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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 1496

post #14951 of 38701
Quote:
Originally Posted by Daffie82 View Post

Thanks for the feedback +rep
Do you know why they mention in the review 4xMSAA + FXAA ? Seems strange to me, isn't it the one or the other? Both msaa + fxaa seems a little unlogical to me.

Yeah you can run both MSAA 4X and FXAA . But MSAA 4x has a performance hit. FXAA has almost none. You should check for yourself how the image quality is when both are chosen.
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post #14952 of 38701
Quote:
Originally Posted by djohny24 View Post

Nope, trixx gives me the same max frequency.

That's really strange, it lets me go way past that on my 7950 and I haven't changed anything in the settings.
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post #14953 of 38701
Quote:
Originally Posted by R.D.BID View Post

What kind of performance can I expect with Crossfire 7950's @ 5760x1080 in current games like BF3?
I'm looking at the Sapphire Flex because I want to eventually run with 4 monitors. 3 in eyefinity +1 extended.

Quote:
Originally Posted by Kokin View Post

A single 7950 will do 3240+ x 1920 very well, but tends to lag a bit when done in 5760+ x 1080. Crossfire will blow any game out of the water right now unless you're heavily into modding texture packs.

bah... even my two 7970 @ 1000 can't handle Ultra settings, it can do High with breeze at 5760x2160 but if i put Ultra it becomes like a slide show tongue.gif
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post #14954 of 38701
Quote:
Originally Posted by eternal7trance View Post

That's really strange, it lets me go way past that on my 7950 and I haven't changed anything in the settings.

Maybe is only this model?

My card dont have dual bios.
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post #14955 of 38701
Quote:
Originally Posted by djohny24 View Post

Nope, trixx gives me the same max frequency.

Have you unchecked "ULPS" in the settings? Just in case - I have no idea if that's the actual max for your card.
   
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post #14956 of 38701
Quote:
Originally Posted by raghu78 View Post

Yeah you can run both MSAA 4X and FXAA . But MSAA 4x has a performance hit. FXAA has almost none. You should check for yourself how the image quality is when both are chosen.

''As you can see, at less than 5% performance hit, and better image quality than 2X MSAA, FXAA is the way to go. It is illogical and pointless to use 2X MSAA in this game. FXAA does a better job, providing 4X MSAA-like quality on the edges. 2X MSAA causes a large reduction in performance, yet FXAA does not. When you look at 4X MSAA it gets even worse for MSAA in this game. 4X MSAA has a severe impact on performance and on the whole doesn't do as good as a job as FXAA does. You would be nuts to run MSAA in this game. FXAA is where it is at.''

Comes straight out of the review of MP3 you posted.

Very strange that in the other review they did a test with 4xMSAA + FXAA and still get 60+FPS while in the MP3 review they say its not really playable that way.

I guess I'll just run it in FXAA wink.gif
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post #14957 of 38701
I just started preping my 7970 (Gigabyte Windforce) card for proper over-clocking. With CCC I ramped it up to 1075 core and 1450 memory, didn't change anything else but checked off the +20% power draw. Gonna let it break in with those settings for a while before adjusting voltage with MSI Afterburner.

Not sure if I need to worry about my temperatures though. I get different readings from GPU-Z depending on the game.

Crysis 2 maxed out with HD Textures and DX 11 at 1900X1200 runs at 63/64.
Anno 2070 though maxed out seemed to stress it more running at 71.
My idle is anywhere from 40-50 after I've been playing a game.

Wondering how much headroom that gives me when I proper over-clock it. Hoping to reach 1250/1600? [H]ardOCP got it to 1300 but I'm not gonna go that high. I have an empty 120MM fan slot on the side of my case that sits next to my PCI slots, how much will adding one of those affect my temperature?
post #14958 of 38701
Quote:
Originally Posted by TheRaven View Post

I just started preping my 7970 (Gigabyte Windforce) card for proper over-clocking. With CCC I ramped it up to 1075 core and 1450 memory, didn't change anything else but checked off the +20% power draw. Gonna let it break in with those settings for a while before adjusting voltage with MSI Afterburner.
Not sure if I need to worry about my temperatures though. I get different readings from GPU-Z depending on the game.
Crysis 2 maxed out with HD Textures and DX 11 at 1900X1200 runs at 63/64.
Anno 2070 though maxed out seemed to stress it more running at 71.
My idle is anywhere from 40-50 after I've been playing a game.
Wondering how much headroom that gives me when I proper over-clock it. Hoping to reach 1250/1600? [H]ardOCP got it to 1300 but I'm not gonna go that high. I have an empty 120MM fan slot on the side of my case that sits next to my PCI slots, how much will adding one of those affect my temperature?

the side fan definitely will help. Let it be an intake fan blowing cool air onto the card. Your temps at load are a bit high especially in anno 2070 . You need to increase fan speeds manually. hardocp reached 1300 Mhz but they also pushed fan speeds to 80%. See what suits you in terms of fan noise. Maybe build a custom profile using MSI AB. You need to keep load temps below 70c if you want to keep your card stable at high overclocks. First try 1150 Mhz with stock voltage . push clocks 25 Mhz higher and test for stability. if its unstable then push voltage higher in small increments of 0.05v and arrive at a good balance of clocks, temps, fan speed / noise .
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post #14959 of 38701
Quote:
Originally Posted by raghu78 View Post

the side fan definitely will help. Let it be an intake fan blowing cool air onto the card.

That would seem to be ideal for a reference card but wouldn't it be better to make the side fan exhaust for non-reference cards since they are dumping heat back into the case?
post #14960 of 38701
hi guys, i'm getting low performance with my sapphire 7950, can you please help me?
i wrote a theard about it: http://www.overclock.net/t/1296337/low-performance-with-sapphire-7950
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