Quote from: pelican-freeze on Yesterday at 19:00:29Honestly, just read what I wrote? Nothing in your comment appears to be a direct response to anything I said. Obviously you can game with lower wattage CPUs and eGPUs - you'll just get worse performance. And obviously if you want to avoid your eGPU being performance limited / bottlenecked by your CPU choice you can just choose a CPU that is a better fit for gaming.
Worse performance, yet still significantly better than what you get with gaming on iGPU or dGPU in that same laptop (if a GPU in an eGPU dock/enclosure is more powerful, naturally).
Quote from: pelican-freeze on Yesterday at 19:00:29Spending $$$$ on a high wattage desktop GPU that you know will be performance constrained by a low wattage mobile CPU is clearly not going to provide the best experience but no one is stopping you from doing it if you want. Also, you can't put a higher wattage mobile CPU intended for gaming use (255HX+) into a 4 lb ultraportable laptop so if your goal is "ultraportable laptop that can play games at home" that rules out the higher wattage enthusiast class CPUs that are designed for gaming / workstation laptop use.
Quote from: pelican-freeze on Yesterday at 19:00:29So there's nothing stopping you from using an eGPU / mobile CPU combo where the CPU is the performance bottleneck. It's clearly not possible to argue though that the best mobile CPU choices for gaming aren't the higher wattage mobile CPUs *explicitly* designed and marketed by Intel / AMD as mobile gaming CPUs.
The CPU is always a bottleneck, no matter of TDP. If you check any of the links above, for example that video with the Legion Go + 3070 eGPU, you will see that the CPU usage is basically identical in all scenarios - with or without eGPU; for example, as clearly demonstrated in the video, in Final Fantasy 7 Rebirth
the CPU at 1080p low is at 21-24% to get 26 average fps with iGPU, yet once the 3070 eGPU is plugged in there is 75 average fps at 1440p high settings with
the CPU usage at exactly the same 21-24%.I have 5070 Ti, when I try to play Shadow of the Tomb Raider for example (I'm actually currently replaying the reboot series) with my X1 Carbon Gen 9 and its iGPU (i7 1165G7, Iris Xe) at absolutely lowest possible settings at 720p, I get barely 30 fps with 55-60% CPU usage. When I plug in my 5070 Ti I get 160+ fps at highest/maxed settings without Ray Tracing and 80-100 with Ray Tracing, all at 1440p, and the CPU is still at 55-60% usage.
Which is more than what I get with my P16 Gen 2 (i7 14700HX + ADA 3500 12 GB), where I get 110-120 at the same highest/maxed settings without RT, and about 55-70 with RT on. With eGPU plugged in to that same P16 Gen 2, the same 5070 Ti is pushing 170-ish at maxed settings, and around 100-110 with same settings + Ray Tracing on. All 1440p, of course.
Is a faster CPU faster than a slower CPU? Yes. Does wasting away insane amounts of money for top specs makes sense when a 750€-ish GPU is still going to obliterate those specs even with slightly reduced bandwidth due to its eGPU setup? Well, that's up to each person to decide how much they hate their own money ¯\_(ツ)_/¯
Again, for clarity:
Quote from: Worgarthe on December 12, 2025, 04:44:47I just checked prices in Germany, but for the P16 Gen 3 because it is possible to equip it with up to 24 GB VRAM (Blackwell 5000).
The base version 8 GB (Blackwell 1000) config goes for 2819 € currently. Prices for GPU upgrades are the following:
- 2000 Blackwell (8 GB) +230€
- 3000 Blackwell (12 GB) +790€
- 4000 Blackwell (16 GB) +1420€
- 5000 Blackwell (24 GB) +2980€ (😂)
The rest of the specs is untouched from the base config, so 245HX + 16 GB RAM + 512 GB SSD, with only the display being automatically improved to a 2400p panel (no option to keep the base 1200p panel with that GPU).
So I just added that GPU and literally nothing else, the laptop is now 6039€, that's an increase of +3220€ (!!) just because of 24 GB GPU!
Let's see how much VRAM we can get with 3220€, to put that in an eGPU setup while keeping the P16 Gen 3 at its base price: https://www.idealo.de/preisvergleich/OffersOfProduct/205942083_-geforce-rtx-5070-ti-gigabyte.html
3220/759=4. So four RTX 5070 Ti. Meaning 64 GB of VRAM. Meaning 40 GB more, for the same price. The 5000 Blackwell is similar in performance as a 4070 Super and 3080 Ti. The 5070 Ti is simply far ahead performance-wise, and with four of them at full power of 300W each - it's even more tragic to compare of what you get for the same amount of money... ¯\_(ツ)_/¯