Core i5-9400 vs Xeon E5-4655 v3
Core i5-9400
Xeon E5-4655 v3
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 i5-9400
Performance Per Dollar Xeon E5-4655 v3
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($85) | ⚠️ Higher cost ($150) |
| Longevity | ✨ Modern (Coffee Lake (2017−2019) / 14 nm) | 🛑 Legacy (Haswell-EP (2014−2015) / 22 nm) |
💎 Value Proposition
| Insight | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+76%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($85) | ⚠️ Higher cost ($150) |
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 i5-9400 and Xeon E5-4655 v3
Core i5-9400
The Core i5-9400 is manufactured by Intel. It was released in 19 October 2018 (7 years ago). It is based on the Coffee Lake (2017−2019) architecture. It features 6 cores and 6 threads. Base frequency is 2.9 GHz, with boost up to 4.1 GHz. L3 cache: 9 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 65 Watt. Memory support: DDR4-2666. Passmark benchmark score: 9,372 points. Launch price was $182.
Xeon E5-4655 v3
The Xeon E5-4655 v3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 6 cores and 12 threads. Base frequency is 2.9 GHz, with boost up to 3.2 GHz. L3 cache: 30 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011. Thermal design power (TDP): 135 Watt. Memory support: DDR4. Passmark benchmark score: 9,377 points. Launch price was $800.
Processing Power
The Core i5-9400 packs 6 cores / 6 threads, matching the Xeon E5-4655 v3's 6 cores. Boost clocks reach 4.1 GHz on the Core i5-9400 versus 3.2 GHz on the Xeon E5-4655 v3 — a 24.7% clock advantage for the Core i5-9400 (base: 2.9 GHz vs 2.9 GHz). The Core i5-9400 uses the Coffee Lake (2017−2019) architecture (14 nm), while the Xeon E5-4655 v3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Core i5-9400 scores 9,372 against the Xeon E5-4655 v3's 9,377 — a 0.1% lead for the Xeon E5-4655 v3. L3 cache: 9 MB (total) on the Core i5-9400 vs 30 MB (total) on the Xeon E5-4655 v3.
| Feature | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| Cores / Threads | 6 / 6 | 6 / 12 |
| Boost Clock | 4.1 GHz+28% | 3.2 GHz |
| Base Clock | 2.9 GHz | 2.9 GHz |
| L3 Cache | 9 MB (total) | 30 MB (total)+233% |
| L2 Cache | 256K (per core) | 256K (per core) |
| Process | 14 nm-36% | 22 nm |
| Architecture | Coffee Lake (2017−2019) | Haswell-EP (2014−2015) |
| PassMark | 9,372 | 9,377 |
Memory & Platform
The Core i5-9400 uses the LGA1151 socket (PCIe 3.0), while the Xeon E5-4655 v3 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| Socket | LGA1151 | LGA2011 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2666 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d (Core i5-9400) / not specified (Xeon E5-4655 v3). The Core i5-9400 includes integrated graphics (UHD Graphics 630), while the Xeon E5-4655 v3 requires a dedicated GPU. Primary use case: Core i5-9400 targets Desktop.
| Feature | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | UHD Graphics 630 | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d | — |
| Target Use | Desktop | — |
Value Analysis
The Core i5-9400 launched at $192 MSRP, while the Xeon E5-4655 v3 debuted at $623. At current prices ($85 vs $150), the Core i5-9400 is $65 cheaper. In terms of value (PassMark points per dollar), the Core i5-9400 delivers 110.3 pts/$ vs 62.5 pts/$ for the Xeon E5-4655 v3 — making the Core i5-9400 the 55.3% better value option.
| Feature | Core i5-9400 | Xeon E5-4655 v3 |
|---|---|---|
| MSRP | $192-69% | $623 |
| Avg Price (30d) | $85-43% | $150 |
| Performance per Dollar | 110.3+76% | 62.5 |
| Release Date | 2019 | 2015 |
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