Cryorig has introduced its low-profile CPU cooling system for small form-factor PCs that can dissipate up to 125 W. Featuring a 47-mm z-height and a 97-mm depth/width, the Cryorig C7 G is among the smallest coolers for higher-end processors available today. To make C7 G's high performance possible, Cryorig had to apply graphene coating on the heatsink.

As owners of SFF PCs demand higher-performance components, cooling designers are creating low-profile coolers rated for TDP levels of 95 W of higher. To maximize efficiency of such devices, manufacturers use copper for heatsinks, many heat pipes, and large fans. Cryorig decided to go one step further and applied graphene coating to the radiator’s fins. Thermal conductivity of graphene is in the range of 3000 - 5000 W/mK at room temperature (according to Graphene-Info), which is considerably higher than thermal conductivity of aluminum (250 W/mK at 25ºC) or copper (401 W/mK at 25ºC), so applying it on the fins could theoretically improve cooling performance.

Just like regular Cryorig’s C7, the model C7 G features four 6-mm heat pipes and a 97-mm PWM fan with 11 curved blades that rotates at a speed of 600 – 2500 RPM producing airflow of up to 40.5 CFM as well as rated for a maximum load noise level of 30 dB(A).

As far as compatibility is concerned, the Cryorig C7 G cooling system can work with all modern platforms from AMD and Intel, including the latest AM4 and LGA1155 sockets.

The Cryorig C7 G Specifications
Material Copper base, graphene covered fins
Dimension with Fan 97 mm (W) × 47 mm (H) × 97 mm (D)
Heat Pipes 4 × 6 mm heat pipes
Air Pressure ~ 1.36 mm H2O
Air Flow (CFM)  40.5 CFM
Speed  600 ~ 2500 RPM
Noise up to 30.2 dBA
Type of Bearing ?
Life Expectancy ?
Weight 673.5 grams
Compatibility AMD AM4/FM2+/FM2/FM1/AM3+/AM3/AM2+/AM2
Intel LGA1151/1150/1155/1156

Cryorig’s C7 G cooler will be available in Japan starting September 28 for ¥9,960 without sales tax ($92.50), which is certainly higher than average for an air cooler. Evidently, graphene coating is expensive and dissipating up to 125 W using a cooling system featuring a 47 mm z-height is a unique capability, so the price can be justified. The unit is already listed on the company’s website, so its launch in other countries is imminent.

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Source: Cryorig (via Hermitage Akihabara)

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  • peevee - Tuesday, October 1, 2019 - link

    Gaming kiddies did not learn physics.
  • Slash3 - Thursday, October 3, 2019 - link

  • Kilnk - Sunday, November 10, 2019 - link

    This is too thick for laptops. This is meant to be used in small form factor cases such as the Dan Case.
  • Jorgp2 - Friday, September 27, 2019 - link

    A black coated surface will release heat better than a shiny metal one.

    That doesn't change the fact that this cooler is shit though, they're just rehashing it to save tooling on releasing an actual new product.
  • peevee - Tuesday, October 1, 2019 - link

    In a CPU cooler heat release by radiation is insignificant compared to direct contact with air. For example, the fins will radiate the heat right into the fins next to them, so even fins do not make sense for heat release by radiation.
    Besides, black also accepts external radiation better.
  • Kilnk - Sunday, November 10, 2019 - link

    This cooler is the best performance cooler for its size. This is meant to be used in small form factor cases with low clearance. When you don't know what you're talking about, don't.
  • Kilnk - Sunday, November 10, 2019 - link

    I will add that this cooler can comfortably cool a stock 3900x. It's far from being shit.
  • Kilnk - Sunday, November 10, 2019 - link

    Optimum Tech has compared the C7 cu with the C7G and there is no difference in thermal performance. However, the C7G won't oxidize while the C7 cu will with time thus the C7 cu will lose performance while the C7G won't.
  • jtd871 - Thursday, September 26, 2019 - link

    Expect to pay extra for this in NAMER as Cryorig has apparently abandoned North American marketplaces. 3rd party sellers on Amazon are currently charging $135 for the basic C7 (I bought one in 2017 for $30), which is a nice markup even on an import.
  • Operandi - Thursday, September 26, 2019 - link

    This has already been tested by NotFromConcentrate; the graphene coating does nothing to improve the performance of the heatsink.

    From what I remember of the video the science behind theory is sound but the application of the graphene is not done properly and in the level of precision that would aid in improving thermal performance.

    Stick with Noctua if you want the best performing low profile heatsink.

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