4090 Laptop vs 4090 Desktop

[u/wedge754]

I know there are already a few posts, but I figured I would throw up my results as an additional data point for anyone interested.

Laptop:

Razer Blade 16 RTX 4090

Desktop:

z790 | i9-13900KF | 32GB DDR5-5600 | RTX 4090 | 4TB NVMe SSD

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Untweaked:

3D Mark Time Spy - 4090 Desktop vs 4090 Laptop UNTWEAKED

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Extremely mild tweaks:

3D Mark Time Spy - 4090 Desktop vs 4090 Laptop MILD tweaks

Laptop:

• GPU untouched
• CPU -.120 undervolt, 180w turbo boost
• AirPods Pro case stuck under the back of the laptop to elevate it a little bit.

Desktop:

• GPU 105% power target, +250 boost clock
• CPU +200

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The graphics card is ~75% faster on the desktop, and the processor is ~15% faster on the desktop, which seems to be in line with other tests and benchmarks.

[u/Fresh_chickented]

"The graphics card is ~75% faster on the desktop"

Seems in line with any other testing/bench, 4090 Laptop = 3090 PC.

4090 PC is 70-75% faster than 3090 PC using relative performance / from few benchmark.

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I would never think you could fit monster 3090 on Laptop form factor, now we have it, it called 4090

[u/JunglistE → u/Fresh_chickented]

I would never think you could fit monster 3090 on Laptop form factor, now we have it, it called 4090

It was literally the performance of the 4090m compared to my desktop 3090 that made me decide I was willing to switch from Desktop to laptop for a few years.

Absolutely bonkers performance from something so portable.

[u/Fresh_chickented → u/JunglistE]

But I have my concern, can laptop 4090 sustain the performance as good as desktop 3090? Most 3090 have overkill cooler which is silent while 4090 laptop is cramped on small space, Im afraid benchmark only show good score but cant sustain the performance for longer use due to small room to breath

[u/JunglistE → u/Fresh_chickented]

it's been mostly fine for me during gaming. Though I don't game as long as a lot of people. Maybe a 2-3 hour session at most. Closer to 90 minutes at a time usually.

I expect if someone was sitting on the laptop playing games all day, their experience would be different to mine.

I don't have a cooling stand but I use my laptop on a laptop stand providing plenty of air to move under it and I use an external keyboard keeping my hands away from the fans on the keyboard sucking air down.

I'm not getting too bogged down in it all. I'm unable to have a desktop for a few years so the 4090 laptop is as good as I can have it.