PDA

View Full Version : Amazing Heaven Benchmark results on G750JZ - Extreme overclocking!



navis995
02-26-2015, 12:56 AM
I think I pretty much reached the best possible OC there is with 880M on G750JZ.

The results:
46907

I don't think I've seen better results.

beatc
02-26-2015, 03:01 AM
Nice results you got there. This proves that 880m still rocks like a beast.

navis995
02-26-2015, 11:59 AM
Definitely. I get better results that 970M on any game and overall around 10 FPS improvement over stock clocks, which is IMO freaking nice.

hmscott
02-26-2015, 09:10 PM
Nice run navis995!!

The G750JH hangs in there with a 780m OC at 932/6250, +135 / +625 :)

46930

What do the 970m/980m's get?

mihaimoga
02-27-2015, 06:30 PM
@navis995 hey, can u tell us how u manage to overclock it so good? what driver do u use, what is the program that u use to overclock it, what are the exact setiings, can this settings be used in daily gaming like 3-4 hours of gaming? when people post threads like this, more and detailed informations are very welcomed. ty!

navis995
02-27-2015, 09:12 PM
Of course. This graphics card is capable of high overclocking such as this, so it's a shame leaving it behind in stock clocks. For overclocking the GPU I have used Asus Gpu Tweak (I think the latest version).

There I increased the voltage to 1050mV (It's still within normal range as default maximum voltage is 1137mV) otherwise it would be using around 1000mV which was unstable with my OC.

Then I increased memory clock to 6000 and GPU clock to 1093 (+500Mhz and +100MHz).

Then I also use GpuTweak version 1.0.9 (It is not the same as the software before), which enables me to use the fans to the maximum (Both GPU and CPU) ergo giving me nice low temperatures.

During the tests I've seen that the temperature differs from game to game of course but from what I've tested is that the maximum it got was around 85C, which is the maximum I have been getting before the overclock as well. Besides 85C is really low temperature taking in the fact it's a mobile GPU and what not.

I've used the latest drivers as I don't believe NVIDIA is plotting a conspiracy against us users of the 880M and besides most newer games don't work without latest drivers anyway.

MUST READ THIS PART

As you probably know it differs from GPU to GPU in order to find the "sweet" spot so be careful with what you're doing as you don't want to lower your GPU life span.

When you apply the clocks run a FurMark benchmark. If that passes then run the test for 15 minutes. If that passes as well and the temperatures are in order then you're good to go.

If you have any more questions feel free to ask me.

Enjoy the OC ;)!

SDEagle
03-04-2015, 07:07 AM
What do the 970m/980m's get?

Before OC

47121

After OC (+75Mhz core clock & +250Mhz mem; Note that I still had room of +60 more core clock, but didn't wanna try anything crazy at this time :)). Also, the temperatures were around 66'C, and the fps on Far Cry 4 (Ultra settings) got bumped up from ~50 to ~56, which is not bad at all.

47122

hmscott
03-04-2015, 12:56 PM
Before OC

After OC (+75Mhz core clock & +250Mhz mem; Note that I still had room of +60 more core clock, but didn't wanna try anything crazy at this time :)). Also, the temperatures were around 66'C, and the fps on Far Cry 4 (Ultra settings) got bumped up from ~50 to ~56, which is not bad at all.



SDEagle, very nice :)

You know the +135 gpu clock OC limit has been a standard for a long time, you should try it. Most/all previous Nvidia GTXxxM cards are stable at +135, then only "tuning" for performance improvement that we do is tweak up the memory clock until it becomes unstable, then back off 100-250 to get a stable memory OC

You won't hurt it running / testing, watch the temp and if you crash, reboot and back off the memory frequency a little and try again. Just make sure you aren't doing important work while OC tuning :)

Thanks for posting the results !

SDEagle
03-05-2015, 07:08 AM
tweak up the memory clock until it becomes unstable, then back off 100-250 to get a stable memory OC

Thanks for the support, hmscott!

Based on your experience, what memory clock would you recommend to go up to, for the core-clock increase of +135Mhz, before it's unstable? Any idea?

Thanks again!

TulnukaWara
03-05-2015, 08:29 AM
Hi, i got around 750 points with my 870m original clocks. Do you know how much oc could i use with this card?. I dont know what numbers to use there.

Thanks!

navis995
03-05-2015, 10:40 AM
Try and do as I did. +100 on core and +500 on memory.

hmscott
03-05-2015, 11:29 AM
Thanks for the support, hmscott!
Based on your experience, what memory clock would you recommend to go up to, for the core-clock increase of +135Mhz, before it's unstable? Any idea?
Thanks again!


Hi, i got around 750 points with my 870m original clocks. Do you know how much oc could i use with this card?. I dont know what numbers to use there.
Thanks!


SDEagle/TulnukaWara, in my experience with OC'ing Nvidia, but not having experience directly with the 970m/870m, I would google for others experience - maybe check youtube for videos of 970m OC'ing to get an idea of what others are seeing first.

If no references were available, given previous experience, I would start by OC'ing 1 setting first, the GPU frequency, and try +135 as that is the normal limit set in the vBIOS for OC'ing the GPU clock.

If the tools for OC'ing allow +135, then that is a good sign :)

When the GPU frequency setting is stable then I would work on the memory frequency. Given previous experience, last on the G750JH/780m, and my OC settings of 932/6250 - +135 / +625, I would start at +400 for memory and see if that is stable.

Getting a stable memory frequency takes a little time the first time, if you have no outside references. But it is a simple method. Try changes of +100 starting from stock, and keep going up by +100 until unstable - Nvidia driver crashes or display gets squirrely with horizontal lines or sparkles. Then back off by 1/2 or 50mhz and try again, if stable go up by 1/2 or 25mhz and see if that is stable, etc.

It's not hard, you just need to try increasing/decreasing till stable at idle, then run a stress test like Furmark or Unigine Heaven and make sure it stays stable - then back off or increase another increment.

And, don't forget to post your results, original stock frequencies then + values and final frequencies. I looked for some here, but didn't really find any to recommend. I did find this early post for MSI, and the number should be usable as a base.

For the 970m read the paragraph between the table and the result image. +135 GPU clock and 6000mhz memory - another says 5800 memory, so those are good targets :)
http://forums.hardwarezone.com.sg/89687022-post15.html

Good luck, and don't forget to post your OC numbers and benchmark results here, and here for the 970m/980m

Got your new G751JY G751JT G751JM ? Post your review, temps, benchmark results!
http://rog.asus.com/forum/showthread.php?52467-Got-your-new-G751JY-G751JT-G751JM-Post-your-review-temps-benchmark-results!&p=442678&viewfull=1#post442678

TulnukaWara, I didn't see any good 870m numbers here as the Asus GPU Tweak for Laptops doesn't support direct +frequency settings, only the non-Optimus Asus GPU Tweak for Graphics cards works with the non-Optimus G751JT/JY and G750JW/JX/JH

But for the 870m you can use MSI Afterburner and give +frequency settings there. I would do as above without reference of others, +135 GPU first, then scale up the memory frequency by +100 increments until unstable, and then backoff by 50 and up by 25 at a time - be patient, it takes time.

And, please post your results here :)

Here is where to get the Asus Tweak tools, and MSI Afterburner:

Asus GPU Tweak for Laptops vs Asus GPU Tweak for Graphics Cards
https://rog.asus.com/forum/showthread.php?45644-Asus-GPU-Tweak-for-Laptops-vs-Asus-GPU-Tweak-for-Graphics-Cards

MSI Afterburner, old and new (Some like the old interface better)

MSI Afterburner 4.0.1 - new
http://event.msi.com/vga/afterburner/download.htm

MSI Afterburner 3.0.1 - old
http://downloads.tomsguide.com/Msi-afterburner,0301-47353.html

navis995
04-30-2018, 11:13 AM
Im reviving this thread.

With the latest mod I did to my laptop and further added cooling solution I managed to improve OC and get even greater score with lower temperatures as well.
73562