The GeForce GTX 660 Ti Review, Feat. EVGA, Zotac, and Gigabyte
by Ryan Smith on August 16, 2012 9:00 AM ESTMeet The Gigabyte GeForce GTX 660 Ti OC
Our final GTX 660 Ti of the day is Gigabyte’s entry, the Gigabyte GeForce GTX 660 Ti OC. Unlike the other cards in our review today this is not a semi-custom card but rather a fully-custom card, which brings with it some interesting performance ramifications.
| GeForce GTX 660 Ti Partner Card Specification Comparison | ||||||
| GeForce GTX 660 Ti(Ref) | EVGA GTX 660 Ti Superclocked | Zotac GTX 660 Ti AMP! | Gigabyte GTX 660 Ti OC | |||
| Base Clock | 915MHz | 980MHz | 1033MHz | 1033MHz | ||
| Boost Clock | 980MHz | 1059MHz | 1111MHz | 1111MHz | ||
| Memory Clock | 6008MHz | 6008MHz | 6608MHz | 6008MHz | ||
| Frame Buffer | 2GB | 2GB | 2GB | 2GB | ||
| TDP | 150W | 150W | 150W | ~170W | ||
| Width | Double Slot | Double Slot | Double Slot | Double Slot | ||
| Length | N/A | 9.5" | 7.5" | 10,5" | ||
| Warranty | N/A | 3 Year | 3 Year + Life | 3 Year | ||
| Price Point | $299 | $309 | $329 | $319 | ||
The big difference between a semi-custom and fully-custom card is of course the PCB; fully-custom cards pair a custom cooler with a custom PCB instead of a reference PCB. Partners can go in a few different directions with custom PCBs, using them to reduce the BoM, reduce the size of the card, or even to increase the capabilities of a product. For their GTX 660 Ti OC, Gigabyte has gone in the latter direction, using a custom PCB to improve the card.
On the surface the specs of the Gigabyte GeForce GTX 660 Ti OC are relatively close to our other cards, primarily the Zotac. Like Zotac Gigabyte is pushing the base clock to 1033MHz and the boost clock to 1111MHz, representing a sizable 118MHz (13%) base overclock and a 131MHz (13%) boost overclock respectively. Unlike the Zotac however there is no memory overclocking taking place, with Gigabyte shipping the card at the standard 6GHz.
What sets Gigabyte apart here in the specs is that they’ve equipped their custom PCB with better VRM circuitry, which means NVIDIA is allowing them to increase their power target from the GTX 660 Ti standard of 134W to an estimated 141W. This may not sound like much (especially since we’re working with an estimate on the Gigabyte board), but as we’ve seen time and time again GK104 is power-limited in most scenarios. A good GPU can boost to higher bins than there is power available to allow it, which means increasing the power target in a roundabout way increases performance. We’ll see how this works in detail in our benchmarks, but for now it’s good enough to say that even with the same GPU overclock as Zotac the Gigabyte card is usually clocking higher.
Moving on, Gigabyte’s custom PCB measures 8.4” long, and in terms of design it doesn’t bear a great resemblance to either the reference GTX 680 PCB nor the reference GTX 670 PCB; as near as we can tell it’s completely custom. In terms of design it’s nothing fancy – though like the reference GTX 670 the VRMs are located in the front – and as we’ve said before the real significance is the higher power target it allows. Otherwise the memory layout is the same as the reference GTX 660 Ti with 6 chips on the front and 2 on the back. Due to its length we’d normally insist on there being some kind of stiffener for an open air card, but since Gigabyte has put the GPU back far enough, the heatsink mounting alone provides enough rigidity to the card.
Sitting on top of Gigabyte’s PCB is a dual fan version of Gigabyte’s new Windforce cooler. The Windforce 2X cooler on their GTX 660 Ti is a bit of an abnormal dual fan cooler, with a relatively sparse aluminum heatsink attached to unusually large 100mm fans. This makes the card quite large and more fan than heatsink in the process, which is not something we’ve seen before.
The heatsink itself is divided up into three segments over the length of the card, with a pair of copper heatpipes connecting them. The bulk of the heatsink is over the GPU, while a smaller portion is at the rear and an even smaller portion is at the front, which is also attached to the VRMs. The frame holding the 100mm fans is then attached at the top, anchored at either end of the heatsink. Altogether this cooling contraption is both longer and taller than the PCB itself, making the final length of the card nearly 10” long.
Finishing up the card we find the usual collection of ports and connections. This means 2 PCIe power sockets and 2 SLI connectors on the top, and 1 DL-DVI-D port, 1 DL-DVI-I port, 1 full size HDMI 1.4 port, and 1 full size DisplayPort 1.2 on the front. Meanwhile toolless case users will be happy to see that the heatsink is well clear of the bracket, so toolless clips are more or less guaranteed to work here.
Rounding out the package is the usual collection of power adapters and a quick start guide. While it’s not included in the box or listed on the box, the Gigabyte GeForce GTX 660 Ti OC works with Gigabyte’s OC Guru II overclocking software, which is available on Gigabyte’s website. Gigabyte has had OC Guru for a number of years now, and with this being the first time we’ve seen OC Guru II we can say it’s greatly improved from the functional and aesthetic mess that defined the previous versions.
While it won’t be winning any gold medals, in our testing OC Guru II gets the job done. Gigabyte offers all of the usual tweaking controls (including the necessary power target control), along with card monitoring/graphing and an OSD. It’s only real sin is that Gigabyte hasn’t implemented sliders on their controls, meaning that you’ll need to press and hold down buttons in order to dial in a setting. This is less than ideal, especially when you’re trying to crank up the 6000MHz memory clock by an appreciable amount.
Wrapping things up, the Gigebyte GeForce GTX 660 Ti OC comes with Gigabyte’s standard 3 year warranty. Gigabyte will be releasing it at an MSRP of $319, $20 over the price of a reference-clocked GTX 660 Ti and $10 less than the most expensive card in our roundup today.
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rarson - Friday, August 17, 2012 - link
I might have said that ten years ago, but when I read stuff like "the GTX 680 marginalized the Radeon HD 7970 virtually overnight," I wonder what kind of bizarro universe I've stumbled into.CeriseCogburn - Sunday, August 19, 2012 - link
That's the sales numbers referred to there rarson - maybe you should drop the problematic amnesia ( I know you can't since having no clue isn't amnesia), but as a reminder, amd's crap card was $579 bucks and beyond and nVidia dropped in 680 at $499 across the board...Amd was losing sales in rapid fashion, and the 680 was piling up so many backorders and pre-purchases that resellers were gbegging for relief, and a few reviewers were hoping something could be done to stem the immense backorders for the 680.
So:
" "the GTX 680 marginalized the Radeon HD 7970 virtually overnight,"
That's the real world, RECENT HISTORY, that real bizarro world you don't live in, don't notice, and most certainly, will likely have a very difficult time admitting exists.
Have a nice day.
Biorganic - Saturday, August 18, 2012 - link
Go look up Bias in a dictionary instead of flinging around insults like a child. When the adults converse amongst themselves they like to Add things to the actual conversation, not unnecessarily degrade people. Thanks! @$$-OJamahl - Thursday, August 16, 2012 - link
The point I was making was that Nvidia has seeded overclocked cards to the majority of the tech press, while you had a go at AMD for their 7950 boost.After all the arguments and nonsense over the 7950 boost, hardly anyone benchmarked it but still plenty went ahead and benched the overclocked cards sent by Nvidia. Two AMD partners have shown they are releasing the 7950 boost edition asap, prompting a withdrawal of the criticisms from another nvidia fansite, hardwarecanucks.com
So again I ask, AMD's credibility? The only credibility at stake is the reviewers who continually bend over to suit Nvidia. Nvidia has no credibility to lose.
silverblue - Friday, August 17, 2012 - link
I'm afraid I have to back you up on this one. NVIDIA released not one, not two but THREE GT 640s, and I think people have forgotten about that one. AMD have replaced the 7950 BIOS and as such have overclocked it to the performance level where it probably should've been to start with (the gap between 7950 and 7970 was always far more than the one between 7870 and 7950).Yes, AMD should've given it a new name - 7950 XT as I said somewhere recently - but it's not even two-thirds as bad as the GT 640 fiasco. At least this time, we're talking two models separated only by a BIOS change and the consequently higher power usage, not two separate GPU generations with vastly different clocks, shader counts, memory types and so on.
If I'm wrong, I'm wrong, however I don't understand how AMD's GPU division's credibility could be damaged by any of this. Feel free to educate me. :)
CeriseCogburn - Sunday, August 19, 2012 - link
For your education and edification: amd failed in their card release by clocking it too low because they had lost the power useage war(and they knew it), and charging way too much on release.They suck, and their cred is ZERO, because of this.
Now it not only harmed amd, it harmed all of us, and all their vender partners, we all got screwed and all lost money because of amd's greed and incompetence.
Now amd, in a desperate panic, and far too long after the immense and debilitating blunder, that also left all their shareholders angry (ahem), after dropping the prices in two or three steps and adding 3 games to try to quell the massive kicking their falling sales to nVidia injuries...
FINALLY pulled their head out of it's straight jacket, well, halfway out, and issued permission for a GE version.
Now, maybe all you amd fans have been doing much and very excessive lying on 78xx79xx OC capabilities, or amd is just dumb as rocks and quite literally dangerous to themselves, the markets, their partners, all of us.
I think it's a large heaping of BOTH.
So there we have it - amd cred is where amd fanboy cred is - at the bottom of the barrel of slime.
Galidou - Sunday, August 19, 2012 - link
Anyway, with you AMD fails, always failed and will continue to fail at everything... I don't know if you think people will read your posts like religious madmans and beleive it a 100%, you're making it so exagerated, that it's barely readable.The words nazi and such comes back so often when you go on the madman route, that it's a wonder if anyone gives you any credibility. A little sad because you have nice arguments, you just display them surrounded by so much hate, it's hard to give you any credit for them.
We do exagerate AMD's performance just for the sake of being fanboys, but not to the point of saying such debilitating stuff like you're so good at it. Not to the point of totally destroying Nvidia and saying it's worth NOTHING like you do for AMD. I may lean a little on AMD's side because for my money they gave me more performance from the radeon 4xxx to the 6xxx series. I won't forget my 8800gt either, that was a delight for the price too. But I can recon when a video card wins at EVERYTHING and is doing WONDERS and none is happening now, it's a mixed bag of feeling. between overclockability, optimization on certain games, etc...
When the 8800gt and radeon 4870 came out, there was nothing people could say, just nothing, for the price, they were wonders, trampling over anythingbefore and after but at the same time you said they were mistake because they were not greedy enough moves.
Wanna speak about greed, why is Nvidia so rich, you defend the most rich video card maker in history but you accuse the others of being greedy, society is built on greed, go blame others. Couldn't they sell their GPU at lower prices to kill AMD and be less greedy? No, if AMD die, you'll see greed and 800$ gpus, speak about greed.
CeriseCogburn - Thursday, August 23, 2012 - link
Didn't read your loon spiel, again, not even glossed, part of 1st sentence.I won't tell you to shut up or change what you say, because I'm not a crybaby like you.
AMD sucks, they need help, and they only seem to fire more people.
Galidou - Thursday, August 23, 2012 - link
To date your best argument that repeats itself is ''AMD sucks'' which is something you learn to say when you're a kid. You're not a crybaby ohhh that's new, you keep crying more than everyone else I've seen, TheJian might be a fanboy but you're more related to the fanatic side of the thing.Still, they are the most rich video maker in history, but they still try to manipulate opinions like every company does. Why? if their product is so good and perfect, why do they have to manipulate? I hear you already saying something like: It's because that AMD suck, they suck so much that Nvidia has to make em suck even more by manipulating the stoopid reviewers because the world is against Nvidia and I'm their Crusader.... good job.
CeriseCogburn - Thursday, August 23, 2012 - link
Yes, I've never crapload of facts nor a single argument of note, and your head is a bursting purple strawberry too mr whiner.