Xda is my blog =p
I stay in malaysia 25C~35C depending on weather.
-Stock rom @ Stock GHZ @ Stock Vol
-r32 franco kernel
At first, I thought my antutu score was so terrible, getting 23k~25k. Then I does a quick search and realize it was thermal throttled.
I got annoyed with the low score. (U know the feeling when u have the almost same spec as note3 and getting low score)
40~60C on normal usage, 77C max when running antutu.
So I decided to void my warranty, and deal with the s800 heat problem.
I applied 3W/mk 1mm thermal pad, and the result was good. Got 27K~28K. The screen was slightly hot to use. Not comfortable when keeping in pocket after usage. 40C~58C on normal usage, 66C max when running antutu.
After 3days, I got frustrated with the heat on the screen everytime I use. The heat was so hot and I worried the screen might fail over time.
I thought maybe thermalpad wasn't a really good conductor and collecting too much heat.
So I change from thermal pad to 0.5mm Copper plate. I applied thermal paste between s800 and copper plate and nexus5 frame.
legend: ('# = thermal paste'),('Cu = Copper')
The result of antutu was great! 29k~30K. 30999 was the highest I get.
But then I got more frustrated and worried with the heat on the screen. It is not even optimal temperature for the IPS screen to work properly.
40~60C on normal usage, 65C max when running antutu.
The frame was a good collector of heat, but a very bad heat dissipator, it got very hot on the screen after long use and it actually reached 65C
for just surfing websites with chrome. 30min of surfing on forums only, no java/gif/flash/watever****s.
I used to be an overclocker on PC, and 60C is a very sensitive limit to me. I feel very sad that Nexus5 is very bad with thermal control that it actually sacrifice s800 performance to overcome the thermal issue. So in the end I took out the copper plate and clean up the thermal paste.
It actually feels better for daily usage where no thermal paste/pad/ copper plate is applied to the frame.
Lesson of nexus5
1) Forget about the benchmark. Nexus 5 score will not able to beat other s800. Unless you live in freezer or somewhere cold.
2) God created us, He knows us best. Have faith in the thermal throttling, LG knows nexus5's best
3) Nexus5 is not a heatsink, the frame is not for heat dissipation, it is a big heat collector.
4) Nexus5 is easy to disassemble.
I voided my warranty for this lesson. (It was fun anyway, I like to disassemble things)
But no sticker nor watever pin that shows I've opened up my unit.
So yup... still got chance for warranties next time. (Probably changed new phone by that time)