Raijintek THEMIS Evo CPU Cooler Review
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 |
| PWM | YES | YES | YES | YES | YES | YES |
| Fan Bearing Type | Sleeve | Rifle | Hydro | Sleeve | SSO2 | Hydro Dynamic Bearing |
| SLIM | NO | NO | NO | YES | YES | YES |
| 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 |
Benchmarks:
Results marked “0″ means thermal limit was reached and the CPU was throttled
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.
