Power, Temperature, and Noise

As always, we'll take a look at power, temperature, and noise of the GTX 1660 Ti, though as a pure custom launch we aren't expecting anything out of the ordinary. As mentioned earlier, the XC Black board has already revealed itself in its RTX 2060 guise.

As this is a new GPU, we will quickly review the GeForce GTX 1660 Ti's stock voltages and clockspeeds as well.

NVIDIA GeForce Video Card Voltages
Model Boost Idle
GeForce GTX 1660 Ti 1.037V 0.656V
GeForce RTX 2060 1.025v 0.725v
GeForce GTX 1060 6GB 1.043v 0.625v

The voltages are naturally similar to the 16nm GTX 1060, and in comparison to pre-FinFET generations, these voltages are exceptionally lower because of the FinFET process used, something we went over in detail in our GTX 1080 and 1070 Founders Edition review. As we said then, the 16nm FinFET process requires said low voltages as opposed to previous planar nodes, so this can be limiting in scenarios where a lot of power and voltage are needed, i.e. high clockspeeds and overclocking. For Turing (along with Volta, Xavier, and NVSwitch), NVIDIA moved to 12nm "FFN" rather than 16nm, and capping the voltage at 1.063v.

GeForce Video Card Average Clockspeeds
Game GTX 1660 Ti EVGA
GTX 1660 Ti XC
RTX 2060 GTX 1060 6GB
Max Boost Clock
2160MHz
2160MHz
2160MHz
1898MHz
Boost Clock 1770MHz 1770MHz 1680MHz 1708MHz
Battlefield 1 1888MHz 1901MHz 1877MHz 1855MHz
Far Cry 5 1903MHz 1912MHz 1878MHz 1855MHz
Ashes: Escalation 1871MHz 1880MHz 1848MHz 1837MHz
Wolfenstein II 1825MHz 1861MHz 1796MHz 1835MHz
Final Fantasy XV 1855MHz 1882MHz 1843MHz 1850MHz
GTA V 1901MHz 1903MHz 1898MHz 1872MHz
Shadow of War 1860MHz 1880MHz 1832MHz 1861MHz
F1 2018 1877MHz 1884MHz 1866MHz 1865MHz
Total War: Warhammer II 1908MHz 1911MHz 1879MHz 1875MHz
FurMark 1594MHz 1655MHz 1565MHz 1626MHz

Looking at clockspeeds, a few things are clear. The obvious point is that the very similar results of the reference-clocked GTX 1660 Ti and EVGA GTX 1660 Ti XC are reflected in the virtually identical clockspeeds. The GeForce cards boost higher than the advertised boost clock, as is typically the case in our testing. All told, NVIDIA's formal estimates are still run a bit low, especially in our properly ventilated testing chassis, so we won't complain about the extra performance.

But on that note, it's interesting to see that while the GTX 1660 Ti should have a roughly 60MHz average boost advantage over the GTX 1060 6GB when going by the official specs, in practice the cards end up within half that span. Which hints that NVIDIA's official average boost clock is a little more correctly grounded here than with the GTX 1060.

Power Consumption

Idle Power Consumption

Load Power Consumption - Battlefield 1

Load Power Consumption - FurMark

Even though NVIDIA's video card prices for the xx60 cards have drifted up over the years, the same cannot be said for their power consumption. NVIDIA has set the reference specs for the card at 120W, and relative to their other cards this is exactly what we see. Looking at FurMark, our favorite pathological workload that's guaranteed to bring a video card to its maximum TDP, the GTX 960, GTX 1060, and GTX 1660 are all within 4 Watts of each other, exactly what we'd expect to see from the trio of 120W cards. It's only in Battlefield 1 do these cards pull apart in terms of total system load, and this is due to the greater CPU workload from the higher framerates afforded by the GTX 1660 Ti, rather than a difference at the card level itself.

Meanwhile when it comes to idle power consumption, the GTX 1660 Ti falls in line with everything else at 83W. With contemporary desktop cards, idle power has reached the point where nothing short of low-level testing can expose what these cards are drawing.

As for the EVGA card in its natural state, we see it draw almost 10W more on the dot. I'm actually a bit surprised to see this under Battlefield 1 as well since the framerate difference between it and the reference-clocked card is barely 1%, but as higher clockspeeds get increasingly expensive in terms of power consumption, it's not far-fetched to see a small power difference translate into an even smaller performance difference.

All told, NVIDIA has very good and very consistent power control here. and it remains one of their key advantages over AMD, and key strengths in keeping their OEM customers happy.

Temperature

Idle GPU Temperature

Load GPU Temperature - Battlefield 1

Load GPU Temperature - FurMark

Looking at temperatures, there are no big surprises here. EVGA seems to have tuned their card for high performance cooling, and as a result the large, 2.75-slot card reports some of the lowest numbers in our charts, including a 67C under FurMark when the card is capped at the reference spec GTX 1660 Ti's 120W limit.

Noise

Idle Noise Levels

Load Noise Levels - Battlefield 1

Load Noise Levels - FurMark

Turning again to EVGA's card, despite being a custom open air design, the GTX 1660 Ti XC Black doesn't come with 0db idle capabilties and features a single smaller but higher-RPM fan. The default fan curve puts the minimum at 33%, which is indicative that EVGA has tuned the card for cooling over acoustics. That's not an unreasonable tradeoff to make, but it's something I'd consider more appropriate for a factory overclocked card. For their reference-clocked XC card, EVGA could have very well gone with a less aggressive fan curve and still have easily maintained sub-80C temperatures while reducing their noise levels as well.

Compute & Synthetics Final Words
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  • PeachNCream - Friday, February 22, 2019 - link

    This article reads a little like that infamous Steve Ballmer developers thing except it's not "developers, developers, developers, etc" but "traditional, traditional, traditionally, etc." instead. Please explore alternate expressions. The word in question implies long history which is something the computing industry lacks and the even shorter time periods referenced (a GPU generation or two) most certainly lack so the overuse stands out like a sore thumb in many of Anandtech's publications. Reply
  • Oxford Guy - Saturday, February 23, 2019 - link

    How about the utterly asinine use of the word "kit" to describe a set of RAM sticks that simply snap into a motherboard?

    The Altair 8800 was a kit. The Heathkit H8 was a kit. Two sticks of RAM that snap into a board doth not a kit maketh.
    Reply
  • futurepastnow - Friday, February 22, 2019 - link

    A triple-slot card? Really, EVGA? Reply
  • PeachNCream - Friday, February 22, 2019 - link

    Yup, for 120W TDP of all things. But it's in the charts as a 2.75 slot width card so EVGA is probably hoping that no one understands how expansion slots actually would not permit the remaining .25 slot width to support anything. Reply
  • darckhart - Friday, February 22, 2019 - link

    lol this was my first thought upon seeing the photo as well. Reply
  • GreenReaper - Saturday, February 23, 2019 - link

    I suspect it was the cheapest way to get that level of cooling. A more compact heatsink-fan combo could have cost more.

    130W (which is the TDP here) is not a *trivial* amount to dissipate, and it's quite tightly packed.
    Reply
  • Oxford Guy - Saturday, February 23, 2019 - link

    I think all performance GPUs should be triple slot. In fact, I think the GPU form factor is ridiculously obsolete. Reply
  • Oxford Guy - Monday, February 25, 2019 - link

    Judging by techpowerup's reviews, though, the EVGA card's cooling is inefficient. Reply
  • eastcoast_pete - Friday, February 22, 2019 - link

    @Ryan and Nate: What generation of HDMI and DP does the EVGA card have/support? Apologize if you had it listed and I missed it. Reply
  • Ryan Smith - Friday, February 22, 2019 - link

    HDMI 2.0b, DisplayPort 1.4. Reply

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