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They might have the identical title, however that does not imply they’ve the identical specs or efficiency
Up to date: Feb 23, 2023 2:14 pm
Desk of Contents
Desk of Contents
With the Ada sequence of graphics playing cards launching again in October with the RTX 4090, it was anticipated to come back into the laptops. So we see how the RTX 4090 laptop computer vs desktop examine.
These specific fashions of laptops began popping out in February. Practically 4 months after the preliminary desktop model got here out.
There’s a number of energy in these to pack in, so how have they managed to take action in such a small type issue? And what has been the compromise for it?
Specs
What used to have an M suffix, the laptop computer graphics playing cards simply share the title with the desktop model. This could be a bit complicated while you truly have a look at what they’re, there’s a vital distinction.
As you possibly can’t count on to suit a full-blown desktop model in such a small measurement. As we’ve seen playing cards develop to 3-4 slots in measurement, there isn’t that a lot house in a transportable slot there may be some compromise.
From the specs beneath, we are able to see that the laptop computer model is a way more cut-down model. It’s not even on the identical GPU die, the identical confusion Nvidia was avoiding with the 4080 12GB unlaunch. So this causes the identical situation because the earlier one.
As such, the die measurement is almost half as large, resulting in a a lot smaller transistor rely. That means there are fewer cores within the card that may’t compute as a lot. With a drop of 41% in CUDA cores and ray tracing cores specifically.
Even the reminiscence has decreased by 8GB and drops in spec to GDDR6. Slowing it down to just about half the bandwidth at 576 GB/s.
The core clocks are underclocked by almost one entire GHz within the base and enhance of the chip. Which all results in the TBP of the processor, solely at 120W. A 330 W drop, permits it for use in a a lot smaller gadget.
RTX 4090 desktopRTX 4090 laptopGPUAD102 (AD102-300)AD103 (GN21-X11)Die size608mm²379mm²Memory24GB GDDR6X16GB GDDR6Memory clock21 Gbps18 GbpsMemory bandwidth1,008 GB/s576 GB/sCUDA cores16,3849,728RT cores12876Base clock2,235 MHz1,335 MHzBoost clock2,520 MHz1,695 MHzTBP450 W120 W
RTX 4090 laptop computer vs desktop efficiency
Trying on the efficiency is the place it actually issues, and it’s as anticipated from the specs. We have a look at Jarrod’s Tech video to see how they carry out in opposition to one another.
And within the 25-game common, you possibly can actually see how a lot weaker the laptop computer graphics card is. The efficiency loss goes from 27% at 1080p to 40% at 4K.
Though it nonetheless averages above 60 FPS at 4K which is spectacular in its personal proper for a laptop computer GPU. Nevertheless it doesn’t examine in any respect to one another.
RTX 4090 Desktop vs Laptop computer 25 recreation common efficiency, supply: Jarrod’s Tech YouTube
Last phrases
As you possibly can see there may be a number of distinction when evaluating the RTX 4090 laptop computer vs desktop GPUs. With a a lot decrease spec of the laptop computer chip, the efficiency is far comparable.
As such it doesn’t make sense for the 2 to be named the identical. And there must be some distinctions such because the M modulator that they used to have. Nevertheless it does nonetheless present the facility of the newer laptops that go nicely in opposition to the options, simply not as a lot because the desktop.
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