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GPU Clock Speeds in Games (High vs Low)

post #1 of 13
Thread Starter 
Hey Guys!

I am new to the community and built my first computer about a month ago (Beginning of January) and immediately fell in love with this hobby! I've read a few guides and overclocked my GTX 670 and been playing a few games successfully..

Here's my question, why do some games max out your GPU's clock and others barely hit it? For example:

Crysis 2 basically runs at the top end of the clock.. usually the framerate averages about 80 or so? Sometimes hitting 100fps.

Bought Aliens Colonial and its running at around 700Mhz at 62FPS.. Doesn't increase or decrease (stays at that range with everything maxed out)

Is this because the game requires less GPU power then lets say games like Crysis 2 and BF3?

Appreciate all the responses and help!
post #2 of 13
What is it you mean by top end? If you mean highest speed then some games just stress your GPU more and the change in clock is your you scaling its speed it its needs. This is to reduce power usage and strain on the GPU. Different games run different engines that use GPU power differently so that causes fluctuations but the big factor is the quality of the game. Crysis and BF are known for their hardcore engines I don't know about the other game but can't imagine it being too stressful as it isn't considered as a benchmark that I have seen.
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Ol' No Name
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post #3 of 13
Yes Crysis 2 and BF3, is very demanding games...it will max out your GPU into 98-99%....
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post #4 of 13
Thread Starter 
Ya, basically what I meant was that it stresses the GPU, the clock actually increases to the 1200Mhz range when playing Crysis 2.

Playing Aliens Colonial Marines, its steady at around 780Mhz.. Like you mentioned, I don't think the game is stressing the GPU
post #5 of 13
is vsync turned on in Aliens?
post #6 of 13
Good point, also do you have frame rate locks on?
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Ol' No Name
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post #7 of 13
bottleneck. what is your system specs?

games requires gpu power, cpu power, and other things. if your cpu is too slow, then the gpu will wait for it, means that the gpu will have less usage while the cpu is at 100%, they don't help each other out.

requirements varies on each game. crysis 2 for example requires lots of gpu power than cpu power,
Edited by ghostrider85 - 2/13/13 at 6:28pm
post #8 of 13
my point is, if frame lock or vsync is on, your GPU may indeed be throttling down because it doesnt need that much power to get 62 FPS, where as if it was not locked, it would be doing its best to get as many frames as possible, regardless of what your monitor can physicaly display (which is why crysis would get 100+ frames)
post #9 of 13
Thread Starter 
I turned off vsycn in the game and in Nvidia settings... Here are my system specs:

  • ASRock Z77 Pro3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
  • Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core
  • CORSAIR Vengeance 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600
  • EVGA GeForce GTX 670 FTW 2GB 256-bit GDDR5
  • CORSAIR CX500M 500W ATX12V v2.3 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified
  • COOLER MASTER Hyper 212 EVO

Edited:

Been doing some research and it seems like Gearbox capped the game at that frame rate...:
Quote:
A framerate cap is in full effect, but thankfully Gearbox had the good sense to lock it at 62fps rather than 30. Unless you've got a fairly fancy setup and excellent vision, you probably won't notice it. Running on my Core i7 CPU and GeForce GTX 560 TI GPU, FRAPS reported my framerate at a near-constant 62, regardless of settings. It ran smoothly for me overall, and I never experienced stuttering or crashes.

Source: http://pc.gamespy.com/pc/sega-alien-shooter/1227386p1.html

Damn.. pretty disappointing to be honest... Playing through it right now and the AI is HORRIBLE!! I am playing on the hardest and it feels like Medium at the most..

Skip this title guys..
Edited by kjoz - 2/13/13 at 7:42pm
post #10 of 13
Quote:
Originally Posted by kjoz View Post

I turned off vsycn in the game and in Nvidia settings... Here are my system specs:

  • ASRock Z77 Pro3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s USB 3.0 ATX Intel Motherboard
  • Intel Core i5-3570K Ivy Bridge 3.4GHz (3.8GHz Turbo) LGA 1155 77W Quad-Core
  • CORSAIR Vengeance 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600
  • EVGA GeForce GTX 670 FTW 2GB 256-bit GDDR5
  • CORSAIR CX500M 500W ATX12V v2.3 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified
  • COOLER MASTER Hyper 212 EVO

Edited:

Been doing some research and it seems like Gearbox capped the game at that frame rate...:
Source: http://pc.gamespy.com/pc/sega-alien-shooter/1227386p1.html

Damn.. pretty disappointing to be honest... Playing through it right now and the AI is HORRIBLE!! I am playing on the hardest and it feels like Medium at the most..

Skip this title guys..

can you find a way to unlock the frames to confirm if it was the cause of your clockspeed issue?
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