eric4277 :
Their roadmap showed Maxwell to release in 2014, not 2015. Would probably be this time around 2014. I am worried about how much the 8000 series refresh of the 7000 series will improve making these 700 series cards worthless or not.
Yes, it will be INTRODUCED next year. I listed it mainly as another reason to wait for a full platform upgrade in 2015. Maxwell will be released next year, but in 2015 when the rest of the platform is coming into play the Maxwell refreshes will be out or coming out. I guess you could grab up the first of the Maxwell's (8xx) but if your're like me and waiting for a FULL platform upgrade in 2015, then mind as well grab the new Maxwell's (9xx). The numbers over the last 7 years tend to show a biggest increase of performance with the refreshes. This is mainly due to manufacturers weeding out bugs and maximizing the architectures potential.
I think the new Sea Islands (Radeon HD 8xxx) should be giving the green camp (Nvidia) a hard run for their money. Though AMD fans will have to wait a little while longer as Sea Islands wont be introduced until later this year at the soonest, though most reports show it as a Q1 2014 release. AMD stated that their GFX products to be postponed, as AMD is re-structuring their company to avoid total bankruptcy. In this process their GFX products are getting delayed, which would put it on par with the release of AMD's "Piledriver" FX CPU, as the Desktop (FX) and Server variants wont be released until 2014. Only the Mobile Piledrivers (APU's)will see light in 2013.
The last leaked report I read showed a mid grade 8850 to be on par performance wise as a GTX 670, at almost half the cost. If thats the case, Im anxious to see what numbers a Radeon HD 8970/8950 will spit out.
The 8xxx series is not a refresh of the 7xxx series (7xxx series was a refresh of the 6xxx series "Northern/Southern Islands"), not sure where you got that from. Though some of the lower end models will be re-brands (AMD has done that many times now). 8770 and up are all on the new GCN core codenamed "Sea Islands" followed by it's refresh "Volcanic Islands" (Radeon HD 9xxx).
Since 2005, the best rule of thumb when determining if a GFX series is a refresh or not, is to look at the very first number. If it is a even number it is a new architecture, if it is an odd number its a refresh. Intel has also been following this pattern since 2010 with their CPUs.