Core i5-12400F vs Xeon X5647
Core i5-12400F
Xeon X5647
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 i5-12400F
Performance Per Dollar Xeon X5647
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-12400F | Xeon X5647 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($110) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Core i5-12400F | Xeon X5647 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($110) | ✅ 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 i5-12400F and Xeon X5647
Core i5-12400F
The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.
Xeon X5647
The Xeon X5647 is manufactured by Intel. It was released in 14 February 2011 (14 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 4 cores and 8 threads. Base frequency is 2.93 GHz, with boost up to 3.2 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 4,441 points. Launch price was $175.
Processing Power
The Core i5-12400F packs 6 cores / 12 threads, while the Xeon X5647 offers 4 cores / 8 threads — the Core i5-12400F has 2 more cores. Boost clocks reach 4.4 GHz on the Core i5-12400F versus 3.2 GHz on the Xeon X5647 — a 31.6% clock advantage for the Core i5-12400F (base: 2.5 GHz vs 2.93 GHz). The Core i5-12400F uses the Alder Lake-S (2022) architecture (Intel 7 nm), while the Xeon X5647 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i5-12400F scores 19,532 against the Xeon X5647's 4,441 — a 125.9% lead for the Core i5-12400F. L3 cache: 18 MB (total) on the Core i5-12400F vs 12 MB (total) on the Xeon X5647.
| Feature | Core i5-12400F | Xeon X5647 |
|---|---|---|
| Cores / Threads | 6 / 12+50% | 4 / 8 |
| Boost Clock | 4.4 GHz+38% | 3.2 GHz |
| Base Clock | 2.5 GHz | 2.93 GHz+17% |
| L3 Cache | 18 MB (total)+50% | 12 MB (total) |
| L2 Cache | 1.25 MB (per core)+400% | 256 kB (per core) |
| Process | Intel 7 nm-78% | 32 nm |
| Architecture | Alder Lake-S (2022) | Westmere-EP (2010−2011) |
| PassMark | 19,532+340% | 4,441 |
| Cinebench R23 Multi | 12,380 | — |
| Geekbench 6 Single | 1,700 | — |
| Geekbench 6 Multi | 657 | — |
Memory & Platform
The Core i5-12400F uses the LGA1700 socket (PCIe 3.0), while the Xeon X5647 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR5-4800, DDR4-3200 on the Core i5-12400F versus DDR3-1066 on the Xeon X5647 — the Core i5-12400F supports 50% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 2 (Core i5-12400F) vs 3 (Xeon X5647). Chipset compatibility: H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F) and Intel X58,Intel 5520 (Xeon X5647).
| Feature | Core i5-12400F | Xeon X5647 |
|---|---|---|
| Socket | LGA1700 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR5-4800, DDR4-3200+67% | DDR3-1066 |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | 3+50% |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization support: VT-x, VT-d, EPT (Core i5-12400F) vs VT-x, VT-d (Xeon X5647). Primary use case: Core i5-12400F targets Gaming Performance/Value, Xeon X5647 targets Workstation. Direct competitor: Core i5-12400F rivals Ryzen 5 5600; Xeon X5647 rivals Core i7-980X.
| Feature | Core i5-12400F | Xeon X5647 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | VT-x, VT-d, EPT | VT-x, VT-d |
| Target Use | Gaming Performance/Value | Workstation |
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