Core i9-7900X vs Xeon W-2155
Core i9-7900X
Xeon W-2155
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 i9-7900X
Performance Per Dollar Xeon W-2155
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($188) | ✅ More affordable ($150) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+25%) |
| Upfront Cost | ⚠️ Higher cost ($188) | ✅ More affordable ($150) |
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 i9-7900X and Xeon W-2155
Core i9-7900X
The Core i9-7900X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 14 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 140 Watt. Memory support: DDR4. Passmark benchmark score: 20,907 points. Launch price was $999.
Xeon W-2155
The Xeon W-2155 is manufactured by Intel. It was released in 29 August 2017 (8 years ago). It is based on the Skylake (server) (2017−2018) architecture. It features 10 cores and 20 threads. Base frequency is 3.3 GHz, with boost up to 4.5 GHz. L3 cache: 13.75 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 140 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133, DDR4-2400, DDR4-2666. Passmark benchmark score: 20,858 points. Launch price was $1,440.
Processing Power
Both the Core i9-7900X and Xeon W-2155 share an identical 10-core/20-thread configuration. Boost clocks reach 4.5 GHz on the Core i9-7900X versus 4.5 GHz on the Xeon W-2155 — identical boost frequencies (base: 3.3 GHz vs 3.3 GHz). Both are built on the Skylake (server) (2017−2018) architecture using a 14 nm process. In PassMark, the Core i9-7900X scores 20,907 against the Xeon W-2155's 20,858 — a 0.2% lead for the Core i9-7900X. L3 cache: 14 MB (total) on the Core i9-7900X vs 13.75 MB (total) on the Xeon W-2155.
| Feature | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| Cores / Threads | 10 / 20 | 10 / 20 |
| Boost Clock | 4.5 GHz | 4.5 GHz |
| Base Clock | 3.3 GHz | 3.3 GHz |
| L3 Cache | 14 MB (total)+2% | 13.75 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Skylake (server) (2017−2018) | Skylake (server) (2017−2018) |
| PassMark | 20,907 | 20,858 |
| Geekbench 6 Single | 1,323 | — |
| Geekbench 6 Multi | 8,536 | — |
Memory & Platform
The Core i9-7900X uses the LGA2011 socket (PCIe 3.0), while the Xeon W-2155 uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| Socket | LGA2011 | LGA2066 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| 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 i9-7900X) / not specified (Xeon W-2155). Primary use case: Core i9-7900X targets High-End Desktop.
| Feature | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | High-End Desktop | — |
Value Analysis
The Core i9-7900X launched at $999 MSRP, while the Xeon W-2155 debuted at $1440. At current prices ($188 vs $150), the Xeon W-2155 is $38 cheaper. In terms of value (PassMark points per dollar), the Core i9-7900X delivers 111.2 pts/$ vs 139.1 pts/$ for the Xeon W-2155 — making the Xeon W-2155 the 22.3% better value option.
| Feature | Core i9-7900X | Xeon W-2155 |
|---|---|---|
| MSRP | $999-31% | $1440 |
| Avg Price (30d) | $188 | $150-20% |
| Performance per Dollar | 111.2 | 139.1+25% |
| Release Date | 2017 | 2017 |
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