ATI Radeon HD 4000 Series discussion

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Once larger textures need to be accessed, as is the case in Crysis http://en.wikipedia.org/wiki/Crysis or Microsoft’s Flight Simulator http://en.wikipedia.org/wiki/Flight_simulator X, interface bandwidth becomes a crucial element. Any link width below x16 will noticeably limit these games’ playability. [:eek::)]

The answer, thus, has to be "yes": you want maximum bandwidth, and PCI Express 2.0, for all sorts of sophisticated 3D applications

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although 8x8x surely enuf for older games.
:shrug: er um P45 a single card mobo or low end CF then...?

If you look specifically here: http://www.tomshardware.com/reviews/...0,1915-10.html

You'll see that even at 1900x1200, High Quality, the framerate from by going from PCIe 2.0 16x to 8x, is 1.3fps....

Something about the Tweaktown review seems....wonky.

All I know is that we keep saying we won't need the bandwidth, but eventually we're going to get there, so maybe we're finally reaching those limits?

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Originally Posted by D-Cyph3r

The look at some of the dozens of reviews that are up?

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oh i have been doing my homework :), but none have any eq2 tests posted. was just hoping that someone here that had one could try the trial and give some impressions.

I heard that ATI Xfire / SLI doesn't support dual screening, what's the story on that?

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Originally Posted by Akane

I heard that ATI Xfire / SLI doesn't support dual screening, what's the story on that?

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crossfire does sli does not afaik

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Originally Posted by Akane

I heard that ATI Xfire / SLI doesn't support dual screening, what's the story on that?

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Niether used to, now, xfire does for sure, SLI Im not sure. Havent kept up on their drivers in a while.

HIS HD 4870 is out in Hong Kong

Two shops in Hong Kong are selling the HIS HD 4870 for HK$2390 / US$306. I don't know about you but I'm hoping our friends in Hong Kong can sell enough of these cards so that AMD has to move the date up to say about July 1.

Here's an OCW thread you might be interested in.

AMD Radeon HD4870 Retail product on sale IN HK

Sweet, just chucked my 8800GTS on the market, hopefully 4870x2 makes it out on time or else I'm screwed with no video card to use.

http://img410.imageshack.us/img410/3...2498us4gp0.png

http://forum.beyond3d.com/showpost.p...postcount=4420

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Originally Posted by johnp1983

http://img410.imageshack.us/img410/3...2498us4gp0.png

http://forum.beyond3d.com/showpost.p...postcount=4420

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That comes from this thread...

http://translate.google.com/translat...a%3Dpage%253D1

If this is to be true, looks like the 4870 is a damn fine card.

^^
looool

4870X2 is going to dominate so hard

Here are a couple more tidbits.

ASUS Launches World's First 1GB Onboard Memory Version for EAH4800 Series

The news item disappeared for a time but then came back.

Attachment 80861
Attachment 80862

Hidden in those specs for the HD 4850 cards is a 512MB Asus EAH4870/HTDI/512M card. I need a new leather mouse pad.

And then there's this from a Canadian online retailer. They have a Sapphire HD 4870 online sale $328.95, no stock.

Attachment 80860

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Originally Posted by Motiv

That comes from this thread...

http://translate.google.com/translate?hl=en&u=http%3A%2F%2Fwww.hkepc.com%2Ffor um%2Fviewthread.php%3Ftid%3D1007750%26extra%3Dpage %253D1

If this is to be true, looks like the 4870 is a damn fine card.

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That must be where OCW got their images that I posted here.

I can't find those bar graphs in that translated link.

Wow :cool:
Looks like a Singular 4870 is nearly up there with the GT280 GTX. and that the Crossfire is near to the 280GTX SLi
I wonder if ATi crippled their benchmarks using some sort of 3rd tier CPU instead of a Core2Quad Extreme Yorkfield as well.
If that is the case than a QX9650 on a X-38 will get some serious Crossfire Loving.
I wonder if some board partners will release 800Mhz versions with custom coolers and 1GB of RAM :p:
John

what's about this:


new hotfix for 4800 series:
It has numerours tweaks and changes. I would recommend using it.

Dave Baumann B3D

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Originally Posted by Kai Robinson

If you look specifically here: http://www.tomshardware.com/reviews/...0,1915-10.html

You'll see that even at 1900x1200, High Quality, the framerate from by going from PCIe 2.0 16x to 8x, is 1.3fps....

Something about the Tweaktown review seems....wonky.

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http://media.bestofmicro.com/B/Z/989...x1200_high.png

>Zero< AA-^

http://media.bestofmicro.com/C/M/989...allofduty4.png
...^

but yeah not exactly anything to write home about, considering it's a 9800gx2....but,

the flight simulator with "game AA and AF" whatever settings they may be:
http://media.bestofmicro.com/C/R/989...simulatorx.png
makes me think that ultra high AA and AF setting may blow yr bandwidth out, in some games.

even though most of the graphs show virtually NO difference between 8x and 16x pci-e2.0 with a 9800gx2, most of these are done with 0 AA, and or with games like prey and the like that are in the 100fps zone anyway, rather than a crysis like uber graphics bound/bandwidth limit pushing situation.


but anyway, 85fps instead of 100fps big whoopee do, eh? doubtful that most would notice any bandwidth limitation with 8x8x...
i guess
http://www.zanarkand.co.uk/ww/32.PNG
^-huckleberry hound :D

http://www.kkk.com.ua/uploads/2007/11/pcie_01.png

Heres another example of performance of 8x vs 16x :up:

"spills to system RAM" oo interesting

doesn't technically every gfx card use system ram for games to some extent?

i was assuming/guessing they were referring to data that should be kept in vram, but as i do not know how it works...

Radeon™ HD 4800 Series Hotfix IS OUT!

http://support.ati.com/ics/support/K...estionID=35298

This Hotfix improves overall performance and stability.

All the benchs needs to redo

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Originally Posted by ORBR

Radeon™ HD 4800 Series Hotfix IS OUT!

http://support.ati.com/ics/support/K...estionID=35298

This Hotfix improves overall performance and stability.

All the benchs needs to redo

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If link says "session expired":
Start here: http://support.ati.com/ics/support/d...asp?deptID=894
then scroll down to [ Most Recent Topics ]

2. Radeon™ HD 4800 Series Hotfix 6/20/2008

Video ram is shared on 48xx with crossfire mode.

For 3D, and HD decode.

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Originally Posted by madcho

Video ram is shared on 48xx with crossfire mode.

For 3D, and HD decode.

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From PCInLife? Source? :D