crazy... where's 631 / 632 / 633 / 634 ... are they trying to teach numbers to everyone... crazy marketing gimik...companies have done well have to say... they have replaced 650 with 625... and at the same cost... good profits...
AnonD-664474, 05 May 2017SD630 and SD635 Next year is SD640 and SD645 The year after next year is SD650 and SD655 - S... moreI there is one thing Qualcomm Snapdragon is known for, it is their poor naming convention. They rarely stick to a pattern and keep flip-flopping. Many of their chipsets get renamed often.
Anonymous, 05 May 2017A53 is fast and efficient. A35 is only efficient and you can compare it only to A7. Helio x30 ... moreA35 is 80-100% of the performance of A53 depending on workload, however A35 is 25% smaller, 32% lower power and 25% more efficient. What that means is that in general it's better to implement A35 than A53. You can clock the A35 higher to offset the deficit but it's only in some workloads that A35 is slower, so the gains are higher than the losses. A35 is newer and have many improvements that A53 doesn't have.
While cores only take up a little space on die (especially the efficiency cores), any space saved can potentially reduce production cost by reducing die size.
The only reason I can come up with for not implementing A35 cores instead of A53 is the cost associated with implementing and reworking your SoC design although I do believe the long term gain is worth it.
I expect to see an A53 successor announced before the end of the year. It'll take at least a year from that announcement before we'll actually see it in use.
As for why we see a faster cadence in the performance core development is that it's usually what allows for pretty graphs and performance is more attractive to the average consumer than power savings (similar reason they make thinner phones instead of giving you a large battery).
I hope is not just higher clocks.. I see no point in anything above 2ghz for 630. I wish for new NN process.
Here's Qualcomm's mindset:
Low-end = QSD 430 = Slow architecture (A53) + (28nm) Last-gen lithography
Middle tier = QSD 625 = Slow architecture (A53) + (14nm) Best lithography
Mid range = QSD 650 = Fast architecture (A72) + (28nm) Last-gen lithography
Flagship = QSD 820 = Fast architecture (A72*Kryo) + (14nm) Best lithography
Low = QSD 630 = 14nm = ~2GHz Quad A53
Mid = QSD 637 = 10nm = ~1.6GHz Quad A53 + ~2.5GHz Quad A53
Middle = QSD 660 = 14nm = ~1.6GHz Quad A53 + ~1.9GHz Quad A73
Flagship = QSD 835 = 10nm = ~1.9GHz Quad A53 + ~2.5GHz Quad A73
(just slightly updated antennae, dsp, and gpu)
*Kyro280 is a slightly customised ARM Cortex A53 efficiency core
*Kyro280 is a slightly customised ARM Cortex A73 performance core
If Xiaomi mi max comes with sd 660 & redmi note 4 design, it'll sell like hot cakes. My mind & wallet is ready.☺
65x was too hot for real world usage and needed some serious software tuning to stay efficient. 66x just needs to stay away from power race as raw CPU power is already more than enough for most tasks and games are mostly GPU bound and need only high bandwidth and thermal headroom for stable GPU frequency.
Similar to what in the previous article regarding the SD660, etc. Yeah it is a general good news, and mostly for the affordable mid-range and slightly more, segment of phones.
AnonD-596087, 05 May 2017I am just a bit puzzled on why we still don't have successor for Cortex A53. I mean Cortex A53... moreA53 is fast and efficient. A35 is only efficient and you can compare it only to A7. Helio x30 will have these special cores for energy saving.
Modest Mind, 05 May 2017Numbers, right?! Who cares what Qualcomm names their CPU-s as löong as price and performa... moreOkay then, just goodluck trying to differentiate each processors from each other when Qualcumm *comm* reaches to that stage
I am just a bit puzzled on why we still don't have successor for Cortex A53. I mean Cortex A53 and A57 were unveiled 3 years ago. Since then A57 received 2 successors in A72 and A73. But A53 still don't have any updates....
And whatever happened to A35? It was supposed to be the most efficient but we still haven't seen it in any popular processors..
AnonD-664474, 05 May 2017SD630 and SD635 Next year is SD640 and SD645 The year after next year is SD650 and SD655 - S... moreNumbers, right?! Who cares what Qualcomm names their CPU-s as löong as price and performance is right! :-)
Interesting. A die shrink to 10nm of the SD625 might be one. A wild, unlikely guess could be a die shrink of the SD820. The CPU of smartphone SoC might be slowing down due to good enough performance.
I predict they will follow the previous trend in x86 CPU world through the tick, tock cadence of Intel.