Best graphics card for a video editing system

[thefirehairman]

Hi. I know there's a lot of threads here with the simple question ; Which graphics card should I buy. But we all have different needs, and well, I'd like the opinion of some people here before buying.

Here's my built :

Windows 8.1
AMD FX 9590 8 core 5.2GHZ
Asus Sabertooth 990FX R2.0
16GB Ram (might add more eventually)
Corsair H110 Liquid CPU Cooler
64GB SSD, 750gb internal, 1TB external
1000W Power Supply
ATI Radeon HD 4600

So basically, I'll use Vegas Pro 13, Premiere Pro CC, After Effects, AVID Media Composer, Photoshop. Most of the time with 1080p footage and A LOT of layers & FX.

Let's say 300$ is my budget.

OR - If you tell me the advantages of buying a graphics card at 500$ and more ... maybe I'll think about it. I just want a really good system so I'll don't have to worry about random crashes during editing.

Thanks a lot.

 

[Wisecracker]

HIS IceQ X² Turbo Radeon R9 270X

 

[thefirehairman]

Wow. Not really expensive ... And that'll do the job for everything that I need?

 

[Wisecracker]

It's the best bang-for-buck compute ... especially in Vegas.

From Anandtech

Premiere can be set up for multiple HDDs for scratch and rendering ... otherwise you look good.

 

[thefirehairman]

Thanks a lot.

Though I'm from Canada, so I can't order on Newegg USA. On newegg Canada, they sell it for 250$

I found this on Tigerdirect - http://www.tigerdirect.ca/applications/SearchTools/item-details.asp?EdpNo=8689489&CatId=7387 - looks pretty much the same if I'm not mistaken.