The NVIDIA GeForce GTX 660 Review: GK106 Fills Out The Kepler Family
by Ryan Smith on September 13, 2012 9:00 AM ESTCrysis: Warhead
Kicking things off as always is Crysis: Warhead. It’s no longer the toughest game in our benchmark suite, but it’s still a technically complex game that has proven to be a very consistent benchmark. Thus even four years since the release of the original Crysis, “but can it run Crysis?” is still an important question, and the answer continues to be “no.” While we’re closer than ever, full Enthusiast settings at a 60fps is still beyond the grasp of a single-GPU card.
Crysis has been a game that has consistently penalized Kepler for its lack of memory bandwidth. Nowhere was this more evident than the GTX 660 Ti, which thanks to its memory bus reduction took a significant hit. But as we alluded to in our introduction, there’s a corner case where the GTX 660 is going to be able to easily keep up with the GTX 660 Ti: ROP and memory bandwidth-bound situations. As a result we’re looking at the best case scenario for the GTX 660 when held up against the GTX 660 Ti, which sees the GTX 660 offer 95% of the performance of the GTX 660 Ti. Most games aren’t going to be like this, but in this one case the GTX 660 may as well be as good as the GTX 660 Ti as far as performance goes, which goes to prove just how bottlenecked Crysis is by memory bandwidth.
Looking at a more meaningful comparison, because the GTX 660 doesn’t take a memory bandwidth hit compared to the GTX 660 Ti, the resulting card is much more resource balanced which in turn impacts AMD’s ability to lead in this benchmark. AMD once again wins here with the 7870 taking the lead, but only by a relatively modest 7% margin. This is the first time we haven’t seen a comparable AMD card lead by a significant margin in this generation, which for NVIDIA is an improvement though still not a reversal of fortunes. At the same time however NVIDIA isn’t doing too much better than the 7850 here, beating AMD’s lesser 7800 by an even more modest 5%.
As for NVIDIA’s older cards, the generational performance gains are in-line with what we’ve already seen out of the other GTX 600 cards. Compared to the GTX 460 1GB for example, a card that launched over 2 years ago at the same price, performance is up by 50-60%. But unsurprisingly this is less than the performance gain going from the 8800GT to the GTX 460, a similar timeline jump that saw performance more than double. At the very least NVIDIA certainly has the 8800GT licked at this point (by nearly a factor of 4x), but this means they’re also at risk of perpetuating longer upgrade cycles for current GTX 460 owners.
Moving on to minimum framerates, our results are almost the same with one interesting twist: the GTX 660 is now beating the more expensive GTX 660 Ti. Why? As we mentioned earlier, because of the higher core clock the ROPs on the GTX 660 actually have a greater theoretical throughput than the ROPs on the GTX 660 Ti. Since we’re not seeing any other factors that would explain this difference (i.e. drivers) it’s very likely that the GTX 660’s faster ROPs are giving it the advantage here.
Though while this is enough to push the GTX 660 ahead of the GTX 660 Ti, it’s not improving the GTX 660’s situation relative to the 7800 series at all. The GTX 660 is still closer to the 7850 than it is the 7870 here.
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TemjinGold - Thursday, September 13, 2012 - link
"For today’s launch we were able to get a reference clocked card, but in order to do so we had to agree not to show the card or name the partner who supplied the card.""Breaking open a GTX 660 (specifically, our EVGA 660 SC using the NV reference PCB),"
So... didn't you just break your promise as soon as you made it AND show a pic of the card right underneath?
Sufo - Thursday, September 13, 2012 - link
Haha, shhhh!Homeles - Thursday, September 13, 2012 - link
Reading comprehension is such an endangered resource...If it's the super clocked edition, it's obviously not a reference clocked card.
jonup - Thursday, September 13, 2012 - link
Exactly my thoughts.Ryan Smith - Thursday, September 13, 2012 - link
Homeles is correct. That's one of the cards from the launch roundup we're publishing later today.. The reference-clocked GTX 660 we tested is not in any way pictured (I'm not quite that daft).knutjb - Saturday, September 15, 2012 - link
No matter what you try to say it still reads poorly. It should be blatantly obvious about which card was which up front, which the article wasn't. I should have to dig when scanning through.Also, your picking it as the better choice over a card that has been out how long, over slight differences... If nvivda really wanted to me to say wow I'll buy it now, the card would have been no more than 199 at launch. 10 bucks under is the best they can do for being late to the party? And you bought the strategy. I have been equally disappointed with AMD when they have done the same thing.
MrSpadge - Sunday, September 16, 2012 - link
When reading Anadtech articles it's almost always safe to assume "he actually means what he's saying". Helps a lot with understanding.thomp237 - Sunday, September 23, 2012 - link
So where is this roundup? We are now 10 days on from your comment and still no signs of a roundup.CeriseCogburn - Friday, October 12, 2012 - link
I have been wondering where all the eyefinity amd fragglers have gone to, and now I know what has occurred.Eyefinity is Dead.
These Kepler GPU's from nVidia all can do 4 monitors out of the box. Sure you might find a cheap version with 3 ports, whatever - that's the minority.
So all the amd fanboys have shut their fat traps about eyefinity, since nVidia surpassed them with A+ 4 easy monitors out of the box on all the Kelpers.
Thank you nVidia dearly for shutting the idiot pieholes of the amd fanboys.
It took me this long to comment on this matter because nVidia fanboys don't all go yelling in unison sheep fashion about stuff like the little angry losing amd fans do.
I have also noticed all the reviewers who are so used to being amd fan rave boys themselves almost never bring up multimonitor and abhor pointing out nVidia does 4 while amd only does 3 except in very expensive special cases.
Yeah that's notable too. As soon as amd got utterly and totally crushed, it was no longer a central topic and central theme for all the review sites like this place.
That 2 week Island vacation every year amd puts hundreds of these reporters on must be absolutely wonderful.
I do hope they are treated very well and have a great time.
EchoOne - Wednesday, November 21, 2012 - link
LOL dude,the 660ti vs the 7950 in eyefinity would get destroyed.I know this because my friend has a comp build with a phenom 965be 4.2ghz and 660ti with 16gb of ram (i built this for him) and i have a fx 6100 4.7ghz,16gb ram and a 7950 i run a triple monitor setuphttps://www.youtube.com/watch?v=ZRXGveviruw&fe...
And his 660ti DIED trying to play the games at that res and at the same settings as i do.He had to take down his graphics settings from say gta4 from max settings down to about medium and high (i run very high)
So yeah sure it can run a couple monitors out of the box but same with eyefinity.And trust me their nvidia surround is not as polished as eyefinity..But they get props for trying.