Use GPU-Z to figure that out.
Install "amdmeminfo" - not sure if Tytanick has this utility built in already in latest image.
We discussed this utility extensively last year when flashing BIOS from SMOS using atiflash for Linux.
Sample output from amdmeminfo as follows, basically gives you most GPU information including memory type, PCI slot location etc.
root@simpleminer:~/utils# amdmeminfo
AMDMemInfo by Zuikkis <[email protected]>
Updated by Yann St.Arnaud <[email protected]>
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 01:00.0
OpenCL ID: 0
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:01:00.0
Memory type: Micron MT51J256M3
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 02:00.0
OpenCL ID: 1
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:02:00.0
Memory type: Micron MT51J256M3
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 03:00.0
OpenCL ID: 2
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:03:00.0
Memory type: Micron MT51J256M3
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 05:00.0
OpenCL ID: 3
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:05:00.0
Memory type: Micron MT51J256M3
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 06:00.0
OpenCL ID: 4
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:06:00.0
Memory type: Micron MT51J256M3
-----------------------------------
Found card: 1002:67df rev cf (AMD Radeon RX 470)
Bios Version: 113-2E353BU.O4I
PCI: 07:00.0
OpenCL ID: 5
Subvendor: 0x174b
Subdevice: 0xe353
Sysfs Path: /sys/bus/pci/devices/0000:07:00.0
Memory type: Micron MT51J256M3
root@simpleminer:~/utils#