GTX 970 overclock results!

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jty0yt

jty0yt

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Sep 3, 2014
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So on my GTX 970 I have upped the core my 120 MHZ observing a boost clock of 1479mhz. MY fans are around 50 percent at 100 percent usage and the temps are 52 degrees! I have only upped the voltage by 15 MV and the power limit to 105%. I love this card, give me your results below!
 
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Borge80

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Jul 14, 2014
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What's your cards reference? Got my MSI gtx 970 to 1556MHZ +225 core +550 mem @~mid 50's c Scored 1636 in heaven 4.0 @ 65.0 fps 1080p :) lovin it. Absolutely amazing card for the price and I can't wait to sli them in the future.


 
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mosti

mosti

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May 26, 2013
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Galax EOC in sli.
+200 core
+450mem
Still have room to up the voltage on the cards but top card is running a lot hotter then the bottom card (sucking all the hot air up) so I've left them as is.
 
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Borge80

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Run a benchmark like heaven 4.0 for a while.

It will crash or you will see artifacts if the OC is too high. Once you see no artifacts I would bring core and mem down a bit to stabilize it. I see no stability difference with voltage adjustment.

Some games are more demanding than benchmarks. I had to adjust down to +220 core +525 mem, seems to be ok now.
 
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LittleKat

LittleKat

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Apr 7, 2014
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What's yours + voltage?
I'm currently running @ 1529mhz: +175 core, + 300 mem, 110% power, kboost on but not adding any extra voltage.
Its quite hot @ 68 C under 99% load
 
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Guest

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How's this for a first ever GPU overclock?:

s4ls8jW.png


Ran through Furmark, Heaven and Valley with seemingly no crashes or artifacts. Still downloading Crysis 3 for a real-world test.
I neglected to save the last Heaven result, but I believe it came out as 59.8fps.

Observed GPU boost clock was slightly higher, sitting at around 1447.
In Furmark, through multiple runs, I've never seen it go higher than 71c. 68-69 in the others; and it's pretty darn hot in here (I've taken off all my clothes.... ahuehuehue).

As a question though, do you think I should dial back the memory a little bit?
I'm a little bit concerned as to how it lacks any kind of heatsink and also how it's being serviced by only one phase.



I've got to say... this card man. It takes anything. I can't tell you how satisfying it is to hear a little 'click' about 20 seconds after finishing one of these tests as the fans turn off.
 
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Borge80

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Jul 14, 2014
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It's at +50mV but at full load it will run at 1250mV whether it's at +5mV or +87mV which is strange. 0mV increase will run at 1225mV which is such a small amount that it doesn't make a difference either way. Voltage increase on the MSI is iffy, but it's not really even needed. Overvoltage increases my current clock speed from 1549mhz to 1561mhz.

Don't leave Kboost on..It just runs at stock boost speed regardless of load.
 
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Scott Moondragon

Scott Moondragon

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Jun 15, 2014
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EVGA GTX 970 SC ACX 2.0

Right now I'm at 1512 MHz on stock voltage (+120). Temps get up to 72 C in FurMark, but my fan profile is set to max out at 50% and it runs quiet, so I'm very comfortable with that. This thing boosted to 1392 MHz right out of the box, which is just bananas. I haven't bothered OC'ing the memory yet.

I read a lot of negative feedback on various forums about how awful the EVGA versions are, but I'm experiencing zero coil whine, and as long as you keep a conservative fan profile, it's crazy quiet. And you can overclock the nuts off it.

FWIW, I ran Heaven 4.0 and scored a 1977 (78.5 FPS) using the default "Extreme" 1600 x 900 setting (not 1920 x 1080; I like to OC using a window and burn-in at 1080).

 
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Borge80

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Jul 14, 2014
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Found something that's pretty strange. My last clock MSI 970 clock @ 1556MHZ (+225 core, +550mem, 1225mv) was crashing some games so I took it back into heaven and found a few artifacts I didn't find last time, due to the core.

Now I reduced the core clock to +215, but raised the memory to +600 and increased the voltage to the hardware lock of 1250mV (I just did +87mV) which gave me an actual clock of 1556 MHZ again, and 1543MHZ without voltage and resulted in no artifacts, and appears stable so far in games. I even benchmarked heaven 4.0 and stressed Alien Isolation, Watch dogs, and the internet at the same time and it didn't crash or produce artifacts.

So I compensated the performance loss from the core by upping the mem to its absolute performance max (650 is unstable), but increased the voltage to gain the highest clock possible which ended up being the SAME freq clock speed as the previous unstable clock with different settings...wtf? It looks like increasing the voltage is actually useful and does increase performance past the max stable core clock.

Final max stable clock: Will be testing this for a bit and will update.
1556MHZ @ 51-54C full load
+110% Power target
+215 core - maxed out before artifacts start occuring
+600mem - will be using this for a while unless unstable
+87mV - results in slight clock increase so will leave this on
104-106% - TDP highest I've seen so far on my card.


I hear the msi 970's crappy 110% power limit prevents this card from reaching clocks of 1.6GHZ, sourced here http://www.hardocp.com/article/2014/09/29/msi_geforce_gtx_970_gaming_4g_video_card_review/8.

1540-1545 seems like the max stable clock I've seen so far, although I think I might've just won the gold cup. I'm curious to know if anyone has higher clocks on the MSI version.

I will also add that my card msi gaming 970 came with a clock of 1328mhz, and not 1366.
 
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Ellis_D

Ellis_D

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Jul 20, 2014
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I'm a little disappointed with my ACX2.0 SC. It only does +100mhz (1,417) stable on the core and anything above that produces artifacts and crashes. It did seem like I was able to run +125mhz on Heaven with a score of 1589 but that same config was crashing with Furmark. I can max out my memory at 600mhz and using that doesn't seem to affect my ability to overclock the core.

Still, the 970 is a beast of a card at stock and and since I can get "FTW" performance from my "SC" card, I'll take the $30 I saved as a victory.
 
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Guest

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Contrary to my previous post in this thread a while ago, I also ran into some issues with clock speeds over around 1430MHz (Boost). I thought it was stable at the time due to it passing all of the heavy benches with ease, even a campaign run of Crysis 3, guess things change.

I've dropped things down to a more modest 1200 non-boost (Results in about 1340 boost) on the core and 7400MHz effective on the memory now that they're in SLI.

I guess we're all in the same boat.
Not that it's a bad boat to be in.
 
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Borge80

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You should test memory at +500 and +600 if there's not much of a difference I would keep it at +500. I had it on +600 for a while too but I realized I was getting like 1-2 fps more but it was literally right below artifacts.
 
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Ellis_D

Ellis_D

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I've only tested the memory at +600 vs Stock settings and got a 5% performance increase in Heaven Benchmark and for reference, +125 core and +600 memory got me a 12% increase over stock settings. All in all, I'm not planning on running an overclock 24/7 and mostly just wanted to push my card to its limit.
 
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Niccko

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Mar 16, 2014
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BRUH? I have the EVGA GTX 970 which was stocked @ 1379mhz (scored 1656 with that), I upped it by +71 to 1450mhz and I scored 1710 in heaven 4.0 @ 67.9 fps 1080p?
Either my card is awesome or your's is [strike]shit[/strike];p or both! did you test with everything maxed fullscreen and 8x AA or 4x? I ran at 4x as recommended.

BTW: haven't even touched the mem or voltage
 
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Ellis_D

Ellis_D

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He clearly ran with 8xAA and his score of 1636 is pretty good and right where it should be.
 
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Borge80

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Yes lol ultra, extreme, and 8xAA 1080p. Test again :p

@Ellis_D: You could probably get a higher OC with +500 mem and higher core.
 
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Ellis_D

Ellis_D

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I wish I could. I can't even do a better core OC with memory at stock. My card's a pretty poor overclocker.

 
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Borge80

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What frequency is it running at?
 
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