yashsingh1/xdaforums huggingface dataset:
[General Questions and Answers] stephen2282:
lol I'm just giving a very general advice. By that time quad core A15 is gonna be out too. So to play on the safe side its always btr to get a quad core I assume. Well hope that the apps r optimized to work well on quad-cores by that time too.

Yeah question should be more specific, give us information like ur daily usage or factors u concern bout... Answerers wont be too confused by then :cool:
[General Questions and Answers] sreza:
One need only look at the pc market to see how likely developers are to optimize their apps for little to no benefit across the majority of devices. Quad-cores are just frivolous in every way save HD gaming.
[General Questions and Answers] sanke1:
I would rather take faster dual core than slower quad
[General Questions and Answers] Xtr3meTM:
Good afternoon, how are you?

I think a dual core is better. Why? It is very easy. Currently I do not take advantage or the dual core, to throw a quad core.

Also the battery consumption is very important because the phones we have today, it is very hard to face the day of autonomy.

I have this day, would go to a dual core, when later in the field of development and optimization would go for a quad core.

Greetings from Spain!

Xtr3meTM
[General Questions and Answers] ray3andrei:
T3 has a lot of power... useless power.. that's why the krait s4 is better.. and if I think it out. The s4 doesn't use all of its power either... tegra 3 is messy, the s4 gives me a safer feel.. I don't know why :P

Sent from my Samsung GNexus <3
[General Questions and Answers] jaebird:
I'll take quad core if they can turn off or throttle back cores independently. Otherwise, dual core and big battery. I want decent uptime at this point.
[General Questions and Answers] Felimenta97:
I don't want to discuss, but I am curious, what would be better?

Chipset	Qualcomm MSM8260A Snapdragon

CPU	Dual-core 1.5 GHz Krait

GPU	Adreno 225

OR

Chipset	Nvidia Tegra 3 T33

CPU	Quad-core 1.6 GHz Cortex-A9

GPU	ULP GeForce

The new Asus Transformer Infinity will have a variation for both. Which one would have a better performance? Or we will have to wait benchmarks for both versions?
[General Questions and Answers] I Am Marino:
The Snapdragon might still be better, just wait for benchmarks.
[General Questions and Answers] sreza:
The Android environment prevents Tegra 3 from reaching the performance that benchmarks claim it can do. I think the best evidence is that the more expensive model that has LTE runs the Krait, while the wifi only model is relegated to Tegra 3. The Padfone runs on Krait as well.

Tegra 3 will show better benchmarks, but Krait will give better end-user performance.
[General Questions and Answers] Skazer:
Now, quad cores can adjust the amount of power being used by all the cores. I think that it's better to get a quad core, then you can upgrade to the new rendition of android that supports quad core optimization.
[General Questions and Answers] MobileAge84:
I've red a lot about Tegra 3 as a platform (chipset+CPU+GPU) but little specifications on the GPU side still identified as GeForce ULP. Did nvidia upgrade the GPU specs over the one present on Tegra 2?
[General Questions and Answers] Manvindar:
micromax funbook

Micromax funbook

is this good for the price tag???

Operating System-Android 4.0.3 Ice Cream Sandwich

Processor -1.2 GHz Cortex A8

Video Processor -Dual Mali 400 2D/3D

Sensor -Gravity Sensor and Accelerometer

Connectivity -Wi-Fii( 802.11 b/g)

Screen Size -7″ inch.

Screen Resolution -800×480, 16:9

Screen Type -Touch Screen Capacitive Multi Touch

Internal Memory-4 GB

Random Access Memory (RAM)-512 MB DDR3

Expandable Memory -Upto 32 Gb with SD card slot

USP support -Only Micro USB

Audio support -3.5 mm jack

File extension Supported -Almost every available extension supported

Weight -350 Grams

Dimensions -Height 192 mmWidth 122 mmThickness 10 mm

SIM Card Slot -Not Present

Phone Support -Not present

Price	INR 6500 /-

http://www.fonearena.com/blog/48289/hands-on-micromax-funbook-tablet.html
[General Questions and Answers] pshadoww:
I think benchmark will tell you which is better. Just wait for reviews :p
[General Questions and Answers] tsleng:
Nokia 1100 :D
[General Questions and Answers] ArmorD:
I'm not an expert in computer science, so I'm not gonna be a part of this quad vs dual fight.

But I think manufactures are ignoring one very major feature in smartphones, battery life. They're just going away from it in every device they make.

Today manufacturers are trying the make it slimmer and more powerful, and every time they do so, the battery life becomes shorter.

So before they're inventing technologies for more powerful processors, they should try to invent technologies for less power consuming processors.

E. I hate you SwiftKey :mad:

Sent from LT18i @ Xda Premium
[General Questions and Answers] sreza:
Tegra 3 does not have dynamic voltage, so no, it can't adjust the amount of power being supplied to each core. They are either 100% on or 100% off. If you're talking about splitting the task between the cores to fractionalize the clock speed necessary to complete a task (called "multi-threading"), that requires that the apps be optimized for quad-core. Android is optimized for any more cores than 1 as of the release of ICS, but the apps are not.

And there are very good economic reasons why developers won't want to update their apps with multi-threading capability, read my other posts.
[General Questions and Answers] c5satellite2:
S4 KRAIT. I have TP tegra3 and it is a great tablet, but for a handset S4 will be faster, better on battery, and from initial testing it looks like the graphics will be better than tegra 3.

2 much faster cores will beat 4 slower cores in a handset. Hard to leverage the 4 cores properly with the current system bus/android design.

Dual core s4 krait
[General Questions and Answers] Skazer:
Well then, I think that you just beat everyone silly with your facts! Good job sir
[General Questions and Answers] red12355:
Proof? I have never heard that Tegra 3 cores are either 100% on or off. As the Anandtech review shows, the cores can run at different frequecies other than the full speed and 0.
[General Questions and Answers] sreza:
We're talking about 2 different things here. When you adjust your processor with a custom kernel, you overclock it right? But there's another thing you do, it's called undervolting. You overclock a CPU to make it run faster and you undervolt it so it uses less battery power

The power a CPU uses is based on 3 things, the build architecture, the clock speed, and the voltage.

All processors adjust their clock speed to the task at hand, which is what you read about. But Krait can also dynamically adjust its voltage too. This is where the efficiency is increased. It doesn't matter if a Tegra core is reading a pdf file or watching a 1080p movie, it'll use the full voltage regardless.

For the third thing, build architecture, Tegra 3 is built at 40nm while Krait is built at 28nm. This means that Krait has at least an additional 40% reduction in power consumption compared to Tegra 3 across the board. It's just part of the hardware.
[General Questions and Answers] The Janitor Mop:
The first package that will get me excited since my last big interest period in phones will be a dual core A15 combined with a great GPU. I couldn't care less about what a chip is capable of, I care about real world use and from my experience A8 vs. A9 makes a big difference, and so I'm confident A15 devices will be similarly faster and smoother than A9 devices. The GPU is also critical in my experience, so in my eyes the thing to be excited about is something like the upcoming exynos, not a A9 device with a lackluster GPU (Tegra 3 devices).
[General Questions and Answers] Felimenta97:
So, in the end S4 Krait will be better than Tegra 3 with a tablet? Just to see if I got everything.
[General Questions and Answers] sreza:
Without a doubt, yes.
[General Questions and Answers] Felimenta97:
OK. Thanks for all the info, you and every one else that helped me getting this.
[General Questions and Answers] red12355:
But you said 100% on or 100% off. As the link shows, that is not the case. Putting that aside...

From Anandtech: "Balanced is the default setting and it drops maximum CPU clock to 1.2GHz and favors lower clock/voltage targets on the curve compared to Normal mode."

This clearly shows that Tegra 3 has more than 2 voltages as you are describing.

Again, proof? Power consumption also depends on the architecture, not just the process. An example of this would be how Intel's 32nm sandy bridge chips use less power than AMD's bulldozer chips. Also, there's more than just the nm process. 28nm SOI will have different power consumption than 28nm bulk, lp, etc.
[General Questions and Answers] Skazer:
Thank you. I know for a fact Intel processors have dynamic voltage control or frequency scaling according to how much / how little they are being used. I would have thought that the same applies to current generation processors in cellular devices
[General Questions and Answers] vetvito:
The core circus, it feels like the PC wars again.

https://www.youtube.com/watch?v=lDe7ynFPoMY&feature=youtube_gdata_player

Hopefully that clears some of this up.
[General Questions and Answers] sreza:
Wow! I made almost the exact same arguments and analogies, and I've never seen that video before. It's almost creepy, lol.
[General Questions and Answers] enigma00:
What he should have said is that the Krait can asynchronously vary the clock speed of each core depending on the workload, whereas the other SoC's (including the Tegra3) typically have to clock all the cores at the same frequency.

This results in much lower battery consumption as the multiple core rarely have an equal amount of work to do.

The gimmicky 4+1 (the latter being the LP transistor-based) isn't a very elegant solution. Anyone can slap another core (at the expense of footprint and manufacturing cost), not not everyone can do what the Krait does for power control.

I'll take the two cores of a much more advanced architecture (Cortex A15 equivalent in 28nm process) over the two cores of an ancient architecture any day of the week.

I am praying that the next Nexus device will be based on the Krait S4 Pro.

---------- Post added at 01:44 AM ---------- Previous post was at 01:39 AM ----------

Did you just copy & past a marketing literature from NVidia?

Sure they are the first one to commercialize quad-core devices. They were also the first to commercialize dual-core devices as well. But their execution and design leave A LOT to be desired. NVidia is a company that puts more emphasis on marketing (i.e. first to commercialize this and that), but they come short on actual results.
[General Questions and Answers] Typhoon20:
I understand wanting to game on the go but honestly don't. You can still play games albeit not in that quality but overall you'll realise it isn't worth it.
[General Questions and Answers] MobileAge84:
Gaming should better if external controls can be possible to use, but a powerful GPU would also be required for better video playbacks without always converting to the most efficient format.
[General Questions and Answers] vetvito:
^ you know we have HDMI out and can connect gaming controllers.
[General Questions and Answers] Nit3m4re:
Has it been confirmed anywhere reasonably reliable that the SIII will even be based on A15? I only ask because a Quad Core A9 Exynos in the SIII would surely get the same treatment as Tegra 3? Otherwise I think it's hard to get excited about anything coming out this year really, as what other phone is there to get? Certainly not the One X after the beat down Tegra 3 has had here which to be fair, it kind of deserves.. but the One S doesn't have the screen I want and is the S4 One X even going to be available in Europe?
[General Questions and Answers] sreza:
Unfortunately, we have no clue. Not even if it'll even be called the SIII. And the HTC One XL will be america only. I suggest you take a good look at the Asus Padfone. It's screen is average but it represents the future of convergent technology.

---------- Post added at 07:44 PM ---------- Previous post was at 07:29 PM ----------

I suggest taking a look at Project Fiona.

http://www.geek.com/articles/games/...plays-skyrim-on-ultra-high-settings-20120113/

Razer has stated that it will retail for less than 1000 USD. We're looking at a 3rd gen i7 core, a GTX 600+ GPU, and the capability to play -any- game that will run on a windows pc with similar specs.
[General Questions and Answers] :
Whatever Samsung uses in galaxy s3 shall decide on dual core or quad core fate as Samsung is one of the biggest players. If they use quad then HTC and.samsung are so.that makes multicore apps more likely. Just.hold out till then.
[General Questions and Answers] elnovato:
Quad FTW

Battery life will get there
[General Questions and Answers] red12355:
But it doesn't. As the review I linked shows, individual cores can be gated off.

See above. Also, since there's no 40nm A9 quad with asymmetric clock speeds, there's no way to compare which implementation is superior (in terms of power consumption) over the other.

Chip design is all about tradeoffs (power consumption vs die size, performance vs die size, etc). Nvidia certainly has the funds and the manpower to implement asymmetric clocks, they just didn't because their R&D team decided that 4+1 is a more viable choice. I'm not sure what you mean by elegant. Like pretty much all engineering, you have to design the best product that meets certain constraints... In that sense the best solution is the most elegant one. ARM supports 4+1 (they call it big.LITTLE), so obviously there is some merit behind that type of implementation.

I'm pretty sure if a company had the resources to design a SoC and implement 4+1, they would also be able to do asymmetric frequencies. I can guarantee you that Krait's power control system comes at the expense of die size as well. Again, it's all about balancing tradeoffs.
[General Questions and Answers] enigma00:
Samsung has been very tight-lipped about the upcoming SIII, and I suspect no one (outside Samsung) knows what will be the final choice of SoC.

If we assume that Samsung goes with an Exynos processor, it has to be one of the two:

- Exynos 5250 (Dual-core Cortex A15 - 32nm)

- Exynos 4412 (Quad-core Cortex A9 - 32nm)

Samsung is rumored to have the Exynos 5250 ready for production in the Q2 of 2012 (as in anytime now), I wouldn't be surprised if Samsung chose to go with the dual-core A15 since they publicly announced that they'll focus more on battery consumption.

However, this is an educated guess, but still very much a speculation.

Also, I think there isn't going to be one single version of the SIII. Just like the SII, I'd venture to guess that there will be multiple versions (e.g. like what HTC is doing with the One X and the One XL). So, it's entirely possible that a US variant of the SIII could get the Krait S4 + LTE.

I don't follow this logic. Let's say that the SIII launches with the Exynos 4412. Are you saying the dual-core market is dead?

How long has it been since the desktop CPUs have gone the multi-core route? To this date, there aren't many PC apps that fully utilize the multi-cores.

Please do enlighten us how it will get "there"?

Being gated off is MUCH different than asynchronously clocking each core. Power gating is used to shut off power to parts (in this case the 4 cores or the bonus core) while not in use. Once in use, all the cores will be clocked at the same frequency.

So, what was your point? I am not denying that the 4 cores can be shut off while not in use (or the bonus core while not in use).

Just because everyone is doing it doesn't mean it's a good solution or elegant. As to why Nvidia went with the extra low-power core, we can only speculate why they chose it, but we can make an educated guess that Nvidia rushed it to claim the "first quad-core" title the same way they rushed the dual-core solution.

When you can achieve the same or better results with less, I would call it an elegant solution over the more brute force counterpart.

When you have a multi-core SoC that can clock each core asynchronously, you don't need the extra companion (or little) core to run to save power in a low computational state.

You make a lot of assumptions and guarantees with nothing to back up your claims. The 4+1 is much easier/faster solution to implementation. Please do enlighten me with a technical white paper to back up your claim that the Krait has a bigger die size than it would have if went with the +1 core.
[General Questions and Answers] The Nexus Project:
Agree, quad cores wont be taken advantage of till jelly bean@the earliest

Sent from my i9250 [GSM) Galaxy Nexus
[General Questions and Answers] AlexIvasuc:
boot-up speed/antatu

left one x

right one xl

youtube.com/watch?feature=player_embedded&v=qR7zfXL_RdA
[General Questions and Answers] sreza:
Antatu is not an accurate representation of user experience. It makes full use of all available cores in a system when testing. The android environment is 99% unfriendly to multiple cores. This test is heavily biased towards the Tegra 3.
[General Questions and Answers] AlexIvasuc:
well,as far as i can tell antatu is a fair test,tegra 3 has more cores,antatu utillizes those cores=>better performance than S4,even the boot time is faster on the tegra 3 model.
[General Questions and Answers] red12355:
Here's what you originally said.

If a core is gated, then not all 4 are running at the same frequency, are they? I understand what you are saying about asynchronous clocks, I was just making a correction.

Explain why ARM is advertising it then. They didn't need to rush anything to the market. I am inclined to believe that the multi-million R&D teams of Nvidia and ARM are using a 4+1 type configuration not just because it sounds cool.

I could say the same thing to you. Where's the proof that asynchronous clocks is more efficient than big.LITTLE/4+1? You're assuming that the former can reach or surpass the power efficiency of the latter and you're assuming that the former requires less die size than the latter. This may or may not be the case, but you don't know either way.

You're just saying 4+1 is worse because it sounds intuitively "less elegant" to you. My point is that there since there is no apples-to-apples comparison, there is no way to tell which solution is better and therefore you shouldn't just write off 4+1 as worse because it sounds worse.

You just did the same thing that you're claiming I did. Proof that 4+1 is easier or faster to implement?

1. I never said Krait would have a bigger die size than it would have if it went with the +1 core.

2. Controlling multiple cores separately will always need more minimum logic (and therefore transistors) to control the individual cores. Any design with asynchronous clocks can be done with less transistors by using synchronous clocks. There's no way around it. You don't need an ECE background and you definitely don't need a white paper to understand this.

I'll say this again for emphasis:

Since there are no apples-to-apples comparisons of the two different implementations, there is no way to tell which solution is more power efficient. Therefore you shouldn't just write off 4+1 as worse because it sounds worse.
[General Questions and Answers] sreza:
Because the android platform has nearly no apps that are multi-threaded. Antatu gives a biased result towards Tegra 3 by implying greater performance than we'll see in real life usage of the platform.

---------- Post added at 05:16 AM ---------- Previous post was at 04:48 AM ----------

Look at Nvidia's white paper. You cannot have both the ninja core and a regular core on at the same time. Therefore, if you were watching a HD movie and your phone refreshed your email, updated twitter feeds, downloaded updates, etc. etc., the core doing the background work would run at the same level as the core watching the movie. That is extremely inefficient.

While on Krait, the second core can become a ninja core at will and do any tasks at any level of power necessary. It is a more elegant solution.
[General Questions and Answers] :
I think it is better to buy a quad-core phone because you will be sure that it will last more than 3 years :D whit dual core you will survive maybe from GB to ICS and next android release maybe :confused: who knows. :D
[General Questions and Answers] thamvmk:
quad core

Anyone knows any application that can utilize a quad core processor?
[General Questions and Answers] enigma00:
It's obvious to me that you do NOT understand how power gating works. It has nothing to do the frequency each core runs at. It has to do with the dormant state where the power is shut off to parts not in use.

Obviously, your argument is that if the company X and Y are doing this, it must be smart. Well... you can continue to believe in their marketing hype. You don't need me to convince you otherwise.

This back-and-forth argument with someone who doesn't understand the technology behind is fruitless. I'll stop it right here.
[General Questions and Answers] AgentCherryColla:
Next year's Tega 4 is still Quadcore(+1). ICS can only handle 4 Cores properly. There's currently no method or getting more than 5 cores into a phone.
[General Questions and Answers] MobileAge84:
The SP3X version of Tegra 4 seems will still be based on Cortex A9. How come nvidia is still using the old architecture.
[General Questions and Answers] sreza:
I know of only 1, a game that Nvidia wrote themselves to show off their shiny new processor.
[General Questions and Answers] Akatosh:
Screw that, made a post before and realised it was the same as the page before.....nevermind :P
[General Questions and Answers] whax:
IMHO - I think it'll be a wiser choice to wait for an OS that is well optimized for use with quads, and by that time probably q1 of 2013, quads would somehow be mainstream already and wouldn't cost that premium, and lots of options. If you get a dual core now, it'll probably last 1 and a half year to 2 and by then you can get yourslef a better quad core one.. just my thoughts.. These quads are kinda pricey right now..
[General Questions and Answers] jonneymendoza:
Someone posted this in another thread

interesting read. does that mean tegra 3 is crap and we should all return our One-X?
[General Questions and Answers] sreza:
Seeing as I'm the one who wrote that, I'll answer.

No, Tegra 3 is not crap. it's still a decent processor, and anyone who buys a phone that has it equipped will most likely be satisfied by its functional ability. My point in that post and the rest of the forum is that it's not the best chipset anymore. It's not a comparison between a crap chip and a good chip. It's a comparison between a decent chip and a better chip.

I feel that the chip's lifespan as "state-of-the-art" is being artificially extended due to the average consumer assuming that having more cores is equivalent with having a stronger device.

In the case of the One X... If your buying choice is between the One X and the One S alone I would actually recommend the One X solely on the reason that the screen is far superior, even if it has an inferior core. Seeing as I live in America however, if I was on Sprint I would definitely go for the One XL which has the screen of the One X and the core of the One S and a bigger battery to boot.

Of course, I actually won't get any of those phones because I want the LTE Padfone! ^_^
[General Questions and Answers] I Am Marino:
No one should be saying Tegra 3 is a bad core, there's just one that's better overall.

Any Tegra 3 phone or device will be relevant for years to come.
[General Questions and Answers] jonneymendoza:
how much better is the S4?

is the tegra 3 better then previous dual cores from galaxy nexus?
[General Questions and Answers] DroidSFT:
Dual.

I'd stick with dual right now. No need to run out and have the first quad just to find out its not doing much more for you. I just make sure i close down all that dont need to be running and my SkyRocket at 1.5 dual core does fine. Maybe i'll try a quad next year...