CPU Comparison

Intel Core i7-8550U vs Intel Core i7-8705G

A side-by-side comparison of specs, performance and value. The Intel Core i7-8550U is an ultra-low power mobile processor launched in August 2017 as part of the 8th Generation Kaby Lake-U Refresh family. Designed for thin-and-light laptops, it marked a significant milestone by introducing 4 cores and 8 threads to the 15-watt TDP category, a substantial upgrade from the dual-core designs of previous generations. Built on Intel's 14nm process, it operates at a base clock of 1.8 GHz and can boost up to 4.0 GHz. The processor features 8MB of L3 cache, doubling the cache size of its 7th Gen predecessors. It integrates Intel UHD Graphics 620 for basic multimedia tasks and hardware-accelerated video decoding. While its low base clock limits performance under sustained multi-threaded loads, the aggressive turbo boost ensures snappy responsiveness for everyday productivity. The i7-8550U became one of the most popular ultrabook processors of its era, powering countless mainstream laptops and bringing true quad-core performance to the portable form factor.

Intel · Core i7
Intel Core i7-8550U
4C / 8T4 GHz15 W
7.5
Full review
Top pick
Intel · Core i7
Intel Core i7-8705G
4C / 8T4.1 GHz65 W
9
Full review

The Bottom Line

Overview & Launch

Brand
Intel
Intel
Market
Mobile
Mobile
Segment
Mobile
Mobile
Generation
8th Gen Core i7
8th Gen Core i7
Launched
2017
2018
Status
Active
End-of-life
Codename
Kaby Lake-R
Kaby Lake G
Series
Core i7
Core i7
Family
Kaby Lake
Kaby Lake-G
Predecessor
Intel Core i7-7500U
Intel Core i7-7700HQ
Successor
Intel Core i7-8565U
Intel Core i7-1065G7

Specifications Compared

Cores & Clocks
Cores
4
4
Threads
8
8
Base Clock
1.8 GHz
3.1 GHz
Boost Clock
4 GHz
4.1 GHz
Cache & Power
L3 Cache
8 MB
8 MB
TDP
15 W
65 W
Architecture
Architecture
Kaby Lake-R
Kaby Lake G
Process Node
14nm
14nm
Memory
Memory Type
DDR4
DDR4
Memory Speed
2400 MT/s
2400 MT/s
Memory Channels
Dual (2)
Dual (2)
Max Memory
32 GB
32 GB
Platform & I/O
Socket
Intel BGA 1356
Intel BGA 2270
PCIe Version
PCIe 3.0
PCIe 3.0
PCIe Lanes
12
8
Integrated GPU
Yes
Yes
Unlocked
No
No

Performance Compared

Productivity

Intel Core i7-8550U70

Snappy for office applications but throttles under sustained load.

Intel Core i7-8705GBest75

Strong CPU performance for everyday tasks and light content creation.

Gaming

Intel Core i7-8550U35

Only suitable for very light 2D or older games due to UHD 620 graphics.

Intel Core i7-8705GBest80

Excellent 1080p gaming performance thanks to the Radeon Vega M GL graphics.

Virtualization

Intel Core i7-8550U50

Can run one light VM, but limited by 15W TDP.

Intel Core i7-8705GBest60

Capable but limited by 4 cores.

Efficiency

Intel Core i7-8550UBest85

Excellent idle efficiency and good battery life for ultrabooks.

Intel Core i7-8705G75

HBM2 memory and integrated design improve power efficiency compared to discrete GPUs.

Specialized Performance

AI / ML

Intel Core i7-8550ULimited
  • No dedicated AI hardware
  • Relies on CPU for basic inference
Intel Core i7-8705GModerate
  • Radeon GPU can be used for OpenCL acceleration
  • No dedicated AI hardware

Content Creation

Intel Core i7-8550UFair
Basic PhotoshopLight Photo EditingAudio Production
Intel Core i7-8705GGood
Premiere ProPhotoshopBlenderOBS Studio

Gaming

Intel Core i7-8550UPoor
  • Relies on Intel UHD Graphics 620
  • Can run esports titles on low settings
  • Not suitable for AAA gaming
Intel Core i7-8705GVery Good
  • Equivalent to GTX 1050 Ti
  • Can run most AAA games at 1080p medium
  • VR-ready

Industry Impact

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

Best CPU by Use Case

Document Editing
Excellent
Web Browsing
Excellent
Media Consumption
Very Good
Excellent
Light Multitasking
Very Good
Video Editing
Poor
Good
1080p Gaming
Excellent
VR Gaming
Very Good
3D Rendering
Good

Target Audience

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

Strengths & Weaknesses

Intel Core i7-8550U

Pros

  • Brought 4 cores to 15W ultrabooks
  • Good single-core burst performance
  • Excellent battery life for basic tasks
  • Large 8MB L3 cache

Cons

  • Low base clock of 1.8 GHz
  • Throttles under sustained multi-threaded load
  • Basic UHD 620 integrated graphics
  • 14nm process is outdated
Intel Core i7-8705G

Pros

  • Unique Intel-AMD partnership
  • Radeon RX Vega M GL graphics
  • 4GB of HBM2 memory
  • Excellent 1080p gaming in small form factors

Cons

  • Driver support has ended
  • 65W TDP requires active cooling
  • Soldered and non-upgradable
  • Limited to 8 PCIe lanes for the GPU

Competitors & Alternatives

Intel Core i7-8550U

  • AMD Ryzen 7 2700U

    Mobile

    Rival
  • AMD Ryzen 5 2500U

    Mobile

    Rival
  • Intel Core i5-8250U

    Mobile

    Rival
  • Intel Core i7-7500U

    Mobile

    Rival
  • AMD Ryzen 5 3500U

    Mobile

    Rival
  • Intel Core i7-8565U
    Alt

    Whiskey Lake refresh with higher clocks and better sustained performance.

  • AMD Ryzen 5 4500U
    Alt

    Much better multi-core performance and efficiency.

  • 11th Gen offers massive IPC and graphics improvements.

    Compare head-to-head
  • Vastly superior performance and battery life.

    Compare head-to-head
  • AMD Ryzen 7 4700U
    Alt

    8-core alternative with excellent battery life.

Intel Core i7-8705G

  • AMD Ryzen 7 2700U

    Mobile

    Rival
  • Intel Core i7-7700HQ

    Mobile

    Rival
  • AMD Ryzen 7 3750H

    Mobile

    Rival
  • Compare head-to-head
  • AMD Ryzen 5 3550H

    Mobile

    Rival
  • 10th Gen successor with integrated Iris Plus graphics.

    Compare head-to-head
  • AMD Ryzen 7 4800H
    Alt

    Much better CPU and GPU performance in a similar form factor.

  • Modern alternative with excellent efficiency and integrated graphics.

    Compare head-to-head
  • Intel Core i7-1165G7
    Alt

    Better driver support and modern Xe graphics.

  • AMD Ryzen 7 5800U
    Alt

    Superior performance and battery life for thin-and-light laptops.

Our Verdict on Each

A pioneering 15W processor that brought 4 cores to ultrabooks, offering solid multitasking, though its low base clock limits sustained performance.

Best for: If you are considering a laptop with the Core i7-8550U today, it should only be purchased in the used or refurbished market at a significant discount. It remains a capable processor for everyday tasks like web browsing, document editing, and media consumption. The 4-core design ensures it handles basic multitasking without major slowdowns. However, its 14nm architecture and 15W TDP mean it will struggle with any sustained heavy workloads like video editing or modern gaming. Avoid this processor if you need to run demanding software or if battery life is your absolute top priority, as newer chips are far more efficient. It is best suited for budget-conscious buyers or students who need a cheap, reliable secondary machine for schoolwork and everyday use.

Read the full review

A revolutionary processor that combined Intel and AMD silicon to deliver exceptional gaming performance in compact form factors.

Best for: If you are considering a device with the Intel Core i7-8705G, you are likely looking at a used NUC or a thin-and-light gaming laptop like the Dell XPS 15 9575. This processor remains a highly capable solution for 1080p gaming and VR, offering performance comparable to a GTX 1050 Ti in an incredibly compact form factor. It is an excellent choice for budget gamers or media creators who need a portable machine with dedicated graphics. However, driver support from Intel for the Radeon component has ended, meaning you may encounter compatibility issues with the latest games. Avoid this processor if you want a future-proof system or need the latest API support. It is best purchased at a discount for its unique hardware design and solid 1080p performance.

Read the full review

Frequently Asked Questions

Which is better, Intel Core i7-8550U or Intel Core i7-8705G?

Based on our editorial ratings, the Intel Core i7-8705G comes out ahead with a score of 9/10. 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 i7-8550U or Intel Core i7-8705G?

For gaming, the Intel Core i7-8705G leads with a gaming performance score of 80/100 among Intel Core i7-8550U and Intel Core i7-8705G.

Which uses less power?

The Intel Core i7-8550U has the lowest rated TDP. Power draw across these chips: Intel Core i7-8550U (15 W), Intel Core i7-8705G (65 W).

Do Intel Core i7-8550U and Intel Core i7-8705G use the same socket?

No. They use different sockets (Intel Core i7-8550U: Intel BGA 1356, Intel Core i7-8705G: Intel BGA 2270), so each needs a compatible motherboard.