AMD Radeon HD 6790

[Dark-Energy]

My guess is the 150W means max board power. To speculate, typical consumption would be less than that of a 550 Ti if they are the same speed.

[spursindonesia]

A disabled (yet not power gated) chip with high clock to compensate the low execution unit number, coming from the thrash bin, we should expect it to have a high TDP just to make sure the yield would be high, accomodating even the worst characteristically chips out there.

[Mechromancer]

The 6790 specs mirror my old 4870's specs quite closely. As my car still has the chops to play these modern games in DX10.1 mode, the 6790 looks like a decent GPU for a cheap gaming build. TDP may be an issue but if the price is right this GPU could get the job done quite well.

[-Boris-]

The 6790 specs mirror my old 4870's specs quite closely. As my car still has the chops to play these modern games in DX10.1 mode, the 6790 looks like a decent GPU for a cheap gaming build. TDP may be an issue but if the price is right this GPU could get the job done quite well.

To bad it's almost three years since this kind of performance came with radeon 4800 series. And that you probably could get this performance at that price if you bought these cards when they were phased out in favour for Radeon 5800 series. :/

[Pantsu]

Yeah, prices haven't really gone down all that much in the past years. You could get a 4890/275 for ~150€ back before 5800 release. Nowadays you'll pay the same amount for a 460 that's only barely faster. Of course they consume less power and have DX11, but still.

RV770 truly was a great generation, unlike Evergreen or SI. Evergreen more than doubled everything and gave only +60% performance. Cayman mostly improved tessellation and AA performance so it was a bit of a lackluster, and in a way resembles R600 in that it's big and not all that efficient yet. Barts on the other hand is quite optimal. Hopefully the next generation is as good as rv770 was.

[generics_user]

Yeah, prices haven't really gone down all that much in the past years. You could get a 4890/275 for ~150€ back before 5800 release. Nowadays you'll pay the same amount for a 460 that's only barely faster. Of course they consume less power and have DX11, but still.

RV770 truly was a great generation, unlike Evergreen or SI. Evergreen more than doubled everything and gave only +60% performance. Cayman mostly improved tessellation and AA performance so it was a bit of a lackluster, and in a way resembles R600 in that it's big and not all that efficient yet. Barts on the other hand is quite optimal. Hopefully the next generation is as good as rv770 was.

evergreen series were the biggest leap in power/performance in a long long time

they were 60% faster and consumed less power than RV770; cypress is still the leader in terms of power/performance

Cayman is very efficient, especially 6950 which is on par with the already excellent 5850 (power/performance); comparing it to R600 is completely wrong because R600 sucked in terms of power; performance and pricing - cayman is good in all three of them

[Pantsu]

evergreen series were the biggest leap in power/performance in a long long time

they were 60% faster and consumed less power than RV770; cypress is still the leader in terms of power/performance

Cayman is very efficient, especially 6950 which is on par with the already excellent 5850 (power/performance); comparing it to R600 is completely wrong because R600 sucked in terms of power; performance and pricing - cayman is good in all three of them

Evergreen more than doubled transistor count and gave 60% more performance compared to rv770. rv770 on the other hand increased transistor count by ~43% and increased performance by ~56%. The only reason Evergreen succeeded was because of the TSMC 40 nm node and Nvidia's troubles with it. 5800 series had too much shaders, and this was fixed in Barts, increasing perf/mm^2 by ~30% (IIRC).

Cayman might not be as bad as R600 compared to the contemporary competition, but it's still a new architecture and a big chip at least in AMD's books, like the R600. It didn't really bring any efficiency gains beyond the AA and tessellation improvements which don't necessaraly show up easily. The extra shaders 6970 has compared to 6950 are mostly useless (reason why AMD left 6950's unlockable), as was the case with 5870 compared to 5850. Clock to clock the performance was almost identical. Personally I think the 6950 would have been closer to the sweet spot, but obviously AMD needed a faster chip than that, even if it is much less efficient.

If all goes well, with 28 nm they can again design a chip that's as good as the rv770 was.

[DarthShader]

Updated: TDP around 115W?

http://www.nordichardware.com/news/7...lower-tdp.html

This card almost starts to look too good to be true...

[FlanK3r]

first review?http://pctuning.tyden.cz/hardware/gr...550-ti?start=1

[cold2010]

Price / performance ratio

AMD Radeon HD 6970 to 3100 Kč with DPH (149 USD x 17.5 x 20% DPH)




Total Power

[DarthShader]

8xAA perf and the presentation slides tell the story - only 16 ROPs... waiting for price drops of both this and GTX550.

[Macadamia]

8xAA perf and the presentation slides tell the story - only 16 ROPs... waiting for price drops of both this and GTX550.

Looks like the Ropchop is back in full force... sad.
Funny how it seems to make a statement though: You'd have to severely neuter a 230mm^2 ATI chip to put it under the same segment as a full-spec 230mm^2 nVidia chip, and it still manages to eke out most wins.

Even sadder?


And for gamers, ffs just go all the way and get a 6850. So cheap nowadays it's barely legal.

[Pantsu]

Guess what happens when you delay launch date by a few days? There's always some people who won't get the memo.

It's going to be a similar fail as the 5830. Draws too much power and is priced too high, so there's no point in buying one. At those reference clock speeds it won't even overclock very well. If they price it at current 5770 level it might stand a chance.

I rest my case.

[eXa]

And for gamers, ffs just go all the way and get a 6850. So cheap nowadays it's barely legal.

In Norway atleast, i would kinda argue getting 6870 even. Cheapest 6850 is 1175,- NOK and the cheapest 6870 is 1422,- NOK
Tho i dont know the price for the 6790 yet.

(5770 is 824,- NOK)

[dacosta89]

The power consumption is very strange... I guess that this VGA will be slower (or equal) than the HD6850, however, it has 150W TDP, the same of HD6870...

hhhhmmmm........

EDIT: Didn't see the review in this page... AMD failed again?

[cold2010]

HD 6790 = HD 6870 unlocked

PCB

HD 6790


http://img826.imageshack.us/img826/7848/16087102.jpg


HD 6870


http://www.techpowerup.com/reviews/H...ages/front.jpg


HD 6790


http://img197.imageshack.us/img197/9027/12772211.jpg


HD 6870

http://www.techpowerup.com/reviews/H...mages/back.jpg

[Gaul]

its only 1 x 6 pin

[onethreehill]

first review?http://pctuning.tyden.cz/hardware/gr...550-ti?start=1

If you missed the review

Backup: http://img69.imageshack.us/g/wic19204aa.png/

http://forum.beyond3d.com/showpost.p...postcount=7328

[SKYMTL]

The power consumption is very strange... I guess that this VGA will be slower (or equal) than the HD6850, however, it has 150W TDP, the same of HD6870...

TDP does not equal power consumption.

[onethreehill]

MSI HD 6790
http://vr-zone.com/articles/exclusiv...790/11786.html

[andos]

XFX 6790




Source: http://detail.zol.com.cn/279/278624/pic.shtml

[dacosta89]

TDP does not equal power consumption.

Yes, I know. But... who knows...

[BababooeyHTJ]

This really needs to be considerably cheaper than 6850.

[XRL8]

Its meant to go against GTX 550 which is priced at 149$ ,so dont get your hopes up ;-)

[BababooeyHTJ]

Its meant to go against GTX 550 which is priced at 149$ ,so dont get your hopes up ;-)

That needs to be considerably cheaper than a 6850 too.


But it isn't.