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Thermal Performance

To test the thermal performance of these new units, we put each of them through our full suite of benchmarks to get an accurate idea of how hot each unit runs at various levels of load. High performance laptops like these are generally intended to be used on a flat, hard surface, but often laptops get used on other surfaces (such as a lap, a bed or even the floor). In order to see how hot these laptops run on a non-ideal surface, we ran the exact same set of benchmarks with the laptops sitting on top of a thick blanket.

Since the intake for the CPU and GPU fan(s) are on the bottom of the laptops, having them on top of a blanket means that the feet on the bottom of the laptops cannot raise the units high enough to keep the fan intakes clear. This will always result in higher temperatures, but we want to know at what levels of load are the temperatures still acceptable, and when you should absolutely avoid using these units on a blanket or other soft surface.

Temperatures well below threshold May have issues in some situations Above acceptable temperature ranges

 

Hard Surface V150i V550i V750i M550i M750i
Light Load
Medium Load
Full Load
Gaming

 

On Blanket V150i V550i V750i M550i M750i
Light Load
Medium Load
Full Load
Gaming


On a flat, hard surface, all five of these laptops passed the majority of our thermal testing, although the V550i, V750i and M550i started to get up into warning levels when put under a full load. As we stated earlier in this article, the V150i does not have powerful enough cooling to keep the unit under safe temperatures under full load. However, getting any system (even full desktop systems) under a 100% load on both the CPU and GPU is very rare without very deliberately causing it to happen. Because of this, the slightly high temperatures we saw under full load still pass our qualification. 

When the units were tested on a blanket, we saw a very large temperature increase at almost all load levels. All of the units still had acceptable temperatures at light and medium load, although a few of them started to get into warning levels. At full load, none of the units had temperatures we would deem safe, although the V550i, V750i and M750i had acceptable temperatures while gaming.

If you would like to see the exact temperature readings we recorded under the different loads, feel free to click on any of the thumbnails below.

  V150i V550i V750i M550i M750i
CPU
GPU

 

Conclusion

After working extensively with these units, we are very confident in both the speed, usability, and stability of each of these new units. There are a few things that are worth keeping in mind, but overall they are all great units that will work well for a variety of uses. Compared to previous models, these laptops are faster, more battery efficient and provide greater customization.

To summarize this article, here are the key points to know for each of the units:

  Pros Cons
V150i
  • Small, compact size
  • Great when mobility and long battery life is needed
  • Best battery life out of all five units
  • Unprecedented performance in such a small size
  • Does not have a full 1080p screen (1366x768)
  • Has plenty of graphical power, but not as much as the other models
  • No capability for a built-in optical drive
  • May have heat issues if put under very extreme loads
V550i
  • Good mix of size, battery life and power
  • Full 1080p resolution
  • Allows for two 2.5" hard drives to be installed
  • Best gaming performance when on battery 
  • Built-in Nvidia GPU does not allow for customization of the video card
  • Only allows two RAM sticks to be installed
V750i
  • 17inch screen
  • Full 1080p resolution
  • Allows for two 2.5" hard drives to be installed
  • Best gaming performance when on battery 
  • Very Large
  • Built-in Nvidia GPU does not allow for customization of the video card
  • No fingerprint reader
  • Only allows two RAM sticks to be installed
M550i
  • Good mix of size, battery life and power
  • Full 1080p resolution
  • 2 minicard slots allow for devices such as mSATA drives to be used in addition to wireless
  • Full size illuminated backlit keyboard
  • Discrete GPU allows you to customize the installed video card
  • Allows four RAM sticks to be installed
  • Best gaming performance when on AC Power

  • Allows for only a single 2.5" hard drive to be installed
  • Gaming performance when on battery is very poor
  • AC Adapter brick is very large and heavy
M750i
  • 17inch screen
  • Full 1080p resolution
  • Allows for two 2.5" hard drives to be installed
  • 2 minicard slots allow for devices such as mSATA drives to be used in addition to wireless
  • Full size illuminated backlit keyboard
  • Discrete GPU allows you to customize the installed video card
  • Allows four RAM sticks to be installed
  • Best gaming performance when on AC power
  • Very Large
  • Gaming performance when on battery is very poor
  • AC Adapter brick is very large and heavy

 


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