1.1 I'd go with the 15-inch option, better specs for less money, and good enough thermals and performance with the latest drivers.
1.2 that's up to you. I'd be fine with either one

I am interested in the following characteristics:
a) Harware: i7 (thinking that it will age better, although this implies lowering the dgpu) preferably above the i5 although you could also use this without a doubt.
b) dgpu: at least a gtx 1660ti and if it is possible to get to the 2060 better, but not for the rtx, but for the performance improvement it can provide me.
c) screen: yes or if I want it of 144hz, but with a range of decent colors and brightness, (the new tuf a15 from asus I don't want them for that reason and also for the high temperatures of the components, despite the good price) I have many doubts between a 15 or 17-inch screen, portability is secondary to the best experience (I want to insist on this) although I think I prefer the screen of 17 (I have never had a laptop with that size) I must take into account the increase in price compared to the 15 model when we talk about the same laptop.
d) other aspects: the cooling has to be competent for the presented components, good construction, good keyboard but it does not have to be outstanding, 16gb ram and the storage does not matter what is little, then I can increase it in almost all the models, the battery nor is it vital.

– After investigating, I have these two options as more interesting:
1- Acer predator helios 300: I find the 17-inch model interesting because of the best thermic, the speakers and the screen, of course, that for my money I would choose the 1660ti gpu model and very little storage. Do you think this model is more interesting than the 15-inch one, although it may be inferior in storage and some other hardware details?
2- Lenovo Legion y540, I like this laptop, but I am more inclined to the predator, especially for the best construction.
3- Lenovo Legion 5i: Very soon they will be on the market and I really like how they look, but be very uncertain about the price, I think it will be a good laptop, but you have to wait for the reviews, perhaps with the release of these new laptops , last year's prices drop and would be a point in favor of previous models.

1.1 Do you think it is more interesting to opt for a 17-inch model over a 15-inch model, even if that means that the larger model has lower hardware than the 15-inch one?
1.2 Will there be much difference in the gaming experience on a screen of 15 to play on one of 17?
-Note: I know that these questions at the end seem strange and it should not be easy to answer it because it depends on each one, but I ask for your personal experience, as you prefer.

– I will appreciate all the answers tremendously, greetings.

There are some options, but not with gaming-capable specs. See this list: https://www.ultrabookreview.com/4219-the-lightest-ultrabooks/

The weight is important for me so if there are 15" with 1.3kg or less it work, but as far as I saw there is none…

Do you need to go with a 14-inch laptop? There are many good portable 15-inch models such as the MAG 15 or the Zephyrus M GU502.

Thanks for your reply. I also previously had issues with MSI about the MXM replacement GPU with the GT70/GT72/GT80…
BUt was considering giving them another chance since other than a contractual/commercial issue, my GT72 has been running flawlessly since 2014 with very good temps for the 980M.

ANy alternative then ?

We had big troubles with the MSI Prestige 14 we had for reviews, and it was only the MX250 25W version. We sent it back to MSI and never heard back for a replacement, so I wouldn't go with it, based on my experience with that sample.

As for Ryzen 4000 laptops, I don't think they will affect this segment of light-weight laptops, but rather the segment of mid-range full-size notebooks

I'm looking for a light, 1.5kg max, 13.3 to 14.9" laptop.
I came up with the MSI prestige 14 in i7 configuration with 1650 Max-Q but was wondering if it's really worth it since it needs some thermal modding to squeeze max performance (repaste + heatpipe added). Ref: https://www.reddit.com/r/intel/comments/e5fzc1/i710710u_revisited_msi_prestige_14_w_lm_mods_3064/

I was considering to do the mod myself or via HID, but being in Europe it adds a lot to the cost if ordered in the US.
Is there any alternative to this MSI with a price from 1000-1500 USD ?
Can we expect price drops when Ryzen 4000 laptops start to be available ?

WiFi 6 – not a must imo, WiFi AC is more than fast enough for regular use
TB3 – also not a must, unless you need very fast data transfer or an external dGPU, or perhaps you plan to use a TB3 dock
USB-C charging – nice to have, as it would allow to only grab along an USB-C charger when raveling that could take care of your laptop, phone, tablet, etc. More powerful laptops would require a barrel-plug charger as well, so USB-C would be secondary

Wow! Great reply! =)

We're living in Austria and have to drive to the stores or wait for the delivery. So it’s kinda problem to check it in time. Also the price for DELL 15 XPS here is out of budget (1.600) and it has i7-8750H, GTX1050Ti, 8Gb.

Nonetheless, thanks to your reply now we have 2 options to choose: yoga s740 and Zephyrus GU502.
The last two stages now are to „touch“ and to get an answer about the need for WiFi 6, and also TB3 and charging by Type-C. Could you please comment this features?

Thank you again! I was waiting for the answer with opened 35 tabs in browser and it was painful. And then I’ve received your answer and it was really breathtaking;) thanks for your job! I’ve read all those mentioned reviews. You make a great job!

Hi. You narrowed down your options well, and I would also include the Dell XPS 15 in there.

Hardware-wise, you've got two options: either more efficient, but less powerful Core U platforms, (such as the ZenBook 15, Prestige 15), or more powerful, less efficient Core H platforms. I'd also go with 16+ GB of RAM and definitely SSD storage. As for graphics, a GTX 1650/1660 Ti should handle those older titles well, but for RDR I'd go with at least a 1660 Ti.

Those being said, the Zephyrus M is, imo, an excellent laptop, but Asus's quality control isn't great and I'd suggest buying from a place that allows returns, test the laptop for flaws when you get it, and then ask for an exchange if you're unlucky. Keep in mind that most reviews tend to exaggerate the negatives, simply because most of those satisfied with their product don't bother leaving a review, but those who got a faulty unit will be more vocal about it.

Depending on where you're from, there are also some barebone options you could consider, from Eluktronics (Mag 15) or XMG (Fusion 15). Furthermore, if you're willing to skimp on the graphics, the Yoga S740 and the Dell XPS 15 should also be on your list.

As for your other options:
2. Y540 – good value laptop, but lower-end in terms of quality, build and features. also fairly heavy and chunky, could be an option if you're looking for a better GPU at a lower price.
3. Thin and light, but not a fan of the thermal design that blows hot air into the screen, and overall dated compared to other options. See the review.
5. Thin and light, efficient hardware, big battery, but poor thermals and some performance limitations in demanding loads. Could be an option with the six-core i7, but read reviews to understand the quirks.
6. haven't tested it, but it's a lower-tier product like the Y540.

Hope this helps.

Sorry guys for not mentioning all of you! You all doing a very great job! Thank you for all your reviews and articles:) despite the fact that they contain a bulk of information, I had to ask a question;)

So for the first tasks it’s quite clear: the laptop has to have good screen. The last point is a corner stone cause I want this experience to be VERY GOOD – not the „top“ but decent. So maybe the cooling system > edge performance.
Honestly, good using experience at all is a main requirement.

As I want my laptop to stay „up-to-date“ longer, it’s seems that it should carry at least Turing dGPU. Could you please comment this point and the following „high-tech features“ as well:
1) I guess that WiFi ax (6) will be a pretty useful thing in the nearest future (I want it)
2) I guess that Type-C with TB3 and Charging is quite useful

So for me:
• CPU: Intel (guess better, discuss please)
• Memory: 16 or 8-upgradable
• Storage: no matter, may be at least 128 SSD (I have a lot of HDDs and one Samsung 840EVO SSD 120)
• GPU: d, may be Turing
• Screen: a good one of 15-15.6, may be 17. FHD/UHD/4K. IPS (?)
• IOs: ideally like good workstation – USB3 (+/- TB3, DP, charge), LAN, DP/HDMI, SD, mic – all things are Discussable
• Size and weight: not a point
• Materials and design: has to be good quality, „nice to touch“. Not every model in this class has it. And also I don’t like so much these „monster-aggressive-RGB-teenager“ style but ready to discuss:)

The options I’ve found:
1) Lenovo Yoga s740 (15) – rather a „toy“ then a workstation, but I like it a lot. My „wish“:)
2) Lenovo Legion Y540 15IRH
3) ASUS ZenBook 15 UX534 – I don’t like ASUS but my wife likes it a lot :) at least it’s she who will work with it every day
4) ASUS ROG Zephyrus M GU502 (I would like a GX but it’s out of budget a bit)
5) MSI Prestige 15
6) DELL G3 15 3590

I’ve read a lot of bad feedback on all of these laptops, they have own pros and cons. As you can see there’s no ThinkPad – it’s because I had an experience with it and didn’t have any fun =\ discuss ;)

Great Thank you in advance!

The Asus ZenBook Pro Duo could be an alternative, but you're paying a hefty premium for the form-factor. Make sure to read the screen part of our review, I share my thoughts on OLED in that.