CPU
GPU
Xeon L5638
Atom C3708
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 L5638 is positioned at rank 644 and the Atom C3708 is on rank 615, so the Atom C3708 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon L5638
Performance Per Dollar Atom C3708
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon L5638 | Atom C3708 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Westmere-EP (2010−2011) / 32 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Xeon L5638 | Atom C3708 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 L5638 and Atom C3708
Xeon L5638
The Xeon L5638 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 GHz, with boost up to 2.4 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: 3,707 points. Launch price was $90.
Atom C3708
The Atom C3708 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 1.7 GHz, with boost up to 1.7 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 17 Watt. Memory support: DDR4: 2133. Passmark benchmark score: 3,750 points. Launch price was $209.
Processing Power
The Xeon L5638 packs 6 cores / 12 threads, while the Atom C3708 offers 8 cores / 8 threads — the Atom C3708 has 2 more cores. Boost clocks reach 2.4 GHz on the Xeon L5638 versus 1.7 GHz on the Atom C3708 — a 34.1% clock advantage for the Xeon L5638 (base: 2 GHz vs 1.7 GHz). The Xeon L5638 uses the Westmere-EP (2010−2011) architecture (32 nm), while the Atom C3708 uses Goldmont (2016−2017) (14 nm). In PassMark, the Xeon L5638 scores 3,707 against the Atom C3708's 3,750 — a 1.2% lead for the Atom C3708. L3 cache: 12 MB (total) on the Xeon L5638 vs 16 MB on the Atom C3708.
| Feature | Xeon L5638 | Atom C3708 |
|---|---|---|
| Cores / Threads | 6 / 12 | 8 / 8+33% |
| Boost Clock | 2.4 GHz+41% | 1.7 GHz |
| Base Clock | 2 GHz+18% | 1.7 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 | 3,707 | 3,750+1% |
Memory & Platform
The Xeon L5638 uses the LGA1366 socket (PCIe 4.0), while the Atom C3708 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon L5638 | Atom C3708 |
|---|---|---|
| Socket | LGA1366 | FCBGA1310 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2133 |
| Max RAM Capacity | — | 256 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 16 |
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