Variant vs Array

Quick question, for the below, the second loop is faster than the first.

Is this due to the overhead associated with the Variant type? - Granted it's not much slower though

Sub DirectArray()
Dim arr(1 To 10000) As Long
Dim rngArr
Dim x As Long
Dim y As Long
Dim t As Class1


For x = 1 To 10000
    arr(x) = x
Next x


rngArr = Application.Transpose(Sheet2.Range("A1:A10000").Value)


Set t = New Class1
With t
    .StartCounter
    For x = 1 To 10000
        y = rngArr(x) + y
    Next x
    Debug.Print "rngArr: " & .TimeElapsed
    
    y = 0
    
    .StartCounter
    For x = 1 To 10000
        y = arr(x) + y
    Next x
    Debug.Print "arr: " & .TimeElapsed
End With
End Sub