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Intel 7th Generation Core i7 7700K Processor Review

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Intel 7th Generation Core i7 7700K Processor Testing:

To validate that level of performance delivered by Intel's Kaby Lake Core i7 7700K, I will be running it and its comparison products through OCC's test suite of benchmarks, which include both synthetic benchmarks and real-world applications. The gaming tests will also consist of both synthetic benchmarks and actual gameplay, in which we can see if similarly-prepared setups offer any performance advantages. The system will receive a fully updated, fresh install of Windows 10 Professional 64-bit edition, in addition to the latest chipset drivers for each board and GeForce drivers for the NVIDIA GTX 1080 8GB Founders Edition. To ensure as few variables as possible, all hardware will be tested at their stock speeds, timings, voltages, and latencies, unless otherwise stated. After stock speed testing, each processor will then be overclocked as much as possible, while still maintaining full stability.


Testing Setup: Intel Z270

  • Processors: Intel 7th Generation Core i7 7700K
  • CPU Cooling: Corsair H115i
  • Motherboard: MSI Z270 SLI Plus
  • Memory: G.Skill Ripjaws V 3600MHz 32GB
  • Video Card: NVIDIA GTX 1080 8GB Founders Edition
  • Power Supply: Corsair RM1000x
  • Hard Drive: Corsair Force GT 240GB SATA 3
  • Optical Drive: Lite-On Blu-Ray
  • Case: Corsair 780T
  • OS: Windows 10 Professional 64-bit


Testing Setup: Intel (Socket 1151)


Testing Setup: Intel (Socket 1150)


Testing Setup: AMD (Socket AM3+)



  • Intel Core i7 7700K: 101x49  4950MHz 

Overclocking the new 7th Generation Core i7 7700K is, for all intents and purposes, about the same as overclocking the 6th Generation Core i7 6700K. You can go full on and tune for the highest clock speed on all the cores for a heavy load, or you can tune for higher clock speeds on lower loads and back off a bit for the more intensive CPU tasks, such as encoding or working with an AVX load set. By using the AVX offset in the BIOS, you can get your screenshots and gain stability at both the top end and when you really need the CPU horsepower.

Out of the box, the the 7th Generation Core i7 7700K has a factory boost clock speed of 4500MHz. Pretty stout when you compare it to the 4.2GHz boost clock on the 6700K and a little less so impressive with the 4400MHz boost clock on the 4790K. While running the stock testing, I kept the fan and pump speeds on the H115i at the quiet preset in the Corsair Link control panel. Knowing I wanted to shoot for 5GHz on this chip without a dedicated water loop, I pushed the fan speed and pump speed up to the max values, started bumping the clock speed up with the multiplier applied, and the XMP profile set on the G.Skill modules. I was pleasantly surprised when the MSI board and Core i7 7700K booted right up at 5GHz with a small bump in voltage to 1.30v. This looked promising, until I started stability testing. I started pushing the voltage up and finally ran out of cooling performance at 1.4v on the core. Since 5GHz on all core was not going to fly, I dropped 50MHz off the max clock speed and started tuning down the voltage on the core until I could get the processor stable using 1.36v applied in the BIOS. At that point I was able to run the chip for eight hours of Prime95 while still staying below throttling temperatures. Pretty sweet!


Maximum Core Clock Speed:

Each CPU has been tested for stability at the listed overclocked speeds. These clock speeds will represent the level of performance shown by the overclocked scores in the testing.




  • Scientific & Data:
  1. Apophysis
  2. WinRAR
  3. Geekbench 4
  4. Bibble 5
  5. Office 2016
  6. POV-Ray 3.7
  7. ProShow Gold
  8. HandBrake 1.0
  9. Sandra 2016
  10. AIDA64
  11. Cinebench R15
  12. X.265 Benchmark
  13. PC Mark 8
  • Video:
  1. Tom Clancy's The Division
  2. Hitman (2016)
  3. 3DMark

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