CPU Comparison

Intel Core i7-8670T vs Intel Core i7-8700B

A side-by-side comparison of specs, performance and value. The Intel Core i7-8670T is a low-power desktop processor engineered for small form factor PCs, AIO systems, and space-constrained environments where thermal dissipation is limited. Belonging to the 8th Gen Coffee Lake family, it distinguishes itself with a 35-watt thermal design power, significantly lower than standard desktop chips. Despite its power-saving orientation, it boasts six cores and twelve threads, delivering robust multitasking capabilities. The processor operates at a base frequency of 2.3 GHz and can boost up to 3.7 GHz, ensuring responsive performance for both everyday computing and demanding applications. Integrated UHD Graphics 630 allow it to handle basic display tasks without a discrete GPU, making it ideal for compact office machines. This low-TDP approach allows system builders to create quieter, cooler, and more energy-efficient desktops without heavily sacrificing the core count and multi-threaded performance necessary for modern productivity workloads and moderate content creation. Its ability to fit into Mini-ITX cases with minimal cooling requirements makes it a favorite for HTPC builders and corporate environments prioritizing energy savings.

Intel · Core i7
Intel Core i7-8670T
6C / 12T3.7 GHz35 W
8
Full review
Top pick
Intel · Core i7
Intel Core i7-8700B
6C / 12T4.6 GHz65 W
8.8
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Desktop
Desktop
Segment
Desktop Low Power
Desktop BGA
Generation
Core i7 (Coffee Lake)
Core i7 (Coffee Lake)
Launched
2018
2018
Status
End-of-life
End-of-life
Codename
Coffee Lake
Coffee Lake
Series
Core i7
Core i7
Family
8th Generation
8th Generation
Predecessor
Intel Core i7-7700T
Intel Core i7-7700B
Successor
Intel Core i7-9700T
Intel Core i7-10700B

Specifications Compared

Cores & Clocks
Cores
6
6
Threads
12
12
Base Clock
2.3 GHz
3.2 GHz
Boost Clock
3.7 GHz
4.6 GHz
Cache & Power
L3 Cache
12 MB
12 MB
TDP
35 W
65 W
Architecture
Architecture
Coffee Lake
Coffee Lake
Process Node
14nm
14nm
Memory
Memory Type
DDR4
DDR4
Memory Speed
2666 MT/s
2666 MT/s
Memory Channels
Dual (2)
Dual (2)
Max Memory
128 GB
128 GB
Platform & I/O
Socket
Intel Socket 1151
Intel BGA 1440
PCIe Version
Gen 3
Gen 3
PCIe Lanes
16
16
Integrated GPU
Yes
Yes
Unlocked
No
No

Performance Compared

Productivity

Intel Core i7-8670T85

Handles office tasks and multitasking effortlessly due to 6 cores.

Intel Core i7-8700BBest90

Handles compiling, rendering, and multitasking effortlessly.

Gaming

Intel Core i7-8670T60

Good for gaming when paired with a discrete GPU, though clock speeds limit high-refresh play.

Intel Core i7-8700BBest70

Good for gaming if paired with an eGPU or external monitor.

Virtualization

Intel Core i7-8670T80

Good for light VMs in a compact form factor.

Intel Core i7-8700BBest85

Great for running VMs in a compact server footprint.

Efficiency

Intel Core i7-8670TBest98

Exceptional efficiency, runs very cool and quiet.

Intel Core i7-8700B88

Optimized power delivery for BGA designs.

Specialized Performance

AI / ML

Intel Core i7-8670TLimited
  • No AI accelerators
  • Relies on CPU cores
Intel Core i7-8700BLimited
  • No AI hardware
  • 12 threads help with CPU inference

Content Creation

Intel Core i7-8670TGood
1080p Video EditingPhoto EditingGraphic Design
Intel Core i7-8700BVery Good
Final Cut ProLogic ProPremiere ProBlender

Gaming

Intel Core i7-8670TGood
  • Needs a discrete GPU for serious gaming
  • Lower base clock may bottleneck fast GPUs
  • Great for SFF gaming builds
Intel Core i7-8700BGood
  • Relies on eGPU or discrete GPU in chassis
  • UHD 630 only good for light games
  • CPU performance is excellent for gaming

Industry Impact

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

Best CPU by Use Case

Silent Office PC
Excellent
Home Theater PC
Excellent
Light Productivity
Very Good
Compact Gaming (with GPU)
Good
4K Video Editing
Fair
Very Good
Xcode Development
Excellent
Home Server
Excellent
Office Productivity
Excellent
Gaming (eGPU)
Good

Target Audience

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

Strengths & Weaknesses

Intel Core i7-8670T

Pros

  • Extremely low 35W TDP
  • Six cores for multitasking
  • Quiet operation capability
  • Good integrated graphics for media

Cons

  • Lower clock speeds
  • Locked multiplier
  • Harder to find on the used market
  • Not ideal for heavy workloads
Intel Core i7-8700B

Pros

  • Full desktop performance in BGA form
  • 6 cores / 12 threads
  • Excellent for compact systems
  • Good turbo boost speeds

Cons

  • Soldered, cannot be upgraded
  • Hard to find outside pre-builts
  • Locked multiplier
  • 14nm process is outdated

Competitors & Alternatives

Intel Core i7-8670T

Intel Core i7-8700B

  • AMD Ryzen 7 2700E

    Compact Desktop

    Rival
  • Rival
    Compare head-to-head
  • Intel Core i5-8500B

    Compact Desktop

    Rival
    Compare head-to-head
  • AMD Ryzen 7 2700U

    Mobile

    Rival
  • Intel Core i7-7700B

    Compact Desktop

    Rival
  • Intel Core i7-10700B
    Alt

    Successor with 2 more cores.

  • Mac Studio M1
    Alt

    Vastly superior performance and efficiency.

  • Intel NUC 12 Pro
    Alt

    Modern alternative with 12th Gen performance.

  • AMD Ryzen 7 5800H Mini PC
    Alt

    Better integrated graphics and efficiency.

  • Mac mini M2
    Alt

    Current generation, much faster.

Our Verdict on Each

An excellent choice for compact builds, offering six cores within a strict 35W TDP for silent operation and solid productivity performance.

Best for: Building a near-silent Mini-ITX PC for the living room or office.

Read the full review

A highly capable BGA processor that brought real desktop performance to compact systems like the 2018 Mac mini.

Best for: Purchasing a used 2018 Mac mini for a home server or dev machine.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i7-8670T or Intel Core i7-8700B?

Based on our editorial ratings, the Intel Core i7-8700B comes out ahead with a score of 8.8/10. 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, Intel Core i7-8670T or Intel Core i7-8700B?

For gaming, the Intel Core i7-8700B leads with a gaming performance score of 70/100 among Intel Core i7-8670T and Intel Core i7-8700B.

Which uses less power?

The Intel Core i7-8670T has the lowest rated TDP. Power draw across these chips: Intel Core i7-8670T (35 W), Intel Core i7-8700B (65 W).

Do Intel Core i7-8670T and Intel Core i7-8700B use the same socket?

No. They use different sockets (Intel Core i7-8670T: Intel Socket 1151, Intel Core i7-8700B: Intel BGA 1440), so each needs a compatible motherboard.

Which is faster in multi-core benchmarks?

The Intel Core i7-8700B posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-8670T (12,500), Intel Core i7-8700B (15,000). Benchmark figures are approximate and workload-dependent.