Core i9-9900X vs Xeon W-11955M
Core i9-9900X
Xeon W-11955M
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 i9-9900X
Performance Per Dollar Xeon W-11955M
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($300) | ⚠️ Higher cost ($450) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Tiger Lake-H (2021) / 10 nm SuperFin) |
💎 Value Proposition
| Insight | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+50%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($300) | ⚠️ Higher cost ($450) |
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 i9-9900X and Xeon W-11955M
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.
Xeon W-11955M
The Xeon W-11955M 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 2.1 GHz, with boost up to 5 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): 35 Watt. Memory support: DDR4. Passmark benchmark score: 21,702 points. Launch price was $623.
Processing Power
The Core i9-9900X packs 10 cores / 20 threads, while the Xeon W-11955M offers 8 cores / 16 threads — the Core i9-9900X has 2 more cores. Boost clocks reach 4.5 GHz on the Core i9-9900X versus 5 GHz on the Xeon W-11955M — a 10.5% clock advantage for the Xeon W-11955M (base: 3.5 GHz vs 2.1 GHz). The Core i9-9900X uses the Skylake (server) (2017−2018) architecture (14 nm), while the Xeon W-11955M uses Tiger Lake-H (2021) (10 nm SuperFin). In PassMark, the Core i9-9900X scores 21,655 against the Xeon W-11955M's 21,702 — a 0.2% lead for the Xeon W-11955M. L3 cache: 19.25 MB (total) on the Core i9-9900X vs 24 MB (total) on the Xeon W-11955M.
| Feature | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| Cores / Threads | 10 / 20+25% | 8 / 16 |
| Boost Clock | 4.5 GHz | 5 GHz+11% |
| Base Clock | 3.5 GHz+67% | 2.1 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 | Skylake (server) (2017−2018) | Tiger Lake-H (2021) |
| PassMark | 21,655 | 21,702 |
| Cinebench R23 Multi | 13,985 | — |
| Geekbench 6 Single | 1,459 | — |
| Geekbench 6 Multi | 9,475 | — |
Memory & Platform
The Core i9-9900X uses the LGA2066 socket (PCIe 3.0), while the Xeon W-11955M uses FCBGA1787 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| Socket | LGA2066 | FCBGA1787 |
| PCIe Generation | PCIe 3.0 | PCIe 4.0+33% |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 44 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i9-9900X) / not specified (Xeon W-11955M).
| Feature | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | — |
| Virtualization | VT-x, VT-d | — |
Value Analysis
The Core i9-9900X launched at $989 MSRP, while the Xeon W-11955M debuted at $623. At current prices ($300 vs $450), the Core i9-9900X is $150 cheaper. In terms of value (PassMark points per dollar), the Core i9-9900X delivers 72.2 pts/$ vs 48.2 pts/$ for the Xeon W-11955M — making the Core i9-9900X the 39.8% better value option.
| Feature | Core i9-9900X | Xeon W-11955M |
|---|---|---|
| MSRP | $989 | $623-37% |
| Avg Price (30d) | $300-33% | $450 |
| Performance per Dollar | 72.2+50% | 48.2 |
| Release Date | 2018 | 2021 |
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