Monday, September 27th 2010

AMD Radeon HD 6700 Series ''Barts'' Specs Sheet Surfaces

Here is the slide we've been waiting for, the specs sheet of AMD's next-generation Radeon HD 6700 series GPUs, based on a new, radically redesigned core, codenamed "Barts". The XT variant denotes Radeon HD 6770, and Pro denotes HD 6750. AMD claims that the HD 6700 series will pack "Twice the Horsepower", over previous generation HD 5700 series. Compared to the "Juniper" die that went into making the Radeon HD 5700 series, Barts features twice the memory bandwidth thanks to its 256-bit wide high-speed memory interface, key components such as the SIMD arrays split into two blocks (like on Cypress), and we're now getting to learn that it uses a more efficient 4-D stream processor design. There are 1280 stream processors available to the HD 6770 (Barts XT), and 1120 stream processors to the HD 6750 (Barts Pro). Both SKUs use the full 256-bit memory bus width.

The most interesting specification here is the shader compute power. Barts XT churns out 2.3 TFLOP/s with 1280 stream processors, GPU clocked at 900 MHz, while the Radeon HD 5870 manages 2.72 TFLOP/s with 1600 stream processors, 850 MHz. So indeed the redesigned SIMD core is working its magic. Z/Stencil performance also shot up more than 100% over the Radeon HD 5700 series. Both the HD 6770 and HD 6750 will be equipped with 5 GT/s memory chips, at least on the reference-design cards, which are technically capable of running at 1250 MHz (5 GHz effective), though are clocked at 1050 MHz (4.20 GHz effective) on HD 6770, and 1000 MHz (4 GHz effective) on HD 6750. Although these design changes will inevitably result in a larger die compared to Juniper, it could still be smaller than Cypress, and hence, more energy-efficient.

Source: PCinLife
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245 Comments on AMD Radeon HD 6700 Series ''Barts'' Specs Sheet Surfaces

#1
pantherx12
Not had driver issues since 9.3s myself.

Any more news about barts?
Posted on Reply
#2
cadaveca
My name is Dave
mdsx1950 said:
Even my 5970s seem to be running without any driver problems. Currently running 10.8.
Maybe its because i haven't OCed the card and left it the way it is.
Same here, but eyefinity has become the bane of my existence. Nevermind that 5970 and Crossfire Eyefinity was supposed to be the only supported config...took till almost February before 5870 got Crossfire and Eyefinity.

Did you get that? 5970 supported Crossfire Eyefinity, but no other Crossfire config supported Eyefinity. Should give you an idea of how truly poor these drivers are...

I dropped back to one card, and one monitor, and barely have any issues. I'm still left with a card that overheats when it's 30c in the room, but I RMA'd one card, and maybe that will fix all my problems...but I am not confident it will, as I still get cursor curruption with Eyefinity and DP monitors. If I take out all the add=ons this gen has in comparison to 4-series, the cards work GREAT!. :shadedshu

pantherx12 said:
Not had driver issues since 9.3s myself.

Any more news about barts?
Nope. With ~2 weeks left before NDA expires, I don't tihnk we'll hear very much. Reviewers for launch should have already received cards, so NDAs are tight on info right now.

What we need is pictures of retail card, heatsink, etc...should go a long way. Of course, this assumes that the OCT 18th date is correct....
Posted on Reply
#3
mdsx1950
cadaveca said:
Same here, but eyefinity has become the bane of my existence. Nevermind that 5970 and Crossfire Eyefinity was supposed to be the only supported config...took till almost February before 5870 got Crossfire and Eyefinity.

Did you get that? 5970 supported Crossfire Eyefinity, but no other Crossfire config supported Eyefinity. Should give you an idea of how truly poor these drivers are...

I dropped back to one card, and one monitor, and barely have any issues. I'm still left with a card that overheats when it's 30c in the room, but I RMA'd one card, and maybe that will fix all my problems...but I am not confident it will, as I still get cursor curruption with Eyefinity and DP monitors. If I take out all the add=ons this gen has in comparison to 4-series, the cards work GREAT!. :shadedshu



Nope. With ~2 weeks left before NDA expires, I don't tihnk we'll hear very much. Reviewers for launch should have already received cards, so NDAs are tight on info right now.

What we need is pictures of retail card, heatsink, etc...should go a long way. Of course, this assumes that the OCT 18th date is correct....
Drivers aren't the best but it serves the purpose.. Atleast for me. :) And i owned an Eyefinity setup till about two months back. :D
Posted on Reply
#4
Wrigleyvillain
PTFO or GTFO
I don't have any ATI driver "problems" per se and really never did. However, in terms of my overall gaming experience (and I hate to admit this btw) I feel I simply get an overall better experience with Nvidia software even with the relatively limited time I've used NV cards compared to ATI. I don't think it's any one reason like so many games are Nvidia sponsored TWIMTBP from the ground up or the existence of great tools like NHancer but rather a combination of things. And probably not everyone would feel the same even having the same hardware and games as I've had.

Experiences like CaDaveCa's leave a bad taste in my mouth though.
Posted on Reply
#5
wolf
Performance Enthusiast
If reviewers have or are now starting to recieve cards, no doubt something will leak somewhere and much jizzing will occur.
Posted on Reply
#6
cadaveca
My name is Dave
Wrigleyvillain said:
Experiences like CaDaveCa's leave a bad taste in my mouth though.
What's really the issue is that there hasn't been any fix for outstanding issues for so long. I've had many cards, RMA'd cards, bought new parts, etc..it's that bit that is most frustrating.

But like I said...originally it was 5970's only for my chosen monitor config, and maybe if I had chosen better in my purchases, I'd not have so many issues. In the end, I was hoping for tri-fire Eyefinity...one gpu per monitor...if one card works well @ 1920x1080 and 8xAA, then 3 should be ideal, right?


:shadedshu


:D


If the 6-series will do Eyefinity right, I'm gonna get 3x 40-inch LCD TVs for it. I was looking last night while shopping for a microwave, and I can get some decent panels for ~$700 locally. I even ahve the wife's approval...

But that damn corrupting cursor issue has got to stop. And I know for sure I'm not the only one with the problem, as it's in the release notes. Thats' a deal-breaker for me.
Posted on Reply
#7
Tatty_One
Senior Moderator
I had HUGE problems with crossfire on my old 4850's and 4890's for most of the early 9.xxx catalyst releases, to the point where I actually ditched my 1gb 4850 crossfire setup which was a real shame as they were palit sonics and were running at 880mhz without voltage tweaks, I managed to keep hold of my 4890 crossfire setup for quite some time as finally Ati sorted issues out on about catalyst 9.5.

having said that, with the single 5850 I have had no issues whatsoever period.
Posted on Reply
#8
mdsx1950
cadaveca said:
If the 6-series will do Eyefinity right, I'm gonna get 3x 40-inch LCD TVs for it. I was looking last night while shopping for a microwave, and I can get some decent panels for ~$700 locally.
Wow that will be one hell of a setup! :rockout:
I even have the wife's approval...
:eek::eek:
Lucky. :p
Posted on Reply
#9
wolf
Performance Enthusiast
cadaveca said:
If the 6-series will do Eyefinity right, I'm gonna get 3x 40-inch LCD TVs for it
i've considered the same thing, freakin EPIC man.

cadaveca said:
I even ahve the wife's approval....
mdsx1950 said:
:eek::eek:
Lucky. :p
either that or crazy, or both :laugh: I can picture the look on her face when she finds you for the first time in your nook of pixels both jizzing and drooling simultaneously.
Posted on Reply
#10
cheezburger
dude...it's already on NDA...so save your excitement or disappointment later when it come to shelve.
Posted on Reply
#15
a_ump
reminds me of 8800GTS. It'll have a sticker or something on it forsure, has to be like an eng sample
Posted on Reply
#16
jaredpace
cadaveca said:
:laugh:


:roll:



:nutkick:
Posted on Reply
#17
cadaveca
My name is Dave
I don't see anything that says Barts....


:D
Posted on Reply
#19
Tatty_One
Senior Moderator
JATownes said:
If this shot is real, wouldn't it say "Built by AMD" instead of "Built by ATI"?
Good point! the fog falls upon us once again.
Posted on Reply
#20
jaredpace
cadaveca said:
I don't see anything that says Barts....


:D
HAHA, okay now?







:rockout:
Posted on Reply
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