Is it possible that the hardware is limiting the virtual RAM memory in DOSBox-X?

[BridgeHeadland]

Question

As I see it, there are apparently divided opinions about how high you can set the virtual RAM memory (memsize). I find that the limit is 3.5 GB (3584) in my case, while in @Torinde's case he experiences that the limit is 4 GB (4096) (if I remember correctly). I myself have added 4096 as the memsize value, but the start of DOSBox-X still says 3584.

I have checked the performance of my PC device.
Basic Speed: 3.80 GHz
Sockets: 1
Cores: 8
Logic Processors: 16
Virtualization: Enabled
L1 Cache: 512 KB
L2 Cache: 4.0 MB
L3 Cache: 32.0 MB

Can at least some of you compare the performance of your PC/Mac as well, with how high the virtual RAM memory can be increased in DOSBox-X in the same device? I wonder if the performance of the devices actually limits the virtual RAM, and maybe other things as well.
If someone has a computer device with a better performance than mine, preferably far more in every way, I'm extra curious about the virtual RAM memory limitation. I've done my research this summer, and read that some PCs have a basic speed of 9.12 GHz.

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[Torinde]

Going above 3.5GB on 32-bit machines is tricky. What's the usecase here?

I just tried and I'm stuck at 3.5GB even when I enter a bigger value (in DOSbox-X build from 2024-07-16).

I don't think host performance is very relevant for memory size, maybe a little bit, but your host seems quite powerful already. I would assume you need physical RAM to be at least few gigabytes larger than he emulated one (e.g. 1GB-4GB for your host OS, 512MB for DOSbox, 4GB for the guest RAM = rounded up to 16GB host RAM)

some PCs have a basic speed of 9.12 GHz

Where? Is this some ultra-overclocked one? Fastest CPUs I'm aware of are at 6.2GHz (and that's a boost mode).