Insane HD 4870X2 Crossfire-X scaling action!

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08-08-2008, 10:49 PM
Monkeywoman

1 Attachment(s)

HD 4870 X2: Crossfire-X-Interconnect

"Now it is clear what AMD means with Crossfire-X-Interconnect. It is a bidirectional link between two graphic chips with 5 GB/s. The total interconnect bandwidth by HD 4870 X2 is 21.8 GB/s against 6.4 GB/s by HD 3870 X2."

source; http://www.hardware-infos.com/news.php?news=2292
08-08-2008, 11:14 PM
Kai Robinson

Hang on, is the sideport only in operation with the X2's or is it in use with the regular crossfire bridges as well? I'm also assuming this is heavily driver dependant as well...
08-08-2008, 11:48 PM
rcofell

I would assume only with the X2s, since the CFBI connection in the diagram would represent the normal crossfire bridge, no? I haven't really kept up with things in depth, but I assume the crossfire bridge is only for transferring completed frames too(seeing how that diagram shows only unidirectional transfers).

If these gains prove to be at all true, I wonder how much of the improvement is from what I suspect would be a lower latency bus with easier addressing versus just the added bandwidth.
08-09-2008, 01:40 AM
ahmad

Thats quite impressive actually. Three way CFX?
08-09-2008, 01:42 AM
Leeghoofd

Quote:

Originally Posted by Shocker003

Where are all the Nvidia fan boys(WAR-B, have you seen these scores):bows:. All the same most people finially have something to upgrade. Maybe i will upgrade to HD 4870x2 by the end of the year, so that the price will drop and the beta drivers would have been replaced. Please is something wrong with XS mailing, as i don´t get my daily mails any longer:brick:

I received 600 plus mails today :) and why the demand for N fanboys ? each makes his own decision on buying a Gfx card.. enthousiasts buy +400 buck cards, but many gamers will go for the medium range cards, others prefer single GPU's, others don't have the PSU to power it, some peeps cases are too small,... the list is endless... it's not all about pure power... many can live with being at 40FPS at their preferred resolution, others need 150FPS...

ATI did one heck of a job here, top notch, competition is nice !!!
08-09-2008, 03:36 AM
Syn.

Quote:

Originally Posted by Kai Robinson

Hang on, is the sideport only in operation with the X2's or is it in use with the regular crossfire bridges as well? I'm also assuming this is heavily driver dependant as well...

SidePort goes through PCB it self, so the answer to your question is no.
08-09-2008, 08:58 AM
jaredpace

Quote:

Originally Posted by Leeghoofd

ATI did one heck of a job here, top notch, competition is nice !!!

You mean Nvidia struggling to compete with Ati's performance crown? :ROTF:

JK JK :)
08-09-2008, 09:12 AM
Monkeywoman

1 Attachment(s)

R700 Crossfire X Scaling Efficiency up to 104 %

"Chiphell seems to have some early numbers on the 4870X2 (& 4870X2 CF) slated for launch next Tuesday. On initial review, looks like CrossFireX scaling is really good (35-104% improvement) with an average of 66% increase over a single 4870X2. Impressive numbers for launch drivers.

We'll keep updating this story as more websites publish their numbers before the official launch."

source; http://gpucafe.com/2008/08/4870x2-be...-trickling-in/
08-09-2008, 09:51 AM
003

O. M. F. G.

Look at those speeds at 2560x1600 with 8x AA and 16x AF!!!!

My next pair of cards... I can't wait. Heck, I might not even water cool them.
08-09-2008, 09:53 AM
informal

This might be a nail in the coffin of the GTX280 SLI/TriSLI... I'm eagerly awaiting the clash of those.
Who could have thought that tables will turn so suddenly with RV770.One small chip to rule them all(until RV870 rocks us again :D)
08-09-2008, 10:25 AM
annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it. 4870x2 would be roughly 4-5 times faster than consoles' cards.
08-09-2008, 11:07 AM
spicypixel

Quote:

Originally Posted by annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it. 4870x2 would be roughly 4-5 times faster than consoles' cards.

Need != Want. :D
08-09-2008, 11:09 AM
Helmore

Quote:

Originally Posted by spicypixel

Need != Want. :D

True, although the world might have been better off if it were :p:
08-09-2008, 11:22 AM
ahmad

Quote:

Originally Posted by annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it. 4870x2 would be roughly 4-5 times faster than consoles' cards.

the luxury of such a choice is something a few people can enjoy.. With this kind of scaling, CPUs cannot keep up with the performance.
08-09-2008, 11:27 AM
negev

Quote:

Originally Posted by annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

Crysis.
08-09-2008, 11:47 AM
Eternalightwith

it's for my

Quote:

Originally Posted by annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it. 4870x2 would be roughly 4-5 times faster than consoles' cards.

Mitsubishi Diamond Pro 2070SB :D
08-09-2008, 12:29 PM
Kai Robinson

Quote:

Originally Posted by negev

Crysis.

And unfortunately, CF on Crysis doesn't really work....other games scale resonably well, but a 10fps gain from adding a second HD4850 for me, isn't worth it. Cervat Yerli, i'm staring at YOU.
08-09-2008, 12:46 PM
JargonGR

Hmm even for my 30" monitor one 4870X2 seems enough...Maybe I will start with one and get a second months later. But wait! This is what I said last time with my 8800GTX and then got a second one 3 days later. And looool I have not played more than 6-7 games during the last 3 years.
08-09-2008, 01:52 PM
Helmore

Quote:

Originally Posted by Kai Robinson

And unfortunately, CF on Crysis doesn't really work....other games scale resonably well, but a 10fps gain from adding a second HD4850 for me, isn't worth it. Cervat Yerli, i'm staring at YOU.

Who the heck is Cervat Yerli? :shrug:

@JargonGR: But how much/how long have you played those 6-7 games?
08-09-2008, 02:02 PM
Leeghoofd

Quote:

Originally Posted by Helmore

Who the heck is Cervat Yerli? :shrug:

@JargonGR: But how much/how long have you played those 6-7 games?

He's the guy on the dartsblock of every Crysis user with multiple GPU's setups... :rofl:
08-09-2008, 02:12 PM
Hu1kamania

Quote:

Originally Posted by annihilat0r

Why would anyone without a 30" monitor need a 4870x2 in place of a 4870 is beyond me.

Why would anyone EVER need two of them is really hard to understand.

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it. 4870x2 would be roughly 4-5 times faster than consoles' cards.

Are you serious? I think you ultimately answer your own question in more ways than one.

My honest opinion is that two of these wont be enough for me, but I just might have to make due....as usual.

Until I can run EVERY game at the highest concievable quality, without compromise (in game and external configuration) and retain totally fluid frame rates (BARE MINIMUM of 45fps) I wont be totally happy.

Also, all games are NOT for console. Such as most every decent MMO.
08-09-2008, 02:35 PM
Papu

Quote:

Originally Posted by Hu1kamania

Are you serious? I think you ultimately answer your own question in more ways than one.

My honest opinion is that two of these wont be enough for me, but I just might have to make due....as usual.

Until I can run EVERY game at the highest concievable quality, without compromise (in game and external configuration) and retain totally fluid frame rates (BARE MINIMUM of 45fps) I wont be totally happy.

Also, all games are NOT for console. Such as most every decent MMO.

yeah but most mmo's are made so they can run on Supermarket Laptops , I dont think an mmo would sell very well if it was only able to run on machines with 4870's and quadcores with 4gigs of ram
08-09-2008, 03:09 PM
Xello

Quote:

Originally Posted by annihilat0r

All games are for consoles, consoles' graphics chips aren't any better than a 8800GT.

On a PC you've got more resolution and AA/AF, but that's about it.

What the hell?
08-09-2008, 03:12 PM
Papu

Quote:

Originally Posted by Xello

What the hell?

i think he missed that little game called crysis :rofl:
08-09-2008, 03:15 PM
Aberration

Show me a good flight simulator on a console. And dont give me no arcade crap like Ace Combat.

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