Quick Verdict
An excellent choice for compact builds, offering six cores within a strict 35W TDP for silent operation and solid productivity performance.
Overview
Launch
Sep 1st, 2018
Status
End-of-lifeGeneration
Core i7 (Coffee Lake)
Market
Desktop
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.
The Intel Core i7-8670T is a Coffee Lake processor featuring 6 cores and 12 threads. With a base clock of 2.3 GHz and a boost of 3.
7 GHz, it balances performance and power. Its 35W TDP makes it ideal for Mini-ITX builds and AIOs where cooling and noise are concerns.
Specifications
Performance
Handles office tasks and multitasking effortlessly due to 6 cores.
Good for light VMs in a compact form factor.
Good for gaming when paired with a discrete GPU, though clock speeds limit high-refresh play.
Exceptional efficiency, runs very cool and quiet.
- •Needs a discrete GPU for serious gaming
- •Lower base clock may bottleneck fast GPUs
- •Great for SFF gaming builds
- •No AI accelerators
- •Relies on CPU cores
Architecture
14nm
Process Node
Coffee Lake
Codename
6C / 12T
Core Config
12 MB
L3 Cache
35 W
TDP
Architecture Overview
Built on Intel's 14nm Coffee Lake architecture, the Core i7-8670T utilizes a silicon design optimized for low-power desktop environments. It integrates six physical cores with twelve threads via Intel's Hyper-Threading technology, a significant upgrade for the T-series segment. The architecture includes 12 MB of SmartCache L3 memory, ensuring efficient data sharing across cores. It supports dual-channel DDR4 memory at 2666 MT/s, providing adequate bandwidth for integrated graphics and system responsiveness. The processor connects via LGA 1151 socket and offers 16 PCIe 3.0 lanes, sufficient for a discrete GPU or high-speed NVMe storage. The 'T' suffix architecture focuses on strict power gating and lower voltage curves compared to the 65W variants. This allows the chip to maintain a 35W TDP while still delivering burst frequencies via Intel Turbo Boost 2.0. The integrated UHD 630 graphics operate dynamically, handling hardware-accelerated video decoding and multi-display outputs efficiently within the low power envelope.
CPU Design
6 cores, 12 threads, optimized for 35W.
Memory Subsystem
Dual-channel DDR4-2666.
PCIe & I/O
16 PCIe 3.0 lanes.
Overclocking
Locked multiplier.
- Two additional cores
- Four additional threads
- Larger L3 cache
Key Highlights
- Extremely low 35W TDP
- Six cores for multitasking
- Quiet operation capability
- Good integrated graphics for media
- Lower clock speeds
- Locked multiplier
- Harder to find on the used market
- Not ideal for heavy workloads
History
The Core i7-8670T launched in September 2018 as part of Intel's broader rollout of low-power Coffee Lake desktop processors. This release came shortly after the initial 8th Gen desktop launch, addressing the specific needs of the small form factor and All-in-One (AIO) markets. Previously, Intel's low-TDP desktop offerings were often dual-core or quad-core, struggling to meet the demands of modern multitasking in compact chassis.
With AMD's Ryzen architecture pushing higher core counts across all segments, Intel responded by expanding their Coffee Lake lineup to include 35W variants with up to six cores. The i7-8670T was a direct result of this competitive pressure, bringing hexa-core processing to slim desktops. It allowed manufacturers to build sleek, quiet AIOs and mini PCs capable of handling intensive office workloads, light photo editing, and 4K media consumption without the thermal output of standard 65W or 95W processors, redefining expectations for compact desktop performance.
Improvements over Previous Generation
- Two additional cores
- Four additional threads
- Larger L3 cache
Alternatives & Competitors
Should You Buy It?
Recommended for the right buyer
Building a near-silent Mini-ITX PC for the living room or office.
Avoid if…
- High-refresh-rate gaming
- Heavy 3D rendering
- Overclocking
Use Cases
Interesting Facts
The 'T' suffix designates a low-power desktop processor.
It consumes half the power of the standard i7-8700.
Can be passively cooled with the right case.
Includes Intel TSX-NI instructions.
Features UHD Graphics 630.
Supports Intel Optane Memory.
Uses the LGA 1151 socket.
Released in September 2018.
Has a tCASE max of 72°C.
Max turbo frequency is 3.7 GHz.
People Also Ask
What does the T mean in i7-8670T?
It stands for a low-power desktop variant with a 35W TDP.
Can the i7-8670T be overclocked?
No, it has a locked multiplier.
Is the i7-8670T good for gaming?
It's okay for 60fps gaming with a GPU, but not for high refresh rates.
Does the i7-8670T come with a cooler?
OEMs usually provide coolers, but it often requires a separate purchase for retail.
Can I use i7-8670T without a GPU?
Yes, it has Intel UHD Graphics 630.
What is the TDP of i7-8670T?
35 Watts.
What socket does i7-8670T use?
LGA 1151.
Does it support DDR4?
Yes, up to 2666 MT/s.
How many cores does it have?
6 cores and 12 threads.
Is it good for a home server?
Excellent, due to low power and 12 threads.
Frequently Asked Questions
Does i7-8670T support Windows 11?
Officially no, but it can run it with workarounds.
Can it run 4K video?
Yes, the UHD 630 handles 4K playback smoothly.
What is the max temperature?
The tCase max is 72°C.
Does it support ECC memory?
No, it does not support ECC.
Is it faster than an i5-8400?
Slightly slower in bursts, but similar in multi-core.
What chipsets support it?
Intel 300 series chipsets.
Does it have Hyper-Threading?
Yes, 6 cores / 12 threads.
Can it fit in a Mini-ITX case?
Yes, it's perfect for SFF builds.
Does it have AES-NI?
Yes.
What is the L3 cache size?
12 MB.