Интересно , почему на одинаковых видяхах память разная ?
Выделено красным.
root# nvidia-smi
Thu May 30 21:40:15 2019
+-----------------------------------------------------------------+
| NVIDIA-SMI 340.107 Driver Version: 340.107 |
|-----------------------------------------+--------------------------+-----------------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
|===================+===========+==============|
| 0 GeForce GT 630 Off | 0000:01:00.0 N/A | N/A |
| 20% 30C P12 N/A / N/A | 36MiB / 1023MiB | N/A Default |
+-----------------------------------------+------------------------+------------------------------+