Will my power supply support my upgraded rig?

[SlothPony]

I'm planning on upgrading my rig in the near future. Here is my current setup:

i5 2550k @ 3.4GHz
8GB DDR3 1600MHz
Samsung 840 Pro 256GB SSD
2TB Seagate HDD
Gigabyte Z68A-D3H-B3
Sapphire Radeon HD 7970
Corsair TX750 PSU

When I upgrade my rig, it will look like this:

i7 3770k @ 3.5GHz
16GB DDR3 1600MHz
Samsung 840 Pro 256GB SSD
2TB Seagate HDD
Gigabyte Z68A-D3H-B3
2x Sapphire Radeon HD 7970 Crossfire
Corsair TX750 PSU

Will my Corsair TX750 support this upgrade or will I also need to upgrade my PSU?

 

[ACTechy]

Will my Corsair TX750 support this upgrade or will I also need to upgrade my PSU?

No, you don't need to upgrade.