This article from last summer is the most comprehensive comparison I could find. Unless and until someone can produce similar data that actually shows that extra VRAM above and beyond 2GB more cost effectively increases performance (compared to simply increasing compute core count)
I maintain my position that they are full of it.
Where were you in the last 6 months?
Titanfall
Wolfenstein The New Order
Dead Rising 3
Shadow of Mordor
Watch Dogs
Enable max textures and AA in those games and see what happens to a 2GB GPU. Some of those games will even block Ultra textures with such a GPU.
The recommendations also have to be made keeping in mind someone will keep a GPU for a minimum of 2 years:
2015-2017
2GB - budget / low end GPU
3GB - mid-range
4GB - High end
6GB - Ultra high-end
Also, given industry trends in the last 20 years of GPUs, next gen cards more often than not bring more VRAM at every level. Considering current "high-end" cards like 290/290X/970/980 have 4GB, and mid-range 3GB in 280X, where do you think a next gen $200 mid-range card lands with 2GB? You have to keep in mind that 970/980/290X are only high-end because GM200/390X aren't out yet. Games aren't expected to be at a stand-still for the next 2 years.
Further, as mentioned by so many posters here, when people are paying $80-100 more for a 970 with 6% more performance over a 290 at 1080P, why wouldn't a brand agnostic gamer pay $50-75 extra for a near 970 level of performance and 4GB of VRAM in a 290? Of course if 960 is a $159-169 card, it would be more acceptable for it to have 128-bit/2GB layout but 960Ti at $250 surely needs to have a much beefier memory bus/3GB-4GB setup.
128-bit bus?
Wh-
AHAHAHAHAHHAHA
And people will still buy this!
Feels good when my 270X will beat this, man, Nvidia done wrecked themselves now. If people stay smart and wait for the 3XX AMD series, they will get way better cards..
The leaked benches, if true, show performance closer to an R9 280, still a fail for a next gen $200 card though considering HD7950 sold for $280 about 1.5 years ago, had 30-50% overclocking headroom (depending if you consider 7950 V1 or V2) and 3GB of VRAM.
Perf/watt, noise level marketing and obligatory comparisons to another failed mid-range card - R9 285 - and using a reference 290 for noise/temperatures/power usage for comparison will go into overdrive mode to push this card
Normally I stay away from looking at the used card market as it's not a fair comparison but given NV's pricing this generation, it's hard to ignore powerhouse Sapphire Tri-X R9 290 going for
$225, which is basically 95% of $330-350 GTX970 performance!
I would take a gamble on used R9 290 4GB with an awesome cooler such as the Tri-X before buying a new underpowered 128-bit/2GB $180-200 NV/AMD R9 285/960 card.