
Core i5-5257U vs Xeon X3450

Core i5-5257U

Xeon X3450
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. The Core i5-5257U is positioned at rank 725 and the Xeon X3450 is on rank 813, so the Core i5-5257U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-5257U
Performance Per Dollar Xeon X3450
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-5257U | Xeon X3450 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($39) |
| Longevity | 🛑 Legacy (Broadwell-U (2015) / 14 nm) | 🛑 Legacy (Lynnfield (2009−2010) / 45 nm) |
💎 Value Proposition
| Insight | Core i5-5257U | Xeon X3450 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($39) |
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 i5-5257U and Xeon X3450

Core i5-5257U
The Core i5-5257U is manufactured by Intel. It was released in 1 March 2015 (10 years ago). It is based on the Broadwell-U (2015) architecture. It features 2 cores and 4 threads. Base frequency is 2.7 GHz, with boost up to 3.1 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: FCBGA1168. Thermal design power (TDP): 28 Watt. Memory support: DDR3. Passmark benchmark score: 2,837 points. Launch price was $315.

Xeon X3450
The Xeon X3450 is manufactured by Intel. It was released in 8 September 2009 (16 years ago). It is based on the Lynnfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2.66 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1156. Thermal design power (TDP): 95 Watt. Memory support: DDR3-800, DDR3-1066, DDR3-1333. Passmark benchmark score: 2,877 points. Launch price was $241.
Processing Power
The Core i5-5257U packs 2 cores / 4 threads, while the Xeon X3450 offers 4 cores / 8 threads — the Xeon X3450 has 2 more cores. Boost clocks reach 3.1 GHz on the Core i5-5257U versus 3.2 GHz on the Xeon X3450 — a 3.2% clock advantage for the Xeon X3450 (base: 2.7 GHz vs 2.66 GHz). The Core i5-5257U uses the Broadwell-U (2015) architecture (14 nm), while the Xeon X3450 uses Lynnfield (2009−2010) (45 nm). In PassMark, the Core i5-5257U scores 2,837 against the Xeon X3450's 2,877 — a 1.4% lead for the Xeon X3450. L3 cache: 3 MB (total) on the Core i5-5257U vs 8 MB (total) on the Xeon X3450.
| Feature | Core i5-5257U | Xeon X3450 |
|---|---|---|
| Cores / Threads | 2 / 4 | 4 / 8+100% |
| Boost Clock | 3.1 GHz | 3.2 GHz+3% |
| Base Clock | 2.7 GHz+2% | 2.66 GHz |
| L3 Cache | 3 MB (total) | 8 MB (total)+167% |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Broadwell-U (2015) | Lynnfield (2009−2010) |
| PassMark | 2,837 | 2,877+1% |
| Geekbench 6 Single | 950 | — |
| Geekbench 6 Multi | 1,900 | — |
Memory & Platform
The Core i5-5257U uses the FCBGA1168 socket (PCIe 3.0), while the Xeon X3450 uses LGA1156 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core i5-5257U | Xeon X3450 |
|---|---|---|
| Socket | FCBGA1168 | LGA1156 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | LPDDR3 1866 MHz | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 12 | — |
Advanced Features
Virtualization: true (Core i5-5257U) / not specified (Xeon X3450). The Core i5-5257U includes integrated graphics (Intel Iris Graphics 6100), while the Xeon X3450 requires a dedicated GPU. Primary use case: Core i5-5257U targets Mobile.
| Feature | Core i5-5257U | Xeon X3450 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Intel Iris Graphics 6100 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | true | — |
| Target Use | Mobile | — |
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