can confidently seize whichever variant is on the market in your nation with none concern of lacking out.