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Posted 20 hours ago

Thermal Grizzly - KryoSheet (24x12x0,2mm) - Graphene Thermal Pads - Highest Thermal Conductivity - Alternative to High Performance Thermal Paste CPU/GPU/PS4/PS5/Xbox

£10.94£21.88Clearance
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A cover made of anodized aluminum is magnetically attached to this. 13 RGB LEDs integrated into the cover illuminate the side acrylic glass and the G1/4-inch threads. The cover can be mounted so that the RGB connection cable can be routed up or down. The RGB lighting is connected via a 3-pin ARGB header (+5V/DATA/GND). In the end, both Kryonaut models performed the best right after application, with Kryonaut slightly outperforming its Extreme counterpart. However, after the “curing” process, both thermal pastes lost some performance, showing a difference of about 2 K compared to the initial test. We tested the thermal paste immediately after application/cooling assembly and again in the next day, after a few “heat-cool” cycles, alternating between 40 minutes of idle and 40 minutes of stress in AIDA. The idea is to verify whether the thermal paste has any curing time, i.e., whether there is a difference in performance between the freshly applied product and the one that has undergone some thermal cycles. Die Graphen-Wärmeleitpads der Thermal Grizzly KryoSheet-Serie können hervorragend als Alternative für Wärmeleitpasten aus dem gehobenen Leistungssegment genutzt werden. Ähnlich wie die Carbonaut-Pads besitzen sie eine anpassungsfähige Oberfläche bei sehr hoher Wärmeleitfähigkeit. Im Vergleich zu Carbonaut-Pads bietet KryoSheet als High-End-Produkt eine deutlich höhere Wärmeleitfähigkeit. The goal of these tests is to determine whether the Thermal Grizzly Kryonaut and Kryonaut Extreme thermal pastes can deliver good performance, and how they compare to other thermal interface alternatives that have been previously tested. The following texts contain more details about the methodology and how the tests were conducted. Testing results:

It's worth noting that the thermal paste used in this comparison was six months old, and a freshly applied thermal paste might yield better results. However, the study was intentionally conducted in this manner, as users don't frequently reapply thermal paste. Over time, the advantage of thermal paste could diminish. This increased thermal conductivity is not only due to the choice of material, but also to the innovative manufacturing process. KryoSheet does not contain any liquid components and is therefore not subject to normal ageing as is the case with traditional thermal paste. Drying out is not possible. COOLER: XPG Levante 240 mm (Thank you, XPG!), Thermal Grizzly Carbonaut, IC Graphite, GD900-1, Deepcool Z3, Cooler Master Mastergel Maker, Thermal Grizzly Kryonaut, Thermal Grizzly Kryonaut Extreme. Due to the optimized thermal conductivity of KryoSheet compared to Carbonaut, the focus of the graphene pads is on enthusiast products in the end customer segment as well as on industrial applications. Examples of the use of KryoSheet include refurbishing used graphics cards and notebooks/laptops. Both versions of the Thermal Grizzly Kryonaut performed very well when tested right after application, with the Kryonaut slightly outperforming its “extreme” counterpart and surpassing the Cooler Master Mastergel Maker by almost 2 K in this scenario. However, after some thermal cycles, also known as “curing time”, both versions of Kryonaut showed a decrease in performance, with an increase of about 2 K in delta temperature. This might not be very promising for long-term use in regular situations.

They're The Same!?

In the above table, the max temps are lower, however that is just one data point in time. The average temperatures over a 10-20 minute idle period are a lot lower with the KryoSheet than they are with the thermal paste by approximately 3 degrees Celsius. Compared to Carbonaut pads, KryoSheet, as a high-end product, offers significantly higher thermal conductivity. This increased thermal conductivity is not only due to the choice of materials, but also to the innovative manufacturing process. KryoSheet contains no liquid components and is therefore not subject to normal aging, as is the case with traditional thermal paste. Drying out is not possible. The test system featured an undervolted Ryzen 7 5800x3D processor, with a reduction of -25 mV on the two best cores and -30 mV on the remaining six cores. Cooling was provided by an EK AIO unit within a Lian Li A4H2O case. Upon the initial assembly of this system, Gelid GC-Extreme thermal paste was applied in an "X" pattern 6 months ago. Ambient room temperature was maintained within the range of 21.7°C to 22.2°C (71°F to 72°F). Once the system was booted, all startup programs were closed, and the system was allowed to idle for 20 minutes. Temperature measurements, including average and maximum Tdie, CPU Die (average), CPU CCD1, Core Temperatures, and L3 temperatures, were recorded using HWinfo version 7.42. Subsequently, the system underwent three consecutive Cinebench r23 Multicore tests (each lasting approximately 10 minutes), during which the aforementioned temperature metrics plus the Cinebench scores, and the Average Effective Frequency of the CPU were documented. A 10-20 minute idle period between runs was implemented to ensure consistent scores (within 20 points), and the highest score was recorded. The information from HWinfo was recorded 1 minute into the run so as to stabilize the loop and ended half way through the last run. The easy application and longevity of the KryoSheet pads are plus points here. The long durability of the pads means that they are maintenance-free. In addition to applications in industry, for example in the construction of servers, this is also an advantage in domestic PC construction or in the OEM sector. Because the pads do not have to be replaced at regular intervals like thermal paste, there is no need for extensive maintenance.

Thermal Grizzly is introducing a new product called KryoSheet , which is one of the company's advertised "High Performance Cooling Solutions". The graphene thermal pads of the Thermal Grizzly KryoSheet series can be used excellently as an alternative to thermal pastes from the higher performance segment. Similar to the Carbonaut pads, they have an adaptable surface with very high thermal conductivity. There is limited data available on long term performance due to how new KryoSheet is. Additionally, different CPUs may exhibit varying results. While KryoSheet worked well with the 5800x3D, it may not perform as effectively with denser CPUs like the 5900x or 5950. It's also essential to consider how GPUs perform and whether there's a difference between water-cooled and air-cooled builds.The graphs below shows the delta T (ΔT), which is the difference between the CPU temperature (in this case) and the ambient temperature, thereby eliminating the ambient temperature from the equation. The plan moving forward is to continue benchmarking this system monthly or bi-monthly to assess whether the performance remains consistent. Another test will be conducted on a different build featuring a custom loop cooling system with a 3080 GPU and a 5900x CPU in a Lian Li q58 case with a 360mm radiator. This will provide further insights into the applicability of KryoSheet. The graphene thermal pads of the Thermal Grizzly KryoSheet series can be used as an excellent alternative for thermal compounds from the higher performance segment. Similar to Carbonaut pads, they have a conformable surface with very high thermal conductivity. Compared to Carbonaut pads, KryoSheet as a high-end product offers significantly higher thermal conductivity.

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