CPU Comparison
Intel Core i9-10980XE vs Intel Core i9-9940X
A side-by-side comparison of specs, performance and value. The Intel Core i9-10980XE is an 18-core, 36-thread high-end desktop processor built on the Cascade Lake-X architecture for enthusiasts and creators who need lots of PCIe lanes and quad-channel memory bandwidth on the LGA2066 platform.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AVX-512 and DL Boost help with CPU-based inference and some AI workloads
- No dedicated AI accelerator; far slower than modern NPUs or GPUs for large models
- No dedicated AI accelerators; relies on AVX‑512 CPU inference.
- Acceptable for light CPU‑based inference or prototyping, but not competitive with modern CPUs or GPUs with DL Boost / Tensor cores.
Content Creation
Gaming
- High single-core boost up to 4.8 GHz helps in CPU-heavy titles
- PCIe 3.0 x16 is sufficient for current GPUs, but lacks PCIe 4.0/5.0 benefits
- Modern gaming CPUs often outperform it in latency-sensitive titles and 1% lows
- Strong single‑core clocks up to 4.4 GHz with Turbo Boost Max 3.0 up to 4.5 GHz on favored cores.
- Capable of 144 fps+ esports performance at 1080p with a modern GPU; more GPU‑bound at 1440p and 4K.
- Modern 6–8 core CPUs often match or beat it in games while drawing far less power.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 18 cores and 36 threads for heavily threaded workloads
- 48 PCIe 3.0 lanes for multi-GPU and NVMe configurations
- Quad-channel DDR4-2933 memory with up to 256 GB support
- Strong multi-threaded creator and workstation performance
- Unlocked multiplier for overclocking
- AVX-512 and DL Boost support for certain compute and AI workloads
Cons
- High power consumption and heat output for the performance level
- 14nm process is far behind modern nodes in efficiency and density
- No integrated graphics; requires discrete GPU
- Discontinued platform with no upgrade path beyond Cascade Lake-X
- PCIe 3.0 only, lacking PCIe 4.0/5.0 benefits of newer platforms
Pros
- 14 cores and 28 threads for heavily threaded workloads.
- 44 PCIe 3.0 lanes for multi‑GPU and NVMe setups.
- Quad‑channel DDR4‑2666 with up to 128 GB support.
- AVX‑512 instruction support for specialized compute.
- Unlocked multiplier for enthusiast overclocking.
Cons
- High 165 W TDP and relatively low efficiency vs newer CPUs.
- Older 14 nm Skylake‑X platform with no upgrade path beyond Cascade Lake‑X.
- No integrated graphics; requires a discrete GPU.
- Only 44 PCIe lanes versus 64 on competing Threadripper platforms.
- Discontinued, with limited long‑term platform support.
Competitors & Alternatives
Intel Core i9-10980XE
- AMD Ryzen 9 3950XRival
High-End Desktop / Creator
- AMD Ryzen Threadripper 3960XRival
Workstation / HEDT
- AMD Ryzen Threadripper 3970XRival
Workstation / HEDT
- Compare head-to-headIntel Core i9-9980XERival
HEDT / Workstation
- Intel Xeon W-2295Rival
Workstation
- AMD Ryzen 9 7900Alt
More modern and efficient platform with DDR5 and PCIe 4.0, better for mixed gaming and creator workloads.
Much higher single-thread and gaming performance, plus modern platform features, though fewer PCIe lanes.
Compare head-to-head- AMD Ryzen 9 7950XAlt
Higher multi-threaded performance, better efficiency, and newer platform if you don’t need 48 PCIe lanes.
- Intel Xeon W-2400 seriesAlt
Modern workstation platform with DDR5 and PCIe 5.0 if you need many lanes and workstation reliability.
- AMD Ryzen Threadripper 7000 seriesAlt
True HEDT successor with more cores, PCIe 5.0, and quad-channel DDR5 for heavy workstation use.
Intel Core i9-9940X
- AMD Ryzen Threadripper 2920XRival
HEDT / Workstation
- AMD Ryzen Threadripper 2970WXRival
HEDT / Many‑Core Workstation
- AMD Ryzen 9 3900XRival
High‑End Mainstream / Creator
- Compare head-to-headIntel Core i9-10940XRival
HEDT (Cascade Lake‑X)
- Compare head-to-headIntel Core i9-7940XRival
Previous‑Gen HEDT
- Intel Core i7-14700KAlt
Newer hybrid architecture with similar or better multi‑thread performance and far better efficiency for a new build.
- AMD Ryzen 9 7900Alt
Modern AM5 platform with DDR5 and PCIe 5.0, much better efficiency, and strong creator performance.
Our Verdict on Each
Still a potent workstation and creator CPU thanks to its core count and expansion, but its 14nm process and high power draw make it hard to recommend over modern mainstream or HEDT alternatives unless bought cheap on the used market.
Best for: Used or heavily discounted workstation/creator build where you need many PCIe lanes and cores and already have an X299 motherboard.
Read the full reviewA capable HEDT CPU with strong multi‑threaded performance and excellent I/O, but outclassed in efficiency and value by newer mainstream and HEDT alternatives.
Best for: Used or discounted X299 workstation builds where you need many cores and PCIe lanes on a budget.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i9-10980XE or Intel Core i9-9940X?
Based on our editorial ratings, the Intel Core i9-10980XE 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 i9-10980XE or Intel Core i9-9940X?
For gaming, the Intel Core i9-10980XE leads with a gaming performance score of 80/100 among Intel Core i9-10980XE and Intel Core i9-9940X.
Do Intel Core i9-10980XE and Intel Core i9-9940X use the same socket?
Yes — all of these CPUs use the FCLGA2066 socket, so they share compatible motherboards.
Which has more cores?
The Intel Core i9-10980XE has the most cores. Core counts: Intel Core i9-10980XE (18 cores), Intel Core i9-9940X (14 cores).