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Does Higher 'Kepler Boost' value = Higher Core OC Potential? Need Input! - Page 7

post #61 of 69
Quote:
Originally Posted by brettjv View Post

KB has to be a multiple of 13, so you must be at 26 not 27. The core clock 'stepping' (or 'straps') on Kepler is probably throwing you off here wink.gif
You are definitely going to be an outlier here ... you're getting a great OC w/real low KB value. Are you SURE you're calculating it properly, and it's only 26? Asmola has the same card and is reporting a KB of 210 headscratch.gif

I was pretty sure the calculations were correct. I'd double check, but I just flashed with new 1.212v bios from DCII OC, and of course GPUZ reports all default/boost clocks differently. Once I'm done finding my stable OC with new bios, I will report again. Or if I decide to flash back to my original bios, I recheck these numbers.
post #62 of 69
Well I got my 2nd card and it's freaking horrible. ASIC score is 85.5%


error-id10t - EVGA 670 SC+ - 65Mhz - 1215Mhz

So they OC the same (have not tried games yet but this is 3DMark11), but because of the KB being so much lower it barely reaches the 1st cards base boost clocks. I have a funny feeling that games like BF3 won't take the max. OC for this card at which time it'll be below the 1st card running at stock.

Not happy.

Updated KB as per Heaven3 and New Dawn instead of what 3DMark11 appeared to show (up from 52 to 65).
Edited by error-id10t - 9/16/12 at 8:11pm
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post #63 of 69
DimmyK --- Asus GTX 680 DCII TOP --- 130MHz --- 1335MHz

This is with OC (not TOP) 1.212v bios - GPUZ now shows lower boost clocks compared to my original boost:1205 with this bios as opposed 1229 with my original TOP bios. This should add some confusion smile.gif



I guess I did calculate KB incorrectly first time...
Edited by DimmyK - 9/20/12 at 11:27am
post #64 of 69
Thread Starter 
I just remembered I let this thread die cause I couldn't get enough submissions to run a proper statistical analysis, but now that it seems like everyone in the world has a Kepler, and given that I'm still interested in the question at hand ... does anyone else care to help out in the collective wisdom of OCN by making a submission?

Once I hit 30 data points, I'm going to analyze the numbers to see if there's a legit correlation between higher KB and higher OC.

For future submissions, if you could also please list what GPU-Z shows as your 'stock' boost clock, (on the GB card that would be 1059, on reference models it's 980, etc) that would be cool.

It occurred to me belatedly that I probably should take the card's out-of-box overclock into account when I break this all down. Reason being, something like a TOP, with it's massive out-of-box OC on the boost clock, but typically low KB values (esp. with the 'corrective' bios) is going to skew the results if I only consider KB.

So ultimately I want to assess 'stock max boost value' vs. 'OC'd max boost value' as well as the direct relation between KB and Max OC.
    
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post #65 of 69
Let's see if I got this right:

Forceman --- EVGA GTX 680 (reference) --- 65 --- 1280
post #66 of 69
Thread Starter 
Perfect Forceman ... added to OP.

Any others?
    
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post #67 of 69
I know it's be a while since anyone has posted but here you go.

ccmoreaucc --- ASUS GTX 670 DirectCU II (non top) --- 78MHz --- 1162MHz

My base boost clock is 1084MHz (for now).
Edited by ccmoreaucc - 3/26/13 at 1:03pm
post #68 of 69
siffonen --- EVGA GTX 680 (reference) --- 65MHz --- 1280MHz
post #69 of 69
Re-living an old thread, but useful info to input anyway:

Totally Dubbed --- MSI GTX680 Twin Frozr III OC --- 195mhz --- 1309mhz (with a +55 core clock OC) and 1254mhz at stock

Proof: Warning: Spoiler! (Click to show)
My Kepler boost is 195mhz on my core

STOCK:
Core: 1059
Boost: 1124
Kepler boost: 1254
Mem clock: 1502 - effective: 3004





OC profile:
Core: 1114
Boost: 1179
Kepler boost: 1309
Mem clock: 1802 - effective: 3604


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