Is the difference between Sapphire HD 7850 OC 1 GB and 2GB (not OC) significantly huge?

Tsunami Chaser

Honorable
Nov 1, 2013
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10,510
Because I am going to get a new graphics card and where I live 2 GB costs $60 more.
I will be playing games like Rome 2 Total War and Shogun 2 Total War.
I will be gaming on a 32 inch T.V. on 1900 x 1080 resolution.
Does 2 GB version gets huge benefit compared to 1 GB version?
Is 60$ more worth 2 GB?
Is 2 GB worth convincing my father to spend an extra 60$?
He limits budget on everything (he will get my 60$ game but not spend it on graphics card).
Is 2 GB worth that much to give me my best shot to convince him?
Because I will only be able to convince him if I know 2 GB is much much much much stronger than 1 GB. Convincing him will be even harder because he also thinks graphic cards are useless everything is done in processor. Thats why till now I have HD 6450 2 GB because some computer technician said a graphic card is needed for gaming.

My other specs are :

Intel i7 2600.
8 GB RAM at 1333 mhz.
2 TB HDD.
PSU at 220 volt 29 amp - 6380 watts.
 
Solution
Yes the additional 1GB of vram will be beneficial in a games like the Total War series. The game renders a lot of textures which eat up vram.

Nice PSU you have btw.