So AMD 480 is a dud, not nearly the amazing deal after all

[Slimebeast]

shikamaru317 said:

Slimebeast said:

Oh, there's Vega rumours already?!

If it's 60% above Fury X I would accept that, although before the 14nm tech launched I was dreaming of a new AMD GPU being 2.0x Fury X.

60% above the Fury X is exactly twice the performance of a RX 480. Do you really think they can do that in 2016, considering the RX 480 already draws a hefty 160W? That would need serious architectual improvements.

Well, we know Vega has 4096 stream processors, that's 77% more stream processors than RX 480. So assuming Vega has the same clock rate as RX 480, Vega would be 9.1 teraflops, a 77% improvement over RX 480, not a 2x improvement. However, a pure flops comparison doesn't tell you much, because AMD claims that Vega has further architectural improvements over Polaris. It's also possible that Vega will be clocked higher than Rx480, so it is possible for Vega to double RX 480 in flops. Power consumption could be a concern though, it's very unlikely at this point that Vega power consumption will be anywhere near GTX 1080 or even the eventual 1080ti and next Titan, we could be looking at near Fury X power consumption.

Oh yeah, not I recall I've seen Vega rumoured to have 4096 stream processors. But hasn't Fury X also got 4096 stream processors though and is clocked over 1Ghz? And yet Vega is supposed to be 60% faster than it? I don't follow. That would require architectural improvements out of this world.

Personally I don't mind Fury X power use, unless I buy two and do crossfire. Which I likely won't since one Vega GPU probably will cost $650 or something.