AMD HD7*** series info

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blackened23

Diamond Member
Jul 26, 2011
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What are the chances GTX680 is only 45% faster than a GTX580? AMD needs more than 75% speed increase unless they plan to compete on price again. Or it will be again a situation where GTX670 competes with HD7970 at $350 and GTX680 takes $500 price point.

Either way, it appears that AMD will beat NVDA to the punch this time, which wasn't the case last time around. ATI was undisputedly the single gpu king when 5870 was released, and that may happen again...AMD is also going to power both upcoming next gen consoles.

Unless there are massive delays at AMD I expect them to have the single card GPU king when Tahiti-XT is released - nvidia won't have an answer for some months afterwards.
 
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RussianSensation

Elite Member
Sep 5, 2003
19,458
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Either way, it appears that AMD will beat NVDA to the punch this time, which wasn't the case last time around. ATI was undisputedly the single gpu king when 5870 was released, and that may happen again...AMD is also going to power both upcoming next gen consoles.

Unless there are massive delays at AMD I expect them to have the single card GPU king when Tahiti-XT is released - nvidia won't have an answer for some months afterwards.

Ya, probably. But being ahead by 3-4 months is no longer a big deal it used to be in the past since a generation now lasts 18-24 months, not 12-15 months. Both already missed back-to-school season. Now it's a question if AMD can launch in good volume before Xmas.
 

OVerLoRDI

Diamond Member
Jan 22, 2006
5,490
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and suddenly the train crashes.....:(

Quote

"Radeon HD 7000 will like the current 6000 family launch in steps and with different base architectures. If we are to believe the latest information that is said to come from AMD's leaked roadmap the graphics card marker is aiming for a first launch in Q4 2011. Then it will be the latest VLIW4 architecture (Very Long Instruction Word) that is on the menu and it will most likely have the same base as the Radeon HD 6900 series"

"We have no concrete information on when Radeon HD 7900 series will launch, but most likely Q1 2012. AMD has chosen to use a more performance oriented node, TSMC's 28nm HP (High Performance) that will be ready later than HPL, but also have switched from GDDR5 to the pretty untested XDR2 technology."

"Either way it sounds likely that AMD will start its 28nm launch of Southern Islands with VLIW4 and later introduce Graphics Core Next."

End quote

http://www.nordichardware.com/news/...-new-architecture-and-xdr2-rambus-memory.html
Looks like mid range/ low end first guys. :(
Seems alot of us guessed right.

Even so, more than 6970 performance with 120 watts of power usage? that is just epic.
 

Rhezuss

Diamond Member
Jan 31, 2006
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Even thought most of us expected a full SI release this fall, I'm still curious to see the numbers for the HD 7850/7870 and how they'll compare to the current gen.
 

blackened23

Diamond Member
Jul 26, 2011
8,548
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If history repeats itself for the 4 time.

1.Nvidia will have the fastest card and the most expensive.
2. AMD cards will be at least 15% slower in every tier , but less expensive.
3. Nvidia cards will use about 30 more watts per performance tier vs AMD.

bla, bla, bla, ect, ect, ect,

we all know the rest..............:)

4 times? Pretty sure 5870 was the fastest GPU and nvidia didn't have an answer. for a long while. If I remember right this was also the case for 1950XT. Looks like it'll happen again since amd is way ahead of nvidia in releasing a next gen part. Nvidia is too busy trying to make tablet PC's and apparently GPU's aren't on their radar until well into next year....
 
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WMD

Senior member
Apr 13, 2011
476
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4 times? Pretty sure 5970 was the fastest GPU and nvidia didn't have an answer. for a long while. If I remember right this was also the case for 1950XT. Looks like it'll happen again since amd is way ahead of nvidia in releasing a next gen part. Nvidia is too busy trying to make tablet PC's and apparently GPU's aren't on their radar until well into next year....

Dual gpu cards cannot be compared to single gpu cards.
 

StinkyPinky

Diamond Member
Jul 6, 2002
6,973
1,276
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Even thought most of us expected a full SI release this fall, I'm still curious to see the numbers for the HD 7850/7870 and how they'll compare to the current gen.

Yeah I'm wondering how a 7870 compares to a 5850.
 
Feb 19, 2009
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There's no evidence or even rumors to suggest the leak info is correct btw, we are all purely speculating on what ifs.
 

Blitzvogel

Platinum Member
Oct 17, 2010
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I really hope the XDR2 rumor on the upper end GPU products is true. GPUs are pretty badly bound by bandwidth still, and it will be nice to see Rambus with a good successful product outside of a game console.
 

3DVagabond

Lifer
Aug 10, 2009
11,951
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Problem is that Russian says that 79xx series will be (or must be) 75% faster that 69xx series and not against 58xx.

My argument is that 79xx will not be more than 50% faster than 69xx when it will be released, except perhaps, as i have said before in DX-11 tessellation.

I don't think it'll be 75% faster than a 6900 card. I think they are going to shoot for lower power. Cayman kinda overshot the mark on power usage. Not by a lot, but enough that they couldn't release a fully functioning Cayman FirePro. They had to go with basically a 6950 as their flagship FirePro card.

I think their performance target wont be based on their previous generation at all but at NV's current offerings. 2 possibilities are likely for their high end single GPU:

a) Barely outperforming a GTX580 by 5-10% and priced just under it. Much lower power.

b) Outperforming a GTX 580 by ~30% and similarly priced.

This has always been AMD's practice in the past. 100% increase in performance at dirt cheap price (4870) doesn't happen unless they are far behind their competition.

I think +20%-25% of GTX-580 @ ~$400, best case. I'll be surprised if it's more on either metric.

I would expect a GTX 680 to perform like a GTX 590.

I think we'll be limited by targeted power usage. The pro market doesn't want anything >225W. nVidia should try and get their flagship GPU usable in the professional market. I'll be shocked if AMD doesn't and GCN is supposed to be much improved computationally.

I, of course, could be completely wrong and neither company will give a rat's behind about power usage again. Really, all it takes is one company to go all in and the other doesn't really have a choice. They have to follow to compete.
 

zebrax2

Senior member
Nov 18, 2007
977
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I think we'll be limited by targeted power usage. The pro market doesn't want anything >225W. nVidia should try and get their flagship GPU usable in the professional market. I'll be shocked if AMD doesn't and GCN is supposed to be much improved computationally.

This got my attention. Any reason why?
 

bryanW1995

Lifer
May 22, 2007
11,144
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Either way, it appears that AMD will beat NVDA to the punch this time, which wasn't the case last time around. ATI was undisputedly the single gpu king when 5870 was released, and that may happen again...AMD is also going to power both upcoming next gen consoles.

Unless there are massive delays at AMD I expect them to have the single card GPU king when Tahiti-XT is released - nvidia won't have an answer for some months afterwards.

Huh? Last time they changed arch/node AMD beat NV by about 7 months. NV got the refresh out a month or so sooner, but that was more do to AMD's ineptitude with picking suppliers than it was to NV's 1337 skillz vis-a-vis refreshing fermi. This has much more in common with 09 than 10 for both camps. NV's arch is generally just tougher to roll out on a new node b/c it's so much larger. However, JHH is a sharp dude and he'll be better-prepared this time to close the time gap. It'll be interesting to see how this round plays out.
 

cusideabelincoln

Diamond Member
Aug 3, 2008
3,275
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Yeah I'm wondering how a 7870 compares to a 5850.

Spec comparison: https://docs.google.com/spreadsheet...LTJKX0h5RGVCdXc&single=true&gid=0&output=html
Performance: http://www.techpowerup.com/reviews/Powercolor/HD_6850_SCS3_Passive/27.html

Assuming the specs are accurate, we can pretty much compare the 7870 to the 5850 using the current 6970 as a bridge. The 7870 should be approximately 5-10% faster than the 6970. The 6970 is currently approximately 40% than the 5850. So it should end up about 50% faster than the 5850.
 
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blackened23

Diamond Member
Jul 26, 2011
8,548
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Spec comparison: https://docs.google.com/spreadsheet...LTJKX0h5RGVCdXc&single=true&gid=0&output=html
Performance: http://www.techpowerup.com/reviews/Powercolor/HD_6850_SCS3_Passive/27.html

Assuming the specs are accurate, we can pretty much compare the 7870 to the 5850 using the current 6970 as a bridge. The 7870 should be approximately 5-10% faster than the 6970. The 6970 is currently approximately 40% than the 5850. So it should end up about 50% faster than the 5850.

Is this a joke? Pulling thin numbers out of air off a graph with NO BASIS on real benchmarks. Nice. Lets all get a grip and wait for real benchmarks.
 
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Aikouka

Lifer
Nov 27, 2001
30,383
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Hmm, a Q1 2012 release for the 7900 parts doesn't sound too bad to me. Intel's Ivory Bridge should be out around the same time (I think it's Q1), and if IB is any good compared to what is speculated, it might be time to build a new PC with an IB + 7970. :D Of course, there's also an option for an AMD processor in my next build (depending on performance), but we won't get into processor debates in this sub-forum. :p
 

cusideabelincoln

Diamond Member
Aug 3, 2008
3,275
46
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Is this a joke? Pulling thin numbers out of air off a graph with NO BASIS on real benchmarks. Nice. Lets all get a grip and wait for real benchmarks.

Maybe you are joking? Thin air is the best information available. Did you miss the hypothetical qualifier? I don't see how that could have offended you in any way at all.

That chart lists the rumored specs as reported earlier in this thread next to the current specs of current cards. IF the rumored specs are true, the HD 7870 is just an overclocked HD 6970. Same architecture. Same number of computational units. Higher clockspeeds. We currently know the exact performance of the HD 6970 and the exact performance of the HD 5850. Thus we can estimate the performance of the 7870 relative to the 5850. Maybe AMD will make more changes (referring to graphics performance), but I doubt it. Changes to UVD? More likely. It makes sense for them to just shrink what they currently have. Nvidia did it with the GTS 250. And it works because the cards are running the same API (DX11) with basically the same features.

We do not, however, know what the 7970 will be exactly like, since it's using GCN. And if the 7800 cards end up using GCN, then we don't know what they will be like either. But then again, that's why the if is for.

And really, 50% better performance of a 5850 at a lower TDP is a pretty big deal.
 
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Concillian

Diamond Member
May 26, 2004
3,751
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And really, 50% better performance of a 5850 at a lower TDP is a pretty big deal.

Depends on price, but this is pretty much what I've been waiting for. The people who need >580GTX speed are also looking at astronimcally expensive displat setups, huge power bills, etc... These people are dumping loads of cash into their computers.

People in the 1920x1200 or 1080p resolutions don't need faster than current cards for very high quality, they just need cheaper and lower power... at least until software starts catching up.

I never really expected my 5770 to be usable for as long as it has been. At the rate things have slowed to, a 5850 was a pretty good midrange buy for a good 2 years, and if purchassed at launch, before AMD pumped up the price, it's really not far from being price competitive with current offerings at similar performance.

It's possible a 7850 will have me happy for 3 years?!? That's just wack given how fast I was swapping cards in and out in the 9700 pro --> 7900gt timeframe.
 

RobertR1

Golden Member
Oct 22, 2004
1,113
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Nope, not that I know of. I tried to find something like that last year and there was nothing.

That sucks. I was hoping to get a new card by BF3 and then use the step up when the next gen launches. Both AMD and nvidia suck horribly at release timing.