Overclocking 7660G and 7670M, and 6620G

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chad2625

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Jul 28, 2012
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Im posting this I hope in the right thread, its overclocking a laptop so I guess its a coin flip. Also this information might be a repost but I searched for a guide or how to on stuff like this and never found it.


Changing Clock Frequencies and Voltages at your own risk! Doing so will most likely void your warranty. Replacement parts for laptops are insanely expensive. You run the risk of ruining your laptop by overclocking and over volting your laptop.
This is a multi-part guide thing, one is how to overclock new AMD Trinity based GPU’s, with dedicated cards in dual graphic setups. Part two is to overclock llano based GPU’s. Then I will cover how to maximize performance of these two processors, and I hint at overclocking Llano based CPU’s but I’m sure there are guides on how to do this. I overclocked the Hell out of the 7670M using MSI after Burner and The 7660G. I will explain how to overclock Llano Based Video cards like the 6620G. Then I will explain how to optimize the performance of the CPU.
Here is what I did for new Trinity Setup
1) Install Catalyst 12.9 Beta Drivers. (this works because trinity drivers as far as I can tell are vendor specific unless you download the complete package. Google search catalyst 12.9 beta drivers as the AutoDetect through Amd’s web site won’t work!)
2) Install AMD overDrive
3) Install AMD PS Check newest version 3.4.1.277
4) Install MSI Afterburner
5) Go to C:\Program Files (x86)\MSI Afterburner\ then open MSIafterburner.cfg in note pad then look for UnofficialOverclockingMode = 0 under [ATIADLHAL]. Change the 0 to 1, save and close.
6) Open MSI Afterburner and now you should be able to overclock the discrete video card
7) Now open AMD Overdrive, go to the clock and voltage tabs. You will now notice there is a GPU clock tab and it allows you to change the IGP (in my case the 7660G). I don’t think that it was anything we changed, it’s now available to overclock
8) I noticed that I get more better video performance when I crank the NBVID up until it turns red for me 1.114) Apply and ok.
9) The last step is to use AMD PS Check to set the voltage and remove all but the P0 setting. To do this go to file->settings when the windows opens go to the CPU settings tab and select all. Next go to the PState Configuration.
10) Uncheck Enable for all but PState P0, PState Pb1 and PState Pb0.
11) Change CPUVid to one or two settings at a time. Or you can cheat and look at what AMD over Drive and see what CPUvoltage goes to until it turns red, and use that setting. The first method is preferred, I’m sure that you could go higher than what Overdrive says is say, but I wouldn't, I also did not notice any performance increase in doing so.
12) You can make different profiles by saving, your Pstate Configuration, so you can change between high performance and regular modes easily.
As far as I can tell it, is impossible to overclock the Trinity CPU but increasing the CPU voltage increases CPU performance, and increasing the NB VID increases video performance. Do not try to use PS Check to do this as it makes my laptop unstable. If you feel bold and find different results please post them
As far as overclocking the IGP through AMD Over drive you might be able to overclock it stably very high (1.3 GHZ in my case), but I only see a performance increase from 685 MHZ to 720 MHZ.
Over clocking the 7670M though MSI Afterburner, you should be able to overclock the Processor and Memory I was able to over Clock mine from 600 MHZ to 780 MHZ (max). But the Memory I went from 900 MHZ to 1075 MHZ, whereas max is 1175 MHZ, still a good increase.
Llano
1) Install Catalyst 12.9 Beta Drivers
2) Install MSI afterburner
3) Go to C:\Program Files (x86)\MSI Afterburner\ then open MSIafterburner.cfg in note pad then look for UnofficialOverclockingMode = 0 under [ATIADLHAL] and change the 0 to 1 save and close
4) Open MSI afterburner and now you should be able to over clock the IGP in your llano based APU. ( I personally thought this was impossible)
5) Install K10 Stat and/or AMD overdrive.


If you use K10stat you can lock your CPU into one power state, which could be the highest one. AMD overdrive is easier going to Auto clock click start and AMD over drive will find the best over clock. Please note that it will lock this in so your processor always uses this frequency (bad for battery life). K10 stat you can tell it what frequency it uses, so you can go from high to low performance modes easily.
Using afterburner I took a 6620G to 580 MHZ from 444 MHZ. I noticed that from 444 MHZ to 500 MHZ I saw a huge performance increase. Unlike Trinity I still saw a performance increase from 500 MHZ to 585 MHZ but not nearly as much as from 444 MHZ to 500 MHZ. Also note that you can’t change the memory clock as it is your system ram.
Other Thoughts
All APU’s Benefit if you are using dual channel setups meaning 2 x 4GB sticks is better than 1 x 8 GB. Also you want to get the fastest ram with the lowest latency’s your laptop will support. This is because the APU based GPU uses system ram, faster system ram, and means faster video ram.
This is not overclocking but, both Trinity and Llano based CPUs can be undervolted. From my general experience both a crap ton, in my Trinity it can go stably as low as .981 without too notable performance decreases. Using a simple program like Intel burn in test to get a simple GFLOP output from my processor. It was less powerful, but I would say you would notice it in your battery life, say for students who are most likely to own this class of laptop. Most likely a tradeoff students would find interesting as you can go from super low voltages and high voltage setups easily.
Final thoughts
If you’re going to does this do it at your own risk. Also consider that overclocking generates more heat, normally this is not an issue in desktops, as you can upgrade your cooling (Which you can’t do in laptops).Llano and Trinity have thermal cutoffs of 100 C, so they will shut down your computer at 100C. I like to try to keep my full load temps below 90 C on my overclocks for safety. I always find the maximum stable clock settings and lower it by 10-20 MHZ, as a safety buffer.


Trinity, A10-4600M, Overclock 7670M,
 

Real_GM

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Sep 18, 2012
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Hi Aztec,

When you use your 1866 ram, is it stable?

You are effectively increasing the memory clock for both the CPU and the APU. That's pretty cool. Maybe I'll do that when 1866 memory is cheaper.
 

chad2625

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Depending on the computer it is stable and a cost effective performance increase. My computer will not run it at that speed, nor will it run the corsair ram. Kingston no problem, corsair horrible horrible hangs, and video problems.
 

fantasma64

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Oct 22, 2012
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Hi im new, (Sorry for my english)

I wish overlock IGP my notebook is:
A8 3500m with integrated graphics 6620g

I OC the cpu with K10stat pefect (2.4 turbo 3.0) but no overlock my igp. ..

what program that need for ocear my igp 6620g ??


cd41d8cc38c214a7f56cc3d305cc7511o.png


MY CONFIG WITH 2.3 (24/7) - 2.6 - 2.8
5c6bc17f2c405a5927979cfa431ef060o.png

HELP ME! thanks
 

chad2625

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Jul 28, 2012
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for overclocking the llano gpu you must use msi afterburner then u must edit the afterbuner.cfg file using notepad. you are looking for allow unoffical overclocking add or change the 0 to a 1, save it. open msi after burner you should be able to oc the core clock of the igp. For me i find that after burner does something wired when i open it initaly it will allow me to oc my video card to say 780 mhz if i close and reopen it i get a much higher clock speed to choose from.
 

fantasma64

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thanks will try Do my memory might fail when OC igp?

and one more question:

that CPU speed should not happen? which is the maximum 3.0? (no temperature problems)

Thanks :D
 

lonewolf331

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Jan 14, 2013
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I got a Toshiba Satellite S875D-S7239 with the A10 4600M HD 7660G 6GBs of RAM (which I will upgrade to the max 16GBs soon)and I payed $650.It plays Battlefield 3 on ultra no AA, Skyrim on ultra no AA, and Far Cry 3 on high.It will play FC3 on ultra its just slow FPS.You said this is geared towards Dual card set ups.Will this work for a single card?I'm curious because I'm going to get Crysis 3 and would like to do better than medium.I figure thats what i would be able to play it at comfortably using the Cryengine 3 SDK game as a reference.
 

htwingnut

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Thanks for all this info. I can't get above 2.7GHz though ever. I tried locking Pb0 state and my system just locks up. I can lock Pb1 state (2.7GHz) and it works just fine, although it doesn't seem to improve performance at all because the IGP still steals resources it needs. In any case, interesting to hear some machines accept 1866MHz RAM. Might have to try that. Will have to find some that aren't XMP but JEDEC 1866MHz.

I find that overclocking the IGP (7660G) does nothing as far as performance improvement. Also overvolting doesn't help much either, but I may try to undervolt just to get a cooler running CPU, although it never exceeds 70C as it is. It's too bad AMD took away all the customization we had with Llano. It would be good to get another 15-20% GPU improvement and locked 3.2GHz speed.
 

palladin9479

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Yeah I don't like how AMD kinda neutered the new APU's ultra-customization.

Historically IGP's were more limited by memory bandwidth then anything else. We're talking 128-bit 1.6Ghz DDR as a standard with occasional systems working at 1866. That's not much bandwidth when compared to the 256-bit GDDR5 interfaces we see with modern dGPU's.

Anyhow welcome to THG's, your guide on notebookreviews helped me immensely in overclocking / undervolting my DV6 3550MX. Too bad that my model had the RSA locked BIOS and prevented me from using DDR3-1600 memory.
 

olorinh

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Feb 5, 2013
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Hi guys,

Sorry to hijack this thread, got a very quick question about temperature of the 7660G. I have a notebook with dual GPUs, the 7660G and a 7670M, but I think something is very wrong with the 7660G.

In GPU-Z the reported idle temperature of the 7660G is 102°C and under load this rises up to 118°C
In comparison, the 7670M has never risen above 69°C.

Are these high temperatures of the 7660G normal and safe? Note this is with stock clock and configurations, nothing has been overclocked or overvolted, completely untouched.

Thanks.
 

nikoli707

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Jan 4, 2012
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its reporting the wrong temps, lol, 118c is 244f, it would literally be boiling and melting stuff if it was "really" that hot. anything above 200f is extremely bad for computer components and not to mention potentially could hurt someone.
 

Oswald_91

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Feb 19, 2013
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Hi chad2625,

Thanks for the guide. I'm trying to overclock a 6620G GPU (within an A8-3500M) only. I can get MSI Afterburner to take the slider all the way to 580Mhz but according to GPU-Z, the sensor doesn't go any higher than 471Mhz (pretty much stock frequency). Also, any benchmarks show no improvement as well.

I'm using a Lenovo E525 and Catalyst 13.1. Do you think something is locked down or should roll back to the Catalyst 12.9 beta?

 

nikoli707

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Jan 4, 2012
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To be honest i would just leave it the same unless you have superior cooling, i had my 7660g running at 1100mhz up from the 650mhz and forced 2.7ghz on the a10 and i only got like a 10% performance increase on benchies and a whole lot more heat output.

So i leave mine at stock. But to be fair, i undervolted my a10 a lil bit, threw in an ssd and got some cheap 1.35v cas 9 8gb 1600mhz ram and i can play skyrim on high with a few mods for about 2.5 hours straight, 6+ hours normal internet usage.

Seat of my pants, outputting 720p to an hdtv, easily faster and better quality than a 360/ps3, at least in playing skyrim.
 

Oswald_91

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Feb 19, 2013
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Hi nikoli707,

Thanks for the reply. I didn't think you could overclock the iGPUs in Llano processors until I saw this thread. I've just bought a few games and hoped I could boost the framerate a little, but it sounds like it might not be worth the bother. It's a laptop and I can't improve much else. Faster memory would be good for the integrated graphics but the mobile Llano don't support it unfortunately. Maybe I should've gone for a desktop! Too late now though!

Chad said he got quite a boost when he overclocked his processor. Anyway, I hope he posts back to elaborate!
 

Rishiisboas

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Feb 24, 2013
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I am having the same problem but I have catalyst 12.9 beta drivers and msi afterburner can take it up to 780 MHz but my gpu only goes up to 471 MHz.The stock is 440 MHz so that is not a noticeable increase.I am using HP DV6 6b47dx with a8 3510mx with hd 6620g.
 

Oswald_91

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Feb 19, 2013
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At least I'm not alone! I wonder how Chad did it? There's another guy on another thread that also managed it I think.
 

kebbz

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Jul 27, 2012
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Hey guys. Im unable to overclock my 6620g. I have an HP 1204ax with dual graphics. 6640G2 (6620g + 6470m)

When i open msi afterburner, it shows 3 gpu, all 6400m listed. No 6620g :( help?
 

chad2625

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Jul 28, 2012
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I am unsure that you can overclock the llano based APU in a dual set up, if you can it might be under AOD (AMD over Drive). My savy as far as Llano is in single setups I have a Trinty based APU A10 and the 7660G can be over clocked via overdrive only I have no access via afterburner. I was actually puzzled by thee 6620G ability to OC via afterburner I just tried it on a friends laptop and it worked. My guess is that afterburner is designed not to look at the APU when there is another video card so some one dosent accidently blow out the APU trying to OC their video card. With that said though it is possible to add GPU's to afterburner but that is way beyond my knowledge, as you need to know the code names, and hex (i think) names of cards.

As far as trinity goes there has been mixed results O.C both APU and GPU At first I got good results but no one including my self was able to replicate them. It's probably got to do with the north bridge, and not being able to handle that much data, or a bottle neck in the memory area.
 

chad2625

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Hey sorry it took so long to reply... MSI Afterburner is odd, I did not mention on thing I did and it seems to make a diffrence in situations like these.

Open Regedit find key "enableulps" change the 1 to a 0 try that.

Also I find that opening and then closing Afterburner makes all the diffrence some time