HD5770 & HD5750 reviews

[Your_Boss]

What does this mean? Are the upper end 5800 series being held back by drivers? I am surprised nobody has looked further into the reasoning behind this.

I think so too. I think DAAMIT is just waiting for the Fermi so it can open teh can of WhoopAss! lol

If you look at what 2 5770's in crossfire can do..I think this is really what the 5870 can do if given it's full potential. Maybe more memory or bandwidth, don't know yet.

[vengance_01]

CF 5770's look very nice. If they can come down in price to the 120-130$ range, ATI has a real winner.

[To(V)bo Co(V)bo]

Actually , take a look at those crossfire scailing numbers over at guru3d. It almost scales perfectlly double. It even beats out a 5870 fairly easily. 2 of 5770 ftw

This has to prove some kind of performance issues with 5870, way more potential in that gpu no doubt.

[Pontos]

New driver for HD5800 and HD5700 series cards

http://support.amd.com/us/kbarticles...icsdriver.aspx

[Monstru]

2 x HD5870 scale in Crossfire almost the same. But obviously, they are more CPU limited then 2 x HD5770.

[LyP0]

US dollars? Kichroa? Where's that?

No thats euro's
so in dollars thats
178,38 for a 5750
245,26 for a 5770
282,42 for a 5850
416,19 for a 5870

[Lightman]

Yes, with these cards we came to the point that 2 Junipers in CF can be faster than 2 Junipers on one die (Cypress). The problem is set-up rate (triangle rate) which not doubled from 1tri/clock since very long time ago. So 850MHz Juniper has the same set-up speed as 850MHz Cypress. Take 2 Junipers in CF and you can get up to 2x850 million triangles per second.
Next gen cards should solve that bottleneck.

[largon]

Those 5770CF figures again point that there's something horribly WRONG in Cypress.

[saaya]

Those 5770CF figures again point that there's something horribly WRONG in Cypress.

EDIT: whats up with anandtechs 5770 review btw?
they seem to have the slowest 5770 results of any review ive read so far?
everybody else has a 4870 and 5770 tied and for them the 5770 was notably behind in almost all tests?
they edited their review several times cause they had several numbers wrong... sounds like they really need to check their test rig and re-run everything...

[Farinorco]

About dual HD5770 throwing higher framerates than HD5870, can't it be simply that the resources are being better used when rendering 2 different frames than when rendering only 1 frame?

I have not thought about it deeply, but we should take into consideration that these different configurations are doing different things.

Maybe as 5770 has half the operational resources than 5870, in the rendering of every single frame there are points where 5870 leaves more resources without being used because at some points both may have enough, or 770 being fully used but 870 having more than necesary. As the second 5770 doesn't add its resources to the first one (wasting them when not needed), but renders another different frame, it may end up doing a more efficient use of its resources.

I have always thought that the problem of AFR is not its potential framerate scaling, but the irregularity of that frames output, the dependency on the CPU rendering times, compatibility issues, and so...

[demonkevy666]

is there anything lower then 5750 ?

[96redformula]

is there anything lower then 5750 ?

Not until Q1 2010

[koksy]

triple cf usualy sucks in games, but the scaling on the 5770 looks pretty sweet. Do you think price/performance 2x5850 is better than 3x5770?

[billdavis]

Well technically 3 HD5770's are more powerful than one HD5870 but the unbelievable point is the near %100 scaling with each added gpu. 40-80-120.

yepp,
but 3 5870s is where it is @ but 3dm only counts to me

[billdavis]

is there anything lower then 5750 ?

yeah it is called nvidia...lolz

jk...for real, fanboys are :banana::banana::banana:gs

id like 2 5750s in cf for my htpc

[koksy]

hm, this just struck me.

3x5770 will cost about $600 USD in Denmark. These will beat a single $500 USD 5870 by far. BUT, the 5970 (or 5870X2) will probably only cost about $600 USD, and this would definitely beat 3x5770, or am I wrong?

[onethreehill]

Radeon HD 5770 in 3-way CrossfireX Review
http://www.guru3d.com/article/radeon...x-review-test/

AMD's Radeon HD 5770 and 5750 graphics cards
http://www.techreport.com/articles.x/17747

[onethreehill]

ATI Radeon HD 5770 and 5750 CrossFire Video Cards
http://www.legitreviews.com/article/1105/1/

ASUS Radeon HD 5770 Voltage Tweak: better than the rest?
http://www.hexus.net/content/item.php?item=20717

Radeon HD 5750 Review (Crossfire)
http://www.guru3d.com/article/radeon...ew-crossfirex/