Core i3-7350K vs Xeon E5645
Core i3-7350K
Xeon E5645
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 i3-7350K is positioned at rank 636 and the Xeon E5645 is on rank 669, so the Core i3-7350K offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i3-7350K
Performance Per Dollar Xeon E5645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i3-7350K | Xeon E5645 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($45) | ⚠️ Higher cost ($294) |
| Longevity | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Core i3-7350K | Xeon E5645 |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+546%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($45) | ⚠️ Higher cost ($294) |
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 i3-7350K and Xeon E5645
Core i3-7350K
The Core i3-7350K is manufactured by Intel. It was released in 3 January 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 2 cores and 4 threads. Base frequency is 4.2 GHz, with boost up to 4.2 GHz. L3 cache: 4 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 60 Watt. Memory support: DDR4. Passmark benchmark score: 4,886 points. Launch price was $179.
Xeon E5645
The Xeon E5645 is manufactured by Intel. It was released in 16 March 2010 (15 years ago). It is based on the Westmere-EP (2010−2011) architecture. It features 6 cores and 12 threads. Base frequency is 2.4 GHz, with boost up to 2.67 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 80 Watt. Memory support: DDR3. Passmark benchmark score: 4,942 points. Launch price was $294.
Processing Power
The Core i3-7350K packs 2 cores / 4 threads, while the Xeon E5645 offers 6 cores / 12 threads — the Xeon E5645 has 4 more cores. Boost clocks reach 4.2 GHz on the Core i3-7350K versus 2.67 GHz on the Xeon E5645 — a 44.5% clock advantage for the Core i3-7350K (base: 4.2 GHz vs 2.4 GHz). The Core i3-7350K uses the Kaby Lake (2016−2019) architecture (14 nm), while the Xeon E5645 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Core i3-7350K scores 4,886 against the Xeon E5645's 4,942 — a 1.1% lead for the Xeon E5645. L3 cache: 4 MB (total) on the Core i3-7350K vs 12 MB (total) on the Xeon E5645.
| Feature | Core i3-7350K | Xeon E5645 |
|---|---|---|
| Cores / Threads | 2 / 4 | 6 / 12+200% |
| Boost Clock | 4.2 GHz+57% | 2.67 GHz |
| Base Clock | 4.2 GHz+75% | 2.4 GHz |
| L3 Cache | 4 MB (total) | 12 MB (total)+200% |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Kaby Lake (2016−2019) | Westmere-EP (2010−2011) |
| PassMark | 4,886 | 4,942+1% |
| Cinebench R23 Multi | 3,100 | — |
| Geekbench 6 Single | 1,298 | — |
| Geekbench 6 Multi | 2,740 | — |
Memory & Platform
The Core i3-7350K uses the LGA1151 socket (PCIe 3.0), while the Xeon E5645 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Core i3-7350K versus DDR3-1333 on the Xeon E5645 — the Core i3-7350K supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon E5645 supports up to 288 GB of RAM compared to 64 GB — 127.3% more capacity for professional workloads. Memory channels: 2 (Core i3-7350K) vs 3 (Xeon E5645). PCIe lanes: 16 (Core i3-7350K) vs 0 (Xeon E5645) — the Core i3-7350K offers 16 more lanes for additional GPUs or NVMe drives.
| Feature | Core i3-7350K | Xeon E5645 |
|---|---|---|
| Socket | LGA1151 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2400+33% | DDR3-1333 |
| Max RAM Capacity | 64 GB | 288 GB+350% |
| RAM Channels | 2 | 3+50% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Virtualization support: true (Core i3-7350K) vs VT-x (Xeon E5645). The Core i3-7350K includes integrated graphics (Intel HD Graphics 630), while the Xeon E5645 requires a dedicated GPU. Primary use case: Xeon E5645 targets Server.
| Feature | Core i3-7350K | Xeon E5645 |
|---|---|---|
| Integrated GPU | Yes | No |
| IGPU Model | Intel HD Graphics 630 | — |
| Unlocked | — | No |
| AVX-512 | No | No |
| Virtualization | true | VT-x |
| Target Use | — | Server |
Value Analysis
The Core i3-7350K launched at $179 MSRP, while the Xeon E5645 debuted at $294.
| Feature | Core i3-7350K | Xeon E5645 |
|---|---|---|
| MSRP | $179-39% | $294 |
| Avg Price (30d) | $45 | — |
| Release Date | 2017 | 2010 |
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