Question for any laptop is
"Will it overheat"?
Ideally should spend some time with a display unit, loading in games and playing them
BUT
in Malaysia does such a setup exist?

Better to get the laptop, confirm got 1-to-1 exchange within a week,
Use annual leave,
use that laptop for 1 week with extreme gaming (at least 1 day, try gaming for 24 hours).

Then you will know.

There is 1 to 1 (for MANY computer dealers),
BUT
BIG, HIGH TEMPERATURE, UNUSABLE PROBLEM has to happen within 1 week.
e.g. graphic card stops working,
e.g. display dead
e.g. cannot boot

Small problem like:
My keyboard got issue with some keys
or
Doesn't detect USB device ...

You will be waiting a LOOOONG time

As long as you are not the unfortunate one, that is okay.
Consumer laws weak in Malaysia therefore
After sales support must be strong.

Besides, most people have no choice but to buy retail, pay via iPmart there are problems too.
Just too bad for users that don't have the chance to "thrash" their machines just after they get it.