the 4850 is a hell of a sexy card!
and it's as low as around 140 € here in germany. i'm definately on the verge of buying one - but on the other hand i can't estimate in which direction nvidia is heading with it's physx and cuda. :(
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the 4850 is a hell of a sexy card!
and it's as low as around 140 € here in germany. i'm definately on the verge of buying one - but on the other hand i can't estimate in which direction nvidia is heading with it's physx and cuda. :(
Does anyone know if the 4 mount holes at the side of the 4870 GPU are the same dimensions as the 1900XT
This is the block i am using on my 1900XT
http://www.komplett.no/img/p/200/325718.jpg
I'd do the same, CF on a P35 is severely limited by the fact that is has to use the 2nd card on a 4x PCIe gen 1 bus and this second bus is coupled to the southbridge which hampers latency and bandwidth even more. So get a 4870 and clock it like crazy or upgrade to a P45 or a X48/X38 board. I'd go for the former option, Nehalem is not too far from now....
Hey bro, i will be glad to help, i will have a full review up once my new ram arrives in about 3 hours from now, review will be up later tonight, i have all the games up and ready to be benched, i just need to get my memory stable. :up: P45 looks good for now as far as crossfire goes.
I can tell you this, i got a little over 19k 3dmark 06 @ 1920x1200 with my cpu at 3.8ghz and my memory running at a horrible single channel, 1 dimm 2gb at 570mhz cas 7, they have a better cpu at 4ghz, and memory configuration, and scored 1,000 points less.......my results are with vista 64 also.
4870 + some basic watercooling + hard vmod + OC LIKE A PSYCHO = win
Hmm I hoped I waited for the P45 :rolleyes:
Now I will get the 4870 and WC it with a EK.
But cant wait to see 4870x2 results.
Thanks man!! Will search for your results when I wake up in the morning. If you gonna post them in a new thread please send me a PM with a link to it.
As you have already mentioned Asus P45 seems to give the expected performance. Maybe is only a Gigabyte thing with those weird results but then again the difference really becomes obvious in game tests. Vantage shows a bit of difference and then you can clearly see the difference in game tests. 3DMark06 shows little difference even in their tests.
Looking at the review again the difference is clealry visible when 4xAA/16xAF is used. So please make sure you test bench with those settings too.
Ok i have no idea what to buy a HD4850 CF setup or the HD4870. It will be used for gaming at 1680x1050, and it only has to last for 1 year max :D
Every new AMD/ATi generation 1 buy new cards. So any tips?
And yes i have seen all the reviews but just can't make up my mind about what is the right thing to pick.
well, if your on a tight budget and im assuming you are or you would consider 4870xfire, why dont you buy 1 4850 and see if that suits you and if it dont then you could always add another or a 4870.
I'd go with the 4870... 2 reasons
1.) In cf, adding a 4850 would slow your 4870 down to act almost like a 4850.. load balancing.
2.) In time, if the 4870 gets a bit slow for your requirements, a second will be cheaper then what you bought the first one for. Additionally, adding a 4870x2 may be a very viable option for a tri crossfirex setup. In a years time, they could also be quite cheap.
would this work well together?
http://www.motherboardpro.com/images...r.-P45-T3R.jpg
http://www.motherboardpro.com/DFI-LP...ard-p-660.html
with 2 x 4870 1gb cf
also is a e8400 @ 4ghz enough for no bottlenecking
Should work great together. 4ghz should be adequate, I'd doubt there would be any noticeable bottleneck at that clock with these cards.
Looks like R700 is in my future:
Article by CNET
Wow, if true then R700 is going to be incredible.Quote:
For ATI, the execution of this chip-ganging strategy is the key. And this is where ATI appears to have been successful. "The inter-processor communications. Getting that to work has been the trick. This is what ATI has done. They've come up with this stellar way of doing inter-processor communications so they can in fact get the scaling," according to Peddie.
...*snip*...
AMD-ATI's upcoming R700 (rumored to be called the 4870 X2) two-chip graphics board will be the ultimate test of this strategy.
"It's a new proprietary inter-processor communication technology. If they put these two chips on one board and it does scale properly, then they have pulled off a coup," he said.
"When you gang up graphics chips (using the traditional Scalable Link Interface or CrossFire technologies) they roll off pretty fast. ("Roll off" implies that performance doesn't scale up well.) "So when you put two boards in, you don't get twice the performance but you (only) get one and a half. You put four boards in and you (only) get about 1.7, 1.8. What ATI is saying is that with two chips using (their) proprietary inter-bus, they will get 1.8 (the performance) with two chips. If that's true, you can expect to see four of them giving you something around 2.5."
Getting 2.5 times the performance from four boards would be a masterstroke for ATI.
The previous ATI dual-chip solution was very different, Peddie said. "The HD 3870 X2 was not a proprietary bus but a CrossFire connection. The CrossFire connection and the SLI connection are at the very, very end of the pipeline. Not the most efficient place to do an inter-processor communication. That's one of the reasons ATI has abandoned it."
Of course. It was done before the card even launched. Would you expect any less?
http://www.xtremesystems.org/forums/...d.php?t=190990
It doesn't change the fact that scaling is hurt by the fact that 1 GPU stalls (adds frametime) while it waits for data from the other GPUs memory in the case where games are not coded with multi-gpu in mind.
This also has nothing to do with microstutter, but we'll see.