Xeon W-2155 vs Core i9-7900X
Xeon W-2155
Core i9-7900X
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 Xeon W-2155
Performance Per Dollar Core i9-7900X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($150) | ⚠️ Higher cost ($188) |
| Longevity | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+25%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($150) | ⚠️ Higher cost ($188) |
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 Xeon W-2155 and Core i9-7900X
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.
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.
Processing Power
Both the Xeon W-2155 and Core i9-7900X share an identical 10-core/20-thread configuration. Boost clocks reach 4.5 GHz on the Xeon W-2155 versus 4.5 GHz on the Core i9-7900X — 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 Xeon W-2155 scores 20,858 against the Core i9-7900X's 20,907 — a 0.2% lead for the Core i9-7900X. L3 cache: 13.75 MB (total) on the Xeon W-2155 vs 14 MB (total) on the Core i9-7900X.
| Feature | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| Cores / Threads | 10 / 20 | 10 / 20 |
| Boost Clock | 4.5 GHz | 4.5 GHz |
| Base Clock | 3.3 GHz | 3.3 GHz |
| L3 Cache | 13.75 MB (total) | 14 MB (total)+2% |
| 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 | 20,858 | 20,907 |
| Geekbench 6 Single | — | 1,323 |
| Geekbench 6 Multi | — | 8,536 |
Memory & Platform
The Xeon W-2155 uses the LGA2066 socket (PCIe 3.0), while the Core i9-7900X uses LGA2011 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| Socket | LGA2066 | LGA2011 |
| 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: not specified (Xeon W-2155) / VT-x, VT-d (Core i9-7900X). Primary use case: Core i9-7900X targets High-End Desktop.
| Feature | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| Integrated GPU | — | No |
| IGPU Model | — | None |
| Unlocked | — | Yes |
| AVX-512 | — | Yes |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | High-End Desktop |
Value Analysis
The Xeon W-2155 launched at $1440 MSRP, while the Core i9-7900X debuted at $999. At current prices ($150 vs $188), the Xeon W-2155 is $38 cheaper. In terms of value (PassMark points per dollar), the Xeon W-2155 delivers 139.1 pts/$ vs 111.2 pts/$ for the Core i9-7900X — making the Xeon W-2155 the 22.3% better value option.
| Feature | Xeon W-2155 | Core i9-7900X |
|---|---|---|
| MSRP | $1440 | $999-31% |
| Avg Price (30d) | $150-20% | $188 |
| Performance per Dollar | 139.1+25% | 111.2 |
| Release Date | 2017 | 2017 |
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