I have 2 Radeon Pro W6800's that appear to work fine. The problem is one shows to have 31.98GB of VRAM and the other only 29.98GB? They are both in the same machine, AMD 7950X with 96GB ram running Win 11 Pro 22H2. Here is the partial output of hipinfo just to prove it:
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device# 0
Name: AMD Radeon PRO W6800
pciBusID: 7
pciDeviceID: 0
pciDomainID: 0
multiProcessorCount: 30
maxThreadsPerMultiProcessor: 2048
isMultiGpuBoard: 0
clockRate: 1575 Mhz
memoryClockRate: 1000 Mhz
memoryBusWidth: 0
totalGlobalMem: 29.98 GB
totalConstMem: 2147483647
l2CacheSize: 4194304
gcnArchName: gfx1030
peers:
non-peers: device#0 device#1
memInfo.total: 29.98 GB
memInfo.free: 29.86 GB (100%)
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device# 1
Name: AMD Radeon PRO W6800
pciBusID: 3
pciDeviceID: 0
pciDomainID: 0
multiProcessorCount: 30
maxThreadsPerMultiProcessor: 2048
isMultiGpuBoard: 0
clockRate: 1575 Mhz
memoryClockRate: 1000 Mhz
memoryBusWidth: 0
totalGlobalMem: 31.98 GB
totalConstMem: 2147483647
l2CacheSize: 4194304
gcnArchName: gfx1030
peers:
non-peers: device#0 device#1
memInfo.total: 31.98 GB
memInfo.free: 31.86 GB (100%)