My displays are IPS (for color rendition) with a 6ms refresh rate. I'm currently using an 8600GT on my i5 8mb computer with 600+ watt power supply. I'm thinking of trying some of the newer games using one of the displays and I'm thinking I really should upgrade my graphics card.....if a new one will be appreciably faster on a 6ms display. My reading tells me I should get a 2gb card, but the 1gb are usually on sale and are far larger than my current card....so I 'm not sure if 2gb is really a need. I've been looking at the new 7790 1gb cards but there are some 2gb 7770 or 650 ti (not boost) cards around at reasonable prices. I'm looking for some guidance...I don't want to overbuy a card that's faster than my display can handle....so give me some guidance.
I believe you have a 1080P monitor and 2 GB is the sweet spot for the resolution nowadays. Many current games can use the VRAM exceeding 1 GB. So, if you don't want to take performance hit when running out of VRAM, take 2 GB card.