ATi 4870X2(R700) PCB Debut

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07-12-2008, 02:24 PM
cegras

Quote:

Originally Posted by Chickenfeed

Outside of 2560x1600, 2 X2s would be complete overkill 99% of the time. Sure if you want to use maximum amounts of anti aliasing at lower resolutions, you could still leverage some of this extra horse power but it would come at a high price of course. I doubt gains would be that substantial even at 1920x1200. Then again most people who'd spend $1400 or so on gpus and a power supply alone probably can manage to afford a 30" LCD.

Overkill?

OVERKILL?

I .. I .. I'm at a loss for words. Overkill and an ATI product paired together in one sentence!
07-12-2008, 03:01 PM
mascaras

More rumors:

Quote:

Early benchmarks of 4870X2

Here are some early estimates of the benchmarks of the Radeon HD 4870X2.

3D Mark06 19K
3DMark Vantage P12000
Crysis at 1600x1200 50 fps

* QX9770 at 3.2GHz on Intel X48 mainboard

http://my.ocworkbench.com/bbs/showth...threadid=75297
07-12-2008, 03:14 PM
y2kbos

3d mark 19k is very impressive for a 3.20ghz Quad.

9800gx2/8800gtx sli get about 15 - 16.5k at those clock speeds.
07-12-2008, 04:10 PM
Akabeth

Quote:

Originally Posted by mascaras

More rumors:

:shocked:
07-12-2008, 04:39 PM
adamsleath

Quote:

CRT monitors are not good for your eyes

so can any form of eyestrain.

one major cause of MYOPIA is constantly using short sight - impairing long sight by constantly using short focus.
some popel have stronger eyes genetically and are less prone :D
lol dude.

regarding the microstutter issue from sampsa's testing that's good news so far :up:
07-12-2008, 04:43 PM
Chickenfeed

19000 3D06? I can't imagine what these will get with a Core 2 at 4ghz + once you overclocked the card.

As far as CRTs go, I agree they tend to still be quicker but honestly, the slight delay I get with my panel is liveable and I'm used to it. Sure if I compare, subjectively a CRT will likely seem quicker in my head but at the same time theres the aforementioned eye strain. I'd get headaches on my CRT at anything below 100Hz. 4:3 is more or less dead anyways :/
07-12-2008, 04:43 PM
GoldenTiger

Holy... I might just have to sell my 4870 for a 4870X2... I guess there's a reason this is called "Sparta"... MADNESS!
07-12-2008, 04:44 PM
MGreg

Quote:

Originally Posted by mascaras

More rumors:

:eek: can't wait
07-12-2008, 04:57 PM
AriciU

Here's a run with 2 x 4870's with the E8500 @ 4000. X2 shouldn't score any less/more IMO. The video card is not OC'ed by the way and no tweaks were used... this is my daily setup, 1 year old XP.

http://img520.imageshack.us/img520/5...dm06so0.th.jpg

Offtopic: anyone know if you have to do anything special in Vista 64 to get crossfire working properly? I just ran Vantage and got only ~9k / ~26fps for GPU tests and i noticed people usually get around 13-14k at 4000-4200mhz with ~45fps for the GPU tests. Using hotfix drivers... thanks.

http://img530.imageshack.us/img530/5...ancebm3.th.jpg
07-12-2008, 10:26 PM
natty

Quote:

Originally Posted by Chickenfeed

19000 3D06? I can't imagine what these will get with a Core 2 at 4ghz + once you overclocked the card.

As far as CRTs go, I agree they tend to still be quicker but honestly, the slight delay I get with my panel is liveable and I'm used to it. Sure if I compare, subjectively a CRT will likely seem quicker in my head but at the same time theres the aforementioned eye strain. I'd get headaches on my CRT at anything below 100Hz. 4:3 is more or less dead anyways :/

If you have a 120hz CRT paired with a game that can run at 120fps then you are in gaming heaven.

And if you add a mouse that can poll at 1000hz.... :slobber:
07-12-2008, 10:36 PM
adamsleath

true i do like widescreen....got a 32" sony crt for that :p:...try putting that on yr desktop :lol:

but 120fps is gonna be possible with 4870x2 perhaps in a few more titles than before.
07-12-2008, 11:21 PM
hias

I'm thinking about a tri-CF setup (1x4870X2 + 1x4870), because I already got a 4870.
I really doubt that there won't be any microstutters, especially in high resolutions when 512MB won't be enough.

What do you think about that?
07-12-2008, 11:31 PM
AriciU

Quote:

Originally Posted by hias

I'm thinking about a tri-CF setup (1x4870X2 + 1x4870), because I already got a 4870.
I really doubt that there won't be any microstutters, especially in high resolutions when 512MB won't be enough.

What do you think about that?

Running the 3rd 4870 on an X4 slot is going to get you nowhere. Check out 3 x CF scaling and see for yourself. It scales like crap to put it in words.
07-12-2008, 11:39 PM
hias

But you only need 2 pcie slots. X38/X48 offer 16lanes/16lanes (2.0) and P45 x8/x8 (2.0)
07-12-2008, 11:42 PM
AriciU

Quote:

Originally Posted by hias

But you only need 2 pcie slots. X38/X48 offer 16lanes/16lanes (2.0) and P45 x8/x8 (2.0)

Yeah, i just re-read that and noticed. The "tri" part confused me... i was thinking of 3 physical cards installed. :) Hopefully it will scale properly. We'll just have to wait and see :D
07-13-2008, 12:29 AM
Cooperdale

Quote:

Originally Posted by AriciU

Running the 3rd 4870 on an X4 slot is going to get you nowhere. Check out 3 x CF scaling and see for yourself. It scales like crap to put it in words.

But you would have 2Gb on the X2 and 512Mb on the 4870 and only use 512Mb I think.

Quote:

Originally Posted by AriciU

Offtopic: anyone know if you have to do anything special in Vista 64 to get crossfire working properly? I just ran Vantage and got only ~9k / ~26fps for GPU tests and i noticed people usually get around 13-14k at 4000-4200mhz with ~45fps for the GPU tests. Using hotfix drivers... thanks.

I was wondering the same thing. I hope it works fine on Vista 64.
07-13-2008, 12:57 AM
spoof

Quote:

Originally Posted by mascaras

More rumors:

I think that Sampsa should say if this numbers are right or wrong ...
07-13-2008, 01:03 AM
Sampsa

Quote:

Originally Posted by spoof

I think that Sampsa should say if this numbers are right or wrong ...

why is that?
07-13-2008, 01:11 AM
Chickenfeed

Quote:

Originally Posted by natty

If you have a 120hz CRT paired with a game that can run at 120fps then you are in gaming heaven.

And if you add a mouse that can poll at 1000hz.... :slobber:

Were there ever any CRTs that could even do 120Hz above 1600x1200? I'll take higher resolution and slower performance than what a good CRT would do for me any day but thats just me. Could never go back from 1920x1200 :cool:

@Hias

As far as doing CF with a 512MB 4870 and a X2, I think it would be pointless as you won't have full access to the 1GB on the X2. The memory has to be mirrored in each cards memory bank and given the 512 on the 4870 is the lowest memory amount your stuck with 512MB and not 1GB. There *might* be some reasoning to this with a 1GB 4870 but even then I hardly see the point as scaling beyond 2 gpus tends to suck like I've said.
07-13-2008, 01:34 AM
hias

Quote:

Originally Posted by Chickenfeed

As far as doing CF with a 512MB 4870 and a X2, I think it would be pointless as you won't have full access to the 1GB on the X2. The memory has to be mirrored in each cards memory bank and given the 512 on the 4870 is the lowest memory amount your stuck with 512MB and not 1GB. There *might* be some reasoning to this with a 1GB 4870 but even then I hardly see the point as scaling beyond 2 gpus tends to suck like I've said.

That's what I was afraid of....

hope the X2 will be powerful enough for Crysis VH 1920x1200 4xAA/16xAF
07-13-2008, 01:50 AM
AriciU

No way man. By the time Crysis very high, 1920 with AA/AF will be playable Crysis 5 would already be out.
07-13-2008, 02:04 AM
hias

GTX 280 SLI scores 29.7fps avg. Link

Your 4870 CF should be able to scorce 22.5fps. Link
07-13-2008, 02:08 AM
Origin_Unknown

the x2 looks great but im guessing that the dfi x38 users like myself need to hope that these cards work on this board unlike the 3870x2'
07-13-2008, 02:23 AM
biohead

Quote:

Originally Posted by Sampsa

Ok, I finished testing with R700, 4870 CF, 3870 X2 and GeForce 9800 GX2 (Single and SLI mode) and recorded frametimes in Crysis and Unreal Tournament 3 demo:

The worst case scenario happened with 3870 X2 in Crysis when every other frame was rendered after ~21,5 ms and every other after ~49,5 ms. However in UT3 demo 3870 X2 provided stable ~11,5 - 12,6 ms rendering times between the frames.

R700 seems to be very strong and it rendered every frame after ~21,6 - 22,1 ms in Crysis and ~11,5 - 11,9 ms in UT3.

Also 4870 CF provided equally good results compared to R700 and rendered every frame after ~21,3 - 21,7 ms in Crysis and ~11,2 - 12,1 ms in UT3.

GeForce 9800 GX2 showed alot more variation in rendering times and frames were rendered after ~21,9 - 25,1 ms in Crysis and ~7,4 - 11,5 ms in UT3.

PLEASE NOTE!

These results are measured and analyzed with simple tools including Fraps and Excel. In my own conclusion, it seems that microstuttering depends on game engine and if we leave 3870 X2 in Crysis out from the results it looks like NVIDIA's SLI (9800 GX2) is suffering more from microstuttering than AMD's CrossFire.

thanks for that.

http://www.xtremesystems.org/forums/...&postcount=527

but still i'm just thinking that the faster the cards results in less microstuttering because CPU becomes the bottleneck.
07-13-2008, 02:37 AM
flopper

if we look for things to go wrong and be flawed, we never enjoy the good.

This is the same as people playing fps using lcd, some never notice input lag and some do.
those that do are measurin differences that few ever get to notice.

Microstuttering isnt an issue.
peoples perceptions are.

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