ATI Radeon HD 4000 Series discussion

[Helmore]

CPU doesn't have nearly as large of an effect on vantage as it did in 06 ... especially in the extreme preset. Wow, and a 4850X2 will be even faster due to the shared memory pool. Nvidia is about to get

No-one knows what the X2 will be like and a shared memory pool has not been confirmed by anything/anyone. So it remains to be seen what 48x0 X2 will be like.

[Helmore]

ATI 770 marketing site goes live, inq article..

Here it is: http://www.radeon-graphics.net/

It confirms the 1 TeraFLOP and as the inquirer said: that "933 must sting" for NVIDIA. As the GTX280 is supposed to reach 933 GigaFLOPs.

P.S. Those guys from the inquirer are sometimes to stupid to be true, check this: "The smaller brother, aka low-yield, salvage part, the GTX260 is basically the same chips with 192 SPs and 896M GDDR3. If you are maths-impaired, let me point out that this equates to 24 ROPs."
It should be 28 ROPs for the GTX260 and they are talking about others being math-impaired .

[AliG]

the site's down already


And I pointed that out a long time ago (the maths impaired thing)

[LordEC911]

looks great

lets see how tri-sli gtx280 fares against quadfire 4870x2

Now if 4850 CFX scales nearly as well, 4x 4850 will barely miss 3way GTX280 performance, obviously in vantage, while costing about half the price of TriSLI.

[NH|Delph1]

Andreas mate, can you give any kind of confirmation of this? IMHO NH is definitely up there on my list of reputable sources, but there's just too many other sources, with (apparent) benchmarks and/or screen grabs, showing that RV770 only has 480.

I really wish I could share the remaining slides, but I've been told not to. My source is worth too much to me to share these.

Maybe I can try and shed some light on things in another way. I guess that if my word isn't good enough, W1zzard's is. He said from an early point that there would be 160 shader clusters. RV670 has 64 shader cluster. Each RV670 shader cluster is 4+1 (5D). It makes little to no sense for AMD to change the cluster design to 2+1 (3D), which would then result in only 480 shaders. There has never been any talk about 96 clusters, other than speculations.

My Asian sources has claimed 800 SPs from the very start, but they are off a bit too often for me to believe them without doubt. Especially when western sources close to AMD report 480SPs. Later I find out that AMD has planted a number of rumors, including 480SPs to create a smoke curtain, and that it wanted to surprise both buyers and especially NVIDIA by launching a card with 800SPs.

GPU-Z is not proof of anything. It's just a database with information and if the database is outdated, the information displayed by the program will be wrong. Kudos to W1zzard for creating it though, it's a great tool. It's just not 100% reliable for cards that haven't been launched.

I've posted slides, Asian websites have posted different slides from AMD presentations that all show 800SPs, the only contradictory stories I see are the ones using GPU-Z as a source of information, which is just misleading.

EDIT:
Can anyone show me a slide with any information about the number of shaders beside the one I and the Asian sites have posted that say 800SPs?

//Andreas

[fng77]

now i am so glad i have an x38 board my 2 4870s are gonna rock

Me too, x38 Rules

[Helmore]

I really wish I could share the remaining slides, but I've been told not to. My source is worth too much to me to share these.

Maybe I can try and shed some light on things in another way. I guess that if my word isn't good enough, W1zzard's is. He said from an early point that there would be 160 shader clusters. RV670 has 64 shader cluster. Each RV670 shader cluster is 4+1 (5D). It makes little to no sense for AMD to change the cluster design to 2+1 (3D), which would then result in only 480 shaders. There has never been any talk about 96 clusters, other than speculations.

My Asian sources has claimed 800 SPs from the very start, but they are off a bit too often for me to believe them without doubt. Especially when western sources close to AMD report 480SPs. Later I find out that AMD has planted a number of rumors, including 480SPs to create a smoke curtain, and that it wanted to surprise both buyers and especially NVIDIA by launching a card with 800SPs.

GPU-Z is not proof of anything. It's just a database with information and if the database is outdated, the information displayed by the program will be wrong. Kudos to W1zzard for creating it though, it's a great tool. It's just not 100% reliable for cards that haven't been launched.

I've posted slides, Asian websites have posted different slides from AMD presentations that all show 800SPs, the only contradictory stories I see are the ones using GPU-Z as a source of information, which is just misleading.

EDIT:
Can anyone show me a slide with any information about the number of shaders beside the one I and the Asian sites have posted that say 800SPs?

//Andreas

Now all there is to know is the amount of TFUs/TMUs/TAUs....will it have 32 or 40 TMUs......

[AliG]

@andreas
fcry64 posted this but no one commented, I guess people didn't like what they say

this shows it having 480 stream, but it could just be a mistake and there's no guarantee that's legit since there's no picture yet to confirm it (at least with the 2900xt I'm pretty sure they flaunted their "320" shaders)
http://www.amazon.com/Diamond-4850PE...253657&sr=1-59

[003]

Me too, x38 Rules

Yup, I got X48 for the same reason! Previously had P35 which would suck for crossfire.

P45 is great for CPU overclocking, but only dual X8 lanes for crossfire ... not good for dual 4870X2s.

There is of course X58, which would require a new CPU as well, and is not out yet, and also likely require new RAM.

[Eastcoasthandle]

@andreas
fcry64 posted this but no one commented, I guess people didn't like what they say

this shows it having 480 stream, but it could just be a mistake and there's no guarantee that's legit since there's no picture yet to confirm it (at least with the 2900xt I'm pretty sure they flaunted their "320" shaders)
http://www.amazon.com/Diamond-4850PE...253657&sr=1-59

What's a RV7000 Series GPU??

[003]

R700= 4870X2
RV770XT= 4870
RV770Pro= 4850

Come to think of it, I'm not sure what they will call the 4850X2...

[fcry64]

@andreas
fcry64 posted this but no one commented, I guess people didn't like what they say

this shows it having 480 stream, but it could just be a mistake and there's no guarantee that's legit since there's no picture yet to confirm it (at least with the 2900xt I'm pretty sure they flaunted their "320" shaders)
http://www.amazon.com/Diamond-4850PE...253657&sr=1-59

thanks for posting it again m8

What's a RV7000 Series GPU??

and thanks for pointing that out (this does mean the specs can be wrong there)

and now ...LETS hOPE for 800sp

[fng77]

Yup, I got X48 for the same reason! Previously had P35 which would suck for crossfire.

P45 is great for CPU overclocking, but only dual X8 lanes for crossfire ... not good for dual 4870X2s.

There is of course X58, which would require a new CPU as well, and is not out yet, and also likely require new RAM.

I think the three of us gonna have a pretty fun time in front of us, crossfireing these babys


And of course, The price is now rapidly starting to drop at the 3800 series, like that too. Always wanted to run Triple crossfire.

[informal]

thanks for posting it again m8



and thanks for pointing that out (this does mean the specs can be wrong there)

and now ...LETS hOPE for 800sp

I would trust Andreas over amazon or any online shop any time of the day .

[ceevee]

hmmm...

since I have x48 now maybe its time to go back to AMD and get dual 4870x2 instead of one 280gtx.

can anyone comment on how crossfire has evolved? My last crossfire rig was two x1900xt. There were problems with that setup that sometimes created glitches in certain games or no increase in performance.

Is crossfire working better now? Will it work in all games or only for benching?

Is it buggy? Do you still need one of those external dongle things to attch the cards together?

[mascaras]

http://publish.it168.com/2008/0611/20080611033801.shtml

new benches

if those benchs are real then HD4870 Vs HD4850 :








..

[003]

X1900... isn't that when you needed a "master" CF card? No, you don't need that anymore, nor do you need an external dongle. The cards are connected by a ribbon cable on top of them, like SLI is. CF performance scaling has greatly increased, as has game support.

[zerazax]

I don't know how that site benched the cards when it can't even get the default clocks for the 4850 correct

[fcry64]

I would trust Andreas over amazon or any online shop any time of the day .

its 2% for the 800sp part

[SNiiPE_DoGG]

I think the three of us gonna have a pretty fun time in front of us, crossfireing these babys


And of course, The price is now rapidly starting to drop at the 3800 series, like that too. Always wanted to run Triple crossfire.

my current 3870 will be occupying the 3rd pci-e on my board, thats for sure

[GAR]

Im hoping for these cards to do well, i just got myself a P45 and wouldnt mind doing crossfire for once, since most games run fine on my 9800GTX and if the 4870 beats it, then i should have no problem running all games at good frame rates.

[Helmore]

my current 3870 will be occupying the 3rd pci-e on my board, thats for sure

For what reason? Need a better heating element (radiator) in your room? Better multi-monitor support? I have a feeling they won't be working along with any of these 48x0s in CFX....the performance difference between the 38x0 and 48x0 is just to big to do that.

[G0ldBr1ck]

hmmm...

since I have x48 now maybe its time to go back to AMD and get dual 4870x2 instead of one 280gtx.

can anyone comment on how crossfire has evolved? My last crossfire rig was two x1900xt. There were problems with that setup that sometimes created glitches in certain games or no increase in performance.

Is crossfire working better now? Will it work in all games or only for benching?

Is it buggy? Do you still need one of those external dongle things to attch the cards together?

I have 2 3way crossfire systems on 790fx chipset (hd3870's) and it does scale allot better then my old x1950xtx crossfire. No externel crap just the ribbon across cards. In 3Dmark06 I get around 14k with 2x 3870's and phenom and with the 3rd 3870 jumped to 16k.

[Metroid]

I was waiting for this picture to make the initial post to look great.



http://www.unleashonetera.com/

Enjoy,

Metroid.

[zerazax]

Looks like PowerColor jumped the gun and sold the 4850 in Hong Kong:

http://my.ocworkbench.com/bbs/showthread.php?p=432522

15194 w/ QX9650 at 4GHz in 3dMark06 default

Not bad methinks