Installing of our Health-Guard profile not only eliminates PWM but also reduces the harmful Blue Light emissions while keeping the colors of the screen perceptually accurate. You won’t experience any negative effects on your eyesight only if you use the notebook’s display at maximum brightness (100%). Unfortunately, the display emits pulsating light (uses PWM) and can be considered pretty aggressive at 1 kHz. You can read more about that in our dedicated article on PWM. In these light impulses the light/no-light time ratio varies, while brightness remains unchanged, which is harmful to your eyes. When you lower the brightness, the light intensity of the backlight is not lowered, but instead turned off and on by the electronics with a frequency indistinguishable to the human eye. Pulse-width modulation (PWM) is an easy way to control monitor brightness. You can see main and additional colors with 25%, 50%, 75% and 100% saturation inside the sRGB gamut pre and post calibration. We are pleased to see that the sRGB coverage goes as high as 94% making the display good for gaming and multimedia purposes.īelow you will see practically the same image but with the color circles representing the reference colors and the white circles being the result. We’ve also included the so-called Michael Pointer gamut, or Pointer’s gamut, which represents the colors that naturally occur around us every day. Rec.2020, however, is still a thing of the future and it’s difficult for today’s displays to cover that well. Still, we’ve included other color spaces like the famous DCI-P3 standard used by movie studios, as well as the digital UHD Rec.2020 standard. Basically, colors inside the black triangle are used by everyone and this is the essential part of the color quality and color accuracy of a mainstream notebook. As for the Adobe RGB, this is used in professional cameras, monitors etc for printing. Inside the black triangle, you will see the standard color gamut (sRGB) that is being used by millions of people in HDTV and on the web. To start, there’s the CIE 1976 Uniform Chromaticity Diagram that represents the visible specter of colors by the human eye, giving you a better perception of the color gamut coverage and the color accuracy. To make sure we are on the same page, we would like to give you a little introduction of the sRGB color gamut and the Adobe RGB. The contrast ratio is okay – 770:1 and falls down to 650:1 after calibration. The maximum color deviation dE2000 at 140 cd/m2 (40% brightness) is 2.9, which is good since values above 4.0 are unwanted. Below you can see the results at 40% brightness (140 cd/m2). As we go along the grayscale with different brightness levels, the color temperature appears to stay at around 7800K. The color temperature at maximum brightness on white screen is 7800K, which is considerably colder than the standard 6500K. We were able to record a maximum brightness of 312 cd/m2 in the center of the screen and 293 cd/m2 as average across the surface with only 11% maximum deviation. It can be considered as “Retina” when viewed from a distance equal or greater than 69 cm. With a 17.3-inch diagonal, the screen has 127 ppi (pixel density) and 0.1995 x 0.1995 mm mm pixel pitch. The 17-inch Helios 300 uses a Full HD (1920×1080) IPS panel manufactured by Innolux with model number N173HCE-E31. Update: Benchmarks of the Core i7-8750H configuration added. Also, our concerns about the cooling design, which is the same from the 15-inch variant, are finally confirmed. In short, it’s far from what we’ve expected to see in a Predator gaming machine. The 15-inch model boasts an aluminum lid and metal interior but the 17-inch model is entirely made out of plastic and strongly resembles the Aspire VX 15 series. But when it comes to build quality, things are done differently here. Anyway, both have the same Core i7-7700HQ / i7-8750H paired with NVIDIA’s GeForce GTX 1060 GPU, up to 32GB of DDR4-2400 memory, Full HD IPS displays and standard storage configuration with M.2 PCIe NVMe SSD and a 2.5-inch HDD. This is probably the reason why the 17-inch Helios 300 has vastly different model number – PH317-51. Interestingly, the 17-inch Helios 300 has fewer similarities with the 15-inch model than expected, aside from the design and hardware, of course. Acer is also planning to launch a 17-inch version of the notebook that should come as a more affordable alternative to the Predator 17 (G5-793) with GTX 1060. We also had the chance to play around with and our early verdict on the notebook is that it has some considerable drawbacks, which, by the way, aren’t driven by the price tag. Ever since Acer launched its affordable 15-inch GTX 1060 gaming solution, the Predator Helios 300, users around the world were immediately attracted by its excellent price/performance ratio.
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