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Frontpage Slideshow | Copyright © 2006-2010 orks, a business unit of Nuevvo Webware Ltd.
Wednesday, 20 October 2010 13:26

Radeon HD 6870 is a 255mm chip

Written by Fuad Abazovic
radeon_logo_new

1.8 billion transistors

We are still getting some last minute details about Barts PRO and XT. This time we can tell you that Barts PRO and XT parts feature a 255mm2 die size. This is quite good as Radeon HD 5850 and 5870 had 334mm2 size. The chip is almost 30 percent smaller and the new one consumes up to 151W in the XT version, which is less than the Radeon HD 5850 series. Radeon HD 5850 had 2.15 billion transistors while the Radeon HD 6850 and 6870 have 1.8 billion.

Radeon HD 6870 has a total memory bandwidth of 134.4 GB/s, 900 million polygon/ sec geometry throughput and 14 SIMD engines, four less than Radeon HD 5850. the total number of stream processors is 1120, while HD 5850 has 1440, the 6870 has 56 texture units, 128 Z/stencil ROPs and 32 color ROPs.

AMD claims that with a good CPU it scores 7730 in 3Dmark Vantage Extreme, most likely with a six core top notch CPU. The maximum board power is as we previously reported 151W, while the idle power stays at 19W which is also better than Radeon 5850's 27W.

Launch day is as Friday the 22nd, as we've already said a few times. All this comes from the mouth of Eric Demers, CTO of graphics group and a very nice chap. Of course he didn't tell us this directly, but these specs is what he showed to AMD's tame press.

Last modified on Wednesday, 20 October 2010 17:56
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Comments  

 
-188 #1 himanshu 2010-10-20 13:56
Lets see how many thumbs down i get... "Gtx 460 rules!!!!"

But seriously I have always been pro Amd radeon. Just the 460 was too overwhelming.. Cant wait to see the comparisons in actual games.
 
 
+61 #2 loadwick 2010-10-20 14:02
That is really quite impressive.

In comparison to the 5850 they have reduced the size by -24%, reduced the transistor count by -16%, reduced many other key performance enhancing specs and yet we are still seeing a chip that easily competes and beats it.

If you extrapolate this to the 6970 where it will have alot more of everything then we are in for a very nice piece of silicon!
 
 
+41 #3 darkpulse 2010-10-20 14:02
well thats a considerable shrink in size for the same manufacturing process. i think it maybe due to the change in the architecture. interesting to see how much the 6950\70 measures.
 
 
+9 #4 arclight 2010-10-20 14:09
Quote:
The chip is almost 30 percent smaller and the new one consumes up to 151W in the XT version, which is less than the Radeon HD 5850 series

&
Quote:
The idle power is better than Radeon 5850's 27W while the maximal board power remains the same.



Isn't this a contradiction or am i confused about the differences between TDP and maximal board power?
 
 
+12 #5 Wolfesteinabhi 2010-10-20 14:19
Quoting arclight:
Quote:
The chip is almost 30 percent smaller and the new one consumes up to 151W in the XT version, which is less than the Radeon HD 5850 series

&
Quote:
The idle power is better than Radeon 5850's 27W while the maximal board power remains the same.



Isn't this a contradiction or am i confused about the differences between TDP and maximal board power?


well its just the way fudo says .."heyy...Get confused alreadyy!!!" lol
except that its good news :-)
 
 
+24 #6 Nerdmaster 2010-10-20 15:10
Quoting loadwick:
That is really quite impressive.

In comparison to the 5850 they have reduced the size by -24%, reduced the transistor count by -16%, reduced many other key performance enhancing specs and yet we are still seeing a chip that easily competes and beats it.
If you extrapolate this to the 6970 where it will have alot more of everything then we are in for a very nice piece of silicon!


That translates to even bigger transistor density! In this area nvidia can't even reach 5xxx chips let alone 6xxxx. :-*
 
 
+13 #7 Nerdmaster 2010-10-20 15:13
What we really want to see now are some benchmarks: 6870 vs 460 1GB oc & 6850 vs 460 768MB.
And i know which is a better choice! 8)
 
 
-24 #8 Tr0y 2010-10-20 15:30
An overclocked GTX460 will still beat the 6870.
 
 
+6 #9 Xploitee 2010-10-20 15:35
Quoting himanshu:
Lets see how many thumbs down i get... "Gtx 460 rules!!!!"

But seriously I have always been pro Amd radeon. Just the 460 was too overwhelming.. Cant wait to see the comparisons in actual games.


http://ic.tweakimg.net/ext/i/imagelarge/1287554085.jpeg Well here it is

And A comparison http://ic.tweakimg.net/ext/i/imagelarge/1287554087.jpeg
 
 
+4 #10 Bl0bb3r 2010-10-20 16:01
Quoting arclight:
Isn't this a contradiction or am i confused about the differences between TDP and maximal board power?



I can't believe I'm supporting fudo but to me he's kinda clear. He said UP TO 151W in the XT version with the Pro version consuming less, while 5850 can't do less, unless we start talking about 5830. So I would go with confused. What happened is that in the manner that they write here on Fudzilla some of the logic is left out to condense articles into these tweets, making some statements less clear, but if you think a bit then they make sense... sometimes.
 

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