Xeon E3-1225 v6 vs Atom C3955
Xeon E3-1225 v6
Atom C3955
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 v6 is positioned at rank 503 and the Atom C3955 is on rank 765, so the Xeon E3-1225 v6 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 v6
Performance Per Dollar Atom C3955
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1225 v6 | Atom C3955 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E3-1225 v6 | Atom C3955 |
|---|---|---|
| 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 E3-1225 v6 and Atom C3955
Xeon E3-1225 v6
The Xeon E3-1225 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 73 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 5,740 points. Launch price was $213.
Atom C3955
The Atom C3955 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 2.1 GHz, with boost up to 2.4 GHz. L3 cache: 16 MB. L2 cache: 16 MB. Built on 14 nm process technology. Socket: FCBGA1310. Thermal design power (TDP): 32 Watt. Memory support: DDR4: 2400. Passmark benchmark score: 5,803 points. Launch price was $434.
Processing Power
The Xeon E3-1225 v6 packs 4 cores / 4 threads, while the Atom C3955 offers 16 cores / 16 threads — the Atom C3955 has 12 more cores. Boost clocks reach 3.7 GHz on the Xeon E3-1225 v6 versus 2.4 GHz on the Atom C3955 — a 42.6% clock advantage for the Xeon E3-1225 v6 (base: 3.3 GHz vs 2.1 GHz). The Xeon E3-1225 v6 uses the Kaby Lake (2016−2019) architecture (14 nm), while the Atom C3955 uses Goldmont (2016−2017) (14 nm). In PassMark, the Xeon E3-1225 v6 scores 5,740 against the Atom C3955's 5,803 — a 1.1% lead for the Atom C3955. L3 cache: 8 MB on the Xeon E3-1225 v6 vs 16 MB on the Atom C3955.
| Feature | Xeon E3-1225 v6 | Atom C3955 |
|---|---|---|
| Cores / Threads | 4 / 4 | 16 / 16+300% |
| Boost Clock | 3.7 GHz+54% | 2.4 GHz |
| Base Clock | 3.3 GHz+57% | 2.1 GHz |
| L3 Cache | 8 MB | 16 MB+100% |
| L2 Cache | 1 MB | 16 MB+1500% |
| Process | 14 nm | 14 nm |
| Architecture | Kaby Lake (2016−2019) | Goldmont (2016−2017) |
| PassMark | 5,740 | 5,803+1% |
Memory & Platform
The Xeon E3-1225 v6 uses the LGA1151 socket (PCIe 3.0), while the Atom C3955 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1225 v6 | Atom C3955 |
|---|---|---|
| Socket | LGA1151 | FCBGA1310 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2400 |
| Max RAM Capacity | — | 256 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 12 |
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