If you are dealing with 10-bit H.265, the media engines in the Apple MacBook Pro 16 M3 Max 64GB RAM are honestly unbeatable for smooth playback. The Razer Blade 16 RTX 4090 32GB RAM wins on CUDA performance for Resolve, but it throttles faster under load. I would go with the Mac for the efficiency and that Liquid Retina XDR display... plus that unified memory really helps with high-res timelines.

I remember trying to finish a commercial project on a thin laptop a couple years back and it literally felt like it was gonna melt through my desk. That experience forced me to look beyond just the shiny marketing and focus on actual thermal mass. If you are stuck in the Windows ecosystem for specific plugins, you gotta look at the beefier workstations. The ASUS ProArt Studiobook 16 OLED H7604 is a beast if you want color accuracy. That 3.2K OLED panel is basically cheating for grading, and it has a physical dial that maps to Premiere and Resolve which is such a workflow game changer once you get the muscle memory down. Main downside is it is a bit chunky and heavy to lug around, but the cooling actually works during those long 10-bit exports. On the flip side, I spent some time with the Lenovo Legion 9i Gen 9 RTX 4090 recently. Most people think it is just for gaming, but that integrated liquid cooling system is huge for sustained loads. If you are doing heavy noise reduction in Resolve, it holds its clock speeds way better than something like an XPS. The XPS looks pretty but tbh it throttles way too fast for serious 4K timelines. Another dark horse is the MSI Creator Z17 HX Studio A13V if you need a touchscreen/pen for masking work. The fans can get a bit loud, but the build quality is solid. Just stay away from the thin-and-light trap if you are doing professional video... you need the airflow.

Tbh I’d just grab the <a href=" https://www.amazon.com/s?k=ASUS+ Vivobook+Pro+16X+OLED+i9+64GB+RAM+RTX+4070&linkCode=osi&------123456890?5422-20" target="_blank" rel="nofollow sponsored">ASUS Vivobook Pro 16X OLED i9 64GB RAM RTX 4070. Its way cheaper than the others and that OLED screen is honestly perfect for color grading.

To add to the point above: thermal reliability is basically everything when you are doing long exports. In my experience, those sleek laptops start screaming the second you hit render on a heavy 4K timeline. I have tried many rigs over the years and the beefier gaming chassis usually handle the heat way better than the creator branded ones that just look pretty. Quick question tho, are you planning to travel a lot with this or is it basically gonna live on your desk? If you want absolute reliability and zero throttling during 10-bit H.265 encodes, you should look at the MSI Titan GT77 HX i9-13980HX RTX 4090. Its thick and heavy but the cooling is insane and it wont choke under pressure. Another solid pick for stability is the ASUS ROG Strix SCAR 18 RTX 4080 64GB RAM. Ngl the gamer look is kinda annoying but the performance stays stable for hours which is what actually matters for pro work.