Thermal Paste
GC-Extreme Thermal Paste, 1 g
4.6 2,957 ratingscounted across all 2 pack sizes of this compound
GC-Extreme in a 1 g syringe: 8.5 W/mK of the long-standing enthusiast compound, enough for one build.
$7.99
In stock
Sold and shipped by an authorized retail partner. Price shown was current when this page was built.
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- GC-EX1G
- Category
- Thermal Paste
GC-Extreme is the compound this brand is known for, and a gram is the amount a single machine needs. It carries a thermal conductivity of 8.5 W/mK at a density of 3.73 g per cubic centimeter, works from -45 C to +180 C, and has spent long enough on enthusiast benches to have a settled reputation rather than a launch one.
The numbers behind the name
A conductivity of 8.5 W/mK puts this compound well above the paste that arrives pre-applied on a stock cooler, and the stated operating range from -45 C to +180 C covers everything from a cold garage to a chip that is being pushed hard. The density of 3.73 g per cubic centimeter tells you it is heavily filled, which is where the conductivity comes from.
A gram is a build, not a bench
This size suits one processor with room for a second attempt. If you rebuild a machine every few years it is the right purchase, because there is no advantage in owning more paste than you will ever apply. Shops and frequent tinkerers are better served by the larger syringe.
Application on a heavily filled compound
A dense paste is stiffer than a thin one and benefits from a moment of patience. Let the syringe reach room temperature, apply a modest amount at the center, and clamp evenly rather than tightening one screw at a time. The pressure will spread it further than it looks like it should.
Overclocking is where the margin shows
Under a stock cooler at stock clocks almost any decent compound will do. The difference between compounds shows up when the heat flux is high and the cooler is already good, which is exactly the situation this one was formulated for. It will not create headroom that the cooler does not have.
