Xeon Platinum 8253 vs Core i9-9940X
Xeon Platinum 8253
Core i9-9940X
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 Platinum 8253
Performance Per Dollar Core i9-9940X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon Platinum 8253 | Core i9-9940X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($850) |
| Longevity | ✨ Modern (Cascade Lake-SP (2018) / 14 nm) | ✨ Modern (Skylake (server) (2017−2018) / 14 nm) |
💎 Value Proposition
| Insight | Xeon Platinum 8253 | Core i9-9940X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($850) |
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 Platinum 8253 and Core i9-9940X
Xeon Platinum 8253
The Xeon Platinum 8253 is manufactured by Intel. It was released in 11 December 2018 (6 years ago). It is based on the Cascade Lake-SP (2018) architecture. It features 16 cores and 32 threads. Base frequency is 2.2 GHz, with boost up to 3 GHz. L3 cache: 22 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 125 Watt. Memory support: DDR4-2933. Passmark benchmark score: 28,165 points. Launch price was $3,115.
Core i9-9940X
The Core i9-9940X 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 14 cores and 28 threads. Base frequency is 3.3 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: 28,088 points. Launch price was $1,387.
Processing Power
The Xeon Platinum 8253 packs 16 cores / 32 threads, while the Core i9-9940X offers 14 cores / 28 threads — the Xeon Platinum 8253 has 2 more cores. Boost clocks reach 3 GHz on the Xeon Platinum 8253 versus 4.5 GHz on the Core i9-9940X — a 40% clock advantage for the Core i9-9940X (base: 2.2 GHz vs 3.3 GHz). The Xeon Platinum 8253 uses the Cascade Lake-SP (2018) architecture (14 nm), while the Core i9-9940X uses Skylake (server) (2017−2018) (14 nm). In PassMark, the Xeon Platinum 8253 scores 28,165 against the Core i9-9940X's 28,088 — a 0.3% lead for the Xeon Platinum 8253. L3 cache: 22 MB (total) on the Xeon Platinum 8253 vs 19.25 MB (total) on the Core i9-9940X.
| Feature | Xeon Platinum 8253 | Core i9-9940X |
|---|---|---|
| Cores / Threads | 16 / 32+14% | 14 / 28 |
| Boost Clock | 3 GHz | 4.5 GHz+50% |
| Base Clock | 2.2 GHz | 3.3 GHz+50% |
| L3 Cache | 22 MB (total)+14% | 19.25 MB (total) |
| L2 Cache | 1 MB (per core) | 1 MB (per core) |
| Process | 14 nm | 14 nm |
| Architecture | Cascade Lake-SP (2018) | Skylake (server) (2017−2018) |
| PassMark | 28,165 | 28,088 |
Memory & Platform
The Xeon Platinum 8253 uses the LGA3647 socket (PCIe 3.0), while the Core i9-9940X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches 2933 on the Xeon Platinum 8253 versus DDR4-2666 on the Core i9-9940X — the Xeon Platinum 8253 supports 199.5% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon Platinum 8253 supports up to 1024 of RAM compared to 128 GB — 155.6% more capacity for professional workloads. Memory channels: 6 (Xeon Platinum 8253) vs 4 (Core i9-9940X). PCIe lanes: 48 (Xeon Platinum 8253) vs 44 (Core i9-9940X) — the Xeon Platinum 8253 offers 4 more lanes for additional GPUs or NVMe drives.
| Feature | Xeon Platinum 8253 | Core i9-9940X |
|---|---|---|
| Socket | LGA3647 | LGA2066 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | 2933+73225% | DDR4-2666 |
| Max RAM Capacity | 1024 | 128 GB+13107100% |
| RAM Channels | 6+50% | 4 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 48+9% | 44 |
Advanced Features
Only the Core i9-9940X has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Both support AVX-512 instructions, benefiting scientific computing, AI inference, and encryption workloads. Both support VT-x, VT-d virtualization. Primary use case: Core i9-9940X targets Workstation. Direct competitor: Xeon Platinum 8253 rivals EPYC 7402.
| Feature | Xeon Platinum 8253 | Core i9-9940X |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | No | Yes |
| AVX-512 | Yes | Yes |
| Virtualization | VT-x, VT-d | VT-x, VT-d |
| Target Use | — | Workstation |
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