CPU Comparison

Core i7-860 vs Core i7-875K

A side-by-side comparison of specs, performance and value. The Intel Core i7-860 is a mainstream desktop processor launched in September 2009, based on the 45nm Lynnfield architecture. Operating at a base frequency of 2.8 GHz and boosting up to 3.466 GHz via Turbo Boost, it offered an excellent price-to-performance ratio for its time. It features 4 cores and 8 threads, supported by an 8 MB L3 cache. Utilizing the LGA 1156 socket, it brought the Nehalem microarchitecture to a wider audience. Unlike Bloomfield, Lynnfield integrates a dual-channel DDR3 memory controller and 16 PCIe 2.0 lanes directly on the CPU, reducing platform costs. It lacks an integrated GPU, requiring a discrete graphics card. With a 95W TDP, it was relatively easy to cool. The i7-860 became a highly popular choice for gamers and enthusiasts in 2009, offering near-920 performance at a lower price point. Today, it is obsolete but fondly remembered as a workhorse CPU that defined the early Core i7 era.

Intel · Core i7
Core i7-860
4C / 8T3.466 GHz95 W
8
Full review
Top pick
Intel · Core i7 K-Series
Core i7-875K
4C / 8T3.6 GHz95 W
8.5
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop Mainstream
Desktop Enthusiast
Generation
Core i7 (Lynnfield)
Core i7 (Lynnfield)
Launched
2009
2010
Status
End-of-life
End-of-life
Codename
Lynnfield
Lynnfield
Series
Core i7
Core i7 K-Series
Family
1st Gen Core i7
1st Gen Core i7
Predecessor
Core 2 Quad Q9550
Core i7-870
Successor
Core i7-2600
Core i7-2600K

Specifications Compared

Cores & Clocks
Cores
4
4
Threads
8
8
Base Clock
2.8 GHz
2.933 GHz
Boost Clock
3.466 GHz
3.6 GHz
Cache & Power
L3 Cache
8 MB
8 MB
TDP
95 W
95 W
Architecture
Architecture
Lynnfield
Lynnfield
Process Node
45nm
45nm
Memory
Memory Type
DDR3
DDR3
Memory Speed
1333 MT/s
1333 MT/s
Memory Channels
Dual (2)
Dual (2)
Platform & I/O
Socket
Intel Socket 1156
Intel Socket 1156
PCIe Version
Gen 2
Gen 2
PCIe Lanes
16
16
Integrated GPU
None
None
Unlocked
No
Yes

Performance Compared

Productivity

Core i7-86035

Still usable for basic tasks but lacks modern speed.

Core i7-875KBest38

Identical to i7-870 at stock, highly responsive when OC'd.

Gaming

Core i7-86035

Handles old games well but bottlenecks modern titles.

Core i7-875KBest37

Handles old games well but bottlenecks modern titles.

Virtualization

Core i7-86040

Good for legacy home servers and VMs.

Core i7-875KBest42

Good for legacy VMs.

Efficiency

Core i7-860Best45

95W TDP is acceptable for 45nm, but poor by modern standards.

Core i7-875K40

95W TDP, but power draw increases heavily when overclocked.

Specialized Performance

AI / ML

Core i7-860None
  • No AI hardware
  • Unsuitable for modern inference
Core i7-875KNone
  • No AI hardware
  • Unsuitable for modern inference

Content Creation

Core i7-860Legacy
Legacy PremierePhotoshop3D Rendering
Core i7-875KLegacy
Legacy PremierePhotoshop3D Modeling

Gaming

Core i7-860Legacy
  • PCIe 2.0 only
  • No AVX support
  • Requires discrete GPU
Core i7-875KLegacy
  • PCIe 2.0 only
  • No AVX support
  • Requires discrete GPU

Industry Impact

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

Best CPU by Use Case

1080p Gaming
Very Good (for 2009)
Video Encoding
Very Good
Programming
Excellent
Office Work
Overkill
Overclocking
Excellent
High-End Gaming
Very Good (for 2010)
Video Editing
Very Good
Benchmarking
Excellent

Target Audience

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

Strengths & Weaknesses

Core i7-860

Pros

  • Great value in 2009
  • 8MB L3 cache
  • Strong turbo boost
  • Quad-core with HT

Cons

  • Obsolete platform
  • No integrated graphics
  • Locked multiplier
  • Lacks AVX
Core i7-875K

Pros

  • Unlocked multiplier
  • 8MB L3 cache
  • High turbo clock
  • Historical significance

Cons

  • Obsolete platform
  • No integrated graphics
  • No stock cooler
  • DDR3 only

Competitors & Alternatives

Core i7-860

Core i7-875K

Our Verdict on Each

Core i7-860Situational

A legendary CPU that brought Nehalem architecture to the mainstream, offering immense value in 2009, though obsolete today.

Best for: Maintaining a legacy retro gaming rig.

Read the full review
Core i7-875KSituational

A groundbreaking CPU that brought unlocked multipliers to the mainstream, making overclocking accessible. Still obsolete but legendary.

Best for: Legacy LGA 1156 overclocking project.

Read the full review

Frequently Asked Questions

Which is better, Core i7-860 or Core i7-875K?

Based on our editorial ratings, the Core i7-875K 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.

Which is faster for gaming, Core i7-860 or Core i7-875K?

For gaming, the Core i7-875K leads with a gaming performance score of 37/100 among Core i7-860 and Core i7-875K.

Do Core i7-860 and Core i7-875K use the same socket?

Yes — all of these CPUs use the Intel Socket 1156 socket, so they share compatible motherboards.