declare -A DL_PKGS

for file in *.rpm; do
    pkg_info=$(rpm -qp --queryformat '%{NAME} %{ARCH}\n' "$file" 2>/dev/null)
    DL_PKGS["$pkg_info"]+="$file\n"
done

for na in "${!DL_PKGS[@]}"; do
    echo ${DL_PKGS["$na"]} | sort -V | head -n -2 | xargs -d '\n' -r echo --
done