Our in-depth take a look at the variations between the US and International variations of the Samsung Galaxy S21 Ultra is slowly turning into a daily editorial sequence.
Today, in yet one more version of the Qualcomm Snapdragon 888 vs. Exynos 2100, we’re taking a more in-depth take a look at sustained chipset performance and thermal throttling.
As standard – 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 standard, we dig in to seek out any potential variations between the 2 variations. In different phrases, is yet one more 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 help||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 help||Max show res: 4096 x 2160, Video seize: 8K@30fps, 4K@120fps; playbak: 8K@60fps||Max show res: 3840 x 2160, Video seize: 8K@30fps, 4K@120fps; playbak: 8K@60fps|
|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 an identical Galaxy S21 Ultra unit, we then moved on to match general battery endurance. In each situations, the information 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 complete 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, the truth is, 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 evaluation, and we ran the very same set of exams on them, with the very same decision settings – QHD and adaptive refresh fee set to Auto.
CPU Throttling test on the Exynos 2100 Galaxy S21 Ultra
CPU Throttling test
CPU Throttling test is a good app to kick issues off with. Just a few vital notes are so as, although. What we try to attain right here is put the very best doable pressure on the chipset. This is greatest achieved by hitting it with a prolonged, artificial multi-core load. We have seemed into the matter in-depth up to now and CPU cores stay the only most important warmth supply in a chipset, with the GPU hardly contributing compared. Since sustained performance in a passively-cooled smartphone system relies upon pretty-much totally on thermal administration, warmth build-up and thermal headroom, we have to torture the CPU to get any usable information. It is vital to notice, nonetheless, that this isn’t a sensible real-world load. Even essentially the most difficult, most demanding Android video games round will not be hitting all the CPU cores abruptly. Hence, the numbers on the graphs must be taken as absolute worst-case situations.
CPU Throttling test on the Snapdragon 888 Galaxy S21 Ultra
Let’s sum-up the numbers seen through the length of the test, as seen within the screenshots above.
For the Snapdragon 888 unit, we bought 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 a better 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 completely different method to their performance curve, possible right down to some CPU governor tuning. The Snapdragon 888 unit seems to be attempting to maintain larger 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 regularly. Typically, we would like the latter since it’s much less more likely to trigger sudden stutters. However, there’s additionally one other manner of taking a look at this – the Exynos chip can maintain its peak performance for much shorter durations and is compelled to start out ramping-down attributable to thermal constraints earlier. Also, that sudden dip, marked with pink on the chart, adopted by a sudden ramp again up is the worst-case state of affairs for stutters.
Overall, so far as the CPU Throttling test app is worried, it looks as if the Exynos is struggling fairly a bit greater than its Snapdragon counterpart whereas additionally sustaining barely decrease scores general. We wouldn’t learn an excessive amount of into the precise performance numbers on this particular case as each chips are comparable in brief “bursty” masses. Those sorts of masses are way more more likely to happen in real-life as nicely.
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 illustration of the sustained habits 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 vital side when analyzing as we speak’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 verify, 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 an identical in habits. 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 stunned to see the Mali-G78 MP14 with a notable, or no less than measurable lead as an alternative.
As issues presently 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 notably its personal chipsets. If nothing else, we will in all probability 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, nicely, the rating appears to be in Qualcomm’s favor general. Especially in case you plan on having prolonged gaming periods 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 may confidently seize whichever variant is offered in your nation with none worry of lacking out.