Originally Posted by PontiacGTX
At 1080p 2gb are enough as far you dont use modded graphics(skyrim-like) or in the future the games would become more gpu demanding and would need more than 2gb on ultra/maximum settings,Basically the hd 7870 performs like gtx titan
(when is not running out of vram) and this deppenda on the game to see better or worse performabce with crossfire than a single card
Even two Hd7870s in Crossfire would barely equal a GTX TITAN...
Never go by brand, go by SKU
Also MSI has some issues with fans going bad, but their cards are more than fine. Their cards have decent noise and temps and the R9 270X Gaming uses the same PCB as the R9 270X HAWK. The problem with the R9 270X HAWK is the Elpida VRAM and VRM heatsinks aren't as substantial as the Sapphire TOXIC's.
With the Sapphire TOXIC R9 270X you have to worry about voltage lock , although it's the best R9 270X
(HYNIX AFR VRAM!) it has a very aggressive fan profile. Some VBE7 BIOS editing is in order if you want to play around with clocks more.
The Powercolor Devil R9 270X has the same issue, there's voltage lock. It also uses Elpidas.
The Powercolor PCS+ r9 270X and HIS IceQ Turbo X2 appear to use PQFN mosfets which are superior to Low RDS(on) but not at the level of DirectFETs. I wouldn't recommend either of these due to the louder fans.
ASUS uses Low RDS(on) mosfets instead of the expensive DirectFETS (integrated shiny heatsinks and higher current potential) & Elpida VRAM. Every review I've seen puts it louder and hotter than the MSI Gaming (which is a cut down HAWK).
Gigabyte has the same problem:
Sapphire/Powercolor have the impression as "value brands" because they carry shorter 2 year non-transferrable warranties and are AMD-only brands. XFX is a value brand trying to lose that image. Club3D is a newly imported from Europe brand that's made by TUL Corp (owns Powercolor and VTx3D also). Gigabyte/ASUS/MSI carry 3 year warranties.
Sapphire is severely underrated, they make all the reference PCBs for AMD and are the exclusive board partner for the AMD Firepro professional graphics line now.Edited by AlphaC - 3/21/14 at 7:00pm