NVIDIA GeForce GTX 670 Review Feat. EVGA: Bringing GK104 Down To $400
by Ryan Smith on May 10, 2012 9:00 AM ESTMeet The GeForce GTX 670
Because of the relatively low power consumption of GK104 relative to past high-end NVIDIA GPUs, NVIDIA has developed a penchant for small cards. While the GTX 680 was a rather standard 10” long, NVIDIA also managed to cram the GTX 690 into the same amount of space. Meanwhile the GTX 670 takes this to a whole new level.
We’ll start at the back as this is really where NVIDIA’s fascination with small size makes itself apparent. The complete card is 9.5” long, however the actual PCB is far shorter at only 6.75” long, 3.25” shorter than the GTX 680’s PCB. In fact it would be fair to say that rather than strapping a cooler onto a card, NVIDIA strapped a card onto a cooler. NVIDIA has certainly done short PCBs before – such as with one of the latest GTX 560 Ti designs – but never on a GTX x70 part before. But given the similarities between GK104 and GF114, this isn’t wholly surprising, if not to be expected.
In any case this odd pairing of a small PCB with a large cooler is no accident. With a TDP of only 170W NVIDIA doesn’t necessarily need a huge PCB, but because they wanted a blower for a cooler they needed a large cooler. The positioning of the GPU and various electronic components meant that the only place to put a blower fan was off of the PCB entirely, as the GK104 GPU is already fairly close to the rear of the card. Meanwhile the choice of a blower seems largely driven by the fact that this is an x70 card – NVIDIA did an excellent job with the GTX 560 Ti’s open air cooler, which was designed for the same 170W TDP, so the choice is effectively arbitrary from a technical standpoint (there’s no reason to believe $400 customers are any less likely to have a well-ventilated case than $250 buyers). Accordingly, it will be NVIDIA’s partners that will be stepping in with open air coolers of their own designs.
Starting as always at the top, as we previously mentioned the reference GTX 670 is outfitted with a 9.5” long fully shrouded blower. NVIDIA tells us that the GTX 670 uses the same fan as the GTX 680, and while they’re nearly identical in design, based on our noise tests they’re likely not identical. On that note unlike the GTX 680 the fan is no longer placed high to line up with the exhaust vent, so the GTX 670 is a bit more symmetrical in design than the GTX 680 was.
Note: We dissaembled the virtually identical EVGA card here instead
Lifting the cooler we can see that NVIDIA has gone with a fairly simple design here. The fan vents into a block-style aluminum heatsink with a copper baseplate, providing cooling for the GPU. Elsewhere we’ll see a moderately sized aluminum heatsink clamped down on top of the VRMs towards the front of the card. There is no cooling provided for the GDDR5 RAM.
Note: We dissaembled the virtually identical EVGA card here instead
As for the PCB, as we mentioned previously due to the lower TDP of the GTX 670 NVIDIA has been able to save some space. The VRM circuitry has been moved to the front of the card, leaving the GPU and the RAM towards the rear and allowing NVIDIA to simply omit a fair bit of PCB space. Of course with such small VRM circuitry the reference GTX 670 isn’t built for heavy overclocking – like the other GTX 600 cards NVIDIA isn’t even allowing overvolting on reference GTX 670 PCBs – so it will be up to partners with custom PCBs to enable that kind of functionality. Curiously only 4 of the 8 Hynix R0C GDDR5 RAM chips are on the front side of the PCB; the other 4 are on the rear. We typically only see rear-mounted RAM in cards with 16/24 chips, as 8/12 will easily fit on the same side.
Elsewhere at the top of the card we’ll find the PCIe power sockets and SLI connectors. Since NVIDIA isn’t scrambling to save space like they were with the GTX 680, the GTX 670’s PCIe power sockets are laid out in a traditional side-by-side manner. As for the SLI connectors, since this is a high-end GeForce card NVIDIA provides 2 connectors, allowing for the card to be used in 3-way SLI.
Finally at the front of the card NVIDIA is using the same I/O port configuration and bracket that we first saw with the GTX 680. This means 1 DL-DVI-D port, 1 DL-DVI-I port, 1 full size HDMI 1.4 port, and 1 full size DisplayPort 1.2. This also means the GTX 670 follows the same rules as the GTX 680 when it comes to being able to idle with multiple monitors.
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Galidou - Saturday, May 12, 2012 - link
Massive smackdown, lol it made AMD lower it'S prices by 50-60$, that's not massive.You know what's massive, my two radeon 6870 that I paid 130$ each and still compete with those 400$ cards... That's a massive smackdown because I bought them almost A FREAKING YEAR AGO. Take that abuser of the word ''massive'' :P
SlyNine - Sunday, May 13, 2012 - link
Not sure that comments was meant for me. I agree with you.CeriseCogburn - Sunday, May 13, 2012 - link
I very recently ( a couple months ago) recommended a 6870 to a very close friend, I think the price was about $159 and it had maybe some rebate at the egg.He bought it and has been running it for his several sims, it was the best bang for the buck at the time in a level above his then current 3 or 4 running vid cards ( 4000+5000 series).
So no doubt amd can have a deal worth purchasing, it's just not there at all in these 2 new generations. Not even a tiny bit.
Galidou - Sunday, May 13, 2012 - link
And what's the reason for that, do you know? It's not because Nvidia IS SO FAR SUPERIOR ffs stop with that, it may be superior but it's not a civic vs a ferrari. AMD had the price/performance/die size superiority because they'Ve been doing(since radeon 4870) a shift in making the most heavy gpus in the world.Nvidia was focusing on a more computationnal approach and biggest gpu, strongest performance since... well since it's alive I think. Nvidia simply took AMD's way for this gen, forget about compute power a little and focus on smaller die for mazimum performance and low consumption while AMD made the move the other way, improved their compute power at the cost of die size and power consumption.
That's what GCN is all about. it'S about the same thing that happened with GTX 2xx vs radeon 48xx cept that 4870 was more than TWICE smaller than GTX 2xx and almost as performant and sometimes even more. Not a mere 43% difference in die size, MORE THAN DOUBLE the size and still were so close in performance.
And why am I doing this analysis and you didn't, because you were too much occupied at launching inflammatory disrespectful stuff, like lots of nvidia fanboys do. People don't deserve this in a ''computer part'' oriented discussion. You were at the same time saying people were stupid and disrespectful while you were doing the same, let's say even worse.
Now get a neutral vision of things before commenting like you do, you wanna be a fanboy, at least do it in the light of respect. Did I call you any names now? Did I have to use the words ''stupid'', ''analphabet'', ''dumbfuck'', and so on... No because that was meaningless. Learn from the best of die like the rest.
CeriseCogburn - Sunday, May 13, 2012 - link
Yes you're a smack talker name calling disrespectful jerk.Yes of course you did, and you're a red fanboy and angry about all my absolutely valid points.
That wall of text you have there is a big zero of hate - some toward me, so playing some innocent jay card doesn't work either, and BTW you've now posted a curse word, something I have never done.
So you're a garbage mouth, and very disrespectful.
Galidou - Monday, May 14, 2012 - link
I never called you any names NEVER look at all my posts, I never called you even one name and you just did it again and again but I'm the one who lacks respect what's that:''disrespectful jerk.''
''you're a garbage mouth''
That word I posted was an example, it wasn't meant toward anyone it was an example.
CeriseCogburn - Thursday, May 31, 2012 - link
Oh stop your lying, you attack and call names more than anyone, it's your whole text every time.CeriseCogburn - Sunday, May 13, 2012 - link
PSangry disser Galidou " And why am I doing this analysis and you didn't, "
Why you are doing this analysis is because you are a pure amd troll and have to go back to the last generation to try to make some idiotic historical point because you have no current points and no current rebuttals.
Furthermore you claim I am somehow unsound by not having made your crybaby last generation whining no real point but I have made the more pertinent point as nVidia beat amd in every single metric here.
I guess for your "win" you need to squeal about respect as you do the same trash talk, then go back to a prior generation to try to whine about what exactly ?
You having a neutral vision is one big fat joke.
You're in with all the amd fanboys here telling lies and going back a generation and whining about that...
It would be nice if your snide remarks could be directed at pertinent points I have made but so far you're incapable, and often just on a troll attack against me personally in at least two of your other posts.
What were you spewing about up there anyway ? Power ? LOL
Guess who loses that sonny.
Galidou - Monday, May 14, 2012 - link
these are the words you currently used in about 4-5 posts of yours, I don'T want to make any point with you toward video cards related discussion because of that, these are the words you use, I just want you to realize what you do:''pathetic amd fanboys
massive ignorance
disrespectful jerk
smack talker
angry disser
you're so ignorant
most ignorant and clueless fools
Where exactly is the brain ?
(roll eyes at the immense ignorance, again)''
and then at the same time use a sentence like:
''Thank me when you grow up enough to realize rebutting lies and fibs by others is an adult and responsible''
The attitude words you used up there are so responsible... but no, you could just make your point and end it with a ''.'' but you ahve to add those words attacking everyone in your way, but sorry I forgot, I'm the one who attacks you, you're the perfect one... I'm maybe a troll but I'm not mad like you are.
But hey, your arguments are so right that you gotta use all this stuff in your argumentation and call everyone a mad hater. Who's the hater? I already like Nvidia I'm no AMD fanboy.
CeriseCogburn - Thursday, May 31, 2012 - link
You're a total amd fanboy and a liar, and attacker, and name caller, and cursing rude jerk.I'm sure you enjoy playing an angel in between all of that.