Atom C3758 vs Xeon L5640
Atom C3758
Xeon L5640
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 Atom C3758 is positioned at rank 585 and the Xeon L5640 is on rank 994, 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 Atom C3758
Performance Per Dollar Xeon L5640
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom C3758 | Xeon L5640 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($996) |
| Longevity | ✨ Modern (Goldmont (2016−2017) / 14 nm) | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) |
💎 Value Proposition
| Insight | Atom C3758 | Xeon L5640 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($996) |
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 Atom C3758 and Xeon L5640
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.
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.
Processing Power
The Atom C3758 packs 8 cores / 8 threads, while the Xeon L5640 offers 6 cores / 12 threads — the Atom C3758 has 2 more cores. Boost clocks reach 2.2 GHz on the Atom C3758 versus 2.8 GHz on the Xeon L5640 — a 24% clock advantage for the Xeon L5640 (base: 2.2 GHz vs 2.26 GHz). The Atom C3758 uses the Goldmont (2016−2017) architecture (14 nm), while the Xeon L5640 uses Westmere-EP (2010−2011) (32 nm). In PassMark, the Atom C3758 scores 4,614 against the Xeon L5640's 4,659 — a 1% lead for the Xeon L5640. L3 cache: 16 MB on the Atom C3758 vs 12 MB (total) on the Xeon L5640.
| Feature | Atom C3758 | Xeon L5640 |
|---|---|---|
| Cores / Threads | 8 / 8+33% | 6 / 12 |
| Boost Clock | 2.2 GHz | 2.8 GHz+27% |
| Base Clock | 2.2 GHz | 2.26 GHz+3% |
| L3 Cache | 16 MB+33% | 12 MB (total) |
| L2 Cache | 16 MB+6300% | 256 kB (per core) |
| Process | 14 nm-56% | 32 nm |
| Architecture | Goldmont (2016−2017) | Westmere-EP (2010−2011) |
| PassMark | 4,614 | 4,659 |
| Geekbench 6 Single | 400 | — |
| Geekbench 6 Multi | 2,400 | — |
Memory & Platform
The Atom C3758 uses the FCBGA1310 socket (PCIe 3.0), while the Xeon L5640 uses LGA1366 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Atom C3758 versus DDR3 1333 MHz on the Xeon L5640 — 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: 2 (Atom C3758) vs 3 (Xeon L5640). PCIe lanes: 16 (Atom C3758) vs 0 (Xeon L5640) — the Atom C3758 offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: SoC (Atom C3758) and Intel 5520,Intel X58 (Xeon L5640).
| Feature | Atom C3758 | Xeon L5640 |
|---|---|---|
| Socket | FCBGA1310 | LGA1366 |
| PCIe Generation | PCIe 3.0 | PCIe 5.0+67% |
| Max RAM Speed | DDR4-2400+33% | DDR3 1333 MHz |
| Max RAM Capacity | 256 GB | 288 GB+13% |
| RAM Channels | 2 | 3+50% |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 16 | 0 |
Advanced Features
Neither processor supports overclocking. Virtualization support: VT-x, VT-d (Atom C3758) vs true (Xeon L5640). Primary use case: Atom C3758 targets Server/Embedded, Xeon L5640 targets Server Low Power.
| Feature | Atom C3758 | Xeon L5640 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | No | No |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d | true |
| Target Use | Server/Embedded | Server Low Power |
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