
Xeon W3565 vs Atom Z3740

Xeon W3565

Atom Z3740
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 W3565 is positioned at rank 827 and the Atom Z3740 is on rank 172, so the Atom Z3740 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon W3565
Performance Per Dollar Atom Z3740
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W3565 | Atom Z3740 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($69) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Bloomfield (2008−2010) / 45 nm) | 🛑 Legacy (Bay Trail-T (2013−2014) / 22 nm) |
💎 Value Proposition
| Insight | Xeon W3565 | Atom Z3740 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($69) | ✅ More affordable ($0) |
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 W3565 and Atom Z3740

Xeon W3565
The Xeon W3565 is manufactured by Intel. It was released in 1 November 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 4 cores and 8 threads. Base frequency is 3.2 GHz, with boost up to 3.46 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 3,391 points. Launch price was $70.

Atom Z3740
The Atom Z3740 is manufactured by Intel. It was released in 27 September 2013 (12 years ago). It is based on the Bay Trail-T (2013−2014) architecture. It features 4 cores and 4 threads. Base frequency is 1.33 GHz, with boost up to 1.86 GHz. L3 cache: 0 kB. L2 cache: 512K (per core). Built on 22 nm process technology. Socket: UTFCBGA1380. Thermal design power (TDP): 2 Watt. Memory support: DDR3. Passmark benchmark score: 3,380 points. Launch price was $32.
Processing Power
The Xeon W3565 packs 4 cores / 8 threads, matching the Atom Z3740's 4 cores. Boost clocks reach 3.46 GHz on the Xeon W3565 versus 1.86 GHz on the Atom Z3740 — a 60.2% clock advantage for the Xeon W3565 (base: 3.2 GHz vs 1.33 GHz). The Xeon W3565 uses the Bloomfield (2008−2010) architecture (45 nm), while the Atom Z3740 uses Bay Trail-T (2013−2014) (22 nm). In PassMark, the Xeon W3565 scores 3,391 against the Atom Z3740's 3,380 — a 0.3% lead for the Xeon W3565. L3 cache: 8 MB (total) on the Xeon W3565 vs 0 kB on the Atom Z3740.
| Feature | Xeon W3565 | Atom Z3740 |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 4 |
| Boost Clock | 3.46 GHz+86% | 1.86 GHz |
| Base Clock | 3.2 GHz+141% | 1.33 GHz |
| L3 Cache | 8 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 512K (per core)+100% |
| Process | 45 nm | 22 nm-51% |
| Architecture | Bloomfield (2008−2010) | Bay Trail-T (2013−2014) |
| PassMark | 3,391 | 3,380 |
| Geekbench 6 Single | 513 | — |
| Geekbench 6 Multi | 1,726 | — |
Memory & Platform
The Xeon W3565 uses the LGA1366 socket (PCIe 5.0), while the Atom Z3740 uses UTFCBGA1380 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1066 memory speed. The Xeon W3565 supports up to 24 GB of RAM compared to 4 GB — 142.9% more capacity for professional workloads. Memory channels: 3 (Xeon W3565) vs 2 (Atom Z3740). PCIe lanes: 36 (Xeon W3565) vs 0 (Atom Z3740) — the Xeon W3565 offers 36 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X58 (Xeon W3565) and Intel FC-UTBGA592 (Atom Z3740).
| Feature | Xeon W3565 | Atom Z3740 |
|---|---|---|
| Socket | LGA1366 | UTFCBGA1380 |
| PCIe Generation | PCIe 5.0+150% | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | LPDDR3-1066 |
| Max RAM Capacity | 24 GB+500% | 4 GB |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ❌ |
| PCIe Lanes | 36 | 0 |
Advanced Features
Virtualization: Yes (Xeon W3565) / not specified (Atom Z3740). The Atom Z3740 includes integrated graphics (Intel HD Graphics (Bay Trail)), while the Xeon W3565 requires a dedicated GPU.
| Feature | Xeon W3565 | Atom Z3740 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Intel HD Graphics (Bay Trail) |
| AVX-512 | No | — |
| Virtualization | Yes | — |
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