Snapdragon 865 specs leak Comments
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AnonD-896997, 11 Nov 2019Soonâ„¢ we will be seeing phones getting past 3.0 GHz at this point, it seems they ... moreNope. We likely won't see the phones going beyond 3GHz because that frequency is very close to the most efficient point on the voltage frequency curve. Anything beyond 3GHz nets you smaller performance/watt than lower frequencies. Meaning for example 3.5GHz will use significantly more total energy for a task. 2.5 and 3GHz processor will use roughly the same total energy as at that point the voltage frequency curve is almost a straight line but 3.5GHz will use more energy.
Note that energy is power (watts) x time (seconds). 3GHz CPU finishes task faster than 2.5GHz meaning time is smaller but uses more instantaneous power. But the total energy consumed is the same for 2.5GHz and 3GHz. For example 2.5GHz takes 2 seconds and uses 2 watts for a total of 4 joules of energy. 3GHz is 1.2x faster so it completes the task in just 1.67 seconds and uses 2.4W of power (since the voltage frequency curve has a slope close to zero at this point) for a total of also 4 joules. 3.5GHz is 1.4x faster than 2.5GHz meaning it will complete the task in just 1.43 seconds BUT as the voltage frequency curve at this point starts to become exponential it will consume more than 1.4x more power for example it will use 1.8x more power. In that case it will use a total of 5.15 joules of total energy meaning that at 3.5GHz CPU is less efficient than at 2.5GHz and 3GHz.
Unless the new process node moves the point of highest efficiency on the voltage frequency curve beyond 3GHz we won't see mobile devices having higher than 3GHz frequencies because it's simply inefficient. And efficiency is important on devices that run on a battery. Unless Qualcomm implements something like Turbo frequency which is boosting to higher frequencies for a very small period of time to accelerate burst loads. This is what Intel does on its CPUs for example. Due to its nature such boosting can sometimes even be detrimental to performance in places like servers where Xeons have the Turbo disabled depending on the workload.
- ProJames-CHM
- IBL
SpiritWolf, 11 Nov 2019But signal can't penetrate buildings, woods, etc. Am i right?No, that's mmWave. Mmwave is for high density areas. Sub 6GHz will have no problem (but while using 1GHz or lower. They're auctioning 600Mhz at some countries)
- SpiritWolf
- Sbn
ProJames-CHM, 11 Nov 20195G Sub-6GHz. Higher range, makes it cheaper to provide decent service.But signal can't penetrate buildings, woods, etc. Am i right?
- ProJames-CHM
- IBL
SpiritWolf, 11 Nov 2019 I really wonder, how would 5G network in rural areas seem. Celltower per square?5G Sub-6GHz. Higher range, makes it cheaper to provide decent service.
- SpiritWolf
- Sbn
ProJames-CHM, 11 Nov 2019Why faster LTE? Surely no carrier today would invest in faster LTE networks and would be dedic... more I really wonder, how would 5G network in rural areas seem. Celltower per square?
- Anonymous
- ptk
T M, 11 Nov 2019Agreed, we have gotten to the point that these flagship processors are overkill now. Battery s... moreOverkill in smartphone chipsets?
CPU-wise, yes. They are pretty much powerful. In CPU benchmarks, they can even match up with Ryzen 5 3550H.
But, GPU-wise, A BIG NO! Snapdragon, Exynos, Kirin, they all need sooooo much improvements in this regard.
Qualcomm and others should focus less on the CPU. Cause it's not the thing that sucks... the GPU does!
- Anonymous
- PtZ
i know CPU performance is not only related to clock frequency, but will we still have cores with less than 2.0 ghz? and only a "fastest" core with still less than 3.0 ghz? and probably flagships having this SoC will cost more than $1100, phones become worse everyday, no new cool features and the same garbage year to year
- Anonymous
- ptk
But honestly, I was expecting an upgrade like this.
So if you want a BIG upgrade, you should wait for Qualcomm's 5nm chipset, the currently called SD875. It will be better than A13. Even in benchmarks.
- ProJames-CHM
- IBL
The last Oracle, 11 Nov 2019Not very radical design departure from the Snapdragon855. Hopefully with better ISPs, DSP, ... moreWhy faster LTE? Surely no carrier today would invest in faster LTE networks and would be dedicating their engineers and money to build 5G SA networks, or extending their current LTE networks to rural areas where they never build faster networks anyway.
- g6 user
- LEi
End, 11 Nov 2019Fake! Octa-core (1x2.96 GHz Kryo 485 & 3x2.42 GHz Kryo 485 & 4x1.8 GHz Kryo 485)
GPU ... morewhen you use a smaller / better constructed soc it can deliver more power or lest consumption using less GHZ.... it is like having less cores but more power
sd810 vs 820 to say something
- T M
- IbE
KebabSLO, 11 Nov 2019Performance ? Why do they keep working on performance ? It's good enough with 855, we need BA... moreAgreed, we have gotten to the point that these flagship processors are overkill now. Battery should be the main focus.
- shoot 4K@120 videos?
- 03S
Samsung's exynos could (theoretically) do 4k@120 even 2 years ago!
this wasn't enabled just in order to level it with the snapdragon versions of the s9/s10.
And my guess is that the 865 wouldn't be able to do it either.
even 4k@60 it barely does (not all models enable this).
so we'll have to wait for the 875 at 2021...
today with 120hz screens - smartphones (rog2, and 2020 iphone/galaxy/oneplus) or LG oled TVs, there is a use for 4K@120 video shooting!
- ProJames-CHM
- IBL
Can't they just make a SD866AB? My Tab S6 is super fast and I don't need it to be any faster (and I doubt anyone really does) but we could all use enhanced battery efficiency.
- SpiritWolf
- Sbn
Nick, 11 Nov 2019Incremental 855. Qualcomm is not even trying to get the fight to Apple.Um. Why should they? Benchmarks aren't all you know. In real life, iphones tend to be slower than snapdragon androids. Plenty of videos in Youtube. Not that i defend Spydroid, i hate them both. Just facts.
- no next-gen adreno?!
- 03S
using adreno 6XX for the third year in a row!
up until now, qualcomm had brought a new gen of adreno every 2 years.
guess they are waiting for 5nm (at snapdragon 875).
- TheWanderer
- XLE
Devil , 11 Nov 2019Greedy Qualcomm skimp on 5G modem, lack of competition on mobile SoC market hurts us customers... moreYou can thank samsung and mediatek for being poor competitors
- TheWanderer
- XLE
AnonD-896997, 11 Nov 2019Soonâ„¢ we will be seeing phones getting past 3.0 GHz at this point, it seems they ... moreLay off the drugs. There's no such thing as fast enough
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