The program Blender does not need much resources itself. But the more you do and the more complex the models become, the more memory is needed - and computing power to move the memory areas (objects) back and forth. One thing that should not be underestimated: Each morph is a copy of the complete geometry (the reason why Poser cuts figures into parts; a head morph is only a copy of the head and not of the whole figure). Plus the texture graphics, which are getting bigger and bigger in the 3D world and must always be kept completely accessible. That quickly adds up to a lot.

If you buy a new system, you might want to make sure that it is upgradeable. Memory should be upgradeable. And also the CPU. This is usually not the case with laptops (you have to buy the whole system again in intervals if you want to modernize). In addition, laptops are more expensive than desktop machines with about the same performance.

Another advantage of desktop machines: If you do want more graphics against all expectations, you can simply use a better graphics card.

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