Core i7-11700B vs Core i9-9900X
Core i7-11700B
Core i9-9900X
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 i7-11700B
Performance Per Dollar Core i9-9900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-11700B | Core i9-9900X |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($311) | ✅ More affordable ($300) |
| Longevity | ✨ Modern (Tiger Lake-H (2021) / 10 nm SuperFin) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i7-11700B | Core i9-9900X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+4%) |
| Upfront Cost | ⚠️ Higher cost ($311) | ✅ More affordable ($300) |
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 i7-11700B and Core i9-9900X
Core i7-11700B
The Core i7-11700B is manufactured by Intel. It was released in 11 May 2021 (4 years ago). It is based on the Tiger Lake-H (2021) architecture. It features 8 cores and 16 threads. Base frequency is 3.2 GHz, with boost up to 4.8 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: Up to 3200 MT/s. Passmark benchmark score: 21,581 points. Launch price was $299.
Core i9-9900X
The Core i9-9900X is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.5 GHz, with boost up to 4.5 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: DDR4-2666. Passmark benchmark score: 21,655 points. Launch price was $989.
Processing Power
The Core i7-11700B packs 8 cores / 16 threads, while the Core i9-9900X offers 10 cores / 20 threads — the Core i9-9900X has 2 more cores. Boost clocks reach 4.8 GHz on the Core i7-11700B versus 4.5 GHz on the Core i9-9900X — a 6.5% clock advantage for the Core i7-11700B (base: 3.2 GHz vs 3.5 GHz). The Core i7-11700B uses the Tiger Lake-H (2021) architecture (10 nm SuperFin), while the Core i9-9900X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Core i7-11700B scores 21,581 against the Core i9-9900X's 21,655 — a 0.3% lead for the Core i9-9900X. Cinebench R23 multi-core: 10,287 vs 13,985 (30.5% advantage for the Core i9-9900X). Geekbench 6 single-core — the metric most relevant to gaming — records 2,265 vs 1,459, a 43.3% lead for the Core i7-11700B that directly translates to higher frame rates. Multi-core Geekbench: 10,050 vs 9,475 (5.9% advantage for the Core i7-11700B). L3 cache: 24 MB (total) on the Core i7-11700B vs 19.25 MB (total) on the Core i9-9900X.
| Feature | Core i7-11700B | Core i9-9900X |
|---|---|---|
| Cores / Threads | 8 / 16 | 10 / 20+25% |
| Boost Clock | 4.8 GHz+7% | 4.5 GHz |
| Base Clock | 3.2 GHz | 3.5 GHz+9% |
| L3 Cache | 24 MB (total)+25% | 19.25 MB (total) |
| L2 Cache | 1.25 MB (per core)+25% | 1 MB (per core) |
| Process | 10 nm SuperFin-29% | 14 nm |
| Architecture | Tiger Lake-H (2021) | Skylake (server) (2017−2018) |
| PassMark | 21,581 | 21,655 |
| Cinebench R23 Multi | 10,287 | 13,985+36% |
| Geekbench 6 Single | 2,265+55% | 1,459 |
| Geekbench 6 Multi | 10,050+6% | 9,475 |
Memory & Platform
The Core i7-11700B uses the FCBGA1787 socket (PCIe 4.0), while the Core i9-9900X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Both support up to DDR4-3200 memory speed. Both support up to 128 GB of RAM. Memory channels: 2 (Core i7-11700B) vs 4 (Core i9-9900X). PCIe lanes: 20 (Core i7-11700B) vs 44 (Core i9-9900X) — the Core i9-9900X offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: HM570,QM580,WM590 (Core i7-11700B) and X299 (Core i9-9900X).
| Feature | Core i7-11700B | Core i9-9900X |
|---|---|---|
| Socket | FCBGA1787 | LGA2066 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | DDR4-2666 |
| Max RAM Capacity | 128 GB | 128 GB |
| RAM Channels | 2 | 4+100% |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 20 | 44+120% |
Advanced Features
Only the Core i9-9900X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d virtualization. The Core i7-11700B includes integrated graphics (Intel UHD Graphics 750), while the Core i9-9900X requires a dedicated GPU. Primary use case: Core i7-11700B targets Desktop.
| Feature | Core i7-11700B | Core i9-9900X |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel UHD Graphics 750 | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
| Target Use | Desktop | — |
Value Analysis
The Core i7-11700B launched at $323 MSRP, while the Core i9-9900X debuted at $989. At current prices ($311 vs $300), the Core i9-9900X is $11 cheaper. In terms of value (PassMark points per dollar), the Core i7-11700B delivers 69.4 pts/$ vs 72.2 pts/$ for the Core i9-9900X — making the Core i9-9900X the 3.9% better value option.
| Feature | Core i7-11700B | Core i9-9900X |
|---|---|---|
| MSRP | $323-67% | $989 |
| Avg Price (30d) | $311 | $300-4% |
| Performance per Dollar | 69.4 | 72.2+4% |
| Release Date | 2021 | 2018 |
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