Steve Simons :
I'm not an expert by any means, so take this with a grain of salt. Would dumping the RAM down to 4 GB have opened up the better graphics card?
The reason why I ask is that budget builders, if they do choose to upgrade anything, typically upgrade RAM (due to the extreme ease at which it can be installed). This way, as they save their pennies they can make the jump from 4 GB to 8 GB while still having the better graphics card that should serve them a bit better and longer than the one in the current system.
Actually, you are right on target. This is a big decision for budget-buyers to consider. And here is where I was most torn also. For me it somewhat comes down to current market prices. The way they rise and fall you may grab an 8GB kit later on for the price of a 4GB kit now. Though the reverse has already happened too. We bought 8GB kits for way less in the past. If budget/funding forced me under R7-260X, I'd have dropped to 4GB.
In this SBM series we run our benchmark workloads from the HDD, not RAM Drive, so it (dropping to 4GB)wouldn't show up in our benchmark charts much at all (beyond a few apps, tops). Yet jumping to R9 270 would have yielded notable gains in frame rates, and even offered higher max playable settings. Yet it also feels like a bit of a cheat on my part; a benchmark win, yet also a "daily livability" loss.
IMO computing life with 4GB isn't as productive or enjoyable. Stuttering or hitching in games, lengthened time just to exit games or switch between tasks, and even web browsing slowing to a crawl when too many tabs are open.
I got in the habit of outfitting 8GB when RAM was more affordable, especially when the entry-level mobo in use is limited to two sticks. This one supports four, so starting with 4GB becomes more practical. There's some potential for compatibility issues when adding very different memory kits. (single-sided+dual-sided) But nothing I'd worry too much about.
I'd say budget builders more than anyone should consider building in steps. That's one good reason to build rather than buy. Be it the mobo, CPU, Graphics, PSU, RAM, It's nice know part(s) of your platform has/have staying power, even if you can't afford to do it all well, right from the start.