Are you certain it has a 144 hz refresh rate?

Yes, the monitor is 144 hz. Whether the gtx 1060 can push 144 fps in the game you are playing or not is a different issue, totally unrelated. If you want 144 fps in the gpu-intensive game you are playing, you need to compromise; lower the graphics settings until you get there.

does every single model of this computer throttle because of overheating or is it just a common issue?

Throttling is because the TDP of Intel Processors placed into high-performance laptop/mobile platforms rely on marginal resource utilization (base clock frequency of 2.2GHz). It's just not reasonable to expect a 6-core, 12-thread processor to run at boost speeds nearly 2.0GHz over that of base frequency and have a dedicated graphics solution running full-bore too. That's why the TDP rendered 45W isn't based on boost speeds. Tweaking voltages and current limits with Intel Extreme Tuning Utility paired with cooling/chilling pad that aid to force air into the bottom of this machine goes a long way to extract performance from the platform. The density of components in a laptop platform just cannot deliver the expectation many have- that performance is like that of a same-generation desktop processor in mobile format. This is not an Acer-specific symptom of the inaccuracy the processor maker uses, intentionally vague language, to leave folks to assume that expectation that isn't met. By using XTU, you can shift the limit to that of current, rather than thermals; an indication that the chip maker is responsible for your failed expectations. I really like the laptop and really like the Intel CPU inside; but, I had realistic expectations going in.

What kind of warranty does it come with? Any idea of the turn around time when shipping it in for service?

This comes with a 2-year manufacturer's warranty against hardware defects. Turnaround time is 7-10 days once the system is received in. Warranty details are posted here for your convenience: https://www.acer.com/ac/en/US/content/standard-warranty

Brand	Acer
Product Dimensions	38.99 x 26.59 x 2.67 cm; 2.5 kg
Batteries	1 A batteries required. (included)
Item model number	PH315-51-78NP
Series	Predator Helios
Form Factor	laptop
Standing screen display size	15.6 Inches
Screen Resolution	1920 x 1080 pixels
Resolution	1920 x 1080
Processor Brand	intel
Processor Type	Core i7 8750H
Processor Speed	4.1 GHz
Processor Count	6
RAM Size	16 GB
Memory Technology	DDR4
Computer Memory Type	DDR4 SDRAM
Memory Clock Speed	2666 MHz
Hard Drive Size	256 GB
Hard Disk Description	ssd
Hard Disk Rotational Speed	5400 RPM
Graphics Coprocessor	NVIDIA GeForce GTX 1060
Graphics Chipset Brand	NVIDIA
Graphics Card Description	Dedicated
Graphics Card Ram Size	6 GB
Graphics Card Interface	Integrated
Connectivity Type	Bluetooth, Wi-Fi
Wireless Type	802.11ac
Number of USB 2.0 Ports	2
Voltage	240 Volts
Wattage	180 watts
Optical Drive Type	No Optical Drive
Operating System	Windows 10
Average Battery Life (in hours)	7 Hours
Are Batteries Included	Yes
Lithium Battery Energy Content	32 Watt Hours
Lithium Battery Packaging	Batteries contained in equipment
Lithium Battery Weight	500 Grams
Number Of Lithium Ion Cells	4
Number of Lithium Metal Cells	20
Item Weight	2.5 kg
Guaranteed software updates until	unknown

Acer Predator Helios 300 Gaming Laptop, 15.6" FHD IPS w/ 144Hz Refresh Rate, Intel 6-Core i7-8750H, Overclockable GeForce GTX 1060 6GB, 16GB DDR4, 256GB NVMe SSD, Aeroblade Metal Fans PH315-51-78NP

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