diff --git a/rocclr/runtime/device/gpu/gpudevice.cpp b/rocclr/runtime/device/gpu/gpudevice.cpp
index c3d4616900..88534a51f3 100644
--- a/rocclr/runtime/device/gpu/gpudevice.cpp
+++ b/rocclr/runtime/device/gpu/gpudevice.cpp
@@ -355,9 +355,15 @@ void NullDevice::fillDeviceInfo(
     // should be the size we can actually allocate at application
     // start.  Note that it may not be a guarantee still as the
     // application progresses.
+#if defined(BRAHMA) && defined(ATI_BITS_64)
+    info_.maxMemAllocSize_ = std::max(
+        cl_ulong(memInfo.cardMemAvailableBytes),
+        cl_ulong(memInfo.cardExtMemAvailableBytes));
+#else
     info_.maxMemAllocSize_ = std::max(
         cl_ulong(memInfo.cardLargestFreeBlockBytes),
         cl_ulong(memInfo.cardExtLargestFreeBlockBytes));
+#endif
 
     if (settings().apuSystem_) {
         info_.maxMemAllocSize_ = std::max(