RV770: Too good to be true?

[lopri]

According to NordicHardware:

While the old Radeon HD 4000 series specifications have started to recirculate, we're hearing that the RV770 has reached the production stage. The high-end RV770 is still slated for Q2 and should slide in and move the RV670 down a peg or two. Prices are going to be more or less the exact same as today, which means highly competitive. We're eager to find out if the yields we're hearing about are true, because they are almost too good to be true.

The old HD 4000 specifications are a bit off, but not completely. RV770 builds on the R600 framework and it seems that RV770 will have 480 unified shaders. RV670 has clusters of 16 shading units, and each units have five sub-units that do the actual work. Although, it's more of a 4+1 design, where the fifth can do more things that first four. This will remain, but there will be more 10 more clusters (160 shaders) and twice as many TMUs, up to 32 units.

This also means that we're likely to see the same antialiasing performance as with RV670. The frequency will not be as high as we've reported in the past, but up to 900MHz. Overclocked versions should be plenty.

The question is what will replace R700, because when NVIDIA launches GT200, AMD will need something completely new to counter with. We're digging...

RV770 is in production, 480 SPs and 32 TMUs indeed

This sounds too good to be true if we take into account what AMD has (not) achieved for the past year, so I think we'll need some more *credible rumours*. But assuming this thing actually materializes, where would its performance stand compared to today's offering?

 

[AzN]

It will be faster than 8800gts but how much?

16/32 is same as 9600gt but with faster ram and more shader. What about DDR5 latencies?

I don't think it will be that much faster unless AMD improved the core.

 

[Cookie Monster]

Its something more of a rehash of the RV670 then a new GPU core. There maybe other architectural tweaks, but this is the RV670 with more added units. Unlike the GT200 or whatever its called, where its truly the next gen from nVIDIA unlike what we see form the 9 series. Obviously this design saves alot of money on R&D and most notably ISNT the original R700 that was planned but rather being pushed back for another time.

Since a 8800Ultra is around 30~50% faster than the HD3870 overall, id guess this GPU could potential close that gap and maybe even faster. Also the R700 is probably going to be RV770 X2 but i keep hearing that ATi has managed to find out how to share the memory pool, instead of being limited to x Mb per GPU.

 

[AzN]

What do you think about the upcoming GT200 cookie? I haven't heard anything.

 

[AzN]

Originally posted by: Cookie Monster
Its something more of a rehash of the RV670 then a new GPU core. There maybe other architectural tweaks, but this is the RV670 with more added units. Unlike the GT200 or whatever its called, where its truly the next gen from nVIDIA unlike what we see form the 9 series. Obviously this design saves alot of money on R&D and most notably ISNT the original R700 that was planned but rather being pushed back for another time.

Since a 8800Ultra is around 30~50% faster than the HD3870 overall, id guess this GPU could potential close that gap and maybe even faster. Also the R700 is probably going to be RV770 X2 but i keep hearing that ATi has managed to find out how to share the memory pool, instead of being limited to x Mb per GPU.

Same as G80 to G92. AMD is a whole generation behind now ever since 2900xt mess up. Why didn't AMD release this earlier and called it 3870?

 

[biostud]

and in the old thread........

RV670:
320 SP @ 775Mhz
16 TMU
16 ROP

RV770:
480 SP @ 850Mhz (+10% clock) (combined with the 50% more SP it gives a theoretical processing power of +65%)
32 TMU (+110%)
16 ROP (+10%)

 

[BFG10K]

What do you think about the upcoming GT200 cookie?

It'd better be bloody good I say. As in at least twice as fast as my 8800 Ultra, given nVidia are taking their sweet releasing it.

 

[TecHNooB]

Yes, ATI going back to the top! (I hope)

 

[Zstream]

Originally posted by: TecHNooB
Yes, ATI going back to the top! (I hope)

just add 30% to all benches and that is the worst this thing will do. Some benches will be 100%+ but time will tell.

 

[cm123]

Originally posted by: Zstream

Originally posted by: TecHNooB
Yes, ATI going back to the top! (I hope)

just add 30% to all benches aclick HEREnd that is the worst this thing will do. Some benches will be 100%+ but time will tell.

it does look like a winner coming thats for sure - 2 things though, first AMD has to get the product shipping (these cool samples need to turn into shipping products and not end up bit like the HD 2900 XTX) - other thing is need to get it fast and on time, Nvdia seems to be milking old cores right not more than releasing new technology, not saying they could not pop a new core/card out pretty fast to fight back.

good part really is, as long as AMD stays in the game and with good products and good product set for release, keeps Nvidia in line and prices little bit in check for all of us.


I hope we get back to bit more focus on having the power in one card, no SLi or Cross-fire needed...

Here is bit more info on the HD 4800 (guessing) on it here

and even more
[...up.com/index.php?52095]http://www.techpowerup.com/index.php?52095[/L]

and another [L=right here]http://www.xbitlabs.com/news/video/display/20080121140756_AMD_Reportedly_On_Track_with_Next_Generation_Graphics_Chips.html">

 

[Munky]

These look like reasonable specs. Doubling the texture units would help performance considerably, since Ati has been lacking in this area lately.

 

[Peelback79]

Add 30% to all benchies had better be the Least it does. Otherwise there'd be no point in upgrading past what you have now.

"The Taiwanese gossip diggers over at DigiTimes report that AMD has recently told its partners that it expects its share in the graphics card market to jump from 35 per cent to 50 per cent. "

"We don?t believe a word of either of the above at the moment, apart from perhaps the name, but we?re liking the idea of a new ATI architecture being released in a few months."

I don't trust anything AMD "expects" to happen anymore. They "expected" Phenom to do (insert gross overstatement here). For me seeing is believing and I'm hoping I'll be seeing an ultra slayer for a reasonable price. But when it comes to getting excited over few paragraphs I'll pass. We'll see in a few months.....come on ATi.....you can do it.

 

[kenji4life]

Originally posted by: Peelback79
I hope we get back to bit more focus on having the power in one card, no SLi or Cross-fire needed...

While both companies will continue to focus on single card/GPU performance, I doubt AMD will stray from Crossfire. With Hybrid Crossfire X, it looks as if AMD is headed for this full speed and I can't see it stopping. If the destination is anything like I imagine, we'll be looking at a relationship between the GPU(s)/CPU/Memory like never before.

Your powers combined, I am CAPTAIN PLANET!!

 

[v8envy]

Correct me if I'm wrong, but isn't the place where current HD38XX fall flat on their faces FSAA at high res? That's completely ROP limited, and we're only getting 10% in that department...

I could see a worst case scenario of only 10% speed increase where it counts -- 4x FSAA or better at 1900x1200. Lesser cards are already sufficient at lower res. Sure, this card will be much faster than the 9600GT in 2010 games assuming the current trend of dogpiling on shaders -- but by that point it'll be outperformed by value cards.

If I'm right and the performance boost is modest we won't be seeing the R200 until late third or early fourth quarter. And that would make all of us sad pandas.

 

[Munky]

I don't believe FSAA is a problem for Ati cards. The fragment programs doing AA resolve are nowhere as complex as the ones used in modern games, and the cards have plenty of brute ALU power. The ROP's aren't a limiting factor either, Nvidia's 16-ROP g92 has no problems keeping up with the 24-ROP g80 gtx, and blows away the 20-ROP g80 gts. The weakness of Ati's latest cards are the relatively small number of texturing units, and that's where the g80 and g92 have a big advantage over the rv670.

 

[Wreckage]

Originally posted by: BFG10K

What do you think about the upcoming GT200 cookie?

It'd better be bloody good I say. As in at least twice as fast as my 8800 Ultra, given nVidia are taking their sweet releasing it.

With no real competition right now, I don't see the hurry.

 

[Peelback79]

Originally posted by: Wreckage

Originally posted by: BFG10K

What do you think about the upcoming GT200 cookie?

It'd better be bloody good I say. As in at least twice as fast as my 8800 Ultra, given nVidia are taking their sweet releasing it.

With no real competition right now, I don't see the hurry.

In one way, a lack of competition isn't a bad thing. It allows the leading company to pollish and refine their product and come to market weilding a truly righteous gpu. On the flip side, it allows said leading company to drag it's feet and marginally increase the standard while reaping the benefits of being No.1. I don't feel it's wrong, it's annoying but it's what happens when any company wins too easily inside of an already undercrowded market. And no, I don't think any government agency should launch an investigation into "GPU price gouging".

Give me a single slot solution or give me death.......... or I'm joining a monestary........or buying an Xbox.....

 

[Munky]

Originally posted by: Wreckage

Originally posted by: BFG10K

What do you think about the upcoming GT200 cookie?

It'd better be bloody good I say. As in at least twice as fast as my 8800 Ultra, given nVidia are taking their sweet releasing it.

With no real competition right now, I don't see the hurry.

With no real competition, Nvidia could release a next gen high end card and sell it for $800 a piece to all the people itching to upgrade their 8800gtx's. But they can't, because if it was ready, they would have done it by now. Waiting for the competition to catch up is a pretty stupid idea, IMO.

 

[bryanW1995]

wow, you can say whatever you want about "we need 200% of 8800ultra or i'm pissed" or even "give me a single slot solution or give me death", but that xbox comment was just over the top. you need to go splash some cold water on yourself before you offend somebody.

 

[taltamir]

isn't the R770 a dual-core chip GPU? with two cores on one die?
So all those figures can be cut in half and then considered as Xfire. Because it WILL STILL need to xfire. IT will just be a much much more efficient xfire since it will have a direct link between the two (that is, probably shared ram and shared bandwidth and so on...)

 

[kenji4life]

What evidence have you seen that the R770 will only be launched in a Dual core configuration? I've read that a 4xxx X2 is anticipated, but nothing saying that it'd be the only choice.

 

[covert24]

Originally posted by: kenji4life
What evidence have you seen that the R770 will only be launched in a Dual core configuration? I've read that a 4xxx X2 is anticipated, but nothing saying that it'd be the only choice.

it would be a very bad move if it was the only choice

 

[lyssword]

Originally posted by: taltamir
isn't the R770 a dual-core chip GPU? with two cores on one die?
So all those figures can be cut in half and then considered as Xfire. Because it WILL STILL need to xfire. IT will just be a much much more efficient xfire since it will have a direct link between the two (that is, probably shared ram and shared bandwidth and so on...)

no, 480 shaders is supposedly for each chip, x2 version I've seen as having 960 shaders total.

 

[thilanliyan]

Originally posted by: taltamir
isn't the R770 a dual-core chip GPU? with two cores on one die?

R780 should be the dual GPU card, as R680 was to R670.

 

[SickBeast]

Originally posted by: bryanW1995
wow, you can say whatever you want about "we need 200% of 8800ultra or i'm pissed" or even "give me a single slot solution or give me death", but that xbox comment was just over the top. you need to go splash some cold water on yourself before you offend somebody.

Aside from Crysis, (which no computer can run outside of NASA) there is nothing on the PC that looks nicer than something that the Xbox 360 cannot produce. I find it frustrating personally. I paid about as much for my 8800GTS 320mb as I would have paid for an Xbox and really I somewhat regret not going the console route.