CPU Comparison

Intel Core i7-6850K vs Core i7-3930K

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
Intel · Core i7
Core i7-3930K
6C / 12T3.8 GHz130 W
8.2
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)
2nd Gen (Sandy Bridge-E)
Launched
2016
2011
Status
End-of-life
End-of-life
Codename
Broadwell-E
Sandy Bridge-E
Series
Core i7
Core i7
Family
6th Generation
Sandy Bridge-E
Predecessor
Intel Core i7-5930K
Intel Core i7-990X
Successor
Intel Core i7-7820X
Intel Core i7-4930K

Specifications Compared

Cores & Clocks
Cores
6
6
Threads
12
12
Base Clock
3.6 GHz
3.2 GHz
Boost Clock
4 GHz
3.8 GHz
Cache & Power
L3 Cache
15 MB
12 MB
TDP
140 W
130 W
Architecture
Architecture
Broadwell-E
Sandy Bridge-E
Process Node
14nm
32nm
Memory
Memory Type
DDR4
DDR3
Memory Speed
2400 MT/s
DDR3-1600
Memory Channels
Quad (4)
Quad (4)
Max Memory
128 GB
64 GB
Platform & I/O
Socket
Intel Socket 2011-3
LGA 2011
PCIe Version
Gen 3
PCIe 3.0
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.

Core i7-3930K78

6 cores and 12 threads hold up well for content creation.

Gaming

Intel Core i7-6850KBest68

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

Core i7-3930K60

Still decent for modern gaming, though single-core is slower than new CPUs.

Virtualization

Intel Core i7-6850K85

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

Core i7-3930K85

Excellent for VMs with 12 threads and quad-channel memory.

Efficiency

Intel Core i7-6850KBest40

140W TDP is power-hungry by modern standards.

Core i7-3930K28

130W TDP and 32nm process mean it runs hot and uses power.

Specialized Performance

AI / ML

Intel Core i7-6850KLimited
  • No AI hardware
  • CPU inference is moderate due to core count
Core i7-3930KLimited
  • No AI hardware
  • PCIe 3.0 is okay for basic inference cards

Content Creation

Intel Core i7-6850KExcellent
Premiere ProBlenderAutoCADDaVinci Resolve
Core i7-3930KVery Good
Adobe Premiere ProBlenderCinema 4DAfter Effects

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
Core i7-3930KGood
  • 6 cores help with modern titles
  • Overclocks well to improve single-core
  • PCIe 3.0 supports modern GPUs

Industry Impact

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

Best CPU by Use Case

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

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
Core i7-3930K

Pros

  • 6 cores and 12 threads
  • 40 PCIe 3.0 lanes
  • Massive 12MB L3 cache
  • Excellent overclocker

Cons

  • High 130W TDP
  • 32nm process is inefficient
  • No integrated graphics
  • Obsolete X79 platform

Competitors & Alternatives

Intel Core i7-6850K

Core i7-3930K

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
Core i7-3930KSituational

A legendary HEDT CPU that brought 6 cores to the masses. Still capable for budget workstations today.

Best for: Budget 6-core workstation build

Read the full review

Frequently Asked Questions

Which is faster for gaming, Intel Core i7-6850K or Core i7-3930K?

For gaming, the Intel Core i7-6850K leads with a gaming performance score of 68/100 among Intel Core i7-6850K and Core i7-3930K.

Which uses less power?

The Core i7-3930K has the lowest rated TDP. Power draw across these chips: Intel Core i7-6850K (140 W), Core i7-3930K (130 W).

Do Intel Core i7-6850K and Core i7-3930K use the same socket?

No. They use different sockets (Intel Core i7-6850K: Intel Socket 2011-3, Core i7-3930K: LGA 2011), so each needs a compatible motherboard.

Which is faster in multi-core benchmarks?

The Intel Core i7-6850K posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-6850K (13,500), Core i7-3930K (13,000). Benchmark figures are approximate and workload-dependent.