The GeForce GTX 660 Ti Review, Feat. EVGA, Zotac, and Gigabyte
by Ryan Smith on August 16, 2012 9:00 AM ESTOC: Power, Temperature, & Noise
Our final task is our look at the overclocking capabilities of our GTX 660 Ti cards. Based on what we’ve seen thus far with GTX 660 Ti, these factory overclocked parts are undoubtedly eating into overclocking headroom, so we’ll have to see just what we can get out of them. The very similar GTX 670 topped out at around 1260MHz for the max boost clock, and between 6.6GHz and 6.9GHz for the memory clock.
| GeForce 660 Ti Overclocking | |||||
| EVGA GTX 660 Ti SC | Zotac GTX 660 Ti AMP | Gigabyte GTX 660 Ti OC | |||
| Shipping Core Clock | 980MHz | 1033MHz | 1033MHz | ||
| Shipping Max Boost Clock | 1150MHz | 1175MHz | 1228MHz | ||
| Shipping Memory Clock | 6GHz | 6.6GHz | 6GHz | ||
| Shipping Max Boost Voltage | 1.175v | 1.175v | 1.175v | ||
| Overclock Core Clock | 1030MHz | 1033MHz | 1083MHz | ||
| Overclock Max Boost Clock | 1200MHz | 1175MHz | 1278MHz | ||
| Overclock Memory Clock | 6.5GHz | 6.8GHz | 6.6GHz | ||
| Overclock Max Boost Voltage | 1.175v | 1.175v | 1.175v | ||
As we suspected, starting with factory overclocked cards isn’t helping here. Our Zotac card wouldn’t accept any kind of meaningful GPU core overclock, so it shipped practically as fast as it could go. We were able to squeeze out another 200MHz on the memory clock though.
Meanwhile our EVGA and Gigabyte cards fared slightly better. We could push another 50MHz out of their GPU clocks, bringing us to a max boost clock of 1200MHz on the EVGA card and 1278MHz on the Gigabyte card. Memory overclocking was similarly consistent; we were able to hit 6.5GHz on the EVGA card and 6.6GHz on the Gigabyte card.
Altogether these are sub-5% GPU overclocks, and at best 10% memory overclocks, which all things considered are fairly low overclocks. The good news is that reference-clocked cards should fare better since their headroom has not already been consumed by factory overclocking, but binning also means the best cards are going to be going out as factory overclocked models.
Moving on to our performance charts, we’re going to once again start with power, temperature, and noise, before moving on to gaming performance.
Unsurprisingly, given the small power target difference between the GTX 670 and the GTX 660 Ti, any kind of overclocking that involves raising the power target quickly pushes power consumption past the GTX 670’s power consumption. How much depends on the test and the card, with the higher power target Gigabyte card starting with a particular disadvantage here as its power consumption ends up rivaling that of the GTX 680.
We also see the usual increase in load temperatures due to the increased power consumption. The Zotac and Gigabyte cards fare well enough due to their open air coolers, but the blower-type EVGA card is about as high as we want to go at 80C under OCCT.
Last but not least, looking at noise levels we can see an increase similar to the temperature increases we just saw. For the Zotac and EVGA cards noise levels are roughly equal with the reference GTX 680, which will be important to remember for when we’re looking at performance. Meanwhile the Gigabyte card continues to shine in these tests thanks to its oversized cooler; even OCCT can only push it to 46.8dB.
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blanarahul - Thursday, August 16, 2012 - link
First! Oh yeah!blanarahul - Thursday, August 16, 2012 - link
GTX 660 Ti: Designed for overclockers. Overclock memory and thats it.CeriseCogburn - Thursday, August 23, 2012 - link
The cores are hitting over 1300 consistently. Oh well, buh bye amd.Galidou - Monday, August 27, 2012 - link
Well it depends on the samples, the 660 ti I bought for my wife, I tested it in my pc and over 1290 core clock(with boost) after 10-15 minutes gaming in a game that doesn't even taxes the gpu past 70%, the video card crashes and windows tells me ''the adapter has stopped responding''.Crysis 2 stutters on some levels but it's mainly stable 95% of the time wheras my 7950 overclocked is not doing this.
It would artifact in MSI kombustor with a slight increase in voltage and core clock above 1260. Good thing it's for my wife and not me, she won't overclock as it's way enough for her mere 1080p resolution. The memory overclocks at 6,6ghz easily.
GmTrix - Friday, August 17, 2012 - link
Dear God, Have AnandTech readers really sunk to this level of childishness?Chaitanya - Friday, August 17, 2012 - link
shocking.CeriseCogburn - Sunday, August 19, 2012 - link
TXAA - AWESOME - THE JAGGIES ARE GONE.Thank you nVidia for having real technology developement, unlike amd loser
Thank you nVidia for being able to mix ram chip sizes or to distribute ram chips across your memory controllers with proprietary technology that you keep secret depsite amd fanboys desiring to know how you do it so they can help amd implement for free.
Thanks also for doing it so well, even with reviewers putting it down and claiming it can result in 48 bandwidth instead of 144 bandwidth, all the games and tests they have ever thrown at it in a desperate amd fanboy desire to find a chink in it's armor has yielded ABSOLUTELY NOTHING, as in, YOU'VE DONE IT PERFECTLY AGAIN nVidia.
I just love the massive bias at this site.
It must be their darn memory failing.
Every time they make a crazy speculative attack here on nVidia where all their rabid research to find some fault provides a big fat goose egg, they try to do it again anyway, and they talk like they'll eventually find something even though they never do. By the time they give up, they're off on some other notional and failed to prove it put down against nVidia.
192 bit bus / 2GB ram / unequal distribution / PERFECT PERFORMANCE IMPLEMENTATION
Get used to it.
TheJian - Sunday, August 19, 2012 - link
ROFL... I should have just read more posts...Might have saved me a crapload of typing Cerise...LOL. Nah, it needs to be said more by more than ONE person :) Call a spade a spade people.I tried to leave out the word BIAS and RYAN/Anandtech in the same sentence :)
But hold on a minute, while I fire up my compute crap (or 2008 game rendered moot by it's own 2011+2012 hires patch equivalent) so I can run up my electric bill so I can prove the AMD card wins in something I never intend to use a gaming card for or run at a res that these things aren't being used for by 98% of the people. Folding? You must be kidding. Bitcoin hunting?...LOL that party was over ages ago - you won't pay for your card getting bitcoins today - it was over before anandtech did their article on bitcoins - but I bet they helped sell some AMD cards. Quadro+fireGL cards are for this crap (computational NON game stuff I mean). Recommending cards based on computational crap is pointless when they're for gaming.
I'm an amd fanboy but ONLY at heart. My wallet wins all arguments regardless of my love for AMD (or my NV stock...LOL). I'm trying to hold out for AMD's next cpu's but I'm heavily leaning Ivy K for Black Friday, fanboy AMD love or not. They ruined their company by paying 3x the price for ATI, which in turn crapped on their stock and degraded their company to near junk bond status in said stock (damn them, I used to be able to ride the rollercoaster and make money on AMD!). I'm still hoping for a trick up their sleeve nobody knows about. But I think they're just holding back cpu's to clear shelves, nothing special in the new ones coming. Basically a sandy to ivy upgrade but on AMD's side for bullsnozer. The problem is it's still going to be behind ivy by 25-50% (in some cases far worse). Unless it's an EXCEPTIONAL price I can't help but pick IVY as I do a lot of rar/par stuff and of course gaming. I'd get hurt way too much by following my heart this round (I had to take xeon e3110 s775 last time for the same reason).
My planned Black Friday upgrade looks like, X motherboard (too early for a pick or homework not knowing AMD yet), Ivy 3770K (likely) and a 660TI with the highest default clock I can get at a black friday price :) (meaning $299 or under for zotac AMP speeds or better). I already have 16GB ddr3 waiting here...LOL. I ordered it ages ago, figuring it's going to go through the roof at some point (win8? crappy as it is IMHO). I'm only down $10 so far after purchasing mem I think in Jan or so...LOL. In the end I think I'll be up $30-80 at some point (I only paid $75 for 16GB). Got my dad taken care of too, we're both just waiting on black friday and all this 28nm vid card crap to sort out. End of Nov should have some better tsmc cards available (or another fabs chips?). I'm guessing a ton at high clocks by then for under $299.
Anyway, THANKS for the good laugh :) I needed that after reading my 4th asinine review. Guru3d looking up for the 5th though...LOL. He doesn't seem to care who wins, & caters more to the wallet it seems (great OC stuff there too). He usually doesn't have a ton of cards or chips in each review though, so you have to read more than one product review there to get the picture, but they're good reviews. Hilbert Hagedoorn (sp?) does pretty dang good. By the end of it, I'll have hit everyone I think (worth mentioning, techreport, hardocp, ixbtlabs, hexus etc - sorry if I left a good one out guys). I seem to read 10+ these days before parting with cash. :( I like hardocp for a difference in ideas of benchmarking. He benches and states the HIGHEST PLAYABLE SETTINGS per card. It's a good change IMHO, though I still require all the other reviews for more games etc. I'm just sure to hit him for vidcard reviews just for the settings I can expect to get away with in a few games. I wish guru3d had thrown in an OC'd 660TI into the 7950 boost review since they're so easily had clocked high at $299/309. But one more read gets that picture, or can be drawn by all the asinine reviews and his 7950 boost review...LOL. I have to get through the rest of guru3d, then off to hardocp for the different angle :) Ahh, weekend geek reading galore with two new gpu cards out this week ;)
Jorgan22 - Sunday, October 7, 2012 - link
Review was a good read, glad to see the 660 TI is doing well.I have no idea what's up with the comments though, especially you TheJian, you wrote a novel, ending half the paragraphs with "... LOL".
If you're going to waste so much time doing that, post it in the forums, not in a comment thread where its not going to get read buddy, just hurts you.
RussianSensation - Sunday, August 19, 2012 - link
1) TXAA is a blurry mess. See videos or screenshots. It's an option but let's not try claiming it's some new revolutionary anti-aliasing features.Instead HD7950 can actually handle MSAA and mods in Skyrim and Batman AC and not choke.
http://www.computerbase.de/artikel/grafikkarten/20...
2) That review left 2 critical aspects out:
(I) Factory preoverclocked, binned after-market 7950s run cooler, quieter and at way lower voltage than that reference artificially overvolted 7950B card tested in the review (see MSI TwinFrozr 3, Gigabyte Windforce 3x for $320-330 on Newegg).
(II) Those same after-market 7950s hit 1100-1200mhz on 1.175V or less in our forum. At those speeds, the HD7950 > GTX680/HD7970 Ghz Edition. How is that for value at $320-330?
The review didn't take into account that you can get way better 7950 cards and they overclock 30-50%, and yet the same review took after-market 660Tis and used their coolers for noise testing and overclocking sections against a reference based 7950.
Let's see how the 660Ti does against the $320 MSI TwinFrozr 7950 @ 1150mhz with MSAA on in Metro 2033, Crysis 1/Warhead, Anno 2070, Skyrim with ENB Mods w/8xMSAA, Batman AC w/8xMSAA, Dirt Showdown, Sleeping Dogs, Sniper Elite V2, Serious Sam 3, Bulletstorm, Alan Wake, Crysis 2 with MSAA. It's going to get crushed, that's what will happen.