CPU Comparison
Intel Core i9-7900X vs Intel Core i9-9980XE
A side-by-side comparison of specs, performance and value. The Intel Core i9-7900X is a 10-core, 20-thread high-end desktop processor based on the Skylake-X architecture, targeting enthusiasts, content creators, and workstation users who need more cores, memory bandwidth, and PCIe lanes than mainstream desktop platforms offer.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Strong multi-threaded performance for creator workloads; competitive with or better than many mainstream 8–10 core CPUs at the time, though newer designs are faster per clock.
Strong multi-threaded performance in rendering, encoding, and other heavily threaded applications, though core-for-core efficiency lags newer architectures.
Gaming
Capable of high-refresh-rate gaming at 1440p and above, but modern gaming-focused CPUs often deliver better minimums and efficiency.
Still capable of high-refresh-rate gaming and often faster than Threadripper in lightly threaded titles, but newer mainstream CPUs with higher IPC and efficiency generally surpass it for pure gaming.
Virtualization
Excellent for running multiple VMs thanks to 10 cores, 20 threads, and quad-channel memory, especially when paired with VT-x and VT-d support.
Excellent for running multiple VMs thanks to 18 cores, 36 threads, quad-channel memory, and abundant PCIe lanes for storage and networking.
Efficiency
High power consumption and heat output compared to modern 10nm/7nm parts; requires robust cooling and a strong PSU.
High power consumption and heat output under load; requires robust cooling and a quality PSU, especially when overclocked.
Specialized Performance
AI / ML
- No dedicated AI acceleration hardware like NPU or AI instructions beyond AVX-512.
- Suitable for CPU-based inference and small model workloads, but not competitive with modern AI-focused CPUs or 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 clocks up to 4.3–4.5 GHz enable high FPS in CPU-heavy titles.
- Most games don’t scale beyond 6–8 cores, so newer 8-core CPUs often match or beat it in gaming while using less power.
- Best suited for GPU-bound scenarios at 1440p/4K where the CPU is less of a bottleneck.
- 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 for heavy multi-threaded workloads.
- 44 PCIe 3.0 lanes from the CPU for multi-GPU and NVMe SSDs.
- Quad-channel DDR4-2666 with up to 85 GB/s bandwidth.
- Strong performance for content creation and virtualization at its price point.
- Unlocked multiplier for enthusiast overclocking.
- Turbo Boost Max 3.0 boosts up to 4.5 GHz on best cores.
Cons
- High 140W TDP and real-world power draw under load.
- 14nm process is significantly less efficient than modern 10nm/7nm designs.
- No integrated graphics; requires a discrete GPU.
- X299 platform is discontinued with no upgrade path beyond LGA2066.
- Mesh interconnect can increase lightly-threaded latency versus older ring-bus designs in some workloads.
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 i9-7900X
- AMD Ryzen Threadripper 1900XRival
High-End Desktop / Workstation
- AMD Ryzen 7 1800XRival
Mainstream High-End Desktop
- Compare head-to-headIntel Core i7-6950XRival
Previous-Gen HEDT
- Intel Core i9-7820XRival
8-Core HEDT Alternative
- Compare head-to-headIntel Core i9-7960XRival
Higher-Core-Count HEDT
Same platform with higher clocks and slightly better efficiency; better choice if staying on X299.
Compare head-to-head- AMD Ryzen 9 3900XAlt
Newer 12-core AM4 part with much better efficiency and strong creator performance; requires a new platform.
Modern 20-thread mainstream CPU with much better single-threaded and gaming performance, plus DDR5 support.
Compare head-to-head- AMD Ryzen 9 7900Alt
Efficient 12-core AM5 CPU with modern I/O (DDR5, PCIe 5.0) and far better power efficiency.
Later 12-core X-Series part on the same X299 platform if you want more cores but stay on LGA2066.
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 once-flagship HEDT CPU that still delivers strong multi-threaded performance and I/O capability, but its 14nm process, high power draw, and discontinued platform make it mainly interesting for used builds or legacy systems.
Best for: Used workstation or creator build on X299 where multi-threaded performance and I/O matter more than efficiency or platform longevity.
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 better, Intel Core i9-7900X or Intel Core i9-9980XE?
Based on our editorial ratings, the Intel Core i9-9980XE 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 i9-7900X or Intel Core i9-9980XE?
For gaming, the Intel Core i9-9980XE leads with a gaming performance score of 80/100 among Intel Core i9-7900X and Intel Core i9-9980XE.
Which uses less power?
The Intel Core i9-7900X has the lowest rated TDP. Power draw across these chips: Intel Core i9-7900X (140 W), Intel Core i9-9980XE (165 W).
Do Intel Core i9-7900X and Intel Core i9-9980XE use the same socket?
No. They use different sockets (Intel Core i9-7900X: LGA2066, Intel Core i9-9980XE: FCLGA2066), so each needs a compatible motherboard.
Which has more cores?
The Intel Core i9-9980XE has the most cores. Core counts: Intel Core i9-7900X (10 cores), Intel Core i9-9980XE (18 cores).
Which is faster in multi-core benchmarks?
The Intel Core i9-7900X posts the highest multi-core benchmark score. Multi-core results: Intel Core i9-7900X (10,199). Benchmark figures are approximate and workload-dependent.