Core i9-10900X vs Core i9-11900KB
Core i9-10900X
Core i9-11900KB
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i9-10900X
Performance Per Dollar Core i9-11900KB
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($425) | ✅ More affordable ($350) |
| Longevity | ✨ Modern (Cascade Lake-X (2019) / 14 nm) | ✨ Modern (Tiger Lake-H (2021) / 10 nm SuperFin) |
💎 Value Proposition
| Insight | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+23%) |
| Upfront Cost | ⚠️ Higher cost ($425) | ✅ More affordable ($350) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i9-10900X and Core i9-11900KB
Core i9-10900X
The Core i9-10900X is manufactured by Intel. It was released in 19 October 2019 (6 years ago). It is based on the Cascade Lake-X (2019) architecture. It features 10 cores and 20 threads. Base frequency is 3.7 GHz, with boost up to 4.7 GHz. L3 cache: 19.25 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 165 Watt. Memory support: DDR4-2933. Passmark benchmark score: 22,377 points. Launch price was $299.
Core i9-11900KB
The Core i9-11900KB is manufactured by Intel. It was released in Maio 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.3 GHz, with boost up to 4.9 GHz. L3 cache: 24 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1787. Thermal design power (TDP): 65 Watt. Memory support: DDR4. Passmark benchmark score: 22,693 points. Launch price was $539.
Processing Power
The Core i9-10900X packs 10 cores / 20 threads, while the Core i9-11900KB offers 8 cores / 16 threads — the Core i9-10900X has 2 more cores. Boost clocks reach 4.7 GHz on the Core i9-10900X versus 4.9 GHz on the Core i9-11900KB — a 4.2% clock advantage for the Core i9-11900KB (base: 3.7 GHz vs 3.3 GHz). The Core i9-10900X uses the Cascade Lake-X (2019) architecture (14 nm), while the Core i9-11900KB uses Tiger Lake-H (2021) (10 nm SuperFin). In PassMark, the Core i9-10900X scores 22,377 against the Core i9-11900KB's 22,693 — a 1.4% lead for the Core i9-11900KB. L3 cache: 19.25 MB (total) on the Core i9-10900X vs 24 MB (total) on the Core i9-11900KB.
| Feature | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| Cores / Threads | 10 / 20+25% | 8 / 16 |
| Boost Clock | 4.7 GHz | 4.9 GHz+4% |
| Base Clock | 3.7 GHz+12% | 3.3 GHz |
| L3 Cache | 19.25 MB (total) | 24 MB (total)+25% |
| L2 Cache | 1 MB (per core) | 1.25 MB (per core)+25% |
| Process | 14 nm | 10 nm SuperFin-29% |
| Architecture | Cascade Lake-X (2019) | Tiger Lake-H (2021) |
| PassMark | 22,377 | 22,693+1% |
| Cinebench R23 Multi | — | 12,264 |
| Geekbench 6 Multi | — | 10,645 |
Memory & Platform
The Core i9-10900X uses the LGA2066 socket (PCIe 3.0), while the Core i9-11900KB uses FCBGA1787 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| Socket | LGA2066 | FCBGA1787 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 20 |
Advanced Features
Virtualization: not specified (Core i9-10900X) / VT-x, VT-d (Core i9-11900KB). The Core i9-11900KB includes integrated graphics (Intel UHD Graphics), while the Core i9-10900X requires a dedicated GPU.
| Feature | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | Intel UHD Graphics |
| Unlocked | — | Yes |
| AVX-512 | — | Yes |
| Virtualization | — | VT-x, VT-d |
Value Analysis
The Core i9-10900X launched at $590 MSRP, while the Core i9-11900KB debuted at $539. At current prices ($425 vs $350), the Core i9-11900KB is $75 cheaper. In terms of value (PassMark points per dollar), the Core i9-10900X delivers 52.7 pts/$ vs 64.8 pts/$ for the Core i9-11900KB — making the Core i9-11900KB the 20.7% better value option.
| Feature | Core i9-10900X | Core i9-11900KB |
|---|---|---|
| MSRP | $590 | $539-9% |
| Avg Price (30d) | $425 | $350-18% |
| Performance per Dollar | 52.7 | 64.8+23% |
| Release Date | 2019 | 2021 |
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