It is currently Thu Jul 24, 2014 3:17 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 286 posts ]  Go to page 1, 2, 3, 4, 5 ... 10  Next
Author Message
 Post subject: ATI HD 4770: 40 nm, RV740 -- SPCR reviewed
PostPosted: Sun Jan 11, 2009 10:06 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
The successors to the HD 4650 and faster models will show up soon, according to this site.

RV740 replaces the RV730, which is used in the HD4600 series.

RV790 is the successor for the RV770, used in the HD 4800 series.
The site mentions the model number HD 4900, and I'd guess the RV740 will become the HD 4700.
These are not completely new designs, more like shrinked and improved versions of the current ones.
New GPU designs will show up later this year.

Edit: Just have to say that it will probably show up later than march.

Update: More info here.

EDIT BY ADMIN:
Sorry for the minor hijack, but since this thread is already so well developed, it seemed best to make this the forum discussion thread for SPCR's own review ATI Radeon HD 4770: ATI's First 40nm GPU


Last edited by Mats on Wed Apr 29, 2009 2:13 am, edited 3 times in total.

Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 12, 2009 6:30 am 
Offline
Friend of SPCR

Joined: Tue Dec 14, 2004 4:06 pm
Posts: 1439
Location: New Hampshire, US
I've read the 790 will just use a different 55nm TSMC process, not 40nm. The RV740 will be the only 700 series core on 40nm as per information at XS. I'm just relaying that info here. Basically, it's unclear what the RV790 is really going to be built on. Either way, the 740 sounds like my next video card...

_________________
F@H
Oldest Setup
Old
i5-750 | TR AXP-140 | DFI MI P55-T36 | Lan-Gear mITX | HD5850 | Silverstone ST45SF


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 12, 2009 6:47 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
Yeah, I've followed the thread at XS. The RV740 seems to be 40 nm though.


Top
 Profile  
 
 Post subject:
PostPosted: Mon Jan 12, 2009 9:44 am 
Offline

Joined: Thu Mar 27, 2003 5:30 am
Posts: 278
Mats-

Thanks for replying to my other thread quesiton. This looks interesting - I'll wait until March to see what's happening. If you can get 4830/4850 performance on 4700 40nm part, that would be awesome.

Chris


Top
 Profile  
 
 Post subject:
PostPosted: Tue Jan 13, 2009 1:45 pm 
Offline
*Lifetime Patron*

Joined: Fri Apr 04, 2003 6:21 pm
Posts: 4247
Location: Undisclosed but sober in US
Right behind them

http://vr-zone.com/articles/nvidia-40nm ... l?doc=6359

_________________
People who put money and political ideology ahead of truth and ethics are neither patriots nor human beings.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 6:49 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
Guru3D reviewed an early pre-production RV740. Performance is always between the 4830 and the 4850.

One important thing to notice is that the outline print on the PCB for the heatsink is different to the 4850 cooler.
I guess we'll see a new cooler for it, and I really doubt the VF900 is part of the reference design. :)

No power consumption measured.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 7:08 am 
Offline
Friend of SPCR

Joined: Tue Dec 14, 2004 4:06 pm
Posts: 1439
Location: New Hampshire, US
We still have to wait till april/may...annoying! Power should be lower than the 4830, maybe the 6-pin was there beacuse it's an ES, or just for OC headroom. Either way, if the power is below 80W, it's mine.

_________________
F@H
Oldest Setup
Old
i5-750 | TR AXP-140 | DFI MI P55-T36 | Lan-Gear mITX | HD5850 | Silverstone ST45SF


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 7:19 am 
Offline

Joined: Sun Oct 29, 2006 2:46 pm
Posts: 10
Too bad the reference PCB is so much larger than 4670/4650. I'm considering replacing the X850XT-PE in my HTPC with a 4670, no point in waiting for these new cards I guess.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 8:16 am 
Offline
*Lifetime Patron*

Joined: Sat Dec 01, 2007 2:04 am
Posts: 601
Location: UK
Mats wrote:
Guru3D reviewed an early pre-production RV740. Performance is always between the 4830 and the 4850.

One important thing to notice is that the outline print on the PCB for the heatsink is different to the 4850 cooler.
I guess we'll see a new cooler for it, and I really doubt the VF900 is part of the reference design. :)

No power consumption measured.


Interesting article, cheers. I like their summation of the Zalman cooler: "Quite a sight for the eyes, very silent as well." :roll: :lol:


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 8:33 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
jon67 wrote:
I'm considering replacing the X850XT-PE in my HTPC with a 4670, no point in waiting for these new cards I guess.

Exactly what do you mean? The 4670 and RV740 performs quite different.
And what's the problem with the length? It's not that long, and definitely shorter than a ATX board.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 10:20 am 
Offline
*Lifetime Patron*

Joined: Wed Jan 12, 2005 10:47 am
Posts: 1501
Location: Bucharest, Romania
Rumors were that the 40 (45) nm process at TSMC was in a sorry state, meaning lots of leakage.
That's why the next generation GPUs from both AMD and nVidia are delayed.
I wished this RV740 to draw as much power as the 4670 and have performance close to the 4850, but I doubt it.
At release we may find out that it uses as much power as the 4830. I still hope I'm wrong! :wink:


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 11:47 am 
Offline

Joined: Sun Oct 29, 2006 2:46 pm
Posts: 10
Mats wrote:
jon67 wrote:
I'm considering replacing the X850XT-PE in my HTPC with a 4670, no point in waiting for these new cards I guess.

Exactly what do you mean? The 4670 and RV740 performs quite different.
And what's the problem with the length? It's not that long, and definitely shorter than a ATX board.

From the previews linked the HD4750 appears to be significantly longer than the X850XT-PE I now have, and which is the abolute maxium length allowed for in my HTPC... without cutting in the chassis. Within this limitation the best upgrade for now and the near future appears to be a HD4670. That's what i meant with "too bad"... too bad the RV740 VGAs with their improved performance don't come on smaller PCBs.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 12:17 pm 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
Yeah, I checked and it looks like it's 20 mm longer than your card.
It's quite possible that smaller cards will show up (especially since it won't need as much power as the 4830), just like it did for the 4850.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 12:55 pm 
Offline

Joined: Sat Mar 17, 2007 3:17 am
Posts: 780
Location: Croatia
Since it has an extra power connector, it's probably going to be power-hungry :(

I really like my 4670, despite not cooling it passively (yet). There's something strangely pleasing in being able to tuck away the PEG cable along with other unused ones. Would be even better if I had a modular PSU :)


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 1:07 pm 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
Even though it's clearly a Zalman heatsink, it isn't the stock fan.
And it's not only the ATI sticker that anyone could've put there, the fan blades looks different and are ATI red.

Now I woudn't think that was strange if was a retail part, but it isn't.

Matija wrote:
Since it has an extra power connector, it's probably going to be power-hungry :(

That is not something you can tell from looking at a pre-production card.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Feb 25, 2009 1:23 pm 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
I don't care that much about max power draw, because I guess it will be lower than the 4830 anyway.
The important thing is that it will use less power in idle than the 4830, and that it will be much faster than the 4670.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Feb 26, 2009 8:38 am 
Offline
Friend of SPCR

Joined: Sun Mar 21, 2004 5:47 pm
Posts: 867
Location: Phoenix, AZ
Tzupy wrote:
Rumors were that the 40 (45) nm process at TSMC was in a sorry state, meaning lots of leakage.
That's why the next generation GPUs from both AMD and nVidia are delayed.


Just curious, but if AMD already has a number of 45nm CPU's out, why didn't they release 45nm GPU's at the same time? Is it because they wanted to do 40nm for the GPU chips? It seems to me that if they'd have had 45nm GPU chips ready to go at the same time Phenom II came out last month, they would have smoked nvidia by at least 6 months, minimum.

_________________
Phenom 1090T / 9800GTX+ / Antec P180 / Seasonic S12-600


Top
 Profile  
 
 Post subject:
PostPosted: Thu Feb 26, 2009 8:51 am 
Offline

Joined: Sat Mar 17, 2007 3:17 am
Posts: 780
Location: Croatia
AZBrandon wrote:
Tzupy wrote:
Rumors were that the 40 (45) nm process at TSMC was in a sorry state, meaning lots of leakage.
That's why the next generation GPUs from both AMD and nVidia are delayed.


Just curious, but if AMD already has a number of 45nm CPU's out, why didn't they release 45nm GPU's at the same time?

Because of what's quoted above ;)

AMD makes its CPUs in its own fabs, whereas the GPUs are all made in TSMC fabs.


Top
 Profile  
 
 Post subject:
PostPosted: Thu Feb 26, 2009 12:06 pm 
Offline
Friend of SPCR

Joined: Tue Dec 14, 2004 4:06 pm
Posts: 1439
Location: New Hampshire, US
Matija wrote:

AMD makes its CPUs in its own fabs, whereas the GPUs are all made in TSMC fabs.


Exactly, it's a capacity/convenience thing at the moment. They can't spare manufacturing time, and they can't spare the time/money to make GPUs on the SOI process vs the Bulk that TSMC uses.

_________________
F@H
Oldest Setup
Old
i5-750 | TR AXP-140 | DFI MI P55-T36 | Lan-Gear mITX | HD5850 | Silverstone ST45SF


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 02, 2009 6:55 am 
Offline
*Lifetime Patron*

Joined: Wed Jan 12, 2005 10:47 am
Posts: 1501
Location: Bucharest, Romania
Well, it seems March was too optimistic, but read this: Radeon HD 4890 (RV790) & HD 4770 (RV740) Launch On Apr 6th
Link: http://vr-zone.com/articles/radeon-hd-4 ... l?doc=6664


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 02, 2009 6:59 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
I mentioned it in the first post but I guess most people didin't see it.
Thanks for the link!


Top
 Profile  
 
 Post subject:
PostPosted: Thu Mar 05, 2009 2:09 pm 
Offline
*Lifetime Patron*

Joined: Fri Apr 04, 2003 6:21 pm
Posts: 4247
Location: Undisclosed but sober in US
Remember, a watched pot never boils.

http://www.theinquirer.net/inquirer/new ... m-revealed

_________________
People who put money and political ideology ahead of truth and ethics are neither patriots nor human beings.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 20, 2009 7:03 am 
Offline

Joined: Fri Mar 20, 2009 6:38 am
Posts: 6
Location: Balik Troodon
Matija wrote:
AMD makes its CPUs in its own fabs, whereas the GPUs are all made in TSMC fabs.


They come into joint venture with TSMC on the road to establish The Foundry, so the only reason might be cause they still don't have 45nm bulk process (nor intention to develop one) and SOI is too expensive, too complicated and doesn't provide any gain in GP-GPU world.


Top
 Profile  
 
 Post subject:
PostPosted: Fri Mar 20, 2009 7:25 am 
Offline

Joined: Fri Mar 20, 2009 6:38 am
Posts: 6
Location: Balik Troodon
Tzupy wrote:
Rumors were that the 40 (45) nm process at TSMC was in a sorry state, meaning lots of leakage.
That's why the next generation GPUs from both AMD and nVidia are delayed.
I wished this RV740 to draw as much power as the 4670 and have performance close to the 4850, but I doubt it.
At release we may find out that it uses as much power as the 4830. I still hope I'm wrong! :wink:


I hope you're wrong too but somehow i doubt it :(

It more and more lookalike r430 @110nm release when they were at the apex of their power-performance ratio on 130nm process. It resembles that they only cutting down expenses cause 256bit PCB and bigger 55nm (250mm2) chip hardly are profitable at sub-100USD price range.

I would be pretty disappointed if rv740 doesn't came out in 1GB flavor and with better memory BW cause from test the only problem lies in poor BW considering scalability of 40nm first chip. And it would be pretty fair if whole card @750Mhz wouldn't suck more than 90W cause usually moderate estimations on new (half-)nodes, if they dont hit the gold mine with minimal leakage thru few nodes, are in 25-30% power reduction at the same clock and with the same functionality. I'm still waiting for 32nm bulk counterpart (rv830?) at the end of the year directly from Dresden.

At the end i'm pretty surprised they came up with 8x (80-4-2) configuration cause that's definitely not something well fitted for the htpc. Even I think x850-x1950pro-hdX6X0-hd47X0 have the same length. And hope that it' wont suck more than 10W in idle mode cause these rv770 with 30-40W in idle mode is more than ridiculous. At least for ATi that still didn't came up with real counterpart to HybridSLI.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Mar 24, 2009 6:00 pm 
Offline

Joined: Wed Oct 15, 2008 5:01 pm
Posts: 50
Location: Midwest
I'm looking forward to this card, too.

Fudzilla says the desktop cards have been delayed until May. Apparently ATI wants all of the first RV740 chips to go to the mobile version. Which is great for laptop buyers, I guess, but not for me- I want it!


Top
 Profile  
 
 Post subject:
PostPosted: Tue Mar 31, 2009 6:19 am 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
The 4770 is supposed to be launched May 4, look here.
The picture shows a dual slot cooler with at least one heatpipe. It's a bit surprising to see a the metal frame at the top of the card, it just looks . . expensive. The price should be the same as for the 4830.

I don't know what to expect of the power consumption under load, but I'm pretty sure the idle consumption will drop significantly.

RV790 should show up very soon, probably the next week. Nobody knows if or when it will be manufactured in 40 nm instead, but it could happen quite soon (more rumors!). That doesn't mean that such a product must end up in retail though.
The 40 nm process was bad, it's however hard to tell exactly when and for how long it was bad.


Top
 Profile  
 
 Post subject:
PostPosted: Tue Mar 31, 2009 12:54 pm 
Offline

Joined: Sun Dec 09, 2007 1:19 am
Posts: 104
Location: Moscow, Russia
Mats wrote:
The 4770...
The picture shows a dual slot cooler with at least one heatpipe...
I don't know what to expect of the power consumption under load, but I'm pretty sure the idle consumption will drop significantly.

They list GFLOPs and GFLOPs/W, so it's 80 W. No gains from 40nm, as predicted.
Wonder how just 1 heatpipe (bad) / exhausting hot air (good) will balance out.

_________________
Spring 2008 build with upgrade. Intel Core 2 Duo E8200, Scythe Ninja B w/Slipstream @ ~ 700-960 (too high), Gigabyte GA-P35-DS4, 2x2 GB DDR2-800 CL5 Samsung, nVidia GeForce 9800GT 55 nm, AC Accelero S1 passive; WD Caviar GP 1st gen 500 GB, Pioneer DVR-215D; Antec P182, Antec Neo HE 430W, 2x Scythe S-Flex 800 top and back exhaust, 1x on middle HDD cage. CPU 27, 45; GPU 41, 56


Top
 Profile  
 
 Post subject:
PostPosted: Tue Mar 31, 2009 1:10 pm 
Offline

Joined: Fri Dec 26, 2003 6:54 am
Posts: 3009
Location: Sweden
Elvellon wrote:
They list GFLOPs and GFLOPs/W, so it's 80 W. No gains from 40nm, as predicted.

Yeah it says so in the link I posted, but that doesn't really have to be the truth in real world tests. I suspect it could be higher than 80 W, just look at the cooler.
Or, just like the X3 720 is rated for a quite theoretical 95 W but uses <55 W during Prime95, AMD and I have different ways of measuring power consumption.
That's why I don't know what to expect.
Elvellon wrote:
Wonder how just 1 heatpipe (bad) / exhausting hot air (good) will balance out.

I don't see how 1 heatpipe would be bad, compared to the probably hotter 4850 which have no heatpipe at all.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 01, 2009 1:00 am 
Offline

Joined: Sat Oct 18, 2008 6:30 am
Posts: 352
Location: Moldova, exUSSR
Image

Great card! Does it have the attachable power connector? 80W is nearly 75W, which is PCI-E supplying power limit.

_________________
G2020 2.9GHz, Gigabyte GA-B75N, D9PFJ 2x4Gb @DDR3-1333 1.2V, Samsung 840 Pro 128Gb + HM321HI 320Gb, TS8XDVDRW-K, Foxconn RS-233 FX-250T, Samsung 910T. Idles (w/o display): AC 18W


Top
 Profile  
 
 Post subject:
PostPosted: Wed Apr 01, 2009 4:16 am 
Offline

Joined: Sun Dec 09, 2007 1:19 am
Posts: 104
Location: Moscow, Russia
Mats wrote:
just look at the cooler.

A theory at a Russian language forum behind a site that produces part of xbitlabs.com transalted content (so, respectable :)) is that AMD is overcompensating the inadequate 4850 cooler, possibly due to vendors complaining.

Mats wrote:
That's why I don't know what to expect.

OK.

Mats wrote:
I don't see how 1 heatpipe would be bad, compared to the probably hotter 4850 which have no heatpipe at all.

Yeah, you're right, I was probably thinking of aftermaket coolers and the 8800 GT.

Ksanderash wrote:
Does it have the attachable power connector? 80W is nearly 75W, which is PCI-E supplying power limit.

Looking at the posted picture and another one here, I think I can see it.

_________________
Spring 2008 build with upgrade. Intel Core 2 Duo E8200, Scythe Ninja B w/Slipstream @ ~ 700-960 (too high), Gigabyte GA-P35-DS4, 2x2 GB DDR2-800 CL5 Samsung, nVidia GeForce 9800GT 55 nm, AC Accelero S1 passive; WD Caviar GP 1st gen 500 GB, Pioneer DVR-215D; Antec P182, Antec Neo HE 430W, 2x Scythe S-Flex 800 top and back exhaust, 1x on middle HDD cage. CPU 27, 45; GPU 41, 56


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 286 posts ]  Go to page 1, 2, 3, 4, 5 ... 10  Next

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group