HardOCP News
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I'll bet this is just Samsung getting back at Apple for all the lawsuits. 
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iPhone 6s Chipgate: TSMC vs. Samsung
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thedocta45
[H]ard|Gawd
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Wasn't this known of ahead of the launch of the product?
Thing is...smaller the nodes go, the hotter chips can get so heat dissipation/thermal management must also be adapted to the smaller node size.
It would be interesting to know if the Apple engineers designed the thermal management around the larger node or the smaller.
One way to test this would be to slap on your own heatsink to a "franken-6S" and see if it will perform better than stock (battery life, etc.)
It would be interesting to know if the Apple engineers designed the thermal management around the larger node or the smaller.
One way to test this would be to slap on your own heatsink to a "franken-6S" and see if it will perform better than stock (battery life, etc.)
As a general rule when you implement the same design on a smaller node you produce less heat. Working on a smaller node allows you to make design decisions that lead to a hotter chip, but the node itself doesn't inherently do that.
The two chips won't be otherwise identical because the two processes almost certainly have different design rules, but if anything I'd bet on the samsung chips being cooler.
The two chips won't be otherwise identical because the two processes almost certainly have different design rules, but if anything I'd bet on the samsung chips being cooler.
Factum
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16nm?
14nm?
PR FUD
It's shame only Intel is sticking to their normal naming convention...and everybody else is renaming their process...even if gate and picth dosn't alter...sad, sad state of affairs
14nm?
PR FUD
It's shame only Intel is sticking to their normal naming convention...and everybody else is renaming their process...even if gate and picth dosn't alter...sad, sad state of affairs
rat
Supreme [H]ardness
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Actually, it's the other way around. Die shrinkage means less heat for the same design.
@techrat... yes die shrinkage means less heat for the same design, however MoFoQ said "hot" which is different than heat.
While you are right that smaller nanometer processes on the same design produces less heat, it also means you have a design doing the same amount of work in a much denser area. This can lead to a chip running "hotter" in terms of temperature, but produces less overall heat. (Like we have seen with haswell vs. sandybridge for example)
16nm?
14nm?
PR FUD
It's shame only Intel is sticking to their normal naming convention...and everybody else is renaming their process...even if gate and picth dosn't alter...sad, sad state of affairs
Wow thats a really cool image
rat
Supreme [H]ardness
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Not exactly comparable.
Haswell was a 'tock', an architectural redesign. The rules with Sandy and Ivy don't apply here as it's not strictly a die shrink.
Both TSMC and Samsung are fabricating the A9 at two different process node sizes. There (afaik) should be no difference in the actual mask between the two.
Yet it's the smaller Samsungs that are running hotter and using up more battery life.
There's speculation that the TSMCs might be throttling and doing less work than the Samsung, but I have yet to see anyone talk about running a test that shows which version of the phone has faster performance, unless I have missed something obvious.
Actually, it's the Samsung one that is throttling to keep the temperature in control.
There has been a lot of post regard to this issues and show that Samsung one consistently getting lower score than TSMC on benchmark.
My first 6S had Samsung chip, and it was noticeably hotter and uncomfortable to use.
Your first one? I'm still rolling with my 4S.
People always find something to flip over about. We have a 6s (sammy) and a 6s plus (tsmc) in use and I have yet to notice any real difference between the two even if they really cant be directly compared due to obvious differences. Even that geekbench app shows them pretty much identical in terms of performance no matter how many times i run it
16nm?
14nm?
PR FUD
It's shame only Intel is sticking to their normal naming convention...and everybody else is renaming their process...even if gate and picth dosn't alter...sad, sad state of affairs
You're quoting FUD that has been disproved. Look to an expert like Chipworks for facts.
https://www.chipworks.com/about-chipworks/overview/blog/a9-is-tsmc-16nm-finfet-and-samsung-fabbed
I read a lot regarding this, some people are saying its the other way around that its the TSMC chip thats causing it to over heat and shutdown. Some are saying apple did this to make TSMC look better to cut out samsung.... who knows at this point...
All I know is the phone is overheating and its shutting down... every release they have some major issue that people just ignore and keep on buying them and calling them awesome..
All I know is the phone is overheating and its shutting down... every release they have some major issue that people just ignore and keep on buying them and calling them awesome..
The problem is differences in battery life.
Apple Confirms 'Good And Bad' iPhone 6S Chips Offer You Shorter Battery Life
article said:
A common use where this power drain difference would show outside of benchmarking is in mobile gaming, especially if it's more than minimally taxing.
Even Applenandtech was propagating this FUD but corrected itself:
http://www.anandtech.com/show/9330/exynos-7420-deep-dive
http://www.anandtech.com/show/9330/exynos-7420-deep-dive
2 hours delta is very fishy. I know there are a lot of variables due to second sourcing components, batteries, etc. that may make a small single digit % difference but 2 hours I blame on nationalistic Chinese media supporting Chinese TSMC fab.
D
Deleted whining member 223597
Guest
Samsung produces worse products than some "garbage Chinese manufacturer"? Impossibru!!!!
Correction: TSMC is Taiwanese, not Chinese.
Full name - Taiwan Semiconductor Manufacturing Company
LOL, he just gotta jump in every thread to trash talk anything related to Samsung or Apple....
Each chip is going to have a totally different physical design, so it's not a particularly effective way to compare process area/density. Same goes for power consumption.
I should add that they'll certainly also have differences in their schematic and RTL implementations, beyond just physical implementation.
Factum
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You're quoting FUD that has been disproved. Look to an expert like Chipworks for facts.
https://www.chipworks.com/about-chipworks/overview/blog/a9-is-tsmc-16nm-finfet-and-samsung-fabbed
I fail to see gate and pitch sizes on your photo.
Here is just as relevant a photo as yours:
We could also talk about bananas?
That's like reasoning the United States of America refers to all the States in the American Continents.
Taiwan is filled with Chinese who fled from the rule of the current mainland government. They choose not to flaunt their independence and anger the much larger dictatorship just a stone throw away and loose that independence.
That's like reasoning the United States of America refers to all the States in the American Continents. Technically anyone from North or South America are Americans but Call a Canadian an American and see his reaction, likely not positive and definitely will be corrected. Because the term is based on Country which is likely the Usage you are responding to is country based and not race based.
Taiwan is filled with Chinese who fled from the rule of the current mainland government. They choose not to flaunt their independence and anger the much larger dictatorship just a stone throw away and loose that independence. Its unfortunate that some take advantage this low-key tact from Taiwan to spread misinformation to make it easier for Mainland China to one day assert full control.