ATI Radeon HD 4000 Series discussion

[LordEC911]

Why would it reduce performance?

Because it would be lowering the core clockspeed, aka the ROP and TMU speed.

I mean look at how well the 96gt performs, and it only has 64 shaders.

Again... comparing across different architectures.

I pretty sure unless games are coded to make use of all those shaders, no matter how good the drivers are we probably won't see as much as a boost as we'd like.

Do you understand how ALUs work?
The game doesn't need to be "coded" for the shaders, at least the way you are thinking about it.

Nah I highly doubt it, more likely than not gddr5 is the reason for the delay, besides fuad has posted I believe 3 times now that the rv770 will see the return of the r600's ringbus so that means there's a possibility of a gddr3 4870 with a 512 bit memoy bus. I generally don't trust the really shaky things fuad says, but when he posts the samething multiple times it generally turns out to be right

GDDR5 is good and ready to go.
RV770 IS a 256bit GPU. Seeing as how they will be using the RV670 PCB with some slight component changes.

[madcho]

Because it would be lowering the core clockspeed, aka the ROP and TMU speed.

Again... comparing across different architectures.


Do you understand how ALUs work?
The game doesn't need to be "coded" for the shaders, at least the way you are thinking about it.



GDDR5 is good and ready to go.
RV770 IS a 256bit GPU. Seeing as how they will be using the RV670 PCB with some slight component changes.

Maybe the GPU was disigned to 512bit, because you can't know when you create the ship if the GDDR5 will be ready or not.

Maybe it's a 512bits GPU with 256bits GDDR5.

But i heard that the GPU could get out with GDDR3/4 memory if the GDDR5 is not ready, and the GPU will be a 4850, the 4870 may wait the GDDR5 about one month.

i think the GPU is ready, the GDDR5 not, and AMD is waiting for RAM.

I suport AMD/ATI, i'm gonna buy a 4870, the 3870 is a great videocard and even if i don't need more 3D power, i'm gonna buy it. And if AMD do only a dual GPU in High end and a 4870 cheap it's going to be very interesting

[AliG]

GDDR5 is good and ready to go.
RV770 IS a 256bit GPU. Seeing as how they will be using the RV670 PCB with some slight component changes.

What would the problem be then? I can't see the die having issues at this point considering its just an upgraded rv670 as you said and taped out months ago. Gddr5 remains the logical explanation, probably there isn't much volume yet, which is one reason why nvidia went with 512bit for gt200 (also the 32 ROPs remains as a big reason)

[Helmore]

Maybe the GPU was disigned to 512bit, because you can't know when you create the ship if the GDDR5 will be ready or not.

Maybe it's a 512bits GPU with 256bits GDDR5.

Very very unlikely, this is because the upgrade to a 512 bits external memory bus ads quite a bit of transistors that would be put to waste when you are primarily planning on using it for a 256 bit to GDDR5. This would be a bit of a problem as pretty much all current rumours point towards a relatively small die, not too much more transistors in other words and the smaller die will make it harder to get all the pin-outs for a 512-bit bus on there.

[zerazax]

I think they mean 512-bit internal... IIRC R600 was 1024-bit internal and RV670 was 512 internal but for memory its 256 but I could be wrong.

[LordEC911]

What would the problem be then? I can't see the die having issues at this point considering its just an upgraded rv670 as you said and taped out months ago. Gddr5 remains the logical explanation, probably there isn't much volume yet, which is one reason why nvidia went with 512bit for gt200 (also the 32 ROPs remains as a big reason)

Who says there is a problem?
We are still expecting a June hard launch.
People were hoping for some boards to get out before the end of May but that seems unlikely seeing as how we haven't even got confirmation on almost anything yet.

[AliG]

Who says there is a problem?
We are still expecting a June hard launch.
People were hoping for some boards to get out before the end of May but that seems unlikely seeing as how we haven't even got confirmation on almost anything yet.

There's word that ATI won't be displaying it at computex, that's why we're wondering on what the problem is

[madcho]

There's word that ATI won't be displaying it at computex, that's why we're wondering on what the problem is

GDDR5 not ready

[DeathReborn]

GDDR5 not ready

Which wouldn't explain a lack of 4850 GDDR3 though

[Macadamia]

The other possibility is that the 4850s could start selling in May...

*ducks*


Why does AMD *HAVE* to showcase them at Computex to be problem-free, I have no idea.
Computex doesn't really draw much attention to glamour GPUs. A private event would KILL Computex 10:1 in coverage.

[AliG]

GDDR5 not ready

which is what I said, which you would have known if you read my posts and why lord was constantly trying to prove me wrong

[MERC!]

It's been very difficult being an ATI fan lately. Well up to the 3870x2 but even then its been hard. But now this? HAHAHA! Nvidea has been on top for so long and ATI nearly got dumped with the AMD merge. Im going to have to replace my Sapphire 3850 1 gigs for one of these babies! YA oh YA! I SO LOVE IT! My Nvidea friends are going to hate me. Im sending them this link as fast as I CAN!

[Leeghoofd]

It's been very difficult being an ATI fan lately. Well up to the 3870x2 but even then its been hard. But now this? HAHAHA! Nvidea has been on top for so long and ATI nearly got dumped with the AMD merge. Im going to have to replace my Sapphire 3850 1 gigs for one of these babies! YA oh YA! I SO LOVE IT! My Nvidea friends are going to hate me. Im sending them this link as fast as I CAN!

Send what ? rumours, speculations ? Nothing is definitive as usual in these threads, we all have to await real benches from trusted sites or reviewers... then spread the word that the green team get's bumped... if I was you lay low and don't make a fool out of yaself...

[Calmatory]

Just a troll. =) Fanbois should be muted on forums. But yeah, at this point no one can really say anything, it's all about speculations an rumours.

[AliG]

hard to control that though, that and probably fugger would lose a lot of traffic if he did that which means less ads+sponsors etc

[Helmore]

hard to control that though, that and probably fugger would lose a lot of traffic if he did that which means less ads+sponsors etc

I don't see any adds here do you? I think FUGGER is more concerned about having a proper site with a respectable community than ads and sponsors. But oh well, that's all off-topic.
As for on topic: I don't think any many of us have anything new to ad (or if they could, they're probably under an NDA)

[adamsleath]

0+0=0

[Nuker_]

At least nvidiots could be banned...

[AliG]

I don't see any adds here do you? I think FUGGER is more concerned about having a proper site with a respectable community than ads and sponsors. But oh well, that's all off-topic.
As for on topic: I don't think any many of us have anything new to ad (or if they could, they're probably under an NDA)

there have been ads occasionally, but its mainly the hardware sponsors I'm talking about, fugger pays for his own equipment (such as his ln2 pots and what not, although I'm sure he trades hardware with kingpin and shamino etc all the time) but a lot of the hardware he reviews are sent to him by various companies

[Calmatory]

At least nvidiots could be banned...

Define nvidiot please.

Why are both companies so strict about info this time? Or os there real info out there and people just call it fake? Or are they hiding something? Oh ati, OH ATI! Don't let us down this time plx!

[Loser777]

I hate getting caught up in the hype... Boy, I remember spring '07 when I was waiting for Barcelona in MAY, with a 40% improvement over C2D.

[madcho]

I hate getting caught up in the hype... Boy, I remember spring '07 when I was waiting for Barcelona in MAY, with a 40% improvement over C2D.

i remember too, but AMD have done mistake with process for barcelona, and ATI made a big mistake with R600, the do a very nice one with the RV670, and i think they changed the design, the RV770 or R770 is just a die schrink with more units ( TMUs and Shaders ).

If they do a RV770 with same frequency with RV660 and respect the price anounced, there will be no place for nvidia in mid range and mid+ range.

And Maybe more on high end with the dual gpu, that could be very very fast.

GT200 is coming with watercooling ... too much heat.

The process for RV770 is nice, it's a dual die we're going to have very cheap gpus and very fast

[Calmatory]

I doubt that they will be THAT fast. Otherwise they wouldn't need duals to be fast.

Well, whichever is faster, I don't case as long as the TDP stays below 95W, and price below $150.

[azza21]

Send what ? rumours, speculations ? Nothing is definitive as usual in these threads, we all have to await real benches from trusted sites or reviewers... then spread the word that the green team get's bumped... if I was you lay low and don't make a fool out of yaself...

Nah bugger that
Lets keep the speculating going, it makes it more interesting and it keeps the threat active and most of all it keeps people wondering. If these website like the Inq and fudzilla didn't post anything but gossip there wouldn't be anything interesting to say on the matter, remember speculate to accumulate.

So here you go:

RV770PRO supports 256bit memory Source: FUDZILLA

"We wrote that RV770XT supports 512bit here and now we have learned that the slower RV770PRO will only support 256 bit and it will use GDDR3.

It looks that the current GDDR5 design sticks with 512 bit memory interface and as RV770PRO will use 256bit GDDR3 memory. The RV770PRO will need a smaller cooler, it is definitely going to end up cheaper of two, and you can bet on a sub-$200 price.

RV770PRO will also end up with a slower clock than RV770XT but we still don’t know what is the current speed plan. It is sampled and it works at least the RV770PRO with 256bit GDDR3 does."

Fud also say:

"We know that some VIP customers have seen and tried GT200. We also know that the card is fast and it is definitely faster than Geforce 9800GTX but we are not sure if it can beat Geforce 9800 GX2.

As we've said on many occasions GT200 based card is a single PCB card with a single chip and a big dual slot cooler. It naturally needs two power connectors but this is something that we are getting used to.

GT200 is something that Nvidia is preparing to show under NDA to many journalists in late May at its headquarters and we wouldn’t be surprised if we see it at Computex 08 as it should be ready to launch around that time."

thats ok peeps your more than welcome

[[XC] gomeler]

Hoping the RV770Pro is just a lower-binned RV770XT so I can ram some stupid volts through them Cannot wait!!!