Processors
Core i7-7700K | Core i7-7700 | Core i7-7600K | Core i7-7600 |
Motherboard and memory
As the basis of our test platform, we use both the seventh (Kaby Lake) and the sixth (Skylake) generation of the core CPUs MSIs Z270 Gaming M7. In contrast, an MSI Z97 Gaming 7 is used for the Haswell Refresh processors used for comparison purposes and an MSI 970 Gaming AM3+ is used for the AMD processors.
MSI's Z270 Gaming M7 offers a wealth of features, including a simplified auto overclocking feature for beginners and dual firmware with both an easy-to-use layout for beginners, as well as a wider and much more comprehensive layout for savvy users with numerous additional functions for overclockers. For the Gaming M7, MSI also uses ASMedia and implements Lightning USB 3.1 and an additional M.2 slot, so that there are a total of three accommodation options for the latest SSD format.
On the memory side, we rely on two modules with 8 GByte each from the G.Skills Ripjaws series (DDR4-3400) for the Z270 platform, while the Z97 system uses 8 GByte large bars from Crucial (DDR3L-1866).
Thanks to a powerful Enermax Liqtech 240 compact water cooling system, which is equipped with two Silent Wings 2 fan, even in the test runs with overclocked processors, compliance with an operating temperature that is considered safe can be guaranteed: In the present equipment, the compact water cooling used allows a thermal power dissipation of up to 300 watts is more than sufficient for all overclocking scenarios suitable for everyday use. However, we have also used the cooling solution in combination with Intel's Power Thermal Utility (PTU), which can push any processor to the absolute limit at the factory standard clock speeds.
Overclocking and stability
Overclocking should be about finding the right balance between a high clock frequency and a reasonable operating voltage, so that there is no negative impact on the life of the CPU. For this reason, we have also tried to operate the processors with settings that make sense for continuous operation. These should be easily recreated by our readers and do not require the heads of the CPU to get to a daring 7 GHz at a murderous 2.5 volts.
As a stability test, we rely on an FPU, CPU and cache load test of AIDA64 for several hours. Prime95 is then used for several hours to ensure that the selected overclocking settings prove stable in continuous operation.
Power consumption | |
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Measurement: | non-contact DC measurement direct voltage measurement on the power supply Infrared monitoring in real time |
Measuring instruments: | Rohde & Black HMO 3054 (500 MHz multi-channel oscillograph with memory function) 2x Rohde & Schwarz HZO50, current pliers adapter 2x Rohde & Schwarz HZO50, current pliers adapter (1 mA to 30 A, 100 KHz, DC) 2x Rohde & Schwarz HZ355, probe divider (10:1, 500 MHz) 1x Rohde & Black HMC 8012 (digital multimeter with memory function) 1x Optris PI640, Infrared Camera + PI Connect |
Watercooling: | AiO: Enermax Liqtech 240 Fan: 2x 12 cm be quiet! Silent Wings 2 |
- 1 - Einleitung
- 2 - Z270, Optane, Overclocking-Tools und HD Graphics 630
- 3 - Test-Setup und Overclocking
- 4 - Benchmarks: Rendering und Office
- 5 - Benchmarks: Workstation-Anwendungen
- 6 - Benchmarks: DTP und Multimedia
- 7 - Benchmarks: Gaming und integrierte Grafik (iGP)
- 8 - Core i7-7700K: Leistungsaufnahme & Temperaturen
- 9 - Core i7-7700: Leistungsaufnahme & Temperaturen
- 10 - Core i5-7600K: Leistungsaufnahme & Temperaturen
- 11 - Core i5-7600: Leistungsaufnahme & Temperaturen
- 12 - Unterschiedliche Chipqualität und ihre Folgen
- 13 - Fazit
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