Home > CPU Comparisons > Core i7 8700K or Core i7 6950X: what's better?

Intel Core i7 8700K vs i7 6950X

We compared two desktop CPUs: the 3.7 GHz Intel Core i7 8700K with 6-cores against the 3.0 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.

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 Efficiency
The efficiency score of electricity consumption
NanoReview Final Score
Generic CPU rating

Key Differences

What are the key differences between 6950X and 8700K
Advantages of Intel Core i7 8700K
  • Unlocked multiplier
  • Consumes up to 32% less energy than the Core i7 6950X – 95 vs 140 Watt
  • Newer - released 1-year and 5-months later
  • 34% higher Turbo Boost frequency (4.7 GHz vs 3.5 GHz)
  • 24% faster in a single-core Geekbench v5 test - 1180 vs 952 points
  • 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 4 more physical cores

Benchmarks

Comparing the performance of CPUs in benchmarks
Cinebench R20 (Single-Core)
Cinebench R20 (Multi-Core)
4901
Passmark CPU (Single-Core)
2745
Passmark CPU (Multi-Core)
17104
Geekbench 5 (Single-Core)
Geekbench 5 (Multi-Core)
9446

Specifications

Full technical specification of Intel Core i7 8700K and i7 6950X

General

Vendor Intel Intel
Released October 5, 2017 May 30, 2016
Launch price 359 USD 1723 USD
Type Desktop Desktop
Codename Coffee Lake Broadwell E
Model number i7-8700K i7-6950X
Socket LGA-1151 LGA-2011-3
Integrated GPU Intel UHD Graphics 630 No

Performance

Cores 6 10
Threads 12 20
Base Frequency 3.7 GHz 3.0 GHz
Turbo Boost Frequency 4.7 GHz 3.5 GHz
Bus frequency 100 MHz 100 MHz
Multiplier 37x 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 -
ECC Support No No

Misc

Official site Intel Core i7 8700K 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 -

Cast your vote

Choose between two processors
0 (0%)
1 (100%)
Total votes: 1

Comments

So which CPU will you choose: Intel Core i7 6950X or i7 8700K?