CPU Comparison

Intel Core i7-6850K vs Intel Core i7-6900K

A side-by-side comparison of specs, performance and value. The Intel Core i7-6850K is a high-end desktop processor that occupies the middle tier of the Broadwell-E lineup. Engineered for demanding enthusiasts and professional creators, it features six cores and twelve threads, providing substantial parallel processing power. It operates at a base clock of 3.6 GHz and can boost up to 4.0 GHz using Intel Turbo Boost Max 3.0, ensuring snappy single-threaded performance when needed. Unlike the entry-level 6800K, the 6850K offers a full 40 PCIe 3.0 lanes, unlocking maximum expansion potential for quad-GPU setups or massive NVMe storage arrays. It utilizes the LGA 2011-v3 socket and supports quad-channel DDR4 memory, delivering up to 76.8 GB/s of bandwidth. With a 140-watt TDP, it is a power-hungry chip designed for robust cooling. Lacking integrated graphics, it targets users who rely on discrete GPUs, excelling in complex 3D rendering, heavy video editing, and intensive virtualization environments where PCIe lanes and memory bandwidth are critical bottlenecks.

Intel · Core i7
Intel Core i7-6850K
6C / 12T4 GHz140 W
8.2
Full review
Top pick
Intel · Core i7
Intel Core i7-6900K
8C / 16T4 GHz140 W
8.5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
High-End Desktop
High-End Desktop
Generation
Core i7 (Broadwell-E)
Core i7 (Broadwell-E)
Launched
2016
2016
Status
End-of-life
End-of-life
Codename
Broadwell-E
Broadwell-E
Series
Core i7
Core i7
Family
6th Generation
6th Generation
Predecessor
Intel Core i7-5930K
Intel Core i7-5960X
Successor
Intel Core i7-7820X
Intel Core i9-7820X

Specifications Compared

Cores & Clocks
Cores
6
8
Threads
12
16
Base Clock
3.6 GHz
3.2 GHz
Boost Clock
4 GHz
4 GHz
Cache & Power
L3 Cache
15 MB
20 MB
TDP
140 W
140 W
Architecture
Architecture
Broadwell-E
Broadwell-E
Process Node
14nm
14nm
Memory
Memory Type
DDR4
DDR4
Memory Speed
2400 MT/s
2400 MT/s
Memory Channels
Quad (4)
Quad (4)
Max Memory
128 GB
128 GB
Platform & I/O
Socket
Intel Socket 2011-3
Intel Socket 2011-3
PCIe Version
Gen 3
Gen 3
PCIe Lanes
40
40
Integrated GPU
None
None
Unlocked
Yes
Yes

Performance Compared

Productivity

Intel Core i7-6850K78

6 cores handle heavy rendering well, but lack modern IPC.

Intel Core i7-6900KBest85

8 cores handle heavy rendering excellently, but lack modern IPC.

Gaming

Intel Core i7-6850K68

Good for 60fps gaming, but single-core speed limits high-refresh performance.

Intel Core i7-6900K68

Good for 60fps gaming, but single-core speed limits high-refresh performance.

Virtualization

Intel Core i7-6850K85

40 PCIe lanes and 12 threads make it excellent for VMs.

Intel Core i7-6900KBest90

40 PCIe lanes and 16 threads make it perfect for VMs.

Efficiency

Intel Core i7-6850K40

140W TDP is power-hungry by modern standards.

Intel Core i7-6900K40

140W TDP is power-hungry by modern standards.

Specialized Performance

AI / ML

Intel Core i7-6850KLimited
  • No AI hardware
  • CPU inference is moderate due to core count
Intel Core i7-6900KLimited
  • No AI hardware
  • CPU inference is good due to core count

Content Creation

Intel Core i7-6850KExcellent
Premiere ProBlenderAutoCADDaVinci Resolve
Intel Core i7-6900KExcellent
Premiere ProBlenderAutoCADDaVinci Resolve

Gaming

Intel Core i7-6850KGood
  • Can handle modern games with a discrete GPU
  • Lower single-core speed limits high-refresh gaming
  • Great for multi-tasking while gaming
Intel Core i7-6900KGood
  • Can handle modern games with a discrete GPU
  • Lower single-core speed limits high-refresh gaming
  • Great for multi-tasking while gaming

Industry Impact

Gaming
Moderate
Moderate
Workstations
High
High
Content Creation
High
High
Virtualization
High
High

Best CPU by Use Case

4K Video Editing
Excellent
Excellent
3D Rendering
Excellent
Excellent
Multi-GPU Compute
Excellent
Virtual Machines
Excellent
Excellent
High-Refresh Gaming
Fair
Good
Streaming
Excellent

Target Audience

Gamers
Targeted
Content Creators
Targeted
Targeted
Developers
Targeted
Targeted
Workstation Users
Targeted
Targeted
Streamers
Targeted
Targeted
Office / Productivity
Students

Strengths & Weaknesses

Intel Core i7-6850K

Pros

  • 6 cores / 12 threads
  • Full 40 PCIe lanes
  • Quad-channel memory
  • Unlocked for overclocking

Cons

  • High 140W TDP
  • Older 14nm process
  • Lacks integrated graphics
  • Expensive on the used market
Intel Core i7-6900K

Pros

  • 8 cores / 16 threads
  • Full 40 PCIe lanes
  • Quad-channel memory
  • 20 MB L3 cache

Cons

  • High 140W TDP
  • Older 14nm process
  • Lacks integrated graphics
  • Expensive on the used market

Competitors & Alternatives

Intel Core i7-6850K

Intel Core i7-6900K

Our Verdict on Each

An excellent HEDT chip for its time, offering 40 PCIe lanes and strong multi-core performance, though outclassed by modern hardware.

Best for: Upgrading an X99 system for maximum PCIe expansion.

Read the full review

An incredible 8-core HEDT processor for its time, offering massive multi-threaded power, though modern mainstream CPUs now match or exceed it.

Best for: Upgrading an X99 system for maximum multi-core rendering.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i7-6850K or Intel Core i7-6900K?

Based on our editorial ratings, the Intel Core i7-6900K comes out ahead with a score of 8.5/10. That said, the best choice depends on your workload — check the spec and performance breakdown above for gaming, productivity and efficiency differences.

Do Intel Core i7-6850K and Intel Core i7-6900K use the same socket?

Yes — all of these CPUs use the Intel Socket 2011-3 socket, so they share compatible motherboards.

Which has more cores?

The Intel Core i7-6900K has the most cores. Core counts: Intel Core i7-6850K (6 cores), Intel Core i7-6900K (8 cores).

Which is faster in multi-core benchmarks?

The Intel Core i7-6900K posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-6850K (13,500), Intel Core i7-6900K (17,000). Benchmark figures are approximate and workload-dependent.