CPU Comparison
Intel Core i9-10900X vs Intel Core i9-9980XE
A side-by-side comparison of specs, performance and value. The Intel Core i9-10900X is a 10-core, 20-thread high-end desktop processor built on Intel’s Cascade Lake-X architecture, offering quad-channel DDR4-2933, 48 PCIe 3.0 lanes, and up to 4.7 GHz Turbo Boost Max 3.0 for workstation and creator workloads.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Gaming
Virtualization
Efficiency
Specialized Performance
AI / ML
- AVX-512 and DL Boost (VNNI) accelerate int8 inference on CPU, useful for some local AI workloads.
- No dedicated NPU or GPU-style tensor cores; heavy AI training or large models are still better off on a discrete GPU.
- Performance is reasonable for CPU-based inference but far behind modern NPUs or datacenter GPUs.
- No dedicated AI acceleration like Intel DL Boost or AVX-512 BF16.
- AVX-512 is present, but focused on traditional HPC/rendering workloads.
- Only suitable for CPU-based AI inference or small models; GPU acceleration is preferred for serious AI work.
Content Creation
Gaming
- Strong single-core performance up to 4.7 GHz on best cores helps high-refresh-rate gaming.
- Modern gaming CPUs (e.g., i7-14700K, Ryzen 7 7800X3D) often deliver better FPS per watt.
- PCIe 3.0 x16 is sufficient for current GPUs, but future GPUs may stress PCIe 3.0 x8 configurations more heavily.
- Strong single-threaded and light-threaded performance thanks to high turbo clocks.
- Often outperforms 1st- and 2nd-gen Threadripper in games at similar core counts.
- Modern gaming-focused CPUs (e.g., Intel 13th/14th gen, AMD Ryzen 7000) are usually faster and more efficient.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- 10 cores and 20 threads handle heavily multi-threaded workloads well.
- 48 PCIe 3.0 lanes from the CPU enable multi-GPU and many NVMe drives.
- Quad-channel DDR4-2933 provides substantially more memory bandwidth than mainstream desktop CPUs.
- Unlocked multiplier and strong turbo headroom for enthusiast overclocking.
- AVX-512 and DL Boost (VNNI) accelerate vectorized and int8 AI inference workloads on CPU.
- Good virtualization support (VT-x, VT-d) for home labs and dev environments.
Cons
- High 165 W TDP and 14nm process lead to high power consumption and heat output.
- X299 platform is discontinued with no upgrade path beyond Cascade Lake-X.
- No integrated graphics; a discrete GPU is mandatory.
- PCIe 3.0 only, while newer platforms offer PCIe 4.0/5.0.
- Modern mainstream CPUs (e.g., i7-14700K, Ryzen 9 7900) often match or beat it in performance per watt and per dollar.
Pros
- 18 cores and 36 threads for demanding multi-threaded workloads.
- 44 PCIe 3.0 lanes for multi-GPU and high-speed storage configurations.
- Quad-channel DDR4-2666 with up to 128 GB capacity and high bandwidth.
- Solder thermal interface material improves cooling and turbo behavior.
- Unlocked multiplier for overclocking on X299 motherboards.
- Strong all-round performance in both lightly and heavily threaded tasks.
Cons
- Very high street price at launch and weak value versus AMD Threadripper.
- High power consumption and heat output, requiring robust cooling and PSU.
- 14nm++ process is now outdated, with much more efficient alternatives available.
- No integrated graphics, requiring a discrete GPU.
- Discontinued platform with no upgrade path beyond LGA2066/X299.
- AVX-512 and feature set lag newer Intel and AMD architectures for some workloads.
Competitors & Alternatives
Intel Core i9-10900X
- AMD Ryzen 9 3900XRival
High-End Desktop / Creator
- AMD Ryzen Threadripper 2920XRival
HEDT / Workstation
- Compare head-to-headIntel Core i9-10920XRival
HEDT / Workstation
- Compare head-to-headIntel Core i9-9900XRival
HEDT / Workstation
- Compare head-to-headIntel Core i9-10900KRival
High-End Mainstream
- Intel Core i7-14700KAlt
Offers higher single-threaded and gaming performance, DDR5 and PCIe 5.0 support, and better efficiency, making it a stronger choice for a new general-purpose or gaming build.
- AMD Ryzen 9 7900Alt
A 12-core Zen 4 CPU with much higher efficiency, DDR5 and PCIe 5.0, and strong gaming and creator performance, ideal if you want a modern platform with an upgrade path.
- AMD Ryzen Threadripper 7920XAlt
A modern HEDT CPU with more cores, PCIe 4.0/5.0, and quad-channel memory, suitable if you need serious workstation expansion and are willing to invest in a new TRX50 motherboard.
A 14-core Cascade Lake-X sibling that provides more cores for heavily multi-threaded workloads if you are already committed to the X299 platform.
Compare head-to-head
Intel Core i9-9980XE
- AMD Ryzen Threadripper 2950XRival
HEDT / Creator
- AMD Ryzen Threadripper 2990WXRival
HEDT / Workstation
- Compare head-to-headIntel Core i9-10980XERival
HEDT / Workstation
- Compare head-to-headIntel Core i9-7980XERival
HEDT / Workstation
- Intel Xeon W-3175XRival
Workstation
- AMD Ryzen 9 7950XAlt
Much more efficient, modern platform (AM5, DDR5, PCIe 5.0), and strong creator performance at a lower price point.
Far better gaming and single-threaded performance with higher efficiency on a mainstream platform, though with fewer PCIe lanes.
Compare head-to-head- AMD Ryzen Threadripper (3rd gen or later)Alt
Higher core counts, more PCIe lanes, and better multi-threaded performance for serious workstation use.
- AMD Ryzen 9 7900Alt
More balanced performance-per-watt and modern features if you don’t need extreme core counts or lots of PCIe lanes.
Our Verdict on Each
A still-capable HEDT CPU with strong expansion and multi-threaded performance, but its 14nm heritage, high power draw, and dead-end platform make it a hard sell versus modern mainstream or Threadripper alternatives unless bought used at a deep discount.
Best for: Building a used workstation or upgrading an existing X299 system where you already have a compatible motherboard and cooling, and you need quad-channel memory plus 48 PCIe lanes on a tight budget.
Read the full reviewA very powerful HEDT CPU with strong multi-threaded performance and excellent I/O, but high power consumption and a steep price make it hard to recommend over AMD’s Threadripper alternatives unless you specifically need Intel’s platform features.
Best for: Used or heavily discounted upgrade for an existing X299 workstation where you need maximum cores and PCIe lanes without replacing the motherboard.
Read the full reviewFrequently Asked Questions
Which is faster for gaming, Intel Core i9-10900X or Intel Core i9-9980XE?
For gaming, the Intel Core i9-9980XE leads with a gaming performance score of 80/100 among Intel Core i9-10900X and Intel Core i9-9980XE.
Do Intel Core i9-10900X and Intel Core i9-9980XE 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 i9-9980XE has the most cores. Core counts: Intel Core i9-10900X (10 cores), Intel Core i9-9980XE (18 cores).