NVIDIA GeForce GT 750M Throttling - FIX!!

My Laptop:
Retina MacBook Pro 15" 2014
Intel Core i7-4980HQ 2.8GHz Turbo Boost up to 4.0GHz
Nvidia GeForce GT 750M 2GB GDDR5
16GB 16000 MHz DDR3L
512GB SSD
Yosemite/Windows 8.1 Bootcamp

Many people including myself have issues with the GT 750M throttling down to 845MHz or even lower while gaming. Some may not care or even notice at all, but for the picky here's how I fixed it:

1. Right-click the battery in the lower right-hand corner and select Power Options, or go to Control Panel -> Power Options.
2. Select High Performance (if you haven't already done so). Then select "Change plan settings".
3. In the "Edit Plan Settings" windows select "Change advanced power options".
4. In the "Power Options" window, expand "Processor power management" and change "Minimum processor state" to something rather low; e.g. mine is 5%.
5. Then change "Maximum processor state" to something closer to 70%; e.g. mine is 60% but I have a very powerful processor.

Basically the issue is the processor is pulling to much juice from the battery and the gpu suffers. By limiting the power consumption of cpu, there is more power available for the gpu. This will also allow for more stable OC's on the gpu. Scouring the internet, I found no help for this problem, so when I found this solution I decided to put it on the internet. Hope this has helped! Comment with questions, concerns, corrections, etc.

 

I actually keep my 4702HQ at 99% max state. I haven't noticed at all, didn't seem to affect frame rate in any of my games. Did seem to keep temps down a tad though. Stops it from trying to turbo boost is all it's really doing.

 

yeah me too .I actually found that only one game benefited from turbo boost and thats GTA 4 but if i remember correct that game was bad in using more cores and thats way it preffers higher frequency

 

That trick been out for years and its a very helpful trick. Its throttling because its overheating from Turboboost. Turboboost = overclocking which mean more heat. Turboboost is useless when playing games on a quad processor since its usually its the GPU that is the bottleneck when playing games. Each time i play games with turboboost on, the temps would reaches over 90C with my HP ENVY 17 j029nr, since i did this trick my temps are usually in the 70c sometimes 80c when playing any games. If ever i need turboboost i would just change my processor state back to 100% in just a few seconds.

 

This is mostly for those who see clock rates dropping when the GPU is under load. I found that my CPU was taking up too many resources and putting out too much heat. This help me achieve more stable clocks on my GPU and could help anyone else seeing GPU throttling under load. So long as you can sacrifice the processing power that is. Most recent games don't require more than a 2.3GHz quad-core. I compare my CPU to the game's recommended specs and figure percentages that way.

***Note: I would recommend using 99% when doing anything other than gaming!

 

Good suggestion, however, I hope it's not pulling anything from the battery when plugged into AC. Perhaps it's the power supply that's underpowered and simply upgrading that to a higher Wattage one would fix the issue.

 

Could be something like MSI's "feature" to additionally draw from battery when PSU is insufficient

 

The battery is still charging under load, however very slowly. I'm guessing that means the charger is sufficient or the hardware is being dialed back some. And if you can find a battery or charger upgrade for my rMBP 15" I'd be eternally in your debt!!

 

Apple do something for gamers?!?

 

More like covering up for inadequate PSU

 

Yeah that is the root cause of the problem.. 90W PSU with this specs? You need a 120W one... As usual Crapple, selling outdated iPhones and ripping customers off (compared to Android phones, iPhones are outdated) and cheaping out on chargers/PSUs..

 

Very true and people will still buy it because its a apple product.

A 90W PSU with those specs? really? Even lesser manufacturers would give their customers the right PSU for their notebooks.

 

Did you try launching Throttlestop and disable checkbox BD-Prochot?

 

Throttlestop seemed more CPU oriented. Was unfamiliar so I left it alone. Although I do have it on my laptop, so if you can recommend some settings to try out, I'll give it a shot.

 

http://forums.anandtech.com/showthread.php?t=2333625
Looks like this guy had the same issue and went through all the steps I did to come to the same conclusion.... Apple ships their highest end MacBook Pros with insufficient PSU's! WOW! Paying almost $3k for a laptop and it doesn't even run 100%. I'm a little salty. I will be contacting Apple with my frustrations.

 

All you will get is "here, let us show you THIS year's macbook... we'll give you $1000 for your "outdated" model so you can buy this one."

 

This is the newest, latest, and greatest from apple. The only thing I didn't upgrade was the 512GB SSD to 1TB. I'll never buy another Apple anything. I thought maybe if you spent enough they could get it right. Truth is the more you upgrade the more you surpass your power capabilities.

 

Good luck. Hope you get it figured out.

 

Can you return it? I would and get something else like a Sager NP8651/8652 or 9752/9772..

 

Apple has a very strict 14 day return policy so no. I took it in to Apple and a couple weeks ago and explained to them the performance issues and all they did was run a diagnostic test on the machine and said it was fine. Thanks apple!

 

I would sell it.... Quite a few apple fans here would snap it up... Especialyl since it's a few days old, you should be able to get 90-95% of what you paid..

 

I am so very sorry that you found NBR (and me) AFTER purchasing your macbook. Otherwise I would have been able to write a 2-page essay on why macbooks suck for performance of any kind, and why Apple should stick to ULV CPUs on their machines, and why macbooks are never under any circumstances worth the price.

Also, as per your idea on the first page of limiting your CPU speed, I'll have you understand that your CPU is inherently limited to 47W, and that at stock it is MORE than possible for you to experience power (and current) limit throttling, as the CPU cannot be raised above that TDP. So if you have to limit your power far below 47W for that CPU just so your GPU can work... Apple is probably doing worse than you were imagining in the first place.

 

batterymall.co.nz cheap and I got a original Dell 150Watt PSU for 35 AU$, I hope you will find a good PSU

http://www.batterymall.co.nz/wholesale/Apple-Laptop-AC-Power-Adapter-Chargers-1018.html

regarding throttling, here a solution that worked perfect for me

SOLVED TDP and Power Limiting (Haswell) SOLVED the easy way

big Thanks to throttlestop 8.0 and a more powerful 150 Watt Dell AC Adapter (60Watt more than original, just to be safe for experiments)
1. deactivate C1E
2. activate clock Modulation 100%
3. in TPL (Turbo Power Limits)
> higher package power Limits (my i7-4710HQ Package Power Long 54Watt, Package Power Short 68Watt)
> higher PP0 Current Limit (if possible), higher PP0 Power Limit lock and clamp it (just set the Maximum rated AC (PSU) power of you AC)
> tick Intel Power Balance and set Intel CPU and Intel GPU to 31
4. undervolting CPU Core & CPU Cache Offset Voltage by xy (my i7-4710HQ rockstable -70mV)

Best regards,

Marcus Conrad

TPL by MarcusC posted Aug 8, 2015 at 4:10 AM

FIVR by MarcusC posted Aug 8, 2015 at 4:10 AM

 

I am not firm with apple but under Windows the issue can be solved with throttlestop. Maybe not on MacOS, but since 2012 apple macbooks can have a normal install of Windows with multiboot function of the mac & Windows OS (no need for VMware).

I am hoping, that throttlestop can help you as well and that you think about candy for the developer

Best regards,

Marcus Conrad

 

No, no it can't. Those CPUs WILL NOT DRAW OVER 47W. Ever. Read my mobile i7 CPU guide.

 

100% load on CPU+GPU with prime95 and Furmark. Package Power at 53.5Watt for about 10minutes until thermal throttling. If just CPU is stressed I could run 53.5Watt for hours.
However, it worked for my mashine and I am confident it can work for others too.

 

WHERE DO YOU PEOPLE WITH ODD HQ CHIPS COME FROM

Listen, count yourself VERY lucky. VERY VERY VERY lucky. I once met an Alienware user who could sustain 62W+ on his 4710HQ. That's an exception to the bunch. Almost every single other person cannot. Do me a favour and unless Throttlestop gets to a point where it can kill TDP throttling and we confirm it, do NOT tell people that HQ chips can bypass their TDP limits with Throttlestop. Because I've had users from various notebooks use Throttlestop and various BIOS settings etc to get past their TDP limits, and it has never worked, not even with the 4980HQ models.

Also, you have a very low voltage on that i7 under such load. You should count yourself lucky there as well. Even with an undervolt I'm still 0.08v higher than you at just 200MHz faster.

 

Good to know that I am lucky, I just hope, some are lucky too.
HWInfo64 v. 5.0.2 triggered some bad things for me. I am sad that I can not go back in time
After install of HWINFO64, activating the EC sensor (there was a question before... regarding do you want to use it....)
Now Notebook EC (Embedded Controller) keeps telling the Notebook just use 90Watt (original factory setting) from the AC (PSU), rest from battery.
That means now, 100% load on CPU+GPU is just possible on AC (PSU) + battery, the battery will drain until emty.

So my full power 100% load CPU+GPU potential is now kept at 1 hours, 52 minutes based on 30Watt needed from battery + 90Watt from AC (PSU).
With just AC (PSU) I have power throttling (voltmeter measures just 90Watt used from AC (PSU). I Report if I found a way to disable the EC again.

However, I am glad that the trick is still working, at least with AC (PSU) + battery.

Best regards,

Marcus Conrad