Test Setup and Temperature Benchmarks
Two test systems were employed here to give a look at what you might expect from a current-gen AMD and Intel CPU. With only higher end parts to test, the model numbers won’t be consistent with the budget build idea. Obviously a $500 PC isn’t going to be build around a $320 Core i7 4770K processor, but it is actually possible to build around AMD’s $185 high-end 7850K APU (if no discrete GPU is used). Regardless, the results will still show these coolers’ differences.
|AMD System||Intel System|
|Processor||AMD A10-7850K APU||Intel Core i7 4770K|
|Motherboard||ASRock FM2A88X-ITX+||ASUS Maximus VI GENE|
|Memory||G.Skill Sniper 8GB 2133MHz||G.Skill Sniper 8GB 2133MHz|
|Graphics Card||(APU Graphics)||NVIDIA GeForce GTX 770 (OEM)|
|Storage||Plextor M5 Pro 128GB SSD||OCZ Vertex 460 120GB SSD|
|Power Supply||Corsair CX 750W Modular PSU||Corsair CX 750W Modular PSU|
|OS||Windows 7 Professional SP1 64-bit||Windows 7 Professional SP1 64-bit|
Temperature testing was done at both stock and overclocked loads, and measurements were made using RealTemp and HWMonitor. The room temps were a constant 18 C. For load temps Prime95 was used, with the max stress torture test run for a minimum of 10 minutes before the readings were taken.
Temperature Benchmarks - AMD
The Seidon 120V was very impressive for a budget liquid cooler here, keeping the 7850K at only 40 C at a full load. The Hyper 212 EVO was right behind it at just 41 C at load. The stock cooler’s temps are not particularly impressive, as one might expect, but not bad – though the benefit of aftermarket cooling can clearly be seen here with the 13-14 degree decrease in temps with the Cooler Master offerings.
With the overclocked workload the Seidon 120V again leads the 212 EVO by just 1 degree C, and both coolers saw temps rise by 10 C over stock clocks. Excellent considering that 1.4V was required to keep this 4.40GHz overclock stable. The stock AMD cooler managed to keep the overclocked APU from overheating, but at 65 C it was pushing a lot of warm air down against the power delivery and memory on the motherboard.
Temperature Benchmarks - Intel
The 120V and Hyper 212 were pretty evenly matched with the stock 4770K, but the Seidon 120V managed lower load temps by 2 C. The results from the stock Intel cooler started off looking promising…and the temps kept climbing and climbing under load. 82 C is not exactly acceptable from a stock workload, though in Intel’s defense Prime95 is pegging the Haswell CPU at 100% on each core. Much better results were possible with the Intel cooler manually set to 100% fan speed, which lowered the temps a full 10 C to 72 C under load. This was not a typical situation, as the PWM fan is not going to reach 100% by default, so the PWM result was given on the chart.
The Hyper 212 EVO comes out on top here at the 4.50GHz OC load, and it's a good result for both aftermarket coolers given the punishing workload of the test and the hefty overclock on this Haswell CPU.
Note: There is no result for the Intel stock cooler here after the poor showing in the stock frequency test, so this 4.50GHz overclock was not attempted with Intel’s default solution.