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Intel Core i7 6950X vs i5 9600K

We compared two desktop CPUs: the 3 GHz Intel Core i7 6950X with 10-cores against the 3.7 GHz i5 9600K with 6-cores. On this page, you'll find out which processor has better performance in benchmarks, games and other useful information.

NanoReview Review

General overview and comparison of the processors
Single-Core Performance
Performance in single-threaded apps and benchmarks
Measure performance when all cores are involved
Power Consumption
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 9600K and 6950X
Advantages of Intel Core i7 6950X
  • Has 16 MB larger L3 cache size
  • Supports quad-channel memory
  • Has 4 physical cores more than the 9600K
Advantages of Intel Core i5 9600K
  • Newer - released 2 years and 4 months later
  • Unlocked multiplier
  • Consumes up to 32% less energy than the Core i7 6950X – 95 vs 140 Watt
  • 31% higher Turbo Boost frequency (4.6 GHz vs 3.5 GHz)
  • Includes an integrated GPU Intel UHD Graphics 630


Comparing the performance of CPUs in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
Passmark CPU (Single-Core)
Passmark CPU (Multi-Core)
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)


Full technical specification of Intel Core i7 6950X and i5 9600K


Vendor Intel Intel
Released May 30, 2016 October 8, 2018
Launch price 1723 USD 263 USD
Type Desktop Desktop
Codename Broadwell E Coffee Lake
Model number i7-6950X i5-9600K
Socket LGA-2011-3 LGA-1151
Integrated GPU No Intel UHD Graphics 630


Cores 10 6
Threads 20 6
Base Frequency 3 GHz 3.7 GHz
Turbo Boost Frequency 3.5 GHz 4.6 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 30x 37x
Bus Bandwidth - 8 GT/s
L1 Cache 32K (per core) 64K (per core)
L2 Cache 256K (per core) 256K (per core)
L3 Cache 25MB (shared) 9MB (shared)
Unlocked Multiplier No Yes


Fabrication Process 14 nm 14 nm
TDP 140 W 95 W
Max. temperature - 100°C

Memory support

Memory types DDR4-2133 DDR4-2666
Memory Size 128 GB 128 GB
Max. Memory Channels 4 2
Max. Memory Bandwidth - 41.6 GB/s
EEC Support No No


Official site Intel Core i7 6950X official page Intel Core i5 9600K official page
PCI Express Version 3.0 3.0
PCI Express Lanes 40 16
Instruction Set - SSE4.1, SSE4.2, AVX-2

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So which CPU will you choose: Intel Core i5 9600K or i7 6950X?