EVGA has introduced a new iCX cooling and tuning technology for its GPUs that promises higher efficiency and better control compared to predecessors. The video cards feature multiple onboard thermal sensors and microcontrollers (MCUs) designed that enable users to precisely tune settings of their cards and monitor their state for potentially better performance, stability, and endurance.

Modern high-end graphics adapters have three heat sources: the GPU silicon itself, the memory chips, and the VRM circuitry. To overclock a video card successfully, one needs to ensure that none of these components overheats under the higher voltage. While modern GPU silicon has built-in temperature sensors, memory chips do not (GDDR5X chips have integrated temperature sensors, rare GDDR5 ICs do too) and VRM temperature cannot be monitored without using special tools as well. Motherboard manufacturers usually add onboard sensors for monitoring, and here EVGA is doing the same. Squeezing all the overclocking headroom from a graphics card may be complicated since it is not easy to determine which component is overheating due to the high load, and a typical response is to increase cooling to the whole card (which means increasing the speed of all the fans creating excessive noise). EVGA's new cooler design is meant to offer more control over what needs to be cooled.

EVGA’s iCX technology uses nine thermal sensors on the graphics card to monitor GPU, VRM and memory temperatures and then its Precision XOC software can make decisions regarding cooling the components that actually require it. In a bid to cool-down VRM, the application increases the speed of the fan on the right-hand-side of the card, whereas when the GPU and memory need some extra cooling, the board speeds up the left fan. Fan speeds are regulated independently with their own temperature/power curves and therefore do not produce excessive noise unless needed. Alternatively, users can manually regulate GPU and memory frequencies as well as fan speeds using the Precision XOC software, and the fans will react accordingly. The app allows to set power and temperature targets and even create profiles for different occasions.

In addition to the new PCB design and the Precision XOC software, the iCX package includes a new cooling system with redesigned heatsinks (which EVGA calls “purposefully-directed airflow chambers”). The latter now have small holes in their fins to make it easier for the air to pass through them. The heatsink fins are L-shaped to increase surface contact, and some fins are half open to maximize airflow. Finally, the cooler has a special thermal LED display system that reflects a combination value of the temperature of the GPU, memory and VRM, and can act as a visual aid to warn users of overheating (if the software does not do it for some reason).

EVGA will use its iCX cooling initially on variants of NVIDIA cards that feature its proprietary PCBs (e.g., FTW2, SC2, etc.), just like it uses the ACX-series coolers today. The initial family (see the tables for details) of add-in-boards with iCX includes three GTX 1080 parts, three GTX 1070 parts, and four GTX 1060 6GB/3GB cards.

EVGA GeForce GTX 1080 with iCX Technology
  08G-P4-6581-KR 08G-P4-6583-KR 08G-P4-6686-KR
Stream Processors 2560
Texture Units 160
ROPs 64
Core Clock (MHz) 1607 1708 1721
Boost Clock (MHz) 1733 1847 1860
Memory Capacity 8 GB
Clock 10 Gbps
TDP 180 W 180 W 215 W
Launch Date Q1 2017
Launch Price $639.99 $649.99 $679.99

As usual, some of EVGA’s AIBs come factory overclocked and may have an increased TDP when compared to NVIDIA's reference designs. Due to different frequencies and TDPs, all the cards have different PCB designs and different VRMs, but the key components of the iCX (sensors, MCUs, two fans, safety fuse, etc.) are present on all iCX cards.

EVGA currently sells two graphics cards with its iCX cooling and tuning technology: the EVGA GeForce GTX
($649.99) and the EVGA GeForce GTX 1070 SC2 GAMING iCX ($449.99). Those interested in other members of the new lineup may sign up for notification about their availability. Given that EVGA has already announced all the cards, they should hit the market in the coming weeks, but we are not sure whether all the remaining SKUs are going to arrive at the same time.

EVGA GeForce GTX 1070 with iCX Technology
  08G-P4-6571-KR 08G-P4-6573-KR 08G-P4-6676-KR
Stream Processors 1920
Texture Units 120
ROPs 64
Core Clock (MHz) 1506 1594 1607
Boost Clock (MHz) 1683 1784 1797
Memory Capacity 8 GB
Type GDDR5
Clock 8 Gbps
TDP 150 W 170 W 215 W
Launch Date Q1 2017
Launch Price $439.99 $449.99 $469.99

As for pricing, the addition EVGA’s iCX cooling will come at a small premium. The cheapest EVGA GeForce GTX 1080 with iCX will be priced at $639.99 ($40 above NVIDIA’s MSRP), whereas the lowest-cost EVGA GeForce GTX 1070 with iCX will be sold for $439.99 ($60 above MSRP). Prices for EVGA’s GeForce GTX 1060 boards with iCX were given at this time.

EVGA GeForce GTX 1060 with iCX Technology
  GTX 1060
GTX 1060
GTX 1060
GTX 1060
  06G-P4-6667-KR 06G-P4-6768-KR 03G-P4-6567-KR 03G-P4-6767-KR
Stream Processors 1280 1152
Texture Units 80 72
ROPs 48
Core Clock (MHz) 1607 1632 1607 1632
Boost Clock (MHz) 1835 1860 1835 1860
Memory Capacity 6 GB 3 GB
Type GDDR5
Clock 8 Gbps
TDP 120 W 150 W
Launch Date 1H 2017
Launch Price TBD TBD TBD TBD

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Source: EVGA

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  • Chaitanya - Wednesday, February 15, 2017 - link

    Another reason for Evga to hike prices of their already overpriced crap.
  • Murloc - Wednesday, February 15, 2017 - link

    you can buy the basic version.

    At least you're sure to get quality, reputation is worth $$$ to companies for a reason.
  • willis936 - Wednesday, February 15, 2017 - link

    You mean the basic version that has the thermal pads added the VRMs that increase the GPU temperature? My load temp increased a solid 10 degrees after I swapped out. When their cooler actually is working it's apparent that it's worst in show. Fix it but not without bumping the prices first!
  • justtryingtohelp - Wednesday, February 15, 2017 - link

    Hey willis936,
    If your GPU temps went up 10 degrees after the swap, I highly recommend that you repaste the GPU. The change in temperature that you describe could only be related to a direct-die heat sink issue. Be sure to not wiggle the heat sink too much when putting it back on, you're liable to remove some of the paste inadvertently.
  • willis936 - Wednesday, February 15, 2017 - link

    Yep. Did that. Twice. With differing amounts of NH-T1. The temps were so high I just did the advanced RMA. Same story with a card fresh out of the retail packaging.
  • Hxx - Wednesday, February 15, 2017 - link

    who says anything about quality with EVGA. Ive owned 2 cards from them with problems. One with a defective display port and the other overheating, both were RMAd for replacements. There is no more "quality" at EVGA as it is with the others.
  • JoeyJoJo123 - Wednesday, February 15, 2017 - link

    When I bought my GTX 970, the EVGA ACX 2.0 Superclocked was the lowest priced variant on the market. I didn't choose it because it was EVGA or because of the branding, I went ahead with the purchase because I saw the larger factory overclock and dual fan HSF as value added features over other GTX 970s at the same pricepoint at the time.

    Every company's offerings wax and wane in price depending on current pricing details. And sometimes, like in my case, the more expensive variants of the card may go down in price to match lower tier offerings of the same GPU.
  • Samus - Saturday, February 18, 2017 - link

    I don't see how this will actually result in a quieter cooler. If you have two fans and spin one slower, the sound density is still the same as if they were spinning at the same speed. Sound pressure is linear, anything quieter is outweighed by the louder sound-producing device.
  • r3loaded - Wednesday, February 15, 2017 - link

    Do the VRMs still explode?
  • BrokenCrayons - Wednesday, February 15, 2017 - link

    VRMs probably will be fine if you don't push the card out of Nvidia's factory clockspeed specifications or, if you're really concerned, a nice healthy underclock would take some pressure off them and give you a cooler running card overall. The 1080 is pretty fast so there's no reason to run it as high as even factory clocks.

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