Atom C3955 vs Phenom II X6 1100T BE
Atom C3955
Phenom II X6 1100T BE
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 C3955 is positioned at rank 765 and the Phenom II X6 1100T BE is on rank 22, so the Phenom II X6 1100T BE offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Atom C3955
Performance Per Dollar Phenom II X6 1100T BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Atom C3955 | Phenom II X6 1100T BE |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($265) |
| Longevity | ✨ Modern (Goldmont (2016−2017) / 14 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Atom C3955 | Phenom II X6 1100T BE |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($265) |
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 C3955 and Phenom II X6 1100T BE
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.
Phenom II X6 1100T BE
The Phenom II X6 1100T BE is manufactured by AMD. It was released in 2009-01-01. It is based on the Thuban (2010) architecture. It features 6 cores and 6 threads. Base frequency is 3.3 GHz, with boost up to 3.7 GHz. L3 cache: 6 MB (total). L2 cache: 512 kB (per core). Built on 45 nm process technology. Socket: AM3. Thermal design power (TDP): 125 Watt. Memory support: DDR3. Passmark benchmark score: 5,745 points. Launch price was $149.
Processing Power
The Atom C3955 packs 16 cores / 16 threads, while the Phenom II X6 1100T BE offers 6 cores / 6 threads — the Atom C3955 has 10 more cores. Boost clocks reach 2.4 GHz on the Atom C3955 versus 3.7 GHz on the Phenom II X6 1100T BE — a 42.6% clock advantage for the Phenom II X6 1100T BE (base: 2.1 GHz vs 3.3 GHz). The Atom C3955 uses the Goldmont (2016−2017) architecture (14 nm), while the Phenom II X6 1100T BE uses Thuban (2010) (45 nm). In PassMark, the Atom C3955 scores 5,803 against the Phenom II X6 1100T BE's 5,745 — a 1% lead for the Atom C3955. L3 cache: 16 MB on the Atom C3955 vs 6 MB (total) on the Phenom II X6 1100T BE.
| Feature | Atom C3955 | Phenom II X6 1100T BE |
|---|---|---|
| Cores / Threads | 16 / 16+167% | 6 / 6 |
| Boost Clock | 2.4 GHz | 3.7 GHz+54% |
| Base Clock | 2.1 GHz | 3.3 GHz+57% |
| L3 Cache | 16 MB+167% | 6 MB (total) |
| L2 Cache | 16 MB+3100% | 512 kB (per core) |
| Process | 14 nm-69% | 45 nm |
| Architecture | Goldmont (2016−2017) | Thuban (2010) |
| PassMark | 5,803+1% | 5,745 |
| Geekbench 6 Single | — | 508 |
Memory & Platform
The Atom C3955 uses the FCBGA1310 socket (PCIe 3.0), while the Phenom II X6 1100T BE uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR4-2400 on the Atom C3955 versus DDR3-1333 / DDR2-1066 on the Phenom II X6 1100T BE — the Atom C3955 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Atom C3955 supports up to 256 GB of RAM compared to 32 GB — 155.6% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 12 (Atom C3955) vs 16 (Phenom II X6 1100T BE) — the Phenom II X6 1100T BE offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel FCBGA1310 (Atom C3955) and AMD 870,880G,890FX,970,990FX (Phenom II X6 1100T BE).
| Feature | Atom C3955 | Phenom II X6 1100T BE |
|---|---|---|
| Socket | FCBGA1310 | AM3 |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
| Max RAM Speed | DDR4-2400+33% | DDR3-1333 / DDR2-1066 |
| Max RAM Capacity | 256 GB+700% | 32 GB |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 12 | 16+33% |
Advanced Features
Virtualization: not specified (Atom C3955) / AMD-V (Phenom II X6 1100T BE). Primary use case: Phenom II X6 1100T BE targets Enthusiast Legacy.
| Feature | Atom C3955 | Phenom II X6 1100T BE |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Enthusiast Legacy |
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