Quick Verdict
A dependable 6-core CPU for basic computing, though its lack of Hyper-Threading and older architecture make it unsuitable for modern upgrades.
Overview
Launch
2018
Status
End-of-lifeGeneration
8th Gen (Coffee Lake)
Market
Desktop
The Intel Core i5-8550 is a 6-core, 6-thread desktop processor from Intel's 8th Gen Coffee Lake family, targeting mainstream desktop environments with a focus on power efficiency.
Designed for everyday computing, the Core i5-8550 features a 3.0 GHz base clock and 4.3 GHz turbo boost.
It includes 9 MB of L3 cache and Intel UHD 630 graphics. With a 65 W TDP, it is power-efficient but lacks Hyper-Threading, limiting its multi-threaded capabilities compared to modern alternatives.
Specifications
Performance
Adequate for office tasks but slow for heavy rendering.
Limited by the lack of Hyper-Threading.
Struggles with modern gaming unless paired with a low-end GPU.
Excellent power efficiency for daily tasks.
- •Low clock speeds limit performance
- •Lacks HT for modern engines
- •Only suitable for e-sports titles
- •Not suitable for AI workloads
Architecture
14nm
Process Node
Coffee Lake
Codename
6C / 6T
Core Config
9 MB
L3 Cache
65 W
TDP
Architecture Overview
The Intel Core i5-8550 is fabricated on the company's highly refined 14 nanometer process node, utilizing the Coffee Lake microarchitecture. This generation marked a pivotal shift for Intel's mainstream lineup, as it represented the first time the Core i5 desktop segment received six physical cores, moving away from the quad-core designs of previous generations. However, Intel intentionally disabled Hyper-Threading on this specific silicon, limiting it to six concurrent threads. The processor employs a ring bus architecture that connects the cores to 9 MB of shared L3 smart cache, ensuring low-latency data access for everyday applications. The integrated memory controller natively supports dual-channel DDR4 memory up to 2666 MT/s, providing adequate bandwidth for the era. For graphics, it houses the Intel UHD Graphics 630, a basic integrated solution suitable for display output and hardware-accelerated media decoding. The processor communicates with the chipset via a DMI 3.0 link and provides 16 PCIe 3.0 lanes for discrete expansion cards.
- Two additional physical cores
- Larger L3 cache
Key Highlights
- Low power consumption
- Good for basic office tasks
- Includes integrated graphics
- Affordable on the used market
- No Hyper-Threading
- Low base clock
- End-of-life platform
- Limited multi-threading capability
History
The Core i5-8550 was launched on September 1, 2018, as a quiet addition to the 8th Generation Coffee Lake lineup. During this period, Intel was aggressively expanding its core counts to counter AMD's Ryzen series. While the initial Coffee Lake launch in late 2017 focused on high-profile SKUs like the i5-8600K, the i5-8550 emerged later as a binning optimization.
It allowed Intel to utilize fully functional six-core dies that didn't meet the higher voltage or frequency requirements of the i5-8600. This processor was primarily directed at system integrators and OEMs, providing a cost-effective six-core option for pre-built desktop PCs. Its release coincided with Intel's efforts to maximize 14nm wafer yields during a time of severe manufacturing constraints.
As the market rapidly moved toward higher thread counts, the 6-core, 6-thread configuration of the i5-8550 quickly became outdated, leading to its eventual end-of-life status as Intel shifted focus to 9th Gen and beyond.
Improvements over Previous Generation
- Two additional physical cores
- Larger L3 cache
Alternatives & Competitors
Should You Buy It?
Not Recommended for the right buyer
Cheap upgrade for an older LGA 1151 system
Avoid if…
- Building a new PC
- Doing video editing
- Gaming
Use Cases
Interesting Facts
Launched almost a year after the initial Coffee Lake release.
Features a part number SR3XF.
Officially supports DDR4-2666 memory.
Uses the FC-LGA1151 package.
Has a max turbo boost of 4.3 GHz.
Features Intel VT-d for basic virtualization.
Does not support PCIe 4.0.
Lacks an unlocked multiplier for overclocking.
Designed primarily for OEM channels rather than retail.
Shares the same die as the higher-clocked i5-8600.
People Also Ask
Does the Core i5-8550 have Hyper-Threading?
No, it has 6 cores and 6 threads.
Can the Core i5-8550 be overclocked?
No, it features a locked multiplier.
What socket does the Core i5-8550 use?
It uses the Intel LGA 1151 socket.
Does the Core i5-8550 come with a cooler?
OEM versions may include a cooler, but retail box variants are rare.
What memory speed does the Core i5-8550 support?
It officially supports DDR4-2666 MT/s.
Is the Core i5-8550 good for gaming?
Only for very light or older games; it lacks threads for modern titles.
Does the Core i5-8550 have integrated graphics?
Yes, it has the Intel UHD 630.
What is the TDP of the Core i5-8550?
The TDP is 65 Watts.
What is the max turbo frequency of the Core i5-8550?
The max turbo is 4.3 GHz.
Is Windows 11 supported on the Core i5-8550?
Officially, Intel does not support Windows 11 on this CPU.
Frequently Asked Questions
What generation is the Core i5-8550?
It is an 8th Generation Coffee Lake processor.
Can I play 4K video on the Core i5-8550?
Yes, the UHD 630 can hardware decode 4K video.
What is the cache size of the Core i5-8550?
It has 9 MB of L3 cache.
Does the Core i5-8550 support PCIe 4.0?
No, it supports PCIe 3.0 only.
What motherboards are compatible with the Core i5-8550?
Intel 300-series motherboards (H310, B360, Z390, etc.).
Is the Core i5-8550 unlocked?
No, the multiplier is locked.
Does it support ECC memory?
No, it does not support ECC memory.
What is the base clock speed?
The base clock is 3.0 GHz.
Can I use DDR3 memory with this CPU?
No, it requires DDR4 memory.
Is the Core i5-8550 good for streaming?
No, it lacks the threads and clock speed for smooth streaming.