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Overclocking Affect on Performance

post #1 of 6
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What is the general effect of increasing a GPU clock speed or memory speed? For example, how much performance (FPS) would a 10mhz or 100mhz OC add? Like roughly would increasing the clock speed by 10mhz increase fps by 2 and increasing the memory speed by 20mhz increase fps by 1?
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post #2 of 6
Quote:
Originally Posted by jthurmond3 View Post

What is the general effect of increasing a GPU clock speed or memory speed? For example, how much performance (FPS) would a 10mhz or 100mhz OC add? Like roughly would increasing the clock speed by 10mhz increase fps by 2 and increasing the memory speed by 20mhz increase fps by 1?

 

This is one of those questions where you can't really give a good answer other than "it depends."

10Mhz wouldn't make much noticeable difference. In Furmark, I gain 5-6 FPS by overclocking my GPU/memory to max. (I think it was about +150 core and +600 memory)

post #3 of 6
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Quote:
Originally Posted by Powermonkey500 View Post

This is one of those questions where you can't really give a good answer other than "it depends."


10Mhz wouldn't make much noticeable difference. In Furmark, I gain 5-6 FPS by overclocking my GPU/memory to max. (I think it was about +150 core and +600 memory)

Hmm, I am just trying to figure out why people would spend more money on a higher core/memory clocked card or OC and increase temps/annoying fan speed noise if there is not a noticeable difference. What is giving you the biggest boost in your situation: the 150 core or 600 memory?
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post #4 of 6
on GPU's the core speed matters the most...though for that final synthetic-benchmark push, memory can help a bit...its one of those things enthusiasts like...why would you ever buy a 350HP car that can go well over 75MPH and then add turbo/superchargers like so many people do? even modify/flash their ECU for more power? I use a lot of car comparisons lol

It's because you can, to learn new things, to network with others of like mind, for a hobby, for respect and challenges

overall, TBH, its a lot about synthetic benchmarks for a lot of people..you might only see 1-5 fps increase in crysis3 but your 3dMark13 score could go up a decent amount

edit: some people also do video editing, rendering, transcoding..etc...which are time-intensive tasks, so if you can OC your CPU/GPU and lower the time it takes to unzip large files, or transcode video by say 10% for free, why not? time is money
Edited by flash2021 - 4/5/13 at 7:58am
post #5 of 6
In some situations, performance gain is magnificent. In others, the gain is minuscule.
You will get the best out of your card by overclocking the weakest link, although overclocking the core Is the most common way to get "more" performance, because it works.
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post #6 of 6
Quote:
Originally Posted by jthurmond3 View Post


Hmm, I am just trying to figure out why people would spend more money on a higher core/memory clocked card or OC and increase temps/annoying fan speed noise if there is not a noticeable difference. What is giving you the biggest boost in your situation: the 150 core or 600 memory?

 

I watercooled for silence, mostly. Overclocking was a consideration too, but not my main priority. It's worth the work though, it's free performance. Honestly I don't know which gave more of a boost, I haven't done any benchmarks yet.

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