Chinese Renhai Class Destroyer One Third the Cost of Australia's Hobart Class Air Warfare Destroyer and Has About Twice the Firepower

I'm no expert on matters nautical, nor matters martial or military. However I decided to check out the specifications of the Chinese Renhai class missile destroyer which was in international waters off Australia's East coast this week.

It's a monster. It has two banks of universal vertical launch system - or missile tubes - one that accomodates 64 missiles and the other which houses 48. It has 16 more 'missile tubes' than the 64 cell + 32 cell USA Arleigh Burke class missile destroyer.

Source of Following Data: Wikipedia

Class overview
Builders	Changxingdao-Jiangnan Shipyard, Shanghai, and Dalian Shipyard, Liaoning
Operators	People's Liberation Army Navy
Cost	CN¥6 billion (US$888 million) per unit including R&D (FY 2017)[1]
Built	2014–present[2]
In service	2020–present[3]
Planned	16[6]
Building	4[4]
Active	8[5]
General characteristics
Type	Guided-missile destroyer Guided-missile cruiser (per NATO)
Displacement	11,000 tonnes (standard)[7] 12–13,000 tonnes (full load)[8]
Length	180 m (590 ft 7 in)[8]
Beam	20 m (65 ft 7 in)[8]
Draught	6.6 m (21 ft 8 in)[2]
Installed power	6 × QD-50 turbine generators (5 MW (6,700 hp) each) Total: 30 MW (40,000 shp)[9]
Propulsion	COGAG 4 × QC-280 gas turbines (28 MW (38,000 hp) each) Total: 112 MW (150,000 shp)[9]
Speed	30 knots (56 km/h; 35 mph)[2]
Range	5,000 nmi (9,300 km) at 12 kn (22 km/h; 14 mph)[2]
Complement	300+[10]
Sensors and processing systems	Type 346B Dragon Eye (C/S-band) radar[11] X-band radar[11]
Electronic warfare & decoys	Electronic warfare system[11] Type 726-4 decoy launchers[12]
Armament	1 × 130 mm H/PJ-45 gun[13] 1 × 30 mm H/PJ-11 CIWS[13] 1 × 24-cell HHQ-10 short range surface-to-air missile launcher[14] 112 GJB 5860-2006 VLS cells[8] HHQ-9 long range surface-to-air missiles[8] YJ-18A anti-ship missiles[8] YJ-21 anti-ship ballistic missiles[15] CJ-10 land-attack cruise missile[8] Anti-submarine missiles[8] 2 × sets[16] of 324mm torpedo tubes[14] Yu-7 torpedoes[16]
Aircraft carried	2 medium-lift helicopters[17] Harbin Z-9[17] Changhe Z-18[17] Harbin Z-20[18]
Aviation facilities	Stern hangar[17] Helicopter landing platform[17]

Hobart class Air Warfare Missile Destroyer

As you can see from the above data, the Renhai class is about US$888 million per unit including research and development costs. 

The Hobart Class, which has just less than half the armaments, is more than twice the price. The data below shows the unit price of the Hobart class at AUS$3.01 billion, or roughly USD$2.1 billion according to today's exhange rate.

Source: Wikimedia

Source of Following Data: Wikipedia

Class overview
Name	Hobart class
Builders	Navantia (designer) AWD Alliance (project coordinator) ASC (primary shipbuilder) Forgacs Group and BAE Systems Australia (module builders)
Operators	Royal Australian Navy
Preceded by	Perth-class destroyer and Adelaide-class frigate
Cost	A$9.1 billion (2020)[1][2][3] for 3 units + ToT (est.) A$3.03 billion (2020) per unit (est.)
Built	2009–2020
In commission	2017–present
Planned	3
Active	3
General characteristics (as designed)
Type	Guided-missile destroyer
Displacement	7,000 tonnes (6,900 long tons; 7,700 short tons) full load
Length	147.2 metres (483 ft)
Beam	18.6 metres (61 ft) maximum
Draught	5.17 metres (17.0 ft)
Propulsion	Combined diesel or gas (CODOG) arrangement 2 × General Electric Marine model 7LM2500-SA-MLG38 gas turbines, 17,500 kilowatts (23,500 hp) each 2 × Caterpillar Bravo 16 V Bravo diesel engines, 5,650 kilowatts (7,580 hp) each 2 × controllable pitch propellers
Speed	Over 28 knots (52 km/h; 32 mph)
Range	Over 5,000 nautical miles (9,300 km; 5,800 mi) at 18 knots (33 km/h; 21 mph)
Complement	186 + 16 aircrew Accommodation for 234
Sensors and processing systems	Aegis combat system Lockheed Martin AN/SPY-1D(V) S-band radar Northrop Grumman AN/SPQ-9B X-band pulse Doppler horizon search radar Raytheon Mark 99 fire-control system with two AN/SPG-62 continuous wave illuminating radars 2 × L-3 Communications SAM Electronics X-band navigation radars Ultra Electronics Sonar Systems, hull mounted sonar and towed sonar[4] Ultra Electronics Series 2500 electro-optical director Sagem VAMPIR IR search and track system Rafael Toplite stabilised target acquisition sights
Electronic warfare & decoys	ITT EDO Reconnaissance and Surveillance Systems ES-3701 ESM radar SwRI MBS-567A communications ESM system Ultra Electronics Avalon Systems multipurpose digital receiver Jenkins Engineering Defence Systems low-band receiver 4 × Nulka decoy launchers 4 × 6-tube multipurpose decoy launchers
Armament	Missiles: 48-cell Mark 41 Vertical Launch System firing: SM-2 Standard missile RIM-162 Evolved Sea Sparrow missile SM-6 missile (Sydney) Tomahawk cruise missile (Brisbane) 2 × 4-canister Harpoon missile launchers (Brisbane) 2 x 4-canister Naval Strike Missile launchers (Hobart & Sydney) Torpedoes: 2 × 2-tube Mark 32 Mod 9 torpedo launchers firing MU90 Impact torpedoes Guns: 1 × 5"/64 calibre Mark 45 mod 4 main gun 2 × 25mm M242 Bushmaster Mk 38 mod 2 Typhoon RWS 1 × 20mm Phalanx CIWS
Aircraft carried	1 × MH-60R Seahawk