GPU OC, not affecting games?

Hardware Hub GPU
1

I am not a complete noob to overclocking, I have a very nice OC on my 4930k, however I am a noob at GPU specific overclocking.

I've been doing it for the past few hours, and am a little confused by the results.

I have a Geforce GTX 770, the Gigabyte Windforce 2 GB version.

I've steadily overclocked it, and over that time I have been stress testing with MSI's Kombustor 3. I started off with around 119 FPS, and after some OC'ing, was hitting 132-ish. However, doing some benchmarks comparing to not OC-ing, I'm maybe getting a 1 FPS difference in games? Shadow of Mordor's benchmark was increased by .75, so basically margin of error.

So I'm curious why I'm seeing benefit in synthetic benchmarks, but not in real world use. I play at 1080p, any help is appreciated! Thanks!

Edit: My bad, let me post my other specs.

CPU: Intel I7 4930k
Mobo: Asus Sabertooth x79
RAM: 16 GB 1866 Mhz

I've got an SSD for my OS, another one for games, and a 1 TB hard drive for misc storage. So I highly doubt there is a bottleneck somewhere.

2

It may not increase your maximum FPS but you could be seeing more increases in the minimum FPS. If that's the case you're essentially just getting a performance buffer, which could make previously rocky games more playable.

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3

Not what I'm getting, let me post 2 different benchmarks from Metro: Last Light's benchmarking tool.

Not OC'd:

Average Framerate: 62.00
Max. Framerate: 105.24
Min. Framerate: 27.61

OC:

Average Framerate: 62.95
Max. Framerate: 105.50
Min. Framerate: 20.92

4

Could you post your MSI Afterburner (or similar) settings?

Thanks

5

Is there a specific way I can give you everything?

All I know I can tell you is that the Core was stable at +128, memory clock at +32

I plan on going higher if possible, but after no increase, even a decrease with Metro:LL's min framerate, I wanted to see what I've been doing wrong.

6

Have you maxed the power limit?

7

Not even close, if I remember correctly it was hitting 65-70%.

8

Hmm. Have you tried any other games? I would say that small overclocks will only make a difference in benchmarks but +128 core should be doing something, even if it is only 3-5 FPS.

9

Yep, did Shadow of Mordor in addition to Metro:LL, here are those benchmarks.

No OC:

AVG: 56
Min: 31
Max: 86

OC:

AVG: 57.28
Min: 33.22
Max: 79.11

So a decrease on Max (no biggie) 1 frame higher avg and 2 more min, is that to be expected?

I still feel like something is wrong.

10

If i remember right Shadow of Mordor is mainly limited to its insane vram usage have you tryed a -real bench- test like unigine valley or unigine heaven?
Unigine valley is free CLICK HERE FOR DOWNLOAD

11

How is your GPU usage? If it's not running 99-100% then there may be something hindering the card, be it a bottleneck, framelimiter/VSync or whatever.

12

I spent a few hours last night overclocking my gpu, as well. I kept trying an OC in Afterburner, then testing with Kombustor. It took me quite a while to realize that if a test fails, restart MSI Afterburner. My driver would crash during a failed test, I would change the OC a bit, and then it would appear to succeed, so I went higher and higher, not realizing it defaulted back to the stock clock whenever it failed the first time.

Also, I was having issues several months ago with 2x770's that would get extremely hot, wouldn't use the GPU past 50-60%, and didn't give an acceptable frame rate, and the problem ended up being that the default fan profile was much too low. Draw your own fan profile so the fans kick in higher and sooner; you may have reached the temp limit set in Afterburner or thermal throttling on the card.

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13

Thanks for the help everyone. I'm in the market for a new GPU, so I will not worry about it because of that. Thanks again. :)

14

Could there be something wrong with psu?

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15

Hmm, an interesting question.

I doubt it. I have an OC on my 4930k at 4.4 Ghz, atm, which is a full ghz OC, and that has had no issues.

However, it is not a normal brand to buy from.

It's a PC Power and Cooling 950w, but I've had it for 2 years now without any problems. So I doubt that's the problem.

EDIT: PC Power and Cooling no longer exists, it has now been named FirePower, so they had a rebrand.