Xeon Gold 6421N vs Core i9-14900KS
Xeon Gold 6421N
Core i9-14900KS
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 Gold 6421N
Performance Per Dollar Core i9-14900KS
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($2,427) | ✅ More affordable ($670) |
| Longevity | ✨ Modern (Sapphire Rapids (2023−2024) / Intel 7 nm) | ✨ Modern (Raptor Lake-R (2023−2025) / Intel 7 nm) |
💎 Value Proposition
| Insight | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+273%) |
| Upfront Cost | ⚠️ Higher cost ($2,427) | ✅ More affordable ($670) |
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 Gold 6421N and Core i9-14900KS
Xeon Gold 6421N
The Xeon Gold 6421N is manufactured by Intel. It was released in 10 January 2023 (2 years ago). It is based on the Sapphire Rapids (2023−2024) architecture. It features 32 cores and 64 threads. Base frequency is 1.8 GHz, with boost up to 3.6 GHz. L3 cache: 60 MB. L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA4677. Thermal design power (TDP): 185 Watt. Memory support: DDR5-4400. Passmark benchmark score: 58,797 points. Launch price was $2,368.
Core i9-14900KS
The Core i9-14900KS is manufactured by Intel. It was released in Marchar 2024 (1 year ago). It is based on the Raptor Lake-R (2023−2025) architecture. It features 24 cores and 32 threads. Base frequency is 3.2 GHz, with boost up to 5.9 GHz. L3 cache: 36 MB (total). L2 cache: 2 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 150 Watt. Memory support: DDR5-5600, DDR4-3200. Passmark benchmark score: 60,531 points. Launch price was $689.
Processing Power
The Xeon Gold 6421N packs 32 cores / 64 threads, while the Core i9-14900KS offers 24 cores / 32 threads — the Xeon Gold 6421N has 8 more cores. Boost clocks reach 3.6 GHz on the Xeon Gold 6421N versus 5.9 GHz on the Core i9-14900KS — a 48.4% clock advantage for the Core i9-14900KS (base: 1.8 GHz vs 3.2 GHz). The Xeon Gold 6421N uses the Sapphire Rapids (2023−2024) architecture (Intel 7 nm), while the Core i9-14900KS uses Raptor Lake-R (2023−2025) (Intel 7 nm). In PassMark, the Xeon Gold 6421N scores 58,797 against the Core i9-14900KS's 60,531 — a 2.9% lead for the Core i9-14900KS. L3 cache: 60 MB on the Xeon Gold 6421N vs 36 MB (total) on the Core i9-14900KS.
| Feature | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| Cores / Threads | 32 / 64+33% | 24 / 32 |
| Boost Clock | 3.6 GHz | 5.9 GHz+64% |
| Base Clock | 1.8 GHz | 3.2 GHz+78% |
| L3 Cache | 60 MB+67% | 36 MB (total) |
| L2 Cache | 2 MB (per core) | 2 MB (per core) |
| Process | Intel 7 nm | Intel 7 nm |
| Architecture | Sapphire Rapids (2023−2024) | Raptor Lake-R (2023−2025) |
| PassMark | 58,797 | 60,531+3% |
Memory & Platform
The Xeon Gold 6421N uses the LGA4677 socket (PCIe 5.0), while the Core i9-14900KS uses LGA1700 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 4800 on the Xeon Gold 6421N versus 5600 on the Core i9-14900KS — the Core i9-14900KS supports 15.4% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Gold 6421N supports up to 4096 of RAM compared to 192 — 182.1% more capacity for professional workloads. Memory channels: 8 (Xeon Gold 6421N) vs 2 (Core i9-14900KS). PCIe lanes: 80 (Xeon Gold 6421N) vs 20 (Core i9-14900KS) — the Xeon Gold 6421N offers 60 more lanes for additional GPUs or NVMe drives. Chipset compatibility: C741 (Xeon Gold 6421N) and Z790,Z690 (Core i9-14900KS).
| Feature | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| Socket | LGA4677 | LGA1700 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | 4800 | 5600+17% |
| Max RAM Capacity | 4096+2033% | 192 |
| RAM Channels | 8+300% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 80+300% | 20 |
Advanced Features
Only the Core i9-14900KS has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Xeon Gold 6421N supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d virtualization. The Core i9-14900KS includes integrated graphics (Intel UHD Graphics 770), while the Xeon Gold 6421N requires a dedicated GPU. Direct competitor: Xeon Gold 6421N rivals EPYC 9354; Core i9-14900KS rivals Ryzen 9 7950X.
| Feature | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | Intel UHD Graphics 770 |
| Unlocked | No | Yes |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
Value Analysis
The Xeon Gold 6421N launched at $2368 MSRP, while the Core i9-14900KS debuted at $749. At current prices ($2427 vs $670), the Core i9-14900KS is $1757 cheaper. In terms of value (PassMark points per dollar), the Xeon Gold 6421N delivers 24.2 pts/$ vs 90.3 pts/$ for the Core i9-14900KS — making the Core i9-14900KS the 115.4% better value option.
| Feature | Xeon Gold 6421N | Core i9-14900KS |
|---|---|---|
| MSRP | $2368 | $749-68% |
| Avg Price (30d) | $2427 | $670-72% |
| Performance per Dollar | 24.2 | 90.3+273% |
| Release Date | 2023 | 2024 |
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