Radeon HD 7000 Revealed: AMD to Mix GCN with VLIW4 & VLIW5 Architectures

[The|Hunter]

It better score at least 10K in 3dmark2011 graphics total score, but according to ORB leak it will be only ~7000?

I hope hes faking it lol, that's what i get now when i OC my 570gtx to 950mhz

[tajoh111]

agreed, if tessellation games increased 60-250% then games that were not using much tessellation might be only 40-60% faster

Only 40-60% faster? That would be huge performance jump. I would be happy with that type of average. 40-60 would be the type of performance improvement we saw with the 5870 and 4890. I think with a brand new architecture and immature drivers we will be lucky to see that. But if you look at the past, these marketing slides tends to exaggerate quite a bit and are atleast 10% off(i.e from marketing slides 6970 was supposed to be 15% faster than a gtx 480 which would put it at gtx 580 speeds).

[Lanek]

It better score at least 10K in 3dmark2011 graphics total score, but according to ORB leak it will be only ~7000?

I hope hes faking it lol, that's what i get now when i OC my 570gtx to 950mhz

Dunno I have 10K ( graphic score ), with 2x 5870@1040ghz. + 2600K@5.2ghz. ( no mipmap etc )

[Lightman]

That's going with the 4 split rather than the 8 split, still matches the mathematics we've always seen. They didn't disable RBE's, they disabled half of the Rops per RBE.

I seriously can't even remember the last time we saw a gpu that wasn't symmetrical rop to memory controller. In fact, I'm now curious... When IS the last time AMD/ATi released a chip that wasn't? (serious question) AFAIK both brands ARE actually tied together in this aspect presently.

Long forgot R600 a.k.a. HD2900 had decoupled ROPs from memory channels. There were 16ROP - 512bit cards based on R600 as well as 16ROPs - 256bit cards (HD2900GT) based on the same R600 chip. This was possible due to massive 1024bit ring-bus which was dropped in later chips (starting from RV770) due to power, die area and efficiency reasons. You also could disable only one quad-ROP if needed and they were also decoupled from texture units. R600 was very nice on paper, we all know how it fared in real world

[The|Hunter]

Dunno I have 10K ( graphic score ), with 2x 5870@1040ghz. + 2600K@5.2ghz. ( no mipmap etc )

Gpu score or total score?


At first i was hopping for ~ 14K by gpu P score, lol now im at 10K.. Imo anything lower is really a let down.


Those 64 tessellator engines should do some magic.. and its just a 1280x720 reso for Christ sake lol

[AliG]

It better score at least 10K in 3dmark2011 graphics total score, but according to ORB leak it will be only ~7000?

I hope hes faking it lol, that's what i get now when i OC my 570gtx to 950mhz

I think it was Vapor who said it, but I don't think we're even allowed to talk about OBR/his site anymore.

Just trying to keep you outta trouble brotha

[Lanek]

Gpu score or total score?


At first i was hopping for ~ 14K by gpu P score, lol now im at 10K.. Imo anything lower is really a let down.




Those 64 tessellator engines should do some magic.. and its just a 1280x720 reso for Christ sake lol

graphic score only (not Pscore ).. If we speak about Pscore: GTX590 stock = 8800-9000 and 6990 score in the 9300 ....even a GTX580SLI pull just 10K score. ( stock speed ofc ). (i have take thoses number in the review of thoses cards, so drivers have maybe increase a little bit the scores then .) 14K for a single GPU is a little bit unrealistic ( i think scores dont scale really well, due to the numbers of test, their different nature, and the way they are calculate).

(for add to the example 2x 590 SLI ( quad SLI ) score 13425 and 2x 6990 ( quadcfx ) score 13734 )

[The|Hunter]

graphic score only (not Pscore ).. If we speak about Pscore: GTX590 stock = 8800-9000 and 6990 score in the 9300 ....even a GTX580SLI pull just 10K score. ( stock speed ofc ). (i have take thoses number in the review of thoses cards, so drivers have maybe increase a little bit the scores then .) 14K for a single GPU is a little bit unrealistic ( i think scores dont scale really well, due to the numbers of test, their different nature, and the way they are calculate).

(for add to the example 2x 590 SLI ( quad SLI ) score 13425 and 2x 6990 ( quadcfx ) score 13734 )

Ok tnx, i guess 10K P gpu score isn't so bad, that's if it scores 10K at all hehe

[Lanek]

I will not too much wait about score in 3Dmark suite at launch, ( first cause what i want to know it is how they OC, and what the score OC ),
but remember whatever it is Nvidia or AMD, in general in 3Dmark, we see a big boost 1-2 drivers then when this is a new architecture ( 3Dmark06 + cypress, a 2000pnts boost on the second official driver, same in vantage. and for Fermi it was the exact same thing with the GTX480. )

For thoses type of bench, new arch need allways some drivers tweaking for perform at their full potential.

Specially 3Dmark11 is a lot more complex in what it test compared to old benchmark ( who was mostly graphic based ), Physic, OpenCL, computing, + shader performance... a driver for a new architecture with new or enhanced performance in 3Dmark11 will surely need a lot of tweaking.

[The|Hunter]

Well it looks like it can do at least 1075mhz,

[Lanek]

I will not be surprised we will see factory overclocked card at 1ghz+ ... specially AMD have open the possibility for AIB to present a lot of different cards at launch for the 7950. ( hence why the launch is maybe still fixed at January for them ). It should come fast too then for the 7970.

For be honest i really dont know what can be the real performance of the card. Too much change. I will not speculate too much, and just wait the surprise ( good or bad ).

[Andi64]

Ok tnx, i guess 10K P gpu score isn't so bad, that's if it scores 10K at all hehe

Last time I checked, the HD6970 scored something like... P5500 or P6000 (correct me if I'm wrong). I think you shouldn't expect more than P7500~P8000. It has 33% more shaders, and a new architecture, why would you expect it to run almost twice as the last gen?

My guess is somewhere between ~7000 and ~7500, and it would be very nice. If it hits 8000 overclocked I could swap my HD5850 Crossfire for one HD7970. I hit something like 8800, but when performance is almost identical, 1 card >>> 2 cards.


Edit: Oh, my mistake. Sorry, I thought you were talking about overall score. I don't pay much attention to the GPU score, so I don't really know.

[phantomferrari]

it seems like we have a pretty good idea and semi official specs for the 7970. what i dont know is where people are getting their information about the high end keplers. i personally have seen nothing but wild speculation on the specs of the high end keplers and yet people are claiming its going to wipe the floor with the 7970? i would wait until we have more concrete info on kepler. just remember, it was reported that the high end 7000 series was going to get xdr2 memory and we see how that worked out

[Lanek]

Last time I checked, the HD6970 scored something like... P5500 or P6000 (correct me if I'm wrong). I think you shouldn't expect more than P7500~P8000. It has 33% more shaders, and a new architecture, why would you expect it to run almost twice as the last gen?

My guess is somewhere between ~7000 and ~7500, and it would be very nice. If it hits 8000 overclocked I could swap my HD5850 Crossfire for one HD7970. I hit something like 8800, but when performance is almost identical, 1 card >>> 2 cards.


Edit: Oh, my mistake. Sorry, I thought you were talking about overall score. I don't pay much attention to the GPU score, so I don't really know.

It's really not easy to compare the actual SP on Cayman, and the GCN architecture, it will be too long to explain it here but Anandtech have make a good and understandable preview in June http://www.anandtech.com/show/4455/a...-for-compute/3

Again, i dont know how it will perform, I just explain it is hard to compare SP numbers. It will be possible if it was a die shrink of the Cayman VLIW4 port, But hardly with this architecture.

[DilTech]

it seems like we have a pretty good idea and semi official specs for the 7970. what i dont know is where people are getting their information about the high end keplers. i personally have seen nothing but wild speculation on the specs of the high end keplers and yet people are claiming its going to wipe the floor with the 7970? i would wait until we have more concrete info on kepler. just remember, it was reported that the high end 7000 series was going to get xdr2 memory and we see how that worked out

It's mainly just because Kepler is looking to be double the 580 (slides have popped up showing around double 580 performance), which unless 7970's new design has some amazingly improved performance per shader ratio then it's heavily doubtful that it'll be capable of putting up those kind of numbers. We're expecting a 30-40% improvement on the AMD side of things, NVidia are aiming for doubling up there end it would seem. Even the GK104 (nvidia's mid-range part) should match the 7970 if the specs are true.

That's why.

All that said, AMD doesn't aim at NVidia's top-end parts in the first place with single gpu's. So 780 (if that's it's name, that's what the slide claims) will be likely up against a 7990 instead anyway.

[LordEC911]

can someone measure the length of the 7970 for us based on the image showing the side of the card and PCIe slot, thanks!

Working on it.

Edit- The sideways card, bad slide to use, I got ~11.25inches or 28.6cms for the shroud. Used 7.1cm for the pci-e slot.
ReEdit- Using the slide below, I got 27.89cms or ~11inches which I think is more accurate.

Still using a vapour chamber? I thought they were switching to those liquid chambers, or is 6th generation vapour chamber the same thing?

These slides look a bit more legit that the OBR ones, but still I wouldn't look too deep into performance numbers. Nice to see DX11.1 and PCI-e 3.0 supported though.

Liquid chambers for slim professional cards. Takes awhile for them to ramp up mass production.

[HelixPC]

NEW Launch date is Dec 22nd!


http://www.techpowerup.com/156876/AM...cember-22.html

[Lanek]

Allready posted one page before, m8 .... but no worry.

Yes, it seems confirmed by some other site too. ( VRzone ).

[radier]

http://www.obr-hardware.com/2011/12/...ance-info.html

Okay, i have NOT a cards (only few ppl have it now) but i have some performance numbers. I have real results from Live presentation in 3D Mark 11, Unigine Heaven, Battlefield 3, Dirt 3 and Crysis 2.

Have numbers from slides too (unreal PR stunts here) from slide above. I can say how HD 7970 perform, i know it from these few real tests ... stay tuned, all will be here soon.

If i am telling, performance is only few percents above HD 6970 (in Games not 3D11 and Unigine) it is NOT speculation, but info from real GAME results ...

[spicypixel]

It's really hard to enforce this no OBR rule when it's the only source of "info".

[LordEC911]

It's really hard to enforce this no OBR rule when it's the only source of "info".

Really??? There is info all over the place if you know where to look or who to listen to.
Why would you even listen to him for GPUs is beyond me since he has been giving out misinformation for the last couple of launches.

[kroks]

It's really hard to enforce this no OBR rule when it's the only source of "info".

don't forget donanimhaber

[paulbagz]

So can we stop quoting OBR then? =/

-PB

[STEvil]

yes, please. let him sink his own boat.

[DilTech]

NEW Launch date is Dec 22nd!


http://www.techpowerup.com/156876/AM...cember-22.html

SkyMTL was once again spot on when he said weeks ago that if the launch date ends up in 2011 that it will be a paper launch.

Either way, glad to know we're almost ready for the next battle of the titans.