Core i7-9700K vs Xeon Silver 4123
Core i7-9700K
Xeon Silver 4123
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 i7-9700K
Performance Per Dollar Xeon Silver 4123
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-9700K | Xeon Silver 4123 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($200) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Coffee Lake-R (2018−2019) / 14 nm) | ✨ Modern (Legacy / 14 nm) |
💎 Value Proposition
| Insight | Core i7-9700K | Xeon Silver 4123 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($200) | ✅ More affordable ($0) |
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 i7-9700K and Xeon Silver 4123
Core i7-9700K
The Core i7-9700K is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake-R (2018−2019) architecture. It features 8 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 4.9 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 95 Watt. Memory support: DDR4. Passmark benchmark score: 14,397 points. Launch price was $374.
Xeon Silver 4123
The Xeon Silver 4123 is manufactured by Intel. It was released in 2015-01-01. It features 8 cores and 16 threads. Base frequency is 3 GHz, with boost up to 3.2 GHz. L3 cache: 11 MB. Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 105 Watt. Memory support: DDR4-2400. Passmark benchmark score: 14,405 points. Launch price was $800.
Processing Power
The Core i7-9700K packs 8 cores / 8 threads, matching the Xeon Silver 4123's 8 cores. Boost clocks reach 4.9 GHz on the Core i7-9700K versus 3.2 GHz on the Xeon Silver 4123 — a 42% clock advantage for the Core i7-9700K (base: 3.6 GHz vs 3 GHz). The Core i7-9700K is built on the Coffee Lake-R (2018−2019) architecture. In PassMark, the Core i7-9700K scores 14,397 against the Xeon Silver 4123's 14,405 — a 0.1% lead for the Xeon Silver 4123. L3 cache: 12 MB (total) on the Core i7-9700K vs 11 MB on the Xeon Silver 4123.
| Feature | Core i7-9700K | Xeon Silver 4123 |
|---|---|---|
| Cores / Threads | 8 / 8 | 8 / 16 |
| Boost Clock | 4.9 GHz+53% | 3.2 GHz |
| Base Clock | 3.6 GHz+20% | 3 GHz |
| L3 Cache | 12 MB (total)+9% | 11 MB |
| L2 Cache | 256K (per core) | — |
| Process | 14 nm | 14 nm |
| Architecture | Coffee Lake-R (2018−2019) | — |
| PassMark | 14,397 | 14,405 |
Memory & Platform
The Core i7-9700K uses the LGA1151 socket (PCIe 3.0), while the Xeon Silver 4123 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i7-9700K | Xeon Silver 4123 |
|---|---|---|
| Socket | LGA1151 | LGA3647 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i7-9700K) / not specified (Xeon Silver 4123). The Core i7-9700K includes integrated graphics (UHD Graphics 630), while the Xeon Silver 4123 requires a dedicated GPU. Primary use case: Core i7-9700K targets Desktop.
| Feature | Core i7-9700K | Xeon Silver 4123 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 630 | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Desktop | — |
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