Battery, Thermal, And Display Testing
Battery Test - Tomb Raider 2013 Battery Rundown
To test battery life, we set each laptop’s battery profile to Balanced while running Tomb Raider’s built-in benchmark at the lowest detail preset. The frame rate is locked at 30 FPS through GeForce Experience’s Battery Boost to limit the strain on the battery. Meanwhile, a script running in the background monitors and time stamps the system’s battery percentage. The laptops are set to hibernate once battery levels reach 5%. We test the battery life twice at the laptop’s maximum brightness and at 200 nits.
At maximum brightness the MSI GS43VR Phantom Pro takes second place, scoring just two minutes behind the GS63VR Stealth Pro in battery longevity. Both of these laptops are aimed at those who want thin, light gaming laptops, and at just under two hours, MSI’s contenders make for excellent portable gaming systems. The Phantom Pro gains a few extra minutes when the display brightness is limited to 200 nits. The Gigabyte P57W v6 has a higher maximum brightness than the Phantom Pro, so limiting its brightness to 200 nits increases the battery life further. Unfortunately we did not have the Stealth Pro to run our 200 nit battery test (we have added this aspect, starting with this review).
Most systems idle at a relatively cool 38-41°C, but we found the Phantom Pro to run a bit warmer than usual. While the GPU heatsink and its corresponding heat pipes hover around 43°C, the CPU heatsink and its heat pipe border on 50°C. We’re dealing with a rather small system with tightly packed components, so warm idle temperatures are to be expected. However, after running Furmark for 15 minutes, we’re happy to report that the Phantom Pro remains within acceptable temperature limits; our Optris camera detects 73.1°C emanating from the GPU heatsink, and sure enough Aida64’s GPU diode log reports a maximum temperature of 73°C. This is a bit cooler than the thinner Stealth Pro, but the Phantom Pro doesn’t run quite as cool as the Acer Predator 17, which has a more robust cooling system and better ventilation.
We used the SpectraCal C6 Colorimeter to measure the Phantom Pro’s display. Be sure to check out our Display Testing Explained article for a full description of our test methodology.
Unfortunately, the Phantom Pro suffers from poor contrast. At 0% brightness the black luminance is nice and low, but the white luminance is low as well, diminishing the overall contrast ratio to 709.1:1. At maximum brightness, it’s the opposite: the white luminance is adequately bright, but the black luminance is much too high, resulting in a maximum contrast ratio of 757.7:1. This leaves our Phantom Pro’s display looking rather flat. In comparison, the other three laptops in our roundup score closer to 1000:1.
RGB balance is a different issue, and for the most part our Phantom Pro’s RGB levels remain solid until around 70% brightness. Comparatively, the laptops we’ve tested in the past lose RGB balance at around 30% brightness. With the Phantom Pro, at around 70% the red levels begin to rise significantly, which creates a noticeably reddish hue, whereas the green levels plummet. The blue levels stay close to 100%, however.
The Phantom Pro’s average gamma level falls just under 2.2, and it exhibits impressively low grayscale and average color DeltaE values. Very rarely have we found gaming laptops with low color errors; both of the Gigabyte laptops we've tested, including the P57W, had acceptable levels, but the MSI unit manages to deliver an even better picture. This almost makes up for the low contrast. Almost.