OCCT vs ZenStates

OCCT8.4Visit ZZenStates7.8Visit

Higher score OCCT #5 in PC Overclocking Software 8.4/10 Free plan Free plan✓ 1 of 4 features Visit OCCT

vs

Z ZenStates #8 in PC Overclocking Software 7.8/10 Free plan Free plan✓ 1 of 4 features Visit ZenStates

• OCCT fits best

  Free stability testing with Intel tuning

• ZenStates fits best

  Manual AMD per-core overclocking

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Side by side

Feature	OCCT 8.4/10 Visit ↗	ZZenStates 7.8/10 Visit ↗
At a glance
Editor score	8.4	7.8
Ranking	#5 in PC Overclocking Software	#8 in PC Overclocking Software
Best for	Free stability testing with Intel tuning	Manual AMD per-core overclocking
Pricing model	Free plan + paid	Free
Starting price	—	Free plan
Free plan	✓	✓
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows, Linux	Windows
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business
Features OCCT 1/4 · ZenStates 1/4
CPU tuning	✓	✓
Memory tuning	—	Not checked yet
Motherboard controls	Not checked yet	Not checked yet
Automatic overclocking	Not checked yet	Not checked yet
Specs
Supported platforms	Windows & linux	Windows
Hardware scope	Intel	Amd
Our review
Pros	Tests CPU, memory, GPU, VRAM, storage, and power loads Includes monitoring, benchmarking, reports, and stability certificates Offers Intel per-core frequency controls for system tuning	Per-core and all-core frequency controls VID, boost-limit, and FIT scalar settings Free, open-source Windows application
Cons	The free Personal edition is for personal use only Memory tuning is not included as a category capability Professional pricing is available on request	Windows-only platform support Focused on compatible AMD processors Requires WinRing driver and .NET Framework 4.0
Our verdict	OCCT is desktop software for testing PC stability, monitoring hardware, benchmarking performance, and validating systems. It is designed for gamers, PC enthusiasts, overclockers, system integrators, IT administrators, manufacturers, and… Read the review →	ZenStates is a free, open-source Windows desktop utility for technically experienced users tuning supported AMD Ryzen processors. It provides a graphical application and service that interact with AMD’s System Management Unit, with… Read the review →

Strengths and trade-offs

• OCCT — where it wins

  • Tests CPU, memory, GPU, VRAM, storage, and power loads
  • Includes monitoring, benchmarking, reports, and stability certificates
  • Offers Intel per-core frequency controls for system tuning

  Where it doesn't

  • The free Personal edition is for personal use only
  • Memory tuning is not included as a category capability
  • Professional pricing is available on request

• ZenStates — where it wins

  • Per-core and all-core frequency controls
  • VID, boost-limit, and FIT scalar settings
  • Free, open-source Windows application

  Where it doesn't

  • Windows-only platform support
  • Focused on compatible AMD processors
  • Requires WinRing driver and .NET Framework 4.0

• OCCT8.4/10 · Free plan

  A broad PC testing suite with free personal use and paid reporting features.

  Visit OCCTFull verdict →
• ZZenStates7.8/10 · Free plan

  A free, open-source Windows tool for manual AMD per-core and all-core tuning.

  Visit ZenStatesFull verdict →