Xeon L5640 vs Atom C3758
Xeon L5640
Atom C3758
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 L5640 is positioned at rank 994 and the Atom C3758 is on rank 585, so the Atom C3758 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5640
Performance Per Dollar Atom C3758
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5640 | Atom C3758 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($996) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Xeon L5640 | Atom C3758 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($996) | ✅ 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 L5640 and Atom C3758
Xeon L5640
The Xeon L5640 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 2.26 GHz, with boost up to 2.8 GHz. L3 cache: 12 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1366. Thermal design power (TDP): 60 Watt. Memory support: DDR3. Passmark benchmark score: 4,659 points. Launch price was $200.
Atom C3758
The Atom C3758 is manufactured by Intel. It was released in 15 August 2017 (8 years ago). It is based on the Goldmont (2016−2017) architecture. It features 8 cores and 8 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 25 Watt. Memory support: DDR4: 2400. Passmark benchmark score: 4,614 points. Launch price was $193.
Processing Power
The Xeon L5640 packs 6 cores / 12 threads, while the Atom C3758 offers 8 cores / 8 threads — the Atom C3758 has 2 more cores. Boost clocks reach 2.8 GHz on the Xeon L5640 versus 2.2 GHz on the Atom C3758 — a 24% clock advantage for the Xeon L5640 (base: 2.26 GHz vs 2.2 GHz). The Xeon L5640 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Atom C3758 uses Goldmont (2016−2017) (14 nm). In PassMark, the Xeon L5640 scores 4,659 against the Atom C3758's 4,614 — a 1% lead for the Xeon L5640. L3 cache: 12 MB (total) on the Xeon L5640 vs 16 MB on the Atom C3758.
| Feature | Xeon L5640 | Atom C3758 |
|---|---|---|
| Cores / Threads | 6 / 12 | 8 / 8+33% |
| Boost Clock | 2.8 GHz+27% | 2.2 GHz |
| Base Clock | 2.26 GHz+3% | 2.2 GHz |
| L3 Cache | 12 MB (total) | 16 MB+33% |
| L2 Cache | 256 kB (per core) | 16 MB+6300% |
| Process | 32 nm | 14 nm-56% |
| Architecture | Westmere-EP (2010−2011) | Goldmont (2016−2017) |
| PassMark | 4,659 | 4,614 |
| Geekbench 6 Single | — | 400 |
| Geekbench 6 Multi | — | 2,400 |
Memory & Platform
The Xeon L5640 uses the LGA1366 socket (PCIe 5.0), while the Atom C3758 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3 1333 MHz on the Xeon L5640 versus DDR4-2400 on the Atom C3758 — the Xeon L5640 supports 199.9% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Xeon L5640 supports up to 288 GB of RAM compared to 256 GB — 11.8% more capacity for professional workloads. Memory channels: 3 (Xeon L5640) vs 2 (Atom C3758). PCIe lanes: 0 (Xeon L5640) vs 16 (Atom C3758) — the Atom C3758 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 5520,Intel X58 (Xeon L5640) and SoC (Atom C3758).
| Feature | Xeon L5640 | Atom C3758 |
|---|---|---|
| Socket | LGA1366 | FCBGA1310 |
| PCIe Generation | PCIe 5.0+67% | PCIe 3.0 |
| Max RAM Speed | DDR3 1333 MHz | DDR4-2400+33% |
| Max RAM Capacity | 288 GB+13% | 256 GB |
| RAM Channels | 3+50% | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Neither processor supports overclocking. Virtualization support: true (Xeon L5640) vs VT-x, VT-d (Atom C3758). Primary use case: Xeon L5640 targets Server Low Power, Atom C3758 targets Server/Embedded.
| Feature | Xeon L5640 | Atom C3758 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | true | VT-x, VT-d |
| Target Use | Server Low Power | Server/Embedded |
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