The new HP ProBook 450 G4 delivered even more than we expected.
Here you will find other useful information and every notebook we’ve tested with this processor: You can browse through our top CPUs ranking: And as far as the iGPU is concerned, it integrates a slightly improved Intel HD Graphics 620 clocked at 300 – 1050 MHz, which is slightly higher than the iGPU on the Core i5-7200U (300 – 1000 MHz). However, the Core i7-7500U’s TDP is still rated at 15W including the iGPU and dual-channel memory controller that supports DDR4-2133, LPDDR3-1866 and DDR3L-1600. Now the chip is clocked at 2.7 – 3.5 GHz (compared to the 2.5 – 3.1 GHz on the Skylake Core i7-6500U) and still adopting the 2/4 core/thread count using the HyperThreading technology with a maximum 4MB cache. It’s a direct successor to the Core i7-6500U (Skylake) and Core i7-5500 (Broadwell) but opposed to previous architecture refreshes, the Kaby Lake Core i7-7500U is bringing much higher clock rates.
The Core i7-7500U is part of the latest Intel Kaby Lake generation of CPUs built upon 14nm manufacturing process – or 14nm+ as the company markets – and should offer marginal performance gains over the Skylake generation while improving overall power efficiency. You can see main and additional colors with 25%, 50%, 75% and 100% saturation inside the sRGB gamut with and without our custom “Office/Web Design work” profile. We found the sRGB coverage slightly below the average for this price range – 49%, which means that less than half of the colors can be reproduced by the screen.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 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. Refer to the image below for more information. The maximum dE2000 (color deviation) is 3.4 while values above 4.0 are unwanted. The contrast ratio is rather low – 330:1 before and 270:1 after calibration. The color temperature is slightly deviating from the optimal 6500K – 7100K so it’s hard to notice the blue-ish tints in some colors. The maximum recorded brightness in the middle is 202 cd/m2 while the average value is 188 cd/m2 with maximum deviation of 11% in the lower center section of the surface. Viewing angles are poor due to the use of TN panel. The screen can be considered as “Retina” when viewed from a distance equal or greater than 60 cm. The ProBook 450 G4 uses a CHI MEI CM15E3 TN display with 1920 x 1080 resolution, 142 ppi and 0.18 x 0.18 mm pixel pitch. However, some of the results don’t necessarily show better image quality.
HP’s ProBook 450 G4 swaps last year’s TN panel with a different one and we’ve got the Full HD version. You can find some of the available configurations here: Buy from On the other hand, we are talking about a business-class model here so if you strictly looking for working, the ProBook G4 is a must-consider option. However, this has affected the price of the notebook and we have some concerns about the higher-end models with Core i7-7500U not being able to compete on the market with TN panels and underpowered graphics processor, which, by the way, should be at least better than last year’s 450 G3 with AMD’s Radeon R7 M340 discrete graphics.
Hopefully, most of them will turn out to be good but one thing is for sure – the upgrade to the newest Kaby Lake generation of CPUs will be more than beneficial. In most aspects, the ProBook G4 keeps what’s good from the previous version while offering slight changes here and there. HP’s ProBook lineup has been praised for a number of reasons in the past and now we will have to assess the next generation ProBook 450 G4 and see if it holds up to the legacy of ProBooks.