CPU Comparison
Intel Core i7-6800K vs Core i7-3930K
A side-by-side comparison of specs, performance and value. The Intel Core i7-6800K is a high-end desktop (HEDT) processor built on the Broadwell-E architecture. Designed for enthusiasts and professionals, it features six cores and twelve threads, offering a significant multi-threaded performance leap over mainstream quad-core CPUs of its era. Operating at a base frequency of 3.4 GHz and boosting up to 3.8 GHz with Intel Turbo Boost Max 3.0, it delivers robust computing power for demanding applications. Unlike mainstream chips, it utilizes the LGA 2011-v3 socket and the X99 chipset, supporting quad-channel DDR4 memory for massive memory bandwidth. With 28 PCIe 3.0 lanes, it provides extensive expansion capabilities for multi-GPU setups and high-speed storage arrays. The 140-watt TDP reflects its workstation-class design. While it lacks integrated graphics, requiring a discrete GPU, the 6800K excels in parallel processing tasks like video editing, 3D rendering, and virtualization, making it a powerhouse for creators who need more than standard desktop platforms offer.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
6 cores handle rendering well, but lack the speed of modern architectures.
6 cores and 12 threads hold up well for content creation.
Gaming
Good for gaming, but single-core speed lags behind modern CPUs.
Still decent for modern gaming, though single-core is slower than new CPUs.
Virtualization
Quad-channel memory and 12 threads make it great for VMs.
Excellent for VMs with 12 threads and quad-channel memory.
Efficiency
140W TDP is power-hungry by modern standards.
130W TDP and 32nm process mean it runs hot and uses power.
Specialized Performance
AI / ML
- No AI hardware
- CPU inference is moderate due to core count
- No AI hardware
- PCIe 3.0 is okay for basic inference cards
Content Creation
Gaming
- Can handle modern games with a discrete GPU
- Lower single-core speed limits high-refresh gaming
- Great for multi-tasking while gaming
- 6 cores help with modern titles
- Overclocks well to improve single-core
- PCIe 3.0 supports modern GPUs
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 6 cores / 12 threads
- 28 PCIe lanes
- Quad-channel memory
- Unlocked for overclocking
Cons
- High 140W TDP
- Older 14nm process
- Only 28 PCIe lanes
- Lacks integrated graphics
Pros
- 6 cores and 12 threads
- 40 PCIe 3.0 lanes
- Massive 12MB L3 cache
- Excellent overclocker
Cons
- High 130W TDP
- 32nm process is inefficient
- No integrated graphics
- Obsolete X79 platform
Competitors & Alternatives
Intel Core i7-6800K
- AMD Ryzen 7 1700XRival
High-End Desktop
- Compare head-to-headIntel Core i7-5820KRival
High-End Desktop
- AMD Ryzen 7 1700Rival
High-End Desktop
- Compare head-to-headIntel Core i7-7800XRival
High-End Desktop
- Compare head-to-headIntel Core i7-6850KRival
High-End Desktop
- AMD Ryzen 5 5600XAlt
Vastly superior single-core speed and efficiency.
- Intel Core i5-12400FAlt
Modern alternative that beats it in almost everything.
- AMD Ryzen 7 5700XAlt
8 cores, better IPC, lower power.
Core i7-3930K
- AMD FX-8150Rival
Desktop
- Intel Core i7-3960XRival
HEDT
- Intel Core i7-3910KRival
HEDT
- AMD FX-8350Rival
Desktop
- Compare head-to-headIntel Core i7-2700KRival
Desktop
- Intel Core i7-4930KAlt
Ivy Bridge-E successor with slightly better performance.
Haswell-E successor with DDR4 support.
Compare head-to-headHaswell-E with 40 PCIe lanes and DDR4.
Compare head-to-headBroadwell-E successor with better efficiency.
Compare head-to-head
Our Verdict on Each
A solid entry point into the HEDT market, offering 6 cores and 28 PCIe lanes, though aging rapidly compared to modern alternatives.
Best for: Upgrading an existing X99 system for more cores.
Read the full reviewA legendary HEDT CPU that brought 6 cores to the masses. Still capable for budget workstations today.
Best for: Budget 6-core workstation build
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-6800K or Core i7-3930K?
Based on our editorial ratings, the Core i7-3930K comes out ahead with a score of 8.2/10. 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 i7-6800K or Core i7-3930K?
For gaming, the Intel Core i7-6800K leads with a gaming performance score of 65/100 among Intel Core i7-6800K and Core i7-3930K.
Which uses less power?
The Core i7-3930K has the lowest rated TDP. Power draw across these chips: Intel Core i7-6800K (140 W), Core i7-3930K (130 W).
Do Intel Core i7-6800K and Core i7-3930K use the same socket?
No. They use different sockets (Intel Core i7-6800K: Intel Socket 2011-3, Core i7-3930K: LGA 2011), so each needs a compatible motherboard.