still showing 32 ROPs. maybe they have some really odd architecture for the GCN cards.
32 rops would be death for this card.
still showing 32 ROPs. maybe they have some really odd architecture for the GCN cards.
alachua said:I'm guessing the sites who have a good relationship with AMD (read: They actually honor NDAs) already have the cards and are finishing up the reviews for when the NDA lifts on Thursday.
Yeah... the 4x chips probably means it ends up 128bit.
And the fastest clocked chips memory settings AMD has are the 6970's around 1375mhz (5500).
So at best that 7770, will come out with 88gb/sec memory bandwidth at stock. Unless AMD found some way to get memory clocks up.
Radeon HD 7770 (guessing) = ~88 gb/s memory bandwidth
Geforce 550 ti = 98 gb/s memory bandwidth
Geforce GTX 460 SE = 108 gb/s memory bandwidth
Radeon HD 6850 = 128 gb/s memory bandwidth
It ll probably end up slower than the 460 SE, but might have a shot at the 550ti in terms of performance.
a stock 550 ti @1920x1200 is around 13% faster than a 5770 on avg.
My guess is the 7770 is there to take that back, and equal the 550 in perf.
From the original leak of this board shot indicates that there are 8 mem chips, so 4 more on the back side..
Just like it’s the case with Juniper XT, the HD 7770 requires only a single 6-pin PCI-e connector, which seems to imply that its power consumption is set at a little over 100W.
Two-way CrossFireX is also supported by the AMD graphics card and the reference design includes four GDDR5 memory chips, which seems to indicate the presence of a 128-bit wide memory controller.
32 rops would be death for this card.
i'll have a preview up tonight@Boxleitnerb
I think apoppin, ment it as sarcasm, going by the innocently whistling smily.
Doesnt make sense that a 7990 is only 40% faster than a 580... a 6990 already is something like that.
death.. no
stupid, yes
Also, if the card is not 30% but 50-60% faster than HD6970, would that change your mind? Or would you need it to be at least 100% faster?
.
We'll have to see, but what I like about the idea of approx 100% more performance than a 6970 is that I could buy a 2500k, 16gig ram and a 7970 and live happily ever after for presumably a long time, ie, the whole PC would be a good mix of powerful components, whereas a 6950/70 could easily be overwhelmed by any number of games next yr.
The beauty of buying a powerful card/part now is that you get the benefits of it immediately vs a buy a $250 GPU every 12months approach.
Wow, looks expensive...I hope its worth it.
are we sure we can compare GCN cores to VLIW4 cores?
My friend I don't buy cheap mobo's or PSU these days.....too many dead systems taught me otherwise, lol.
Cheap mobo's? Yes. Power supplies? No.
Cheap mobo's? Yes. Power supplies? No.
Seems kind of odd that those slides compare the 7970 to a 5870 (n/m, only the second slide was)... Why not compared to a 6970? We get that 5D shaders had a lot of utlilization issues, but 4D was supposed to improve that a bit. However, I suppose the chart wouldn't look as cool if it only showed a 10% improvement... Maybe they should have compared it to R300? I kid...
the 7970 is not looking so so good here. apoppin acts like it could be slower the 6970 in some cases. it looks like the gpu division might have followed the cpu division's handbook. :biggrin:
http://alienbabeltech.com/abt/viewtopic.php?f=6&t=23899
the 7970 is not looking so so good here. apoppin acts like it could be slower the 6970 in some cases. it looks like the gpu division might have followed the cpu division's handbook. :biggrin:
http://alienbabeltech.com/abt/viewtopic.php?f=6&t=23899