4 ms·

Does someone know how much VRAM the M1X has? Because I bet it's far less than a 3070 or 3080.

by schleck8 5y ago

mhh__ 5y ago
The memory is unified, and very high bandwidth. No idea what that means in practice, guess we'll find out.
- pornel 5y ago
  It's very high bandwidth for a CPU, but not that great for a GPU (400GB/s vs 440GB/s in 3070 and 980GB/s in 3090).
  - oneplane 5y ago
    On the other hand, it's zero-copy between CPU and GPU.
  - artificialLimbs 5y ago
    >> ...not that great for a GPU... * almost equals the highest laptop GPU available
    - coayer 5y ago
      But it's also a premium product, so it matching a 3070m isn't really above what you'd expect for the cost (but efficiency is another story)
  - minhazm 5y ago
    It's not quite apples to apples. The 3070 only has 8GB of memory available, whereas the M1 Max has up to 64 GB available. It's also unified memory in the M1 and doesn't require a copy between CPU & GPU. Some stuff will be better for the M1 Max and some stuff will be worse.
  - nottorp 5y ago
    Of course, with a 3070 and up you have to play with headphones so you don't hear the fan noise. This is the best feature of the new Apple CPUs if you ask me: silence. Now to wait for a decent desktop...
ribit 5y ago
Up to 64GB…
jbverschoor 5y ago
There's no vram. It's unified / shared memory. There's no M1X. There's M1 Pro and M1 Max
- akaij 5y ago
  I think we can safely shorten them to M1P and M1X.
  - MaxikCZ 5y ago
    Can't allow that. Either M1P and M1M or M1O and M1X.
amne 5y ago
the memory is unified so whatever ram is on there (16,32,64) can be allocated as vram. That's why during the presentation they bragged about how certain demanding 3d scenes can now be rendered on a notebook.
- EugeneOZ 5y ago
  I still didn't get their example about the 100Gb spaceship model - max RAM supported is 64Gb...
f0rmatfunction 5y ago
M1 Pro & Max (and plain M1 too for what it's worth) have unified memory across both CPU and GPU. So depending on the model it'd be up to 32gb or 64gb (not accounting for the amount being used by the CPU). Put differently - far more than 3070 and 3080.

Does someone know how much VRAM the M1X has? Because I bet it's far less than a 3070 or 3080.

mhh__ 5y ago

The memory is unified, and very high bandwidth. No idea what that means in practice, guess we'll find out.

pornel 5y ago
It's very high bandwidth for a CPU, but not that great for a GPU (400GB/s vs 440GB/s in 3070 and 980GB/s in 3090).
- oneplane 5y ago
  On the other hand, it's zero-copy between CPU and GPU.
- artificialLimbs 5y ago
  >> ...not that great for a GPU... * almost equals the highest laptop GPU available
  - coayer 5y ago
    But it's also a premium product, so it matching a 3070m isn't really above what you'd expect for the cost (but efficiency is another story)
- minhazm 5y ago
  It's not quite apples to apples. The 3070 only has 8GB of memory available, whereas the M1 Max has up to 64 GB available. It's also unified memory in the M1 and doesn't require a copy between CPU & GPU. Some stuff will be better for the M1 Max and some stuff will be worse.
- nottorp 5y ago
  Of course, with a 3070 and up you have to play with headphones so you don't hear the fan noise. This is the best feature of the new Apple CPUs if you ask me: silence. Now to wait for a decent desktop...

ribit 5y ago

Up to 64GB…

jbverschoor 5y ago

There's no vram. It's unified / shared memory. There's no M1X. There's M1 Pro and M1 Max

akaij 5y ago
I think we can safely shorten them to M1P and M1X.
- MaxikCZ 5y ago
  Can't allow that. Either M1P and M1M or M1O and M1X.

amne 5y ago

the memory is unified so whatever ram is on there (16,32,64) can be allocated as vram. That's why during the presentation they bragged about how certain demanding 3d scenes can now be rendered on a notebook.

EugeneOZ 5y ago
I still didn't get their example about the 100Gb spaceship model - max RAM supported is 64Gb...

f0rmatfunction 5y ago

M1 Pro & Max (and plain M1 too for what it's worth) have unified memory across both CPU and GPU. So depending on the model it'd be up to 32gb or 64gb (not accounting for the amount being used by the CPU). Put differently - far more than 3070 and 3080.