650M Preliminary Benchmarks = up to 67% faster than 555M

Does the afterburner software inform you of the temp? Which would be a good temp stopping point? Thanks

 

Msi afterburner should be able to tell you what your temps are. It can also be used to OC the card.

Sent from my GT-I9100 using Tapatalk 2

 

You can not overclock the core speed if you check with GPU-Z it will always stay at 840Mhz which is the turbo mode stock you can not exceed this even if it says 880Mhz it is throttling it to 840Mhz, only the memory clock can be changed.

 

The DDR3 version of the card comes with a factory core clock of 840 Mhz. The DDR5 version ships with 735Mhz. Is your statement pertinent to both versions of the card?

 

no the DDR5 version can turbo to 835Mhz it will never go higher no matter what you set it at at the moment Afterburner will let you set it to 880Mhz but if you bench it with furmark and watch the core speed it tries to turbo to 970Mhz which is a 90Mhz increase like from 745-835Mhz, if you set it to 880 it will try to turbo to 970Mhz.

But it will throttle it self to 835Mhz it WILL NOT go above this no matter what you set it to until nvidia allows us to turn the turbo off you wont be able to overclock anything bar the memory.

 

I see, so the card will automatically clock up to a maximum of 835 when the performance is required or is it only when a manual overclock is engaged?

 

Blair - I appreciate the update but we need more information about a statement like this. How do you know this to be true about the turbo vs oc for 6xx series cards? Does the R2 have a bios setting to disable it? What settings for the dedicated GPU are in the bios (f2)? Has this been proven out? Meaning on real game play benchmarks with FRAPS logging or is this speculation? Please don't cite because "so and so" told me as a reference. Links with benchmarks or official statement from nvidia/dell/alienware please.

Again appreciate the post, no intention of trolling, just want facts.

Thanks!

 

if i get time ill post some screen shots but you can try it for your self just clock it to max on Afterburner and stress it 100% with furmark or another program and watch the core clock with a live monitoring program, i used the one inside furmark. the core clock will not exceed 835Mhz.

I have yet to find an option to turn it off. this just means that the card kinda OC it slef a little but stops you from overclocking it.

EDIT: got some screens now

First is with not overclock take note that the core should be 835Mhz but its throttling to 700Mhz



Next is with an overclock, note should be 970Mhz now but is throttling to 835Mhz the core speed match with the boost clock on GPU-Z

POWER WAS CONNECTED SO NOT THROTTLING DUE TO BATTERY

 

Added rep Blair. Thanks so much for taking the time to do that. I think I will tell some friends and see if a custom bios flash can correct this. It may take a while but who knows. (on the good side at least you know we are getting the 660 clocks out of the card)

 

It's strange that even on stock it throttles to 700Mhz when by default it should be 745Mhz and should really boost to 835Mhz really strange.

The only think overclocking does is make it work at the boost clock 24/7.

 

Very odd. I can see what you are talking about, but my guess is that Furmark is reading incorrectly. See MSI Afterburner shows the 969 Turbo and not 835. Not a Furmark expert, but both GPU-Z and Afterburner reflect the higher frequency.


Full size - http://img138.imageshack.us/img138/8852/furmark1.jpg

 

hmm interesting. I tend to side with gpuz and afterburner as well because I have used them a lot in the past and they have always been 100% accurate. Wonder what hwinfo reads the clock speed at?

Edit: Could you try setting the "throttling speed" for a game or app and seeing what the FPS is, and then upping the clock speed and seeing if it changes?

 

well i tend to believe furmark as it monitors the speed in real time, gpuz just reads what its set at not what it is performing at and i expect Afterburner does the same.

cause 745Mhz to 970Mhz is a massive jump and i would not expect it to be stable also it only gives 1fps more stock v OC on furmark benchmark. (and thats with the memory OC too which is probably the reason for the 1fps more)

 

Well a good way to find out once and for all is to see if performance increases from overclocking the core.

The furmark screenshot with the OC gets more fps, but that's with memory overclocked as well.

 

Afterburner reads in real time. At least with my 460m it did. I think a 3dmark bench or something along those lines would show what's going on at the different speeds. Still loving what this 650m is capable of. Might have to pick pick one up to take with me on the go instead of my m17x.

Sent from my Samsung Galaxy S2 using Tapatalk 2

 

My gt650m seem to clock back down to idle 405Mhz when runnin games and stuff after a restart it goes up and then down again after a few minuets its only at 45C, this is resulting in crap FPS now only just started happening.

It happens every time i run 3dmark11 first if i don't run this it appears to not throttle back.

 

did you overclock it to high and the driver crashed?

 

no its do it on stock setting and in crysis 2 and other games now.

 

Driver problem than maybe?

 

hmm maybe was OC i dont think it liked the 135+ core clock or the memory testing now

hmm try stressing you cpu and gpu at same time wont take long till gpu throttles down

 

Still has a lot of thermal issues like the r1 then huh?

 

Well I don't get it with prime and fur mark running loading CPU and gpu 100% CPU gets to 82C and gpu 68C which I don't call high for a stress test.

Got mine at 970mhz core but memory at 1100 MHz as memory seemed to make it throttle a lot problem is if temps go much higher it throttles to 405mhz but even when the laptop cools down it doesn't clock up again till restart.

I've ran 3dmark11 3 times now on my over clock and CPU was 76C and GPU 65C and it didn't throttle whilst on 100% load for gpu.

Going to play a bit of Bf3 and cry see see if it turottles again.

What's the Max temps these gpus can handle?

 

those temps you got seem plenty cool. I would get worried if your temps get up into the 80C-90C range.

 

yea i know they are cool but it still throttled it.

 

Can anyone explain the dispute in the Furmark and GPUZ+MSIAB readings? I personally saw no difference in fps of any of my games of clock spees higher than 835. This is also the first computer I've seen that MSIAB scale works in "+0" and not the actual clock speeds. Very annoying.

 

I haven't done all of the various benchmark tests yet, but here's a screen shot of my Heaven benchmark test for my new R2. Anyone got any tweaking tips for my 2gb GT-650M GPU besides over clocking?

 

Yes, but you can always adjust the GPU power settings to max performance.

right click the battery icon in the lower right of your screen. then click power options. then click change plan settings. then click change advanced power settings. then scroll down to graphic processor and expand it. then change the GPU Power State to Max Performance. finally click apply and ok.

 

At another site the guy said that the clocks are 405/810 and do not change based on balanced performance or max performance. 3dmark11 showed 1214 score. I posted the link in this thread here.

http://forum.notebookreview.com/gam...t650m-ddr3-vs-gddr5-difference-tested-6.html#