CPU
GPU
Xeon X5647
Core i3-6320
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 X5647 is positioned at rank 593 and the Core i3-6320 is on rank 630, so the Xeon X5647 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon X5647
Performance Per Dollar Core i3-6320
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon X5647 | Core i3-6320 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | 🛑 Legacy (Skylake (2015−2016) / 14 nm) |
💎 Value Proposition
| Insight | Xeon X5647 | Core i3-6320 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($35) |
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 X5647 and Core i3-6320
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.
Core i3-6320
The Core i3-6320 is manufactured by Intel. It was released in 1 September 2015 (10 years ago). It is based on the Skylake (2015−2016) architecture. It features 2 cores and 4 threads. Base frequency is 3.9 GHz, with boost up to 3.9 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 51 Watt. Memory support: DDR4. Passmark benchmark score: 4,421 points. Launch price was $157.
Processing Power
The Xeon X5647 packs 4 cores / 8 threads, while the Core i3-6320 offers 2 cores / 4 threads — the Xeon X5647 has 2 more cores. Boost clocks reach 3.2 GHz on the Xeon X5647 versus 3.9 GHz on the Core i3-6320 — a 19.7% clock advantage for the Core i3-6320 (base: 2.93 GHz vs 3.9 GHz). The Xeon X5647 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Core i3-6320 uses Skylake (2015−2016) (14 nm). In PassMark, the Xeon X5647 scores 4,441 against the Core i3-6320's 4,421 — a 0.5% lead for the Xeon X5647. L3 cache: 12 MB (total) on the Xeon X5647 vs 4 MB (total) on the Core i3-6320.
| Feature | Xeon X5647 | Core i3-6320 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 4 |
| Boost Clock | 3.2 GHz | 3.9 GHz+22% |
| Base Clock | 2.93 GHz | 3.9 GHz+33% |
| L3 Cache | 12 MB (total)+200% | 4 MB (total) |
| L2 Cache | 256 kB (per core) | 256K (per core) |
| Process | 32 nm | 14 nm-56% |
| Architecture | Westmere-EP (2010−2011) | Skylake (2015−2016) |
| PassMark | 4,441 | 4,421 |
| Cinebench R23 Multi | — | 2,853 |
| Geekbench 6 Single | — | 1,311 |
| Geekbench 6 Multi | — | 2,730 |
Memory & Platform
The Xeon X5647 uses the LGA1366 socket (PCIe 5.0), while the Core i3-6320 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1066 on the Xeon X5647 versus DDR4-2133 on the Core i3-6320 — the Core i3-6320 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. Memory channels: 3 (Xeon X5647) vs 2 (Core i3-6320). Chipset compatibility: Intel X58,Intel 5520 (Xeon X5647) and H110,H170,Z170,Q170,Q150,B150,B250,H270,Z270,Q270,Q250 (Core i3-6320).
| Feature | Xeon X5647 | Core i3-6320 |
|---|---|---|
| Socket | LGA1366 | LGA1151 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR3-1066 | DDR4-2133+33% |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization support: VT-x, VT-d (Xeon X5647) vs Yes (Core i3-6320). The Core i3-6320 includes integrated graphics (Intel HD Graphics 530), while the Xeon X5647 requires a dedicated GPU. Primary use case: Xeon X5647 targets Workstation. Direct competitor: Xeon X5647 rivals Core i7-980X.
| Feature | Xeon X5647 | Core i3-6320 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel HD Graphics 530 |
| Unlocked | No | — |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | Yes |
| Target Use | Workstation | — |
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