CPU Comparison
Intel Core i7-11800H vs Intel Core i9-11900KB
A side-by-side comparison of specs, performance and value. The Intel Core i7-11800H is an 8-core, 16-thread high-performance mobile processor built on the 10nm SuperFin process, designed for heavy-duty gaming laptops and mobile workstations.
The Bottom Line
Overview & Launch
Specifications Compared
Performance Compared
Productivity
Blazes through heavy multi-threaded applications like Premiere Pro and Blender.
For content creation workloads like video editing, 3D rendering and compilation, the 8‑core/16‑thread design and high boost clocks provide strong multi‑threaded throughput. It is competitive with other 8‑core 11th‑gen Intel and Ryzen 5000 mobile CPUs in its power envelope.
Gaming
Consistently high frame rates in modern titles, limited only by the discrete GPU.
When paired with a modern mid‑range or high‑end GPU, the i9‑11900KB delivers high‑refresh‑rate 1080p and solid 1440p gaming. It is broadly comparable to the i9‑11900K in CPU‑bound scenarios, though some newer titles may run slightly better on newer architectures with higher IPC or E‑cores.
Virtualization
16 threads make it highly capable for local VMs and containerized development.
With support for VT‑x, VT‑d, EPT and ample memory bandwidth, the i9‑11900KB is well suited to running multiple VMs on a compact NUC or embedded platform, especially when equipped with 64 GB of RAM.
Efficiency
Consumes more power than newer 12th Gen Alder Lake parts under load.
Intel’s 10 nm SuperFin process and configurable 55–65 W TDP deliver better efficiency than older 14 nm desktop parts, but more recent Intel and AMD architectures surpass it in performance per watt.
Specialized Performance
AI / ML
- Capable of running medium-sized local AI models
- AVX-512 and DL Boost accelerate CPU-based inference
- No dedicated NPU or AI accelerator hardware.
- DL Boost and AVX‑512 (if enabled by firmware) can accelerate some CPU‑based inference workloads.
- Not competitive with modern CPUs with built‑in NPUs for heavy AI tasks.
Content Creation
Gaming
- Massive 24MB L3 cache boosts game performance significantly
- Handles CPU-bound titles like Microsoft Flight Simulator well
- Pairs perfectly with RTX 3060 and 3070 mobile GPUs
- Strong single‑threaded performance thanks to high boost clocks.
- Capable of high‑refresh‑rate 1080p gaming with a suitable GPU.
- Performance is close to the desktop i9‑11900K in many CPU‑bound games.
- Newer gaming CPUs with hybrid architectures may offer higher FPS in some titles.
Industry Impact
Best CPU by Use Case
Target Audience
Strengths & Weaknesses
Pros
- Excellent 8-core, 16-thread performance
- Massive 24MB L3 cache significantly boosts gaming
- 20 PCIe 4.0 lanes for fast storage and GPUs
- Competitive single-core clock speeds
Cons
- Locked multiplier
- 35W base TDP can run hot in poorly cooled laptops
- Does not support DDR5 or LPDDR5
- Surpassed by 12th Gen Alder Lake in hybrid efficiency
Pros
- 8 high‑performance Willow Cove cores with 16 threads
- High single‑core boost up to 5.3 GHz with Thermal Velocity Boost
- 65 W configurable TDP (55–65 W) enables compact cooling
- 20 PCIe 4.0 lanes from CPU for modern GPU and NVMe
- Integrated UHD Graphics 750 with Quick Sync Video
- Unlocked multiplier for overclocking on supported platforms
Cons
- BGA 1787 package: CPU is soldered and not replaceable
- Platform is discontinued; limited long‑term upgrade path
- No DDR5 or PCIe 5.0 support
- Newer Intel and AMD CPUs offer better efficiency and performance per watt
- Larger L2 cache (10 MB total) benefits some workloads but increases die cost
Competitors & Alternatives
Intel Core i7-11800H
- AMD Ryzen 7 5800HRival
High-Performance Mobile
- AMD Ryzen 9 5900HXRival
High-Performance Mobile
- Compare head-to-headIntel Core i9-11900HRival
High-Performance Mobile
- Compare head-to-headApple M1 ProRival
ARM Mobile
- AMD Ryzen 7 5800URival
Thin-and-Light Mobile
Better for thin-and-light laptops if 8 cores are not needed.
Compare head-to-head- Intel Core i5-11400HAlt
A budget-friendly alternative with 6 cores that performs well in gaming.
A newer generation with significantly better multi-core performance via a hybrid architecture.
Compare head-to-head
Intel Core i9-11900KB
- Compare head-to-headIntel Core i9-11900KRival
Desktop
- AMD Ryzen 9 5900HXRival
Mobile / SFF Desktop
- Compare head-to-headIntel Core i9-11900HRival
Mobile
- AMD Ryzen 7 5800HRival
Mobile / SFF Desktop
- Compare head-to-headIntel Core i7-11700BRival
SFF Desktop / BGA
- Intel Core i9-12900HAlt
Newer 12th‑gen hybrid architecture with significantly higher multi‑threaded performance and better efficiency.
- AMD Ryzen 9 6900HXAlt
Zen 3+ with stronger multi‑core performance and modern features, often in similar SFF laptops.
Better value and gaming performance on a socketed DDR4/DDR5 platform with more upgrade flexibility.
Compare head-to-head- AMD Ryzen 7 7700Alt
AM5 platform with DDR5 and PCIe 5.0, offering a more modern upgrade path and strong single‑thread speed.
Our Verdict on Each
A massive leap for Intel's mobile lineup, offering excellent 8-core multi-threaded performance and strong single-core speeds for gaming.
Best for: Buying a discounted 11th Gen gaming laptop for high-end 1080p/1440p gaming
Read the full reviewA potent 8‑core Tiger Lake chip with excellent single‑threaded performance and modern features, but locked to BGA and now discontinued, making it mainly interesting for existing NUC 11 Extreme owners or very specific embedded use cases.
Best for: Upgrading or repairing an Intel NUC 11 Extreme ‘Beast Canyon’ or similar BGA‑based SFF system where you can reuse the existing compute element and cooling.
Read the full reviewFrequently Asked Questions
Which is better, Intel Core i7-11800H or Intel Core i9-11900KB?
Based on our editorial ratings, the Intel Core i7-11800H comes out ahead with a score of 9/10. 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 i7-11800H or Intel Core i9-11900KB?
For gaming, the Intel Core i7-11800H leads with a gaming performance score of 95/100 among Intel Core i7-11800H and Intel Core i9-11900KB.
Which uses less power?
The Intel Core i7-11800H has the lowest rated TDP. Power draw across these chips: Intel Core i7-11800H (35 W), Intel Core i9-11900KB (65 W).
Do Intel Core i7-11800H and Intel Core i9-11900KB use the same socket?
Yes — all of these CPUs use the Intel BGA 1787 socket, so they share compatible motherboards.
Which is faster in multi-core benchmarks?
The Intel Core i9-11900KB posts the highest multi-core benchmark score. Multi-core results: Intel Core i7-11800H (18,500), Intel Core i9-11900KB (22,748). Benchmark figures are approximate and workload-dependent.