Adobe RGB Accuracy

With sRGB testing out of the way we can move on to testing the Blade Pro against it's actual target gamut, which is Adobe RGB. Adobe RGB has a wider green primary than sRGB, and targets the same white point of D65 as sRGB, while using a gamma of ~2.19. sRGB technically uses a gamma curve that is not a simple power curve, but for our laptop testing we test against a value of 2.2 for sRGB, which is an approximation that many vendors also use when calibrating their displays.

Greyscale Accuracy


SpectraCal CalMAN

As I mentioned on the last page, the greyscale target is essentially the same for Adobe RGB and sRGB, so it's not surprising to see the same issues with accuracy here. The gamma is irregular and generally too high, while the RGB balance for each shade of grey is shifted toward red and lacking in green. With the calibration applied the greyscale is too red, not accurate at all, and the display is actually dimmer than when no profile is applied at all.

Saturation Accuracy


SpectraCal CalMAN

Relative to Adobe RGB, the Blade Pro performs decently when rendering primary and secondary colors. The accuracy isn't exceptional, but it's not bad. The one thing that does stand out is the accuracy for blue, which is really not acceptable. The red bias to the display is the cause of this, and contrary to what may seem intuitive, the accuracy of red is negatively impacted by it as well. Ultimately the accuracy here isn't poor, but given that the issues stem from problems in the greyscale I have no doubt that this result is far from the best that the display is capable of.

Gretag-Macbeth ColorChecker Accuracy


SpectraCal CalMAN

Accuracy with color mixtures is in the same sort of situation as primary colors. The accuracy is okay, but just okay. When you also consider that the Blade Pro costs $3699 you might argue that the accuracy is actually completely unacceptable rather than okay, but if I'm grading on the same standard that I apply to other, typically less expensive devices, I would say that the accuracy is okay. The issues with greyscale shades contribute to the error, and some of the other major errors come from colors that derive from blue and those that are a mixture of red and green.

Adobe RGB Calibration

Even relative to its target gamut, the Razer Blade Pro is not near as accurate as such an expensive device should be. While there's no way to constrain the gamut to sRGB using greyscale calibration, there's certainly room for improvement when targeting Adobe RGB. To see what the Blade Pro's display is capable of when properly calibrated I performed my own greyscale calibration using CalMAN and the i1Pro 2. For reference, Adobe RGB still uses the same white target of D65 as sRGB, and has a gamma of ~2.19, slightly lower than the approximated gamma of 2.2 that we use with sRGB testing.

Greyscale Accuracy


SpectraCal CalMAN

Greyscale accuracy improves tremendously after calibration. Razer's gamma was not even close to the target values, and the RGB balance showed how the display was significantly biased toward red. The calibrated profile brings the gamma right on target, with a mostly insignificant jump at 95% white. The red bias has also been brought under control, with the RGB contributions to luminance being very well balanced for each shade of grey. As a result, error in each shade is so low that the human eye would not be able to distinguish the colors from the true reference shade even if an object of the true color was placed right next to the display. 

Saturation Accuracy


SpectraCal CalMAN

Bringing the color balance and gamma under control leads to a corresponding improvement in the accuracy of primary and secondary colors. The saturation accuracy prior to calibration was not terrible by any means, but the average error was higher than it should have been given the cost of the machine, and there were certain shades of blue where the level of error was much too high. After calibration, most errors are invisible to the human eye. It's not possible to completely fix the errors with primary colors due to the limited adjustments that can be made with a greyscale calibration, but the improvement is still very significant, and the accuracy is at a level where you could use the display for Adobe RGB photo editing without concerns about whether the colors are being reproduced faithfully.

Gretag-Macbeth ColorChecker Accuracy


SpectraCal CalMAN

The Gretag-Macbeth ColorChecker test reflects the accuracy of the greyscale and of primary and secondary colors. Given that the post-calibration results for those tests were exceptional, it's not surprising to see that the result here is equally good. Once again, most errors can't even be seen by the human eye, and the cases where they can be are mostly academic and not relevant even for professional photo work. There's honestly nothing to criticize here; the accuracy is truly outstanding.

I've included my calibrated ICC profile here for any Blade Pro users who may want it. Due to panel variance I obviously cannot guarantee the results that I achieved here, but I did test the displays on two Blade Pro units and they were similar enough that it's still a vast improvement over the profile that it ships with.

Summary

The results of my calibration show that the Razer Blade Pro's display is capable of much better color accuracy than it provides out of the box. I don't know why Razer even bothered to calibrate the displays when either the standards for accuracy were very low, or the target values themselves were simply incorrect. With such an expensive machine I expect the ability to choose an sRGB color mode for when I need it, and the color accuracy should be suitable for professional work in every color mode.

As it currently stands, the Razer Blade Pro's display will be suitable for the target audience of gamers playing games, but it produces distorted colors in most Windows applications, and even in color-managed applications the calibration of the display itself means that the accuracy is not very good at all. I think many people underestimate how important it can be to see colors correctly on a display, and perhaps the most relevant example as you read this is the fact that I couldn't put the images in this article using the Blade Pro itself because I would be unable to verify how they actually look.

Again, I don't think this kind of issue poses a problem for playing games, especially because so many games load terrible gamma curves that ruin the colors on the display anyway. However, this issue limits the appeal of the Blade Pro to other kinds of users who may seek to adopt it as a mobile workstation where they can do professional photo and video work. Including an sRGB color mode and performing rigorous display calibration would resolve this, and I don't think it's too much to ask of a $3700 computer.

Display: sRGB Accuracy Battery Life and Charge Time
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  • fanofanand - Monday, March 6, 2017 - link

    I bought my wife a cheap $350 Acer (because she doesn't know the difference) and despite her repeated attempts, she has been unable to destroy it. Plastic is not premium, but is great when you are building things to a price point. Most consumer electronics sold are not the top-end gear.
  • BrokenCrayons - Monday, March 6, 2017 - link

    I think the part I don't like about plastic laptops are those metal-in-plastic screw fittings where there's a little threaded cylinder for the screw that has that knotty outside and get stuffed into a hollow plastic tube. (No idea what the technical name for those things are.) The plastic sometimes will crack around them and the screws along with the threaded cylinder thingies will break free.
  • Barilla - Monday, March 6, 2017 - link

    Ok, just to clarify - I have no issue with this laptop being made of aluminium, I even agree it's a good choice, although if I wanted to be picky, there are carbon fibre materials with thermal conductivity equal to or higher than aluminium.

    I meant it on a more general level as your comment about carbon fibre mentioned Dell XPS, which in it's 13" version houses a 15W CPU and no dGPU, which means it needs to dissipate at most 1/10th the heat this laptop does.

    Really, nothing against aluminium. Or magnesium either, as I'm typing this comment from a Surface. All I'm saying is that plastic, and especially carbon fibre, is a perfectly fine material in many - not all - applications, including some laptop and smartphone chassis.

    Peace.
  • Azurael - Monday, March 6, 2017 - link

    I wonder whether people will ever get beyond that 'it looks more premium' mindset with CFRP (or even polycarb) vs. metals. Personally, I'd prefer to be able to buy 'plastic' versions of any portable electronics for impact resistance, metal devices are far too easy to dent and break. It's all very well having a metal phone or laptop, but if you have to keep it in a plastic/rubber case all the time to keep it safe, I don't see the point.
  • simonm - Monday, March 6, 2017 - link

    Carbon fibre is strong but to the best of my knowledge not usually a good conductor of heat except for certain specialised versions.

    So unless Razer went with some kind of super carbon fibre the case won't be able to facilitate cooling (like an extended heat sink) as well as if it were aluminium. I doubt Razer did use a high conductivity fibre or they'd be marketing the hell out of that.

    Instead they chose it probably for its high strength/rigidity to weight ratio, lower cost than aluminium and marketing because it sounds cool and high end.

    If money (and weight) wasn't an option you could use lots of metal alloys that are more conductive than aluminium. Copper... gold ;)
  • simonm - Monday, March 6, 2017 - link

    Correction: change option to issue!

    PS: So I think most people are looking down on the CF for its thermal properties when compared with aluminium. Aluminium offers good weight and thermal properties but with high expense and lower hardness/rigidity than carbon fibre.

    With a 1080 packed in there and a 180 W power adapter I reckon you'd want as much help dissipating heat as you can get. So carbon fibre seems like something of a compromise.
  • colonelclaw - Monday, March 6, 2017 - link

    Surely carbon fibre is much more expensive than aluminium? That's the impression I always got from products that use it, or is that just marketing?
  • fanofanand - Monday, March 6, 2017 - link

    Carbon Fiber (the high-tech variety) is far more expensive than aluminum.
  • Bullwinkle J Moose - Monday, March 6, 2017 - link

    if money (and weight) wasn't an option.....

    Diamond plated Silver would be a far better thermal conductor than Copper or Gold
    Diamond has 3X the thermal conductivity of even silver

    But a diamond frost coat on copper would look better

    A Rose Gold that costs as much as real Gold

    Sound like an Apple Product!
  • SkipPerk - Wednesday, April 19, 2017 - link

    In order to plate the silver to make it strong enough I think it would interfere with the thermal transfer. I think nickel-plated copper would be the better choice, although it would still be soft. Aluminum really is the best choice.

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