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Gigabyte R9 270 overclocking ability

post #1 of 13
Thread Starter 
Hello. Is there anyone who owns this graphics card who can provide information on its overclockablity? Thank you very much. thumb.gif
post #2 of 13
I was wondering the same thing. I had decided that a 270 was a nice compromise between price and performance, so I picked up the Gigabyte R9 270 OC version. It was the same price as every other regular R9 270.

Unlike pretty much all other 270 cards, the Gigabyte OC version requires 2 6-pin power connectors instead of one, this intrigued me because from what I have read the single power-connector would be a limiting factor in overclocking.

Out of the box I slid the overdrive sliders to the max, and it had no issues. I unlocked further overclocking in Afterburner, and so far pushed the core clock to 1120, and memory to 1550, only played one round of battlefield though, So I need to test it a bit more, and then push further until I blow this thing up, and feel like an ass.

Voltage adjustment appears not to be available, but I don't think that's a big deal.This card has already exceeded my expectations. It seems like it still has plenty more potential.

I'll probably tweak it some more tonight, and let you know how far I get.
post #3 of 13
Thread Starter 
Thats great, I just got mine yesterday. I havent tried to OC it yet, I will wait for your results. Anyhow, isnt it virtually impossible to "blow up" GPUs these days, with all the safe features, especially if you dont change the voltage? Sorry for my english. biggrin.gif
post #4 of 13
So, after some benchmarking with unigine heaven, I have settled on core speed of 1155MHz, and memory set at 1499MHz. I also set the power limit to the max. Voltage is still not adjustable. It was able to run a little higher, frames hung up a few times, and I think slight instability was actually causing it to score less.

With the somewhat arbitrary settings(though the same for each test), I was able to increase my FPS from 58.2 at out of the box settings, up to 67.8, give or take a few tenths of a frame. And this card starts out a little faster than the standard 270 to begin with.

I'm playing Battlefield 4, 1680x1050(max on my monitor) Ultra setting, and getting an average of 55-65 fps depending on the map. When I bought it I was hoping to play at high settings, so I'm pretty happy.

Pretty fricking good for $179us, and it came with a $60 game that I was going to buy anyway.

A few notes, All of the tests were run with the fan at 100% and the side cover off my computer, because I have the worlds cheapest(and sharpest) case with no fans. Also its near a drafty door, so ambient temp was probably in the 60's F. Core temp never got past 55C. Using higher clock speeds while playing BF4 caused crashes, 1155/1499, played stable for several rounds, but I have not given it a rigorous day of gaming yet.

As you mentioned It is pretty unlikely to do damage by overclocking, usually weird stuff starts happening, and you just back off a bit, sometimes it will crash the system though, so make sure you backup anything on your HD that you cannot afford to loose.

Anyway, I am getting an extra 15% out of this card past the factory OC, and that is better than a reference 270X.
you could probably get a solid 60 FPS at lower resolutions, or by lowering just a few settings in games, keeping most at ultra.
post #5 of 13
Also, you English is pretty good; better than most Americans. That is amusing, you are not a native English speaker.

Another note, Gigabyte OC Guru II would not open on my computer, so I just used MSI afterburner. You also have to alter the config file to unlock higher clock speeds.
post #6 of 13
Thread Starter 
Hi, sorry for late resposne.
I managed to get 1100/1400(stock/) on my Gigabyte R9 270.
Temps are 60 degree max. I tried 1125 but i was getting black screen in heavily modded Skyrim.
Also tried to push memory up higher but Unigine Heaven showed lower score and fps with just 1430 bump to memory so I left it alone.
post #7 of 13
I'm thinking to buy this card .. how noisy is the card ? and what about the build quality ?
post #8 of 13
I can't overclock over 1050 using MSI Afterburner. How to do so?
post #9 of 13
I think Overclocking ability is probably more hit and miss between cards because this is a less expensive model.

The build quality seems very good, nice cooler and fans. I cannot really comment on noise right now since i have not added fans to my case yet, and I'm still running with the side cover off, however while playing BF4 The fans never run very high, around 30 percent, and I cannot hear the computer, over the game anyway. During normal non-gaming use, my PSU fan is louder then the video card.

There is a configuration file you have to edit in afterburner to unlock higher frequencies.
I am not home now so I cannot tell you exactly, but google "unlock Msi afterburner" and you should find the answer.
post #10 of 13
Thanks, I didn't know about this unlocking thing.

A weird thing though is that at no load the fan runs at %25, 1670 RPM. When gaming it goes up to about %65, 2470 RPM. However %65 should be about 4340 RPM.
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