The NVIDIA GeForce GTX 970 Review: Featuring EVGA
by Ryan Smith on September 26, 2014 10:00 AM ESTOverclocking
With GTX 980 we saw first-hand how GM204 had very significant overclocking headroom. Even without the ability to meaningful overvolt on NVIDIA cards, we were able to push our base GPU clock speed up from 1126MHz to 1377MHz, or in terms of the maximum boost bin, from 1265MHz to 1515MHz. Consequently with GTX 970 shipping at lower clock speeds, we have very lofty expectations here.
But running counter to that will be TDP. As we have already seen, GTX 970 is TDP limited right out of the gate, so even if our card has more clock speed headroom, its 110% TDP limit doesn’t leave much more in the way of power headroom. Furthermore as this is already a factory overclocked card, there’s no guarantee that EVGA has left us much overclocking headroom to play with in the first place.
| EVGA GeForce GTX 970 FTW Overclocking | ||||
| FTW | Overclocked | |||
| Core Clock | 1216MHz | 1241MHz | ||
| Boost Clock | 1367MHz | 1392MHz | ||
| Max Boost Clock | 1418MHz | 1455MHz | ||
| Memory Clock | 7GHz | 7.8GHz | ||
| Max Voltage | 1.218v | 1.243v | ||
And in fact our results show they haven’t. We aren’t able to get even another 50MHz out of our GPU before errors start setting in; 25MHz is all we will get, which pushes our base GPU clock speed from 1216MHz to 1241MHz, and our maximum boost clock from 1418MHz to 1455MHz. Overall this is a weaker overclock than GTX 980, though not immensely so.
Meanwhile memory overclocking was just as fruitful as it was on GTX 980, with our card being able to handle up to 7.8GHz on its GDDR5 memory. As we saw with GTX 980 we’re nearly as memory bandwidth bottlenecked as we are GPU bottlenecked, but we will take what performance we can get.
As you’d expect from such a mild overclock, the performance increase is very limited. Our overclocked GTX 970 FTW does close on GTX 980 even more, but even with this full overclock it won’t overcome the 3 SMM deficit.
Overall in all likelihood the GTX 970 FTW benefits more from the 10% increase in TDP than it does the clock speed increase. GTX 970 – and GM204 in general – clearly desires to be fed with more voltage and more power overall than what any NVIDIA approved card is going to see.
Power consumption and noise tick up, but only slightly. The limited 10% TDP increase means that the amount of power the card can draw and dissipate as heat only increases slightly. You aren’t getting much more performance, but you also aren’t getting much more noise.
Facebook
Twitter
RSS
155 Comments
View All Comments
Daniel Egger - Friday, September 26, 2014 - link
I love this card and am really excited. BUT if this cannot run on a single PCIe connector despite being 145W only that is a real deal breaker as I'm definitely not going to replace my excellent PSU just because some moron decided to plan in some additional headroom...Razorbak86 - Friday, September 26, 2014 - link
"single PCIe connector... excellent PSU"Good one. LOL
wetwareinterface - Saturday, September 27, 2014 - link
if your psu doesn't have 2 6 pin pci-e connectors it can't be that excellent. the lepa 500 watt is $36 and will run the 970 no problem and is a decent supply. i shudder to think what you have if it can't handle this card.Daniel Egger - Saturday, September 27, 2014 - link
An efficient quiet low power PSU from "be quiet!" for my HTPC which would be perfectly capable of dealing with the GTX 970. There're actually many PSUs which only have 1 PCIe connector because that's the norm not the execption that you'll need at most one. So I take it that all of you "shuddering" all day thinking of what horrible PSUs others might have, have their high end gaming rigs and don't give a crap about silence and/or efficiency -- good for you but maybe schedule a reality check sometime.maximumGPU - Sunday, September 28, 2014 - link
Yeah, but that "moron" who planned additional headroom is catering to the needs of the biggest market for these cards, who are gamers likely to overclock at some point. Not the niche need of using it in an htpc case with a low power single pcie psu.D. Lister - Monday, September 29, 2014 - link
You could use an adapter to get an extra 6-pin connector, which should work fine considering the low power draw of the 970. That is, if your excellent PSU has an HDD power dongle to spare.</snark>pixelstuff - Friday, September 26, 2014 - link
Looking at the 970 cards on Newegg, any idea why all brands have the 2x DVI, 1x DisplayPort configuration? While nVidia.com lists the 970 specs as having 3x DisplayPort, 1 DVI port.I was hoping to get a 970 with 3 display ports, so I'm wondering what is going on.
yefi - Friday, September 26, 2014 - link
The overclock on this is pretty weak. I get 1314Mhz core with a max boost of 1554Mhz with the MSI Frozr 970. I see reviewers hitting ~1500Mhz also.mr.techguru - Saturday, September 27, 2014 - link
It seems the ACX Cooler similar to the EVGA 760 ACX has a design/manufacturing flew even the 2.0 version has the pipelines vs GPU position flew ; after throughly reading the reviews & users feedback ( EVGA GeForce GTX 970 ACX has misaligned GPU vs heatpipes) : http://www.overclock.net/t/1514624/eteknix-possibl... and http://www.guru3d.com/news-story/evga-geforce-gtx-... and http://forums.evga.com/m/tm.aspx?m=2221919&p=1 and http://www.eteknix.com/evga-gtx-970-feature-manufa... Therefore I would rather go with another brand Like the Asus Strix Series ; MSI Gaming Series or the Gegabyte G1 Gaming Series .. Less Risk Especially the warranty is RMA. As soon they are available at Stock update asap to order one .. Meanwhile Reason why they did not show the PCB of the ACX 2.0 and they showed us the FTW. I was interested to purchase the ACX version but now In a dilemma since the issue has not been mentioned in a tech site they I usually always trust!bsim500 - Saturday, September 27, 2014 - link
Good review. Is there going to be a GTX 960 to fill the rather large gap between the GTX 970 and 750Ti?