Xeon E3-1225 vs Atom C3958
Xeon E3-1225
Atom C3958
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 E3-1225 is positioned at rank 654 and the Atom C3958 is on rank 902, so the Xeon E3-1225 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E3-1225
Performance Per Dollar Atom C3958
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1225 | Atom C3958 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($205) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E3-1225 | Atom C3958 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($205) | ✅ 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 E3-1225 and Atom C3958
Xeon E3-1225
The Xeon E3-1225 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.4 GHz. L3 cache: 6 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 3,903 points. Launch price was $150.
Atom C3958
The Atom C3958 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 16 cores and 16 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 31 Watt. Memory support: DDR4: 2400. Passmark benchmark score: 3,929 points. Launch price was $449.
Processing Power
The Xeon E3-1225 packs 4 cores / 4 threads, while the Atom C3958 offers 16 cores / 16 threads — the Atom C3958 has 12 more cores. Boost clocks reach 3.4 GHz on the Xeon E3-1225 versus 2 GHz on the Atom C3958 — a 51.9% clock advantage for the Xeon E3-1225 (base: 3.1 GHz vs 2 GHz). The Xeon E3-1225 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Atom C3958 uses Goldmont (2016−2017) (14 nm). In PassMark, the Xeon E3-1225 scores 3,903 against the Atom C3958's 3,929 — a 0.7% lead for the Atom C3958. L3 cache: 6 MB (total) on the Xeon E3-1225 vs 16 MB on the Atom C3958.
| Feature | Xeon E3-1225 | Atom C3958 |
|---|---|---|
| Cores / Threads | 4 / 4 | 16 / 16+300% |
| Boost Clock | 3.4 GHz+70% | 2 GHz |
| Base Clock | 3.1 GHz+55% | 2 GHz |
| L3 Cache | 6 MB (total) | 16 MB+167% |
| L2 Cache | 256 kB (per core) | 16 MB+6300% |
| Process | 32 nm | 14 nm-56% |
| Architecture | Sandy Bridge (2011−2013) | Goldmont (2016−2017) |
| PassMark | 3,903 | 3,929 |
Memory & Platform
The Xeon E3-1225 uses the LGA1155 socket (PCIe 2.0), while the Atom C3958 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1225 | Atom C3958 |
|---|---|---|
| Socket | LGA1155 | FCBGA1310 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | — | DDR4-2400 |
| Max RAM Capacity | — | 256 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 12 |
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