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Intel Core i7 9700K vs i7 6950X

We compared two desktop CPUs: the 3.6 GHz Intel Core i7 9700K with 8-cores against the 3 GHz i7 6950X with 10-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
Performance
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 6950X and 9700K
Advantages of Intel Core i7 9700K
  • 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
  • 40% higher Turbo Boost frequency (4.9 GHz vs 3.5 GHz)
  • Includes an integrated GPU Intel UHD Graphics 630
Advantages of Intel Core i7 6950X
  • Has 13 MB larger L3 cache size
  • Supports quad-channel memory
  • Has 2 physical cores more than the 9700K

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
4939
Passmark CPU (Single-Core)
2951
Passmark CPU (Multi-Core)
20109
Geekbench 5 (Single-Core)
1237
Geekbench 5 (Multi-Core)
9384

Specs

Full technical specification of Intel Core i7 9700K and i7 6950X

General

Vendor Intel Intel
Released October 8, 2018 May 30, 2016
Launch price 385 USD 1723 USD
Type Desktop Desktop
Codename Coffee Lake Broadwell E
Model number i7-9700K i7-6950X
Socket LGA-1151 LGA-2011-3
Integrated GPU Intel UHD Graphics 630 No

Performance

Cores 8 10
Threads 8 20
Base Frequency 3.6 GHz 3 GHz
Turbo Boost Frequency 4.9 GHz 3.5 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 36x 30x
Bus Bandwidth 8 GT/s -
L1 Cache 64K (per core) 32K (per core)
L2 Cache 256K (per core) 256K (per core)
L3 Cache 12MB (shared) 25MB (shared)
Unlocked Multiplier Yes No

Power

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

Memory support

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

Misc

Official site Intel Core i7 9700K official page Intel Core i7 6950X official page
PCI Express Version 3.0 3.0
PCI Express Lanes 16 40
Instruction Set SSE4.1, SSE4.2, AVX-2 -

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Comments

So which CPU will you choose: Intel Core i7 6950X or i7 9700K?