ATI Radeon HD 4000 Series discussion

[hurleybird]

RV770 Debut - ATi Radeon HD4850 @ VR-Zone.

Half the pages don't work.

[destr0yer]

hello.

this card is really very hot! 63ºc idle and the cooper heatsink is HUGE hot!

shappire 4850.

[madmossy]

I like how the only pages they do put up makes the 4850 look like crap, rather they took it down totally and posted the whole thing instead of what they have currently.

[jaredpace]

FYI Visiontek Radeon HD4850's are 149.00 + tax without coupon or AR out the door @ BestBuy today

Instore, 25% off all VisionTek products. Good luck.

Who wants 4850 CF on your intel boards for $298?

http://forums.slickdeals.net/showthr...uid=0&t=850075

[spursindonesia]

As expected, there's no way the price in my country would only be 10% more expensive compared to USA price, now it seems HD 4850 really shows it low production cost advantage over competitor, 169-179 US$ seems to be de facto price for it in USA. And the card hasn't really been officially launched, talking about super duper hard launch continuation, LOL.

[horn_]

We no longer need this thread now that the new reviews are out.

What about rv770 discussion?

[Morais]

People still not realizing that this card isnt hot, its the fan that is set to 10~20% at idle and about 60% at load.

[GAR]

imma see if i can get 2 of em.

[gojirasan]

People still not realizing that this card isnt hot, its the fan that is set to 10~20% at idle

That is the reason why it's hotter than Death Valley in August. These chips put out a lot of heat. Active cooling is required. That means a fan. The only reason that the 4850 can get away with single slot cooling is because it was so underclocked. The GPU itself is just a lower binned 4870, no?

[Helmore]

They are in essence lower binned 4870 chips and the top chips will probably go to the 4870X2 in the hopes of keeping power consumption in check on that one. That's my guess though but I can't be too far off as this is also basically what NVIDIA does for their G92 chips and it's probably the wisest thing to do.
BTW, I still have no confirmation on whether PowerPlay is currently working on the 4850. AMD is saying that this is the 2nd generation PowerPlay for the desktop, and 5th for the laptop, so this could mean that drivers for that are not finalized yet. Could anyone confirm this? I remember w0mbat having said so once, but I can't remember where and when. (and my memory isn't all too stellar )

[iTravis]

If the HD4870 is expected to be launch on June 25th then we should have some benchies by now, maybe over the weekend? Besides higher clock and GDDR5, are there any differences between HD4870 and HD4850?

[y2kbos]

We no longer need this thread now that the new reviews are out. Plus the 4850 Preview thread needs to be renamed to the Official 4850 Review Thread.

Perkam

Ahh this is the HD 4000 Series Thread, not HD4850 thread.

I would guess most of the people posting here, will be getting the HD4870/ HD4870X2 and dont really care about the HD4850

As you know the 4870 X2 doesn't use an internal CF bridge to connect the cores... it has some other means ( I dont believe it, but people here says its fact ), if thats true the scaling should be nearly 100 %, as there would be now scaling as the whole point of the 4870 X2 is for the innovation of the gpu industry...

There would be absolutely no point in making if it couldnt do it.

I personally think that tech is much too complex, but if true it should perform better than a 4870 CF... by how much... probably 15 - 25 %

None of that micro stuttering bollix to deal with either

Any one in the know have more info on this?

100% scaling?

[Helmore]

To answer your last part:

I believe they have been posted before on this very thread and I'm not sure what the source was (they are not mine). Source was Extremetech.com, but it has been taken down.
That CrossFireX sideport is probably part of the trick, a dutch site has also stated that the PLX chip will be gone, or at least it's a different (smaller footprint/package) chip. That's because the R700 card is smaller than R680.
Also remember that the Ringbus memory controller is gone now and some sort of a hub has taken it's place.
EDIT: fixed...
EDIT2 : for whatever it's worth for some, here is the official announcement of ASUS' 1GB 4850.

[madcho]

They are in essence lower binned 4870 chips and the top chips will probably go to the 4870X2 in the hopes of keeping power consumption in check on that one. That's my guess though but I can't be too far off as this is also basically what NVIDIA does for their G92 chips and it's probably the wisest thing to do.
BTW, I still have no confirmation on whether PowerPlay is currently working on the 4850. AMD is saying that this is the 2nd generation PowerPlay for the desktop, and 5th for the laptop, so this could mean that drivers for that are not finalized yet. Could anyone confirm this? I remember w0mbat having said so once, but I can't remember where and when. (and my memory isn't all too stellar )

In france cards are selling from the 10 june ... the resellers didn't respect the NDA. ...

Power play is not full active. 500mhz at idle with the 4850

[Macadamia]

In france cards are selling from the 10 june ... the resellers dind't respect the NDA. ...

Power play is not full active. 500mhz at idle with the 4850

Madcho, did you hear any rumour of 175Mhz Powerplay clock, or something near that?

I think there were rumours of that running around.

[natty]

This thread should stay up until at least the 4870 is out.

[drjunk]

Madcho, did you hear any rumour of 175Mhz Powerplay clock, or something near that?

I think there were rumours of that running around.

Even the gtx280 burns less power than hd4850 when idle

[SimBy]

Even the gtx280 burns less power than hd4850 when idle

Yeah it seems drivers don't support PowerPlay yet. That's the reason for high idle temps and power consumption. GPU is running close to full speed even in 2D.

[ownage]

RV770pro codename is "Makedon" named after Terry Makedon, inventor of Catalyst.
RV770XT codename is "Trojan". So that explains the cartoon.

[YukonTrooper]

I have a P35 board and I'm thinking that I'll be held back if I don't go to PCI-e 2.0, considering the Crossfire test done and the final results. Am I right in my reasoning? Need to know if I have to purchase a P45 board or not. I don't plan on going Crossfire, so I won't need X38/X48, unless I can find an X38 used at a good price.

EDIT: OMG some people are stoopid!

[Helmore]

My guess is, you will be fine with PCIe gen 1 as long as you stay single card. There is also some communication between the 2 cards through the PCIe slots when running CFX and this adds to the need for PCIe gen2.

[MomijiTMO]

Oh that cartoon would have been true if AMD had kept a wrap on the 4850. Before the NDA was lifted we all knew how the card performed. This gave nVidia a heads up [9800GTX+].

[bedlamite]

I think that ATi should think about some new slogan for their advertisements like:
"HD4850: New meaning of paper release."

[JohnZS]

Haha yes not meaning to sound too much like an nVidia fanboy again (nVidiot), but ATi have still not quite got a launch right.
However I think that this Launch is perhaps the BEST ATi Launch ever. I mean seriously would you rather reviews come months before cards hit the shelves?

OR what we have now, cards out in the wild and then ATi having to lift NDA's the market being flooded etc before Toms Hardware and other review sites can get their reviews out on paper!

I am looking forward to the HD4870.....but ONLY if they do a 1GB model, I have read around on ASUS site that it looks like they might not be doing a 1GB model...if that is true then I may be saving for the Zotac AMP GTX280!

If not

Then 2x HD4870 1GB cards for me

John

[bill_d]

i think some partners will do a 1gb 4870 but don't know if it will be out with the 4870 512mb or latter