CPU Comparison
Intel Core i9-7920X X-series vs Intel Core i9-7980XE
A side-by-side comparison of specs, performance and value. The Intel Core i9-7920X is a 12-core, 24-thread high-end desktop processor built on Skylake-X with quad-channel DDR4-2666 memory, up to 44 PCIe 3.0 lanes, and no integrated graphics. Designed for X299 platforms, it targets enthusiasts, creators, and workstation users who need multi-core throughput and I/O expansion in a desktop form factor.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- No dedicated AI acceleration hardware.
- Suitable for CPU-based inference or traditional machine learning preprocessing.
- Workloads heavily dependent on modern AI accelerators will run much slower.
- No dedicated NPUs; relies on AVX-512 for vectorized inference
- Suitable for small-scale experimentation and older models on CPU
Content Creation
Gaming
- Sufficient for high-refresh gaming when paired with a strong GPU.
- Turbo Boost Max 3.0 can elevate single-core performance for less threaded titles.
- Modern gaming CPUs tend to offer better efficiency and higher sustained clocks.
- Capable of high-refresh gaming when paired with strong GPUs
- Single-core performance is lower than contemporary gaming-focused CPUs
- Platform lacks upgrade path to newer CPUs
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 12 cores and 24 threads
- Quad-channel DDR4-2666 memory support
- Up to 44 PCIe 3.0 lanes for expansion
- Unlocked multiplier for overclocking
- Turbo Boost Max 3.0 for lightly threaded tasks
- AVX-512 instruction support
- Strong multi-threaded performance for its time
Cons
- High power consumption under load
- No integrated graphics
- Platform (X299/LGA2066) is discontinued
- Newer platforms offer better efficiency and value
- PCIe 3.0 instead of newer generations
Pros
- 18 cores and 36 threads for heavy parallel workloads
- 44 PCIe 3.0 lanes enable multiple GPUs and NVMe drives
- Quad-channel DDR4-2666 memory
- AVX-512 support for specialized workloads
- Unlocked multiplier for overclocking
- Strong multi-threaded performance in its era
Cons
- High power draw and thermal density
- No integrated graphics
- LGA2066/X299 platform effectively discontinued
- Lower per-core performance than newer generations
- DDR4-only memory support
Competitors & Alternatives
Intel Core i9-7920X X-series
- AMD Ryzen Threadripper 1920XRival
Workstation
- AMD Ryzen Threadripper 1950XRival
Workstation
- AMD Ryzen 9 3900XRival
Creator
- AMD Ryzen 9 3950XRival
Creator
- Compare head-to-headIntel Core i9-10920XRival
Workstation
Cascade Lake-X refresh with improved features and clocks on X299.
Compare head-to-head- AMD Ryzen 9 5900XAlt
Stronger efficiency and gaming performance on AM4 platform.
- AMD Ryzen 9 7900Alt
Modern AM5 platform with DDR5 and PCIe 5.0 for new builds.
- AMD Threadripper 3000/4000 seriesAlt
Higher core counts and more I/O for professional workstations.
- Intel Core i7-14700KAlt
Good mainstream alternative for gaming and content creation with lower power.
Intel Core i9-7980XE
- AMD Ryzen Threadripper 1950XRival
Workstation
- AMD Ryzen Threadripper 1920XRival
Workstation
- AMD Ryzen Threadripper 2950XRival
Workstation
- AMD Ryzen 9 3950XRival
Creator
- Compare head-to-headIntel Core i9-9980XERival
Workstation
- AMD Ryzen Threadripper 2970WXAlt
Higher core counts for workstation workloads.
- AMD Ryzen 9 5950XAlt
Much higher efficiency and strong multi-core performance.
Newer X-series HEDT with refinements and more PCIe lanes.
Compare head-to-head- AMD Ryzen Threadripper Pro 3955WXAlt
Pro-grade platform with more memory channels and I/O.
Strong single- and multi-core performance on a current mainstream platform.
Compare head-to-head
Our Verdict on Each
A capable HEDT chip with strong multi-threaded performance and ample I/O, but power-hungry by modern standards and best pursued used or for legacy X299 builds.
Best for: Upgrading or completing an existing LGA2066/X299 build at a low used price
Read the full reviewA flagship HEDT chip with massive multi-threaded throughput and abundant I/O, but high power draw and aging platform make it a specialist choice today.
Best for: Secondary workstation or used-market build needing lots of PCIe lanes and cores on a budget
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i9-7920X X-series or Intel Core i9-7980XE?
Based on our editorial ratings, the Intel Core i9-7980XE comes out ahead with a score of 8/10. 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 i9-7920X X-series has the lowest rated TDP. Power draw across these chips: Intel Core i9-7920X X-series (140 W), Intel Core i9-7980XE (165 W).
Do Intel Core i9-7920X X-series and Intel Core i9-7980XE use the same socket?
Yes — all of these CPUs use the LGA2066 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core i9-7980XE has the most cores. Core counts: Intel Core i9-7920X X-series (12 cores), Intel Core i9-7980XE (18 cores).