Do I need more than 2 case fans for my Asus R9 290x?

[Soaked]

I'm going to be playing games on ultra 1080p and it runs around 70~ degrees Celsius after an hour with only my Corsair 200R stock case fans. I already bought 2 bequiet! 140mm pure wings 2 but I kind of want to return them to save money, not sure if I need them or not plus I only have 1 available case fan connector + 1 CPU fan connector left lol

 

PCPartPicker part list / Price breakdown by merchant

 

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor  (Purchased For $235.00) 

CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler  (Purchased For $30.00) 

Motherboard: ASRock Z97 Anniversary ATX LGA1150 Motherboard  (Purchased For $75.00) 

Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory  (Purchased For $80.00) 

Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive  (Purchased For $50.00) 

Video Card: Asus Radeon R9 290X 4GB DirectCU II Video Card  (Purchased For $300.00) 

Case: Corsair 200R ATX Mid Tower Case  (Purchased For $54.00) 

Power Supply: EVGA 600B 600W 80+ Bronze Certified ATX Power Supply  (Purchased For $30.00) 

Total: $854.00

Prices include shipping, taxes, and discounts when available

Generated by PCPartPicker 2015-01-19 16:57 EST-0500

[XiaoPineApple]

Premium fan is only a small different compare to stock fan.

70c for a 290x is normal.

My 970 on fan at max load was 67c.

so is fine

u can fill all ur fan slot in ur case to help that a lil

[Soaked]

Premium fan is only a small different compare to stock fan.

70c for a 290x is normal.

My 970 on fan at max load was 67c.

so is fine

u can fill all ur fan slot in ur case to help that a lil

Ok thank you, I will return my extra case fans.