diff --git a/Gems/Atom/RHI/Code/Source/RHI/RHISystem.cpp b/Gems/Atom/RHI/Code/Source/RHI/RHISystem.cpp
index ad3ab119ef..744b688c60 100644
--- a/Gems/Atom/RHI/Code/Source/RHI/RHISystem.cpp
+++ b/Gems/Atom/RHI/Code/Source/RHI/RHISystem.cpp
@@ -18,6 +18,7 @@
 #include <AzFramework/CommandLine/CommandLine.h>
 #include <Atom/RHI.Reflect/PlatformLimitsDescriptor.h>
 #include <AzCore/Settings/SettingsRegistryImpl.h>
+#include <AzCore/std/string/conversions.h>
 
 AZ_DEFINE_BUDGET(RHI);
 
@@ -101,6 +102,8 @@ namespace AZ
             }
 
             AZStd::string preferredUserAdapterName = RHI::GetCommandLineValue("forceAdapter");
+            AZStd::to_lower(preferredUserAdapterName.begin(), preferredUserAdapterName.end());
+            bool findPreferredUserDevice = preferredUserAdapterName.size() > 0;
 
             RHI::PhysicalDevice* preferredUserDevice{};
             RHI::PhysicalDevice* preferredVendorDevice{};
@@ -110,12 +113,15 @@ namespace AZ
                 const RHI::PhysicalDeviceDescriptor& descriptor = physicalDevice->GetDescriptor();
 
                 AZ_Printf("RHISystem", "\tEnumerated physical device: %s\n", descriptor.m_description.c_str());
-
-                if (!preferredUserDevice && descriptor.m_description == preferredUserAdapterName)
+                if (findPreferredUserDevice)
                 {
-                    preferredUserDevice = physicalDevice.get();
+                    AZStd::string descriptorLowerCase = descriptor.m_description;
+                    AZStd::to_lower( descriptorLowerCase.begin(), descriptorLowerCase.end());
+                    if (!preferredUserDevice && descriptorLowerCase.contains(preferredUserAdapterName))
+                    {
+                        preferredUserDevice = physicalDevice.get();
+                    }
                 }
-
                 // Record the first nVidia or AMD device we find.
                 if (!preferredVendorDevice && (descriptor.m_vendorId == RHI::VendorId::AMD || descriptor.m_vendorId == RHI::VendorId::nVidia))
                 {