ATI Radeon HD 4000 Series discussion

[spicypixel]

Mhmm anyone brainstorm on potential non-PLX communications for the R700 boards then? (trying to get back on topic)

[Menhir]

yeah and saying "no problem" everytime someone distributes wrong informations (crossfire of 4850 is better then the gtx in crysis) and 2i understand you that you told us you have cards and will make benchmarks" and some hours later "no benchmarks because its not fair" realy helps to stop whis wrong informations?

[OBR]

I have cards, some photos (now deleted) was posted earlier ... as a proof. But if i publish some results, our magazine, me and my supplier will have many problems. Nobody wants the problems, and i decided no break NDA. Thats all, and some crying babies here have to wait for official launch.

And AMD guys (reading this thread) ... pay more attention on your samples and dont call me AGAIN! I am not under NDA, and i can do anything i want ... If you will bother me again, i will post everything results i have !!!!!!

[STaRGaZeR]

maybe he just not some geeks and likes watching euro 2008??

LOL

Always the same with this guy

[Sly Fox]

Mhmm anyone brainstorm on potential non-PLX communications for the R700 boards then? (trying to get back on topic)

As it was explained to me by a user here... Who I believe to be reliable...

The chip communicates instead right through the memory, giving it around 160 gb/s to work with as opposed to that crappy old PLX chip. Due to this, it allows the GPU's to share memory and work together much more effectively. More like a dual core CPU than the traditional "dual" graphics card.

This is of course an oversimplification and what have you, but I am not very knowledgeable about the inner workings of cards, just how to OC them

This could be 100% totally wrong, and it is definitely what I would call hearsay at this point. However, again, IMO this info sounds reasonable.

[Menhir]

lol you are a lier, you said you have no NDA

and your pictures could be from everywhere

there are many pictures of 4850 in web since a couple of days

[w0mbat]

I have cards, some photos (now deleted) was posted earlier ... as a proof. But if i publish some results, our magazine, me and my supplier will have many problems. Nobody wants the problems, and i decided no break NDA. Thats all, and some crying babies here have to wait for official launch.

Right decision.

[fng77]

I am sure, you can wait for two weeks for launch. I know, my decision is not fair to users here, but it is fair to AMD ...

I think i kind of strange that it took you so long to realise that?

Why the post with the big letters "I HAVE THE 4850...and so on.

You should now people will get anoyd with statements like that or are you totally new in the game? you advertise with how many MB:s you have tested so i guess not!?

[spicypixel]

And AMD guys (reading this thread) ... pay more attention on your samples and dont call me AGAIN! I am not under NDA, and i can do anything i want ... If you will bother me again, i will post everything results i have !!!!!!

LOL, AMD's hes serious, think of the women and children!

[cstkl1]

http://forum.lowyat.net/topic/235024
second page

buy it.. bench it.. be the first..

be first to do the review and stop bothering him ppl..
he already explained.. the supplier will be in trouble...

[spicypixel]

http://forum.lowyat.net/topic/235024
second page

buy it.. bench it.. be the first..

be first to do the review and stop bothering him ppl..
he already explained.. the supplier will be in trouble...

================================================== ===========

GIGABYTE GRAPHIC CARDS
*2 Years Warranty*

Gigabyte ATI PCI-E X16 Graphic Cards:

Gigabyte Radeon HD4850 => RM820
# 512MB 256Bit DDR4 480 Pipeline
# GPU 650MHz, 1728MHz Memory Clock
# HDTV, Dual DVI, DX10
Code: GV-RX485512 2.0

I call bull for using DDR4, and 650mhz AND 480 SP's, doesn't add up

[Bhairava]

I have cards, some photos (now deleted) was posted earlier ... as a proof. But if i publish some results, our magazine, me and my supplier will have many problems. Nobody wants the problems, and i decided no break NDA. Thats all, and some crying babies here have to wait for official launch.

And AMD guys (reading this thread) ... pay more attention on your samples and dont call me AGAIN! I am not under NDA, and i can do anything i want ... If you will bother me again, i will post everything results i have !!!!!!

LOOOOOOOOOOOOOOOOOOOOOOOL!!

Crying babies?
You, stupid ridicolous idiot, shame on you....How can you call us crying babies?

[Helmore]

As it was explained to me by a user here... Who I believe to be reliable...

The chip communicates instead right through the memory, giving it around 160 gb/s to work with as opposed to that crappy old PLX chip. Due to this, it allows the GPU's to share memory and work together much more effectively. More like a dual core CPU than the traditional "dual" graphics card.

This is of course an oversimplification and what have you, but I am not very knowledgeable about the inner workings of cards, just how to OC them

This could be 100% totally wrong, and it is definitely what I would call hearsay at this point. However, again, IMO this info sounds reasonable.

That way of 2 chips working together sounds wonderful, just not very realistic in my eyes. We are still not sure if there even is any special trick to the way they cooperate at the moment.
I think it's a bit more realistic if they made a high speed (faster than 2e gen PCIe 16x) interconnect between the chips and they could do it with some form of bridge chip. This bridge chip then has 1 second gen PCIe 16x connection, for communication with the rest of the system, and 2 high speed connections with the GPUs. These high speed connections can use the extra space for connection 'pads' on the GPU die that are freed up by not having a direct PCIe connection to the GPU. Let's see if I can make some form of drawing of it. Like this:

          |RAM| |RAM|                 |RAM| |RAM|
           ||    ||                     ||   ||
|RAM| =              pb            pb             = |RAM|
          ||GPU 0|| === ||Bridge|| === ||GPU 1||
|RAM| =                     ||                    = |RAM|
                            || 16x PCIe
pb= proprietary bridge

There are of course also some RAM chips on the back of the card.
This proprietary bridge can be of much higher speed than what PCIe can offer. The connection provided by this will not be enough to do memory sharing but it will make better cooperation between the chips possible, things like inter-frame changes and such. This will make it easier to even make DX10 games scale better than before but it will still be rather driver reliant but to a lesser extent.
All of this is just some sort of guess of mine though, I have no extensive information on the patents in AMDs possession or knowledge on these kind of things, but I think it's more viable than shared memory in the way you portrayed it
EDIT: my drawing went to shreds after I posted it, sorry for that.....

[mascaras]

AMD Radeon HD 4850 and HD 4870 Information




Edit:

Source >> http://my.ocworkbench.com/2008/amd/A...0_HD4870-1.htm

(images are down)

regards

images are up again

[Menhir]

I have cards, some photos (now deleted) was posted earlier ... as a proof. But if i publish some results, our magazine, me and my supplier will have many problems. Nobody wants the problems, and i decided no break NDA. Thats all, and some crying babies here have to wait for official launch.

And AMD guys (reading this thread) ... pay more attention on your samples and dont call me AGAIN! I am not under NDA, and i can do anything i want ... If you will bother me again, i will post everything results i have !!!!!!

even without 4850 benchmarks

you made my day dude

[ripken204]

I have cards, some photos (now deleted) was posted earlier ... as a proof. But if i publish some results, our magazine, me and my supplier will have many problems. Nobody wants the problems, and i decided no break NDA. Thats all, and some crying babies here have to wait for official launch.

And AMD guys (reading this thread) ... pay more attention on your samples and dont call me AGAIN! I am not under NDA, and i can do anything i want ... If you will bother me again, i will post everything results i have !!!!!!

this is what i was suspecting, that someone from AMD would read this and try to sue OBR or something.

OBR-it is prefectly fair to not give the results, you are protecting yourself and whoever gave you the card. dont listen to everyone else who is screaming at you. i am just as upset as i am but that is something that you have to deal with when it comes to the computer industry.

[Milos-stancene]

this is what i was suspecting, that someone from AMD would read this and try to sue OBR or something.

OBR-it is prefectly fair to not give the results, you are protecting yourself and whoever gave you the card. dont listen to everyone else who is screaming at you. i am just as upset as i am but that is something that you have to deal with when it comes to the computer industry.

[Nedjo]

The fact that there are no bananas for insulting on other languages beyond English doesn’t make this tolerable! Mod should erase all these posts, and serve couple of warns or even bans!! Perkam what are you awaiting?

[golden_boy]

*sitting on sofa with popcorns*
Great publicy tho this forum, a lot of newcomers
I believe ORB but he was asking for it when he said that would come with the benchies.
All in all...it's nice to see ati could have here the next killer in performance/price ratio


regards

[Hornet331]

images are up again

seems they got problems with the gddr5 memory... only 1800 mhz clock (slowest bin)?

[ripken204]

The fact that there are no bananas for insulting on other languages beyond English doesn’t make this tolerable! Mod should erase all these posts, and serve couple of warns or even bans!! Perkam what are you awaiting?

just leave it alone, everyone needs to stop posting these negative comments.
i am eagerly waiting for the 4870. you guys have been waiting so long for these cards, just wait another 2 weeks and you will know all. you guys must have something better to do than posting rude comments on a forum.

[Milos-stancene]

just leave it alone, everyone needs to stop posting these negative comments.
i am eagerly waiting for the 4870. you guys have been waiting so long for these cards, just wait another 2 weeks and you will know all. you guys must have something better to do than posting rude comments on a forum.

[G0ldBr1ck]

I remember reading somthing quite a while back about the 4870x2 was going to have better comunication between chips thanks to a new generation of PLX chips that will allow full PCIexpress 2.0 vs the PCIexpress 1.0 that is used on the 3870x2 PLX chip. I wish I could remember where I read this but I cant. It did show that they clearly planed on using a PLX chip thow, just a Newer/Better one.

[Helmore]

seems they got problems with the gddr5 memory... only 1800 mhz clock (slowest bin)?

The chip may not need/have-a-use for oodles of bandwidth and 1800 MHz. would suffice. This will reduce price, increase availability, lower power consumption and decrease the amount of defective cards (yields). 1800MHz. will still give you 115 GB/s though.

[Afterburner]

All you numbnuts (you know who the Fck you all are) need to STFU and have some bloody patience and manners and respect...!!!