Xeon E5-2665 vs Core i5-10400H
Xeon E5-2665
Core i5-10400H
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 Xeon E5-2665 is positioned at rank 348 and the Core i5-10400H is on rank 652, so the Xeon E5-2665 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5-2665
Performance Per Dollar Core i5-10400H
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-2665 | Core i5-10400H |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) | ✨ Modern (Comet Lake-H (2020) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5-2665 | Core i5-10400H |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 E5-2665 and Core i5-10400H
Xeon E5-2665
The Xeon E5-2665 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 8 cores and 16 threads. Base frequency is 2.4 GHz, with boost up to 3.1 GHz. L3 cache: 20480 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 115 Watt. Memory support: DDR3. Passmark benchmark score: 8,293 points. Launch price was $142.
Core i5-10400H
The Core i5-10400H is manufactured by Intel. It was released in 2 April 2020 (5 years ago). It is based on the Comet Lake-H (2020) architecture. It features 4 cores and 8 threads. Base frequency is 2.6 GHz, with boost up to 4.6 GHz. L3 cache: 6 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: BGA1440. Thermal design power (TDP): 45 Watt. Memory support: DDR4. Passmark benchmark score: 8,246 points. Launch price was $149.
Processing Power
The Xeon E5-2665 packs 8 cores / 16 threads, while the Core i5-10400H offers 4 cores / 8 threads — the Xeon E5-2665 has 4 more cores. Boost clocks reach 3.1 GHz on the Xeon E5-2665 versus 4.6 GHz on the Core i5-10400H — a 39% clock advantage for the Core i5-10400H (base: 2.4 GHz vs 2.6 GHz). The Xeon E5-2665 uses the Sandy Bridge-EP (2012) architecture (32 nm), while the Core i5-10400H uses Comet Lake-H (2020) (14 nm). In PassMark, the Xeon E5-2665 scores 8,293 against the Core i5-10400H's 8,246 — a 0.6% lead for the Xeon E5-2665. L3 cache: 20480 kB (total) on the Xeon E5-2665 vs 6 MB (total) on the Core i5-10400H.
| Feature | Xeon E5-2665 | Core i5-10400H |
|---|---|---|
| Cores / Threads | 8 / 16+100% | 4 / 8 |
| Boost Clock | 3.1 GHz | 4.6 GHz+48% |
| Base Clock | 2.4 GHz | 2.6 GHz+8% |
| L3 Cache | 20480 kB (total)+233% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 256K (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Sandy Bridge-EP (2012) | Comet Lake-H (2020) |
| PassMark | 8,293 | 8,246 |
| Geekbench 6 Single | — | 1,391 |
Memory & Platform
The Xeon E5-2665 uses the LGA2011 socket (PCIe 5.0), while the Core i5-10400H uses BGA1440 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Xeon E5-2665 versus DDR4-2933 on the Core i5-10400H — the Core i5-10400H supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5-2665 supports up to 384 GB of RAM compared to 128 GB — 100% more capacity for professional workloads. Memory channels: 4 (Xeon E5-2665) vs 2 (Core i5-10400H). PCIe lanes: 40 (Xeon E5-2665) vs 16 (Core i5-10400H) — the Xeon E5-2665 offers 24 more lanes for additional GPUs or NVMe drives.
| Feature | Xeon E5-2665 | Core i5-10400H |
|---|---|---|
| Socket | LGA2011 | BGA1440 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR3-1600 | DDR4-2933+33% |
| Max RAM Capacity | 384 GB+200% | 128 GB |
| RAM Channels | 4+100% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 40+150% | 16 |
Advanced Features
Neither processor supports overclocking. Only the Xeon E5-2665 supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x, VT-d (Xeon E5-2665) vs VT-x, VT-d, EPT (Core i5-10400H). The Core i5-10400H includes integrated graphics (UHD Graphics 630), while the Xeon E5-2665 requires a dedicated GPU. Primary use case: Xeon E5-2665 targets Server, Core i5-10400H targets Performance Laptop. Direct competitor: Core i5-10400H rivals Ryzen 5 4600H.
| Feature | Xeon E5-2665 | Core i5-10400H |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | UHD Graphics 630 |
| Unlocked | No | No |
| AVX-512 | Yes | No |
| Virtualization | VT-x, VT-d | VT-x, VT-d, EPT |
| Target Use | Server | Performance Laptop |
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