So, The "new" radeon R7 370 is a rebrand of the R7 265, which is a rebrand of the HD 7850. I am just curious how the 370 somehow beats the 7870/270/270x/7870XT as its a weaker version of the Pitcairn Archetecture. Is it all in the drivers? how is it possible?
The 370 is a 7870 (R9 270/X) NOT A HD7850
Nope. the R7-370 is a factory overclocked R7-265. not a 270/270x
As for why it's performing better than a 7850 or 270, it's primarily due to drivers and factory overclocks. it shouldn't be performing faster than a 270 in all honesty. but if it does it's cause of drivers.
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nice link :D
The other thing is, why would AMD use the cut-down version of the chip instead of the full-fledged Pitcairn?
R7 265 apparently has the same core as the 270, Curacao Pro,so it makes sense that the same architecture would perform better when overclocked, right? The 370 runs on Trinidad Pro which is a refresh of Curacao Pro. 270X is Curacao XT
HD7850(265) = Pitcairn PRO
HD7870(270) = Pitcairn XT
There both Pitcairn (new name code 'trinidad' still a Pitcairn chip) just updated dosent make any sence to use the lower of the 2 chips.
Because the OEM version of the 370 is R9 not R7 so the R9 would run on an XT architecture.
R7 265 overclocks like a motherfucker. It's one of the weirdest cards AMD has ever made. I have a factory overclocked 265 with core clock of 955Mhz and I can still OC it to 1125MHz without increasing the voltage. Perhaps I was lucky. Still, R7 370 with 4Gb is really nice at that price point.
I had a sapphire 7850 that ran at 1200mhz allday long as a temp card
its $180 for the 4GB version.
the R9 270 and the R9 270x have the exact same GPU, the only difference is the clock speed. the r7 265 is Curacao/Pitcairn PRO, and the 270/270x is Curacao XT/Pitcairn XT