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[Official] AMD Radeon HD 6850/6870 Owners Thread - Page 591

post #5901 of 6939
Quote:
Originally Posted by Catscratch View Post

Quote:
Originally Posted by smoke420 View Post

crossfire 6850's is not much behind a 6850 + 6870 setup.I would go as far as saying you will see no difference in anything but benchmarks and even then very small. 6850's are great granted you have to turn down settings in some game for eyefinity but for a playing games at 1080p you wont be disappointed. One thing is you have to really look as I wouldn't buy one without voltage control it makes a big difference in overclocking.I get great performance out of my cards at 1000/1050. could go even higher but no need.

Woah, I wonder how 6850 CF at 1ghz would perform biggrin.gif Well, the prices aren't going anywhere down even with 7000 series released here, so i'm also thinking of going 6850 CF. However, I can't decide on the cooler.

Accelero L2 Plus vs Accelero S1 Rev.2

Even on their own site, Accelero L2 Plus is pretty bad cooling at 2k rpm, 7770 60.4c, 6850 has higher TDP so, i'm going towards S1 Rev.2. Actually S1 PLUS can do 61c on 7770 in passive Mode ! And 48.5c with a 12cm fan. S1 Rev.2 shouldn't be far behind.

And, L2 Plus height is 51mm with fan and S1 Rev.2 should be around 18.5mm + 25 = 43.5mm which is lower so a bit more space under it.

PS: Sapphire 6850 is 150$ but 7850 is 275$ here. That's why I can't upgrade. 7770 doesn't make sense. There are no direct comparisons on internet on 77xx CF vs 68xx CF because all review sites have "contracts" with manufacturers. If they show 6850 CF beats the crap outta even 7770 CF (which is true), how would they sell biggrin.gifI hate AMD for downgrading 6800 series to 7700 series and making the correct segment 7800 series overpriced. Failure.

Accelero L2 Plus is not good in a crossfire configuration. my friend had two on 5770s and the top card overheated no matter what
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post #5902 of 6939
Quote:
Originally Posted by chino1974 View Post

Take it from someone who has a crossfired 6870 set-up. Yes they will definitely outperform a 6950. And as for double your framerate no not double but you'll get about a 30-40% boost. I was asking the same questions a few months ago when I wanted to upgrade my 6870. I did alot of asking and research and decided it was cheaper for now and better outcome to crossfire my 6870 with another one than change cards. Unless your willing to spend $350-400 for a 7950-7970. And then you wont really be boosting it so much more as to make it worth speding that much just yet. If I were in your shoes and I was I would go Crossfire and wait till 8000 series comes out before fully upgrading. thumb.gif


Are you using a single monitor?

There was definately an increase of 30-40% with single monitor?
   
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post #5903 of 6939
Quote:
Originally Posted by sinnedone View Post

Quote:
Originally Posted by chino1974 View Post

Take it from someone who has a crossfired 6870 set-up. Yes they will definitely outperform a 6950. And as for double your framerate no not double but you'll get about a 30-40% boost. I was asking the same questions a few months ago when I wanted to upgrade my 6870. I did alot of asking and research and decided it was cheaper for now and better outcome to crossfire my 6870 with another one than change cards. Unless your willing to spend $350-400 for a 7950-7970. And then you wont really be boosting it so much more as to make it worth speding that much just yet. If I were in your shoes and I was I would go Crossfire and wait till 8000 series comes out before fully upgrading. thumb.gif


Are you using a single monitor?

There was definately an increase of 30-40% with single monitor?

in heaven benchmark i got exactly a 100% increase in performance
in games i'd say it's like 75-90% depending on the game http://www.anandtech.com/bench/Product/301?vs=290
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post #5904 of 6939
Battlefield 3 biggrin.gif
   
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post #5905 of 6939
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post #5906 of 6939
Quote:
Originally Posted by ihatelolcats View Post

in heaven benchmark i got exactly a 100% increase in performance
in games i'd say it's like 75-90% depending on the game http://www.anandtech.com/bench/Product/301?vs=290

Nowhere do those graphs show a 100% gain my friend. The most you see on thoe graphs is an increase of 82 frames and that was in the HAWX benchmark. 104 fps to 186 is not 100% . In no dual SLI or crossfire situation will you ever get 100%. But you do get anywhere from 30-50% 60% if your lucky.thumb.gif
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post #5907 of 6939
Quote:
Originally Posted by sinnedone View Post

Are you using a single monitor?
There was definately an increase of 30-40% with single monitor?

I'm using a 23" 1080 monitor and yeah I get at least 30-40% increase on all games. Some get alot more. Battlefield 3 does very well with crossfire as long as you have the right CCC and CAP combo. And as for the microstutter issue I hear alot of people talking about. I haven't boticed it abit on my set-up. Maybe it's a by set-up issue some get it some don't? But yes trust me bestbet is go crossfired 6850 or 6870 now if you already have one card. And wait for 8000 series before fully upgrading. Not worth selling your card and going full upgrade right now. The price to performance ratio is enough to warrant it at any card level. Because if you think about it a 7950 is worth about $320 and a 6870 you can get for under $200. If you already have one card now for under $200 you will have a set-up that will blow the 7950 out the water.
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post #5908 of 6939
True.

After looking at the average bump from the 6870 to the 6950 its not worth it. Unless it was like a really good deal like 140 or something.


Whats the right ccc (catalyst cc) and cap (?) for your crossfire setup?


What does microstutter look like?

In MSI Afterburner I usually stay at the 50+ framerate with dips in the 30's when theres alot of distruction/players on the screen (64). Is this an accurate way to measure framerates or is there a better program for that?
   
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post #5909 of 6939
Quote:
Originally Posted by chino1974 View Post

Quote:
Originally Posted by ihatelolcats View Post

in heaven benchmark i got exactly a 100% increase in performance
in games i'd say it's like 75-90% depending on the game http://www.anandtech.com/bench/Product/301?vs=290

Nowhere do those graphs show a 100% gain my friend. The most you see on thoe graphs is an increase of 82 frames and that was in the HAWX benchmark. 104 fps to 186 is not 100% . In no dual SLI or crossfire situation will you ever get 100%. But you do get anywhere from 30-50% 60% if your lucky.thumb.gif

i didn't claim that, but whatever

BF3 93% better
BFBC2 84%
crysis warhead 68%
ME2 69%
HawX 79%
etc

i think the ones with much lower scaling like civ 5 might be because of memory problems
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post #5910 of 6939
thats funny 100 x 25 multi dude u need to up tht to at least 4ghz thts why its running so low temps my 6100 runs at 36c loaded idels at 19c at 4.125 mghz an ill go higher once i figure out how to without bsod an so on lol:thumb:
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