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newzhunter
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RV770 final specs revealed newzhunter Mar 28th, 08, 03:42 PM #1









55nm TSMC process
480 SP (4D+1D) - 1D consists of 96 SP
32 TMU
800-900MHz core clock
PCB design similar to RV670
Replace current RV670 price point


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Ske7ch
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Ske7ch Mar 28th, 08, 03:50 PM #2
Let's hope they have good launch drivers.
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kenny_naboo Mar 28th, 08, 04:03 PM #3
Yeah. Drivers please. Cat 8.3 and CrossfireX is broken for WinXP. Can't run 3DMark06 with it enabled. It just crashes.

Let's hope they have good launch PRICES too!

Then mebbe can combine with my 3870X2
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saaya Mar 28th, 08, 04:39 PM #4
50%more shader power, woot

Quote:
Originally Posted by Ske7ch View Post
Let's hope they have good launch drivers.
afaik its not a new design, its an improved rv670, so i dont think there will be any driver hassle.

and thinking of the microsoft report showing 30% of all reported windows crashes were caused by nvidia drivers i dont think ati drivers are looking all that bad
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Last edited by saaya; Mar 28th, 08 at 04:42 PM..
Ske7ch
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Ske7ch Mar 28th, 08, 05:12 PM #5
Quote:
Originally Posted by saaya View Post
50%more shader power, woot

afaik its not a new design, its an improved rv670, so i dont think there will be any driver hassle.

and thinking of the microsoft report showing 30% of all reported windows crashes were caused by nvidia drivers i dont think ati drivers are looking all that bad
Actually, ATI launch drivers for the 3870X2 wasn't too good considering the amount of horsepower it had. And I'm not referring to the stability of the drivers, I'm talking about the performance.
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JoOs7eR Mar 28th, 08, 05:18 PM #6
wootz ~!
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Niceone Mar 28th, 08, 05:50 PM #7
Well the fact that those few cards are using GDDR5 dictates that these cards will launch H2/2008 around same time as GT200.
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If these specs hold truth these high end cards could be great(HD3870 vs. HD4870):
103% more shader performance
171% more texture mapping performance
35% mor ROP performance
95% higher memory bandwith
----
HD4870 X2, HD4870 and HD4850 looks great, but those HD4670 and HD4650..well they'll have hard time against 9600 GT.
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w0mbat Mar 28th, 08, 06:36 PM #8
This is just a dumb copy of a old NHW news regarding the HD4000 specs from Hartware.de.

old NHW news: http://www.nordichardware.com/news,7356.html
original source: http://www.hartware.de/news_44085.html

This is from 15th Feb!
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newzhunter Mar 28th, 08, 06:45 PM #9
This part is new :

55nm TSMC process
480 SP (4D+1D) - 1D consists of 96 SP
32 TMU
800-900MHz core clock
PCB design similar to RV670
Replace current RV670 price point

Hartware.de almost got it right

http://bbs.chiphell.com/viewthread.p...extra=page%3D1
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w0mbat Mar 28th, 08, 06:52 PM #10
55nm tsmc isnt new
480sp isnt new
800-900mhz isnt new (hd4850 clk according to hartware.de = 850mhz)
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Anarion Mar 28th, 08, 07:09 PM #11
Ahh... This mean that the real war begins when AMD releases those.
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PS3-Forever Mar 28th, 08, 07:34 PM #12
anyway, it's very slow card to me
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slim142 Mar 28th, 08, 08:36 PM #13
256bit memory bandwidth? 384 would have been better.
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Niceone Mar 28th, 08, 08:52 PM #14
Quote:
Originally Posted by slim142 View Post
256bit memory bandwidth? 384 would have been better.
Remember that when we are talking about how much data can memory channel pass onwards in one second it's not just about how wide that channel is. We have to look for memory clocks also.

These high end models use GDDR5 memory which can reach ridiculously high clock frequencies which will more than compensate narrow interface.
-----
HD3870 32*2250MHz -> 72GB/s
HD4870 32*4400MHz -> 140.8GB/s
8800 Ultra 48*2160MHz -> 103.6GB/s
HD2900 XT GDDR3 64*1650MHz -> 105.6GB/s
HD2900 XT GDDR4 64*2000MHz -> 128.0GB/s

As you can see: HD4870 has more capable memory channel than HD2900 XT even when memory channel is twice as wide in HD2900 XT
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annhilator47 Mar 29th, 08, 12:21 PM #15
Quote:
Originally Posted by newzhunter View Post
800-900MHz core clock

Replace current RV670 price point
woots 800-900 clock could see e first oc-ed cards to be breaking into the gigahertz mark...

And smthing abt the price point would be giving nvidia sleepless nitez...
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