Core i5-11400 vs Xeon Platinum 8256
Core i5-11400
Xeon Platinum 8256
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 i5-11400
Performance Per Dollar Xeon Platinum 8256
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-11400 | Xeon Platinum 8256 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($141) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Rocket Lake (2021) / 14 nm) | ✨ Modern (Cascade Lake-SP (2018) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-11400 | Xeon Platinum 8256 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($141) | ✅ 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 i5-11400 and Xeon Platinum 8256
Core i5-11400
The Core i5-11400 is manufactured by Intel. It was released in 16 March 2021 (4 years ago). It is based on the Rocket Lake (2021) architecture. It features 6 cores and 12 threads. Base frequency is 2.6 GHz, with boost up to 4.4 GHz. L3 cache: 12 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1200. Thermal design power (TDP): 65 Watt. Memory support: DDR4-3200. Passmark benchmark score: 16,670 points. Launch price was $299.
Xeon Platinum 8256
The Xeon Platinum 8256 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 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 3.9 GHz. L3 cache: 16.5 MB (total). L2 cache: 1 MB (per core). Built on 14 nm process technology. Socket: LGA3647. Thermal design power (TDP): 105 Watt. Memory support: DDR4-2933. Passmark benchmark score: 16,787 points. Launch price was $7,007.
Processing Power
The Core i5-11400 packs 6 cores / 12 threads, while the Xeon Platinum 8256 offers 4 cores / 8 threads — the Core i5-11400 has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-11400 versus 3.9 GHz on the Xeon Platinum 8256 — a 12% clock advantage for the Core i5-11400 (base: 2.6 GHz vs 3.8 GHz). The Core i5-11400 uses the Rocket Lake (2021) architecture (14 nm), while the Xeon Platinum 8256 uses Cascade Lake-SP (2018) (14 nm). In PassMark, the Core i5-11400 scores 16,670 against the Xeon Platinum 8256's 16,787 — a 0.7% lead for the Xeon Platinum 8256. L3 cache: 12 MB (total) on the Core i5-11400 vs 16.5 MB (total) on the Xeon Platinum 8256.
| Feature | Core i5-11400 | Xeon Platinum 8256 |
|---|---|---|
| Cores / Threads | 6 / 12+50% | 4 / 8 |
| Boost Clock | 4.4 GHz+13% | 3.9 GHz |
| Base Clock | 2.6 GHz | 3.8 GHz+46% |
| L3 Cache | 12 MB (total) | 16.5 MB (total)+38% |
| L2 Cache | 256K (per core) | 1 MB (per core)+300% |
| Process | 14 nm | 14 nm |
| Architecture | Rocket Lake (2021) | Cascade Lake-SP (2018) |
| PassMark | 16,670 | 16,787 |
| Cinebench R23 Multi | 10,350 | — |
| Geekbench 6 Single | 1,960 | — |
| Geekbench 6 Multi | 7,260 | — |
Memory & Platform
The Core i5-11400 uses the LGA1200 socket (PCIe 4.0), while the Xeon Platinum 8256 uses LGA3647 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-11400 | Xeon Platinum 8256 |
|---|---|---|
| Socket | LGA1200 | LGA3647 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | DDR4-3200 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i5-11400) / not specified (Xeon Platinum 8256). The Core i5-11400 includes integrated graphics (Intel UHD Graphics 730), while the Xeon Platinum 8256 requires a dedicated GPU. Primary use case: Core i5-11400 targets Mainstream Desktop. Direct competitor: Core i5-11400 rivals Ryzen 5 5600X.
| Feature | Core i5-11400 | Xeon Platinum 8256 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel UHD Graphics 730 | — |
| Unlocked | No | — |
| AVX-512 | Yes | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Mainstream Desktop | — |
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