This link, from Cex Computer

http://forum.lowyat.net/index.php?showtopic=2248795&hl=cex

yes bro, you can try phobya thermal pad first..According to Alvin's sales thread, G1 Glue is better than thermal pad in terms of heat transfer or in other words cooling performance. to be honest i dont like the look of it in my Rig..I'd prefer stock HSF, dual-X sapphire cooler or DCUII Asus cooler if its about a good looking rig hehehe, but I am into overclocking so I dont really mind all those things .

This post has been edited by shepard: Oct 25 2012, 04:11 PM

Just tried Virtu MVP and really shocked with the result on Heaven 3.0

MVP Off = 54.7Fps Ave
MVP On = 104.5Fps Ave

Setting:
Tess: Extreme
AA: 8x
AF: 16x
Everything on Max already

Is this real or what? I thought the score will at least increase about 10-20% avg but now its almost 100% like I'm using a CFx 7970


Will try Vantage, 3D11 and some other bencmarks later to see and confirm if this is a real deal


Update: Most of the games crash with Virtu MVP except BF3 so far with a nice boost on FPS. Well, this means MVP needs to be ON OFF depends on the games that we play. I'm not impress at all

This post has been edited by shepard: Oct 30 2012, 09:10 PM

^^

with Hyperperformance MVP on, metro2033 crash, 3dmark Vantage max FPS capped at 90fps = low score, Far Cry 2 crash, and I believe other games also got compatibility issue with MVP. So better not using it if it caused so much trouble.

Maybe other system dont have this issue with MVP, but for sure mine got problem with certain games.

Ya kevin, Mvp is good for 3DMark 11 only so far. my score was up from 11k to 14k when MVP is ON. However, today I manage to squeeze a little more power from HD7970 and successfully scored a 12k 3dmark11 without MVP . Unfortunately I cannot push my cpu clock higher due to average cpu cooling



This post has been edited by shepard: Nov 3 2012, 12:45 AM

From my past experience replacing stock thermal paste to MX-4, Yes you can see the change in load temps especially but not that much I would say more or less ~1-3degC cooler than before. I guess there's no harm to try it for yourself and feel the experience..if this is the first time you're doing this, be careful with the board and components there just as precaution.

After all we dont want to damage our expensive card just to reduce 1-2degC in load temps. Do it slowly and carefully . Good luck bro..

^ Are you both using 12.11beta4 or the earlier beta driver? Since I dont have any issue with 12.11 beta4. No crash in BF3 and no BSOD when running heaven 3.0, All games running just fine with a new boost in performance

May I know if you install the new 12.11beta4 after uninstalling previous driver or you just install it on top of your old driver? PC system is weird..even when using similar hardware, similar OS, similar driver etc..one got no issue while another got issues with their system...registry counts every single thing i guess or maybe even more complicated things are counted

I never uninstall old driver before installing the new one so far no problem occurred that's why I dont have any complaints on AMD Radeon's hardware, instead I love their products and software and yes I'm talking about single card here .

the steps to OC our GPU are pretty much the same:

Guru 3D: http://www.guru3d.com/articles_pages/radeo...ck_guide,2.html

Hardocp: http://www.hardocp.com/article/2012/07/02/...ii_top_review/3

You can use either MSI AB, Asus GPU Tweak or Sapphire Trixx(Download from my 1st post) to OC your HD7870 OC. each time we increase our GPU core and memory clocks, we have to test its stability by performing a GPU stress test and couple round of bencmark sessions. If our PC is stable after let say few hours of test, we may increase again the clock,

I prefer we do it one by one. Start with OC the GPU core first. Once we find the maximum stable clock...reduce it about 10-15MHz and that's our Max OC for GPU clock..then only we can start with overclocking mem clock by going thru the same process.

Whoa bro..i never use HD7870 before so cant comment about that...you can try it yourself and let us know how high it can go.

however, according to some of the reviews I think most of 7870s can be oc'ed up to 1250MHz with a voltage bump. Why not try it bro and update us

^ I think the max stable clock on GPU core and memory that we achieved is depends on GPU cooling performance as well...The better the cooling solution that we use, the higher OC potential or in other word higher max OC that we can get out from our GPU.

If we use reference AMD HSF, normally due to high temps or the noise we cannot push our card further for higher OC. If we use a WC on our GC, the max limit will be higher than using stock HSF.

OC potential for our card usually base on our gpu chip potential, temps, noise, cooling performance, gpu ram potential.

Usually WC > Aftermarket Cooler > Stock HSF for overclocking. Maybe Kevin can clarify more as I'm also newbie here.

This post has been edited by shepard: Nov 11 2012, 12:51 PM

Ok, if I understand your issue correctly. You're overclocking your 7870 for gaming, the GPU temperature looks fine to me. Your problem is BSOD while playing NBA2k12 and BF3 freezed during gameplay at specific area.

Could you let us know your driver version and which OC apps you're using to overclock your GPU, is it MSI AB, Asus GPU tweak or something else? It's also recommended to share your CPU specs as well...CPU,RAM oc'ed or not?

Have you tried play those 2 games at stock GPU clock? were BSOD and freezing occurred at stock GPU clock as well?

I dont know if you aware of this, and I dont like to share a bad news either but the truth is a lot of 7870's users out there are having a problem like black screen, PC freeze, driver reset etc.. I am not sure about BSOD though, can you please share with us your BSOD code? it should be something like 0x124, 0x101, 0x0A etc.. it could also be your games ( either ori or not?).

maybe other user with HD7870 card can enlighten us here? I'll try to get some info regarding your problem..

True, I believe that this is related to the hardware(7870) and driver compatibility issue or either the design of the hardware itself was faulty since I'm using 7970s without any of these issues since Jan this year until now. But I'm seeing the same problem when the time I'm using hd7850 just that not as serious as 7870. it could be AMD pitcairn design flaw or something like that, need to do more study with uncle G to get an answer..

I dont remember most of the 7870 users whose complaining about the issues only on Sapphire hd7870. It happened to all 7870 owners not only specific to Sapphire, you may check forums like guru3d, oc.net etc to get more info about this issue.

For those who're having a problem with hd7870, you may want to refer to below link for some information.

http://forums.guru3d.com/showthread.php?t=371032

I'm disappointed now...Far Cry 3 always crash at startup with 7970 single card or CFx. Does anyone facing similar issue on their HD7xxx series as well especially with Far Cry 3? Using catalyst 12.11 beta8 now with 12.11cap1

^ Thanks for the reply bro...just now re-enabled crossfireX and reset core/mem clock to default solve the problem.

Maybe there's a conflict within these 2 cards and the driver.

How's your FPS in FC3 btw..I'm getting 30+ FPS only at 1080p,ultra setting with 8xMSAA + HBAO. I think CFx is not working yet for this game

Yes bro, its already out. You can purchase it through Steam. In the menu there's co-op and multiplayer so yes we can play multiplayer with Far Cry 3. Graphic is a bit demanding when you set everything on Max..i bet it's due to poor driver optimization. New driver from AMD will surface this week though , just cant wait for another performance improvement

This post has been edited by shepard: Dec 19 2012, 05:08 AM

Okay now I'm reviving an almost dead's thread

Doing some benching today with 2pcs of HD7970 and gonna share the scores, give some poison to others to get a HD7970

HD7970 x2: 1235MHz/1635MHz at 1.287v
Res: 1920x1080
AA: Maximum Available (4x or 8x)
AF: Maximum Available( 16x)
Graphics Setting: All Maxed Out

1. Unigine Heaven 3.0


2. Far Cry 2


3. Hitman Absolution


4. 3DMark Vantage


5. 3DMark 11


6. Alien vs Predator ( check out single vs dual OC'ed performance - 100%+ )


7. Metro 2033


8. Resident Evil 5 (Variable Benchmark)


9. Devil May Cry 4


10. Crysis 2


This post has been edited by shepard: Dec 22 2012, 02:55 PM

Nice score bro,keep them coming for fun.. 39Fps at 1080p + extreme tessel +8xAA proved that HD7870 is really a powerful card. You can overclock HD7870 and have an equal performance as HD7970...but you need to overvolt it and watch the temps closely .

This post has been edited by shepard: Dec 25 2012, 09:52 PM