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Raijintek THEMIS Evo CPU Cooler Review

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Test System and Benchmark Results of the Raijintek THEMIS Evo

Ambient temperature monitored at case intake and temperature Delta was used. All case and heat sink fans were benchmarked with fan control settings disabled and running at 100% unless otherwise specified. Intel integrated video is utilized to eliminate additional ambient heat source from discrete graphics cards. Temperatures are averaged (last minute) from individual core temperature results monitored by AIDA64 after 15 minutes. FPU load average is used to simulate worst case scenario load levels similar to Intel Burn Test or OCCT, results marked “0″ means thermal limit was reached and the CPU was throttled and thus the results were discarded. Stock settings have all power saving features enabled in the motherboard with Vcore set static to 1.1V and set to “Balanced” in the OS. Overclocked settings have Vcore voltage manually set to 1.2V at 4.2GHz and 4.4GHz with EIST disabled. All tests were taken at least three times to get the final result.

Processor Intel Core i7-4770K (Retail)
Motherboard ASUS Maximus VI Gene Z87 Motherboard
Memory Patriot Viper 3 “Black Mamba” Low-Profile 2x8GB DDR3 Memory
Drive OCZ Agility 4 256GB SSD
Video Card Intel Integrated Graphics
Thermal Compound Noctua NT-H1
Case Cooler Master HAF XB (open air test-bench mode, all fans removed)
Power Supply Corsair HX850W
Operating System Windows 7 x64 Pro
Comparison Heatsinks Raijintek THEMIS Evo
Be Quiet Shadow Rock 2 Gamer Storm Lucifer Silverstone AR01 Noctua NH-U12S GELID GX-7 Rev.2 SLIM
Fan Size (mm) 120 120 140 120 120 120 (slim)
Max fan RPM 1800 1600 1400 2200 1500 1800
Fan Bearing Type Sleeve Rifle Hydro Sleeve SSO2 Hydro Dynamic Bearing
Direct-Heatpipe YES NO NO YES NO NO
Heatpipe Thickness (mm) 8 8 6 8 6 6
Heatpipe Count 4 4 6 3 5 7
Price (in USD) 40 50 45 35 65 65


Results marked “0″ means thermal limit was reached and the CPU was throttled


Intel Core i7-4770K 4.2GHz OC Benchmark Results

Intel Core i7-4770K 4.4GHz OC Benchmark Results

Fan Sound Profile:

Not exactly the most silent fan in our comparison group but then again, it was never advertised as such. It is the second loudest, behind the Silverstone AR02 which runs up to 2200 RPM.  The fan moves a lot of air but is thankfully devoid of any annoying high-pitched or chopping noises at full-load.  A high-pitch noise is audible upon fan initialization however, albeit it only happens briefly so it is not a major concern.

Performance Summary:

With a very powerful fan, thermal performance is outstanding and was able to come very close to the more expensive Noctua NH-U12S and the larger Deepcool Lucifer on stock and overclocked loads. Since it comes with a PWM fan, the fan speed can be relaxed when top performance is not priority.

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Ron Perillo

Ron is a non-binary tech writer that presently identifies as a reviewer but is currently transitioning toward modding.

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