Hello i am building a system at the moment and i have put together a system that fits just into my budget, consisting of an i5-3470 processor and the HD 7850 1GB, is there a big difference between 1GB and 2GB VRAM? because if i get the 2GB version, i will have to degrade from an i5 processor to an i3 processor to keep the price under budget, would it be better to get an i3 processor with 2GB 7850 or an i5 processor with a 1GB 7850? By the way i will be playing at 1920x1080, i don't really care about AA and all that stuff.
Definitely go with the 1GB if that is going to let you get an i5. The 2GB version can help with framerates when using ultra settings at higher resolution, but for the most part you won't notice a difference.
Yes but to a certain degree. 2Gb is better than one if you plan on playing at higher resolutions and ultra/higher settings. So I would say it's worth it. Also I would look at the 7870 it's not that much more and it's slightly better.
i advice keeping the I5 and the 1GB V-RAM dont go for an i3 just to get 2GB V-RAM thats a bad idea although in games like BF3 you wont be able to play ULTRA HIGH 1920x1080 because bf3's ultra takes 1.4GB~ish V-ram so
the extra memory has nothing to do with providing extra frames per second... although it might happen. it's there to provide smooth playability at higher settings and resolutions.......... like 1600 and above.