CPU Comparison
Intel Core i5-11600K vs Intel Core i7-8670
A side-by-side comparison of specs, performance and value. The Intel Core i5-11600K is a 6-core, 12-thread desktop processor launched in March 2021. Based on the Rocket Lake architecture, it utilizes the Cypress Cove microarchitecture on Intel's 14nm process. Featuring a base clock of 3.9 GHz and a turbo boost of 4.9 GHz, it targets mainstream gamers and enthusiasts. Unlike the KF variant, it includes Intel UHD Graphics 750. With a 125W base TDP, it offers unlocked overclocking and 20 PCIe 4.0 lanes, bringing next-gen connectivity to the LGA 1200 platform.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Capable multi-threaded performance for typical productivity applications.
12 threads make quick work of office and compiling tasks.
Gaming
Handles modern games easily at 1080p and 1440p when paired with a mid-to-high-end GPU.
Handles modern games easily when paired with a mid-to-high-end GPU.
Virtualization
Adequate for light virtualization tasks, though limited to 6 cores.
Capable of running multiple VMs smoothly.
Efficiency
Power consumption is high under load due to the 14nm process pushing high clocks.
Good efficiency within the 65W envelope.
Specialized Performance
AI / ML
- Supports AVX-512 and DLBoost for basic AI workloads.
- Not ideal for large-scale AI training.
- No AI hardware
- Standard CPU inference
Content Creation
Gaming
- High single-core boost clocks ensure smooth gameplay.
- PCIe 4.0 support benefits newer GPUs.
- QuickSync technology accelerates video encoding.
- Won't bottleneck RTX 3060 or RX 6600 class GPUs
- High turbo boost ensures smooth frame times
- Great for 60Hz and 144Hz gaming
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Strong single-core performance for gaming
- Integrated UHD 750 graphics for troubleshooting
- Unlocked multiplier for overclocking
- PCIe 4.0 support
- Backwards compatible with 400-series motherboards
Cons
- High power consumption under load
- 14nm process runs hot compared to competitors
- Limited to 6 cores while competitors offered 8 at this tier
- End-of-life platform
- Relatively high launch price
Pros
- Excellent price-to-performance
- 6 cores / 12 threads
- Easy to cool (65W)
- Good turbo boost speeds
Cons
- Locked multiplier
- Older 14nm process
- Limited upgrade path on LGA 1151
- Marginal improvement over i7-8700
Competitors & Alternatives
Intel Core i5-11600K
- AMD Ryzen 5 5600XRival
Desktop
- Compare head-to-headIntel Core i5-10600KRival
Desktop
- Intel Core i5-12400Rival
Desktop
- AMD Ryzen 5 7600XRival
Desktop
- Intel Core i7-11700KRival
Desktop
Slightly cheaper option if you already own a dedicated GPU.
Compare head-to-head- AMD Ryzen 5 5600Alt
More power-efficient alternative on the AM4 platform.
- Intel Core i5-11400Alt
Budget-friendly alternative if overclocking is not needed.
- AMD Ryzen 7 5700XAlt
Offers 8 cores for better multi-threaded workloads at similar pricing.
Intel Core i7-8670
- AMD Ryzen 5 2600Rival
Desktop
- AMD Ryzen 5 2600XRival
Desktop
- Compare head-to-headIntel Core i5-8600Rival
Desktop
- Compare head-to-headIntel Core i7-8700Rival
Desktop
- AMD Ryzen 7 2700Rival
Desktop
- AMD Ryzen 5 5600Alt
Much faster single-core and newer platform.
- Intel Core i5-12400FAlt
Better performance and modern features.
Cheaper 10th gen alternative with similar performance.
Compare head-to-head- AMD Ryzen 7 5700XAlt
More cores and better efficiency.
Our Verdict on Each
An excellent choice for mid-range gaming and productivity, offering good single-core speeds, PCIe 4.0, and integrated graphics for troubleshooting.
Best for: Building a mid-range gaming PC on the LGA 1200 platform.
Read the full reviewA well-balanced 65W hexa-core CPU that offers excellent value for 1080p gaming and everyday productivity without the premium of K-series chips.
Best for: Upgrading an older LGA 1151 system for 1080p gaming.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i5-11600K or Intel Core i7-8670?
Based on our editorial ratings, the Intel Core i7-8670 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 uses less power?
The Intel Core i7-8670 has the lowest rated TDP. Power draw across these chips: Intel Core i5-11600K (125 W), Intel Core i7-8670 (65 W).
Do Intel Core i5-11600K and Intel Core i7-8670 use the same socket?
No. They use different sockets (Intel Core i5-11600K: Intel Socket 1200 (LGA1200), Intel Core i7-8670: Intel Socket 1151), so each needs a compatible motherboard.
Which is faster in multi-core benchmarks?
The Intel Core i7-8670 posts the highest multi-core benchmark score. Multi-core results: Intel Core i5-11600K (0), Intel Core i7-8670 (14,000). Benchmark figures are approximate and workload-dependent.