RADEON HD 3870 AND 3850 Oc and Other experiences !!!

[wiak]

If you're interested in what HD 3850 256Mb cards can do in Crossfire in "Crysis" try my post here:

http://www.rage3d.com/board/showthread.php?p=1335274023#post1335274023

Mine can do 730|999 from Overdrive. I've tried overclocking with Rivatuner and one card will do 760 fine. It seems 3850s are voltage limited. Don't expect much more than 770.

This fellow was able to drive one up to 972 with a BIOS flash and a vmod.

http://www.xtremesystems.org/forums/showpost.php?p=2615229&postcount=454

I hope ATiTool works under Vista x64 with HD 3850s soon. I can run the slider up and when I hit apply it just resets.

Two of these @ 730|999 run "Oblivion" @ 1680x with 4xAA|8xAF and HDR almost exactly like my GTX @ 661|2040. The Crossfired HD 3850s actually have an edge in heavy grass. Usually on the order of 6-8FPS.

atitool is still beta, it crashes the gpu driver under 780mhz core, the artifact scanner crashes driver on my system to

rivatuner is more stable, atleast i get get it upto 945mhz on core, 13xx on mem with it, but still its not 3dmark stable go figure

 

[trog100]

my two 3870 cards on their own had to be lowered right down to 830-ish on the core to be really gaming stable.. cod 4.. crysis.. call of warez.. he he

so take all the crap u read with a large pinch of salt..

the ati auto tune thing banged the pair of em right up to max and said hunkey dory.. total bullshit thow..

trog

ps.. crossfire is a waste of space in crysis also.. no gains at all..

 

[zOaib]

my two 3870 cards on their own had to be lowered right down to 830-ish on the core to be really gaming stable.. cod 4.. crysis.. call of warez.. he he

so take all the crap u read with a large pinch of salt..

the ati auto tune thing banged the pair of em right up to max and said hunkey dory.. total bullshit thow..

trog

ps.. crossfire is a waste of space in crysis also.. no gains at all..

trog u need to check this thread out (KOREANS UNLOCK ATI HD 3870 CF POWER IN CRYSIS)

http://forums.techpowerup.com/showthread.php?t=47015

 

[HookeyStreet]

ps.. crossfire is a waste of space in crysis also.. no gains at all..

Thats because we are all waiting on a patch from EA/Crytek

 

[wiak]

am running at 870/1305 stable, crysis runs fine, 3dmark run runs fine, this is with new zalman VF900 cooler
http://service.futuremark.com/compare?3dm06=4189798
^^

 

[trog100]

am running at 870/1305 stable, crysis runs fine, 3dmark run runs fine, this is with new zalman VF900 cooler
http://service.futuremark.com/compare?3dm06=4189798
^^

your one does my two dont.. i tested two different cards with three different games over a one week period.. running fans flat out is worth about say another 10mhz with my cards..

one thing i did notice.. there is no quick cut off point.. i am used to 5mhz making the difference tween stable and unstable with a core speed.. these seem spread over a wider mhz range.. during crysis i started off thinking 855 was okay.. but during the game i kept going down right to 830 before the odd vpu recover stopped happening..

different cards will vary but i dont think many will run a true stable 860 core.. if yours does u are lucky and have a good one..

trog

ps.. we need a few more examples to get a better idea thow..

 

[trog100]

trog u need to check this thread out (KOREANS UNLOCK ATI HD 3870 CF POWER IN CRYSIS)

http://forums.techpowerup.com/showthread.php?t=47015

yes... but reading websites persuaded me to fork out good money for a 790x chipset board and another 3870 card.. what i actually got pursuaded me to ebay the pair of em in an attempt to get some of my wasted money back..

trog

 

[zOaib]

yes... but reading websites persuaded me to fork out good money for a 790x chipset board and another 3870 card.. what i actually got pursuaded me to ebay the pair of em in an attempt to get some of my wasted money back..

trog

i fell in the same trap , but they ran real good on my x38 , i think u must have had a better experience on an intel system , although my buddy is trying this out and he just called me and it has worked for him greatly , he is gaming at very high quality at 1600 x 1200 res only shadows and volumetric processing at high ......... getting 38-40 fps , so it does work , but he is also runnign a qx6850 so i am sure that helps it a lot too .............. anyways i sold my pair and am waiting to get the hd 3870 x2 when it comes out in jan ...............

PS even though this nvidia card i got right now to dangle me by till next wave of next gen cards , i miss the Catalyst AI , which makes radeons gamaplay smooth , i skip frames with this card even though when u see in fraps u r getting 60+ fps on UT3 and cod4 and bio shock =P

 

[HookeyStreet]

yes... but reading websites persuaded me to fork out good money for a 790x chipset board and another 3870 card.. what i actually got pursuaded me to ebay the pair of em in an attempt to get some of my wasted money back..

trog

Dont you think the AMD CPU is holding you back?

 

[jpierce55]

Boy, I hope the weather clears up today!

The AMD is holding it back, look at the results on orb. This thing loves cpu, I don't know how much real world applications are with the bigger cpu, but the 3dmark scores are massive.I could play with settings to find out but don't feel like screwing with it.

 

[Blacklash]

If you think Crossfire is a waste in "Crysis" you didn't read my link-

http://www.rage3d.com/board/showthread.php?p=1335274023#post1335274023

Examples; top = Crossfire off, bottom on. This is with two HD 3850 256Mb cards-







I've added "Oblivion" @ 1680x 4xAA|8xAF HDR @ 1680x with an untweaked .ini and all detail sliders right, with all on to the "Crysis" post. I show 1680x with texture, object, water and shader high and the rest medium with 4xAF in "Crysis" in the above link too.

 

[zOaib]

BackLash thx for an awesome bench, its more real world than the things that have been circulating on the net , and i know this works because my friend his very happy right now who bought my pair of hd 3870's of me , lol =)

( he keeps calling me on phone and saying that i am an idiot to sell him my pair ) little does he know i have my eyes set on hd 3870 x2

 

[trog100]

Dont you think the AMD CPU is holding you back?

with games absolutely not.. with 2006 and 2005 most definitely..

i aint saying crossfire dosnt work but just like multicore CPUs things have to be set up for it..

older games that already run 100 fps at the max resolution i can use might run 150 fps.. no real gain here..

for benching bet my 2005 score went up from 1800 to 1900 at the default resolution.. my amd system limits the score.. so no real gain here

with 2005 fully maxed out i get a nice 60% increase.. my grafix card limits the score.. a gain here but what use is it..??

but the one game i have that actually needs a frame rate boost.. crysis.. dosnt work with crossfire..

soooo old things that dont need it are likey to work with it.. new things that do are not likely to work with it..

i think tjhe real problem here is modern games are written (and funded) for and by nvidia.. nvidia pumped a lot of money into crysis..

trog

 

[trog100]

backlash

so how can crysis be made to work with crossfire.. please tell all the people like me who have tried it and failed.. serious question and i did read your link..

my experience with crysis and one or two 3870 cards.. any AA at all kills the frame rates stone dead.. crossfire has a slightly negative effect on frame rates..

u accuse me of not reading your link.. it seems u are accusing me of misleading information..

trog

ps.. oblivion runs very nicely fully maxed out on my system (50 to 60 fps) with just one 3870 card.. there dont seem much point in 2 x very nicely..

ps.. 2.. and having forked out £250 for the privilege of trying crossfire.. deciding it was a waste of space wasnt a decision i arrived at lightly.. believe u me..

 

[Random Murderer]

backlash

so how can crysis be made to work with crossfire.. please tell all the people like me who have tried it and failed.. serious question and i did read your link..

my experience with crysis and one or two 3870 cards.. any AA at all kills the frame rates stone dead.. crossfire has a slightly negative effect on frame rates..

u accuse me of not reading your link.. it seems u are accusing me of misleading information..

trog

ps.. oblivion runs very nicely fully maxed out on my system (50 to 60 fps) with just one 3870 card.. there dont seem much point in 2 x very nicely..

ps.. 2.. and having forked out £250 for the privilege of trying crossfire.. deciding it was a waste of space wasnt a decision i arrived at lightly.. believe u me..

i believe he's saying try the "oblivion" trick.
what you do is rename the game exec file to "oblivion.exe" and sometimes it will have a great effect on what ccc does. this is how you get fsaa to work in bioshock on dx9.

 

[zOaib]

backlash

so how can crysis be made to work with crossfire.. please tell all the people like me who have tried it and failed.. serious question and i did read your link..

my experience with crysis and one or two 3870 cards.. any AA at all kills the frame rates stone dead.. crossfire has a slightly negative effect on frame rates..

u accuse me of not reading your link.. it seems u are accusing me of misleading information..

trog

ps.. oblivion runs very nicely fully maxed out on my system (50 to 60 fps) with just one 3870 card.. there dont seem much point in 2 x very nicely..

ps.. 2.. and having forked out £250 for the privilege of trying crossfire.. deciding it was a waste of space wasnt a decision i arrived at lightly.. believe u me..

trog the way the koreans di it was , they used the config file form the demo version of crysis and copied it over to the game installation of crysis , and that is how they got CF to work , and that is what my friend did and he is joyfuly happy right now.

 

[Random Murderer]

trog the way the koreans di it was , they used the config file form the demo version of crysis and copied it over to the game installation of crysis , and that is how they got CF to work , and that is what my friend did and he is joyfuly happy right now.

do you have a copy of that file? i don't, and i have a second 3870 sitting next to me. the only game i need it for is crysis, and since crysis doesn't like crossfire and i couldn't decipher what the hell the koreans did to get it working i just didn't bother installing it.

 

[trog100]

all very very very odd.. are u guys saying that ati made a huge cock-up.. destroying the very essence of their spider idea by buggering up the real games ability to run two cards.. come on.. ?????

so a bunch of koreans.. zoabs friend.. and backlash know the secret the world wants to know.. how to make crysis work in crossfire..

dont get me wrong.. wierd totally incomprehensibly things can happen.. if true this one is near the top of the list... he he he

trog

 

[0elemental0]

so no problems fitting a vf900 to the 3870? business as usual? i have one on order but just wanted to be sure it was straight foward, aka vf700 on an x800. i idle at 50-51c and max at ~80c in tf2 on the stock cooler.

 

[Random Murderer]

so no problems fitting a vf900 to the 3870? business as usual? i have one on order but just wanted to be sure it was straight foward, aka vf700 on an x800. i idle at 50-51c and max at ~80c in tf2 on the stock cooler.

no problems at all. just make sure you leave the stock ramsinks on the card, as well as the heatsink on the vrm's.

 

[wiak]

so no problems fitting a vf900 to the 3870? business as usual? i have one on order but just wanted to be sure it was straight foward, aka vf700 on an x800. i idle at 50-51c and max at ~80c in tf2 on the stock cooler.

no problem, its even 20-40c cooler with the VF900-Cu compared to stock crappy cooler
the 3870 uses same mounting holes as X1900/X1800 so just follow that guide (holes that are marked 5 in the manual)

ps: am gonna change to stock VRAM heatsinks, so just ignore that part ^^

 

[wiak]

here is a update, i put thermal paste on all samsung chips, reinstalled old vram heatsink

 

[Ripper3]

Nice benchmarks so far, it's making me glad I bought a 3850, even more so than when they told me it was despatched from the warehouse .
wiak - Nice photo, I can't shoot for shit, even with a point-and-click camera that's meant to make it easy to take good photos, lol

Received mine from ebuyer just a few minutes ago, can't wait to pry open the box.
It was an absolute bargain, £101. May not be an OC edition, may only be the 256MB 3850, and may have the stock cooler with a crappy Powercolor sticker on it, but it'll kick my 8600GTS' arse.

 

[mikek75]

Nice one, don't blame you for not waiting for the 3870.... I've just cancelled my order with Komplett for a full retail3870, shipment slipped from the 18th to the 31st. Giving the BT shop (re-branded dabs) a go, they expect stock 1-2 days and give free delivery over £99. Its only the lite retail pack so I won't get the freebies, but £140 seems like a good price.

Let us know how you get on with the 3850, enjoy!

 

[Deleted member 24505]

Card looks nice wiak,but should'nt it have rubber rings were i marked? I have fitted one before and i'm sure it should have rubber rings there.Not sure why but in the instructions it says so.Could it be so it dont crush the core when you tighten it down?

like this-