Phenom II X6 1100T BE vs Atom C3955
Phenom II X6 1100T BE
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 Phenom II X6 1100T BE is positioned at rank 22 and the Atom C3955 is on rank 765, 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 Phenom II X6 1100T BE
Performance Per Dollar Atom C3955
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Phenom II X6 1100T BE | Atom C3955 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($265) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Thuban (2010) / 45 nm) | ✨ Modern (Goldmont (2016−2017) / 14 nm) |
💎 Value Proposition
| Insight | Phenom II X6 1100T BE | Atom C3955 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($265) | ✅ 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 Phenom II X6 1100T BE and Atom C3955
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.
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 Phenom II X6 1100T BE packs 6 cores / 6 threads, while the Atom C3955 offers 16 cores / 16 threads — the Atom C3955 has 10 more cores. Boost clocks reach 3.7 GHz on the Phenom II X6 1100T BE versus 2.4 GHz on the Atom C3955 — a 42.6% clock advantage for the Phenom II X6 1100T BE (base: 3.3 GHz vs 2.1 GHz). The Phenom II X6 1100T BE uses the Thuban (2010) architecture (45 nm), while the Atom C3955 uses Goldmont (2016−2017) (14 nm). In PassMark, the Phenom II X6 1100T BE scores 5,745 against the Atom C3955's 5,803 — a 1% lead for the Atom C3955. L3 cache: 6 MB (total) on the Phenom II X6 1100T BE vs 16 MB on the Atom C3955.
| Feature | Phenom II X6 1100T BE | Atom C3955 |
|---|---|---|
| Cores / Threads | 6 / 6 | 16 / 16+167% |
| Boost Clock | 3.7 GHz+54% | 2.4 GHz |
| Base Clock | 3.3 GHz+57% | 2.1 GHz |
| L3 Cache | 6 MB (total) | 16 MB+167% |
| L2 Cache | 512 kB (per core) | 16 MB+3100% |
| Process | 45 nm | 14 nm-69% |
| Architecture | Thuban (2010) | Goldmont (2016−2017) |
| PassMark | 5,745 | 5,803+1% |
| Geekbench 6 Single | 508 | — |
Memory & Platform
The Phenom II X6 1100T BE uses the AM3 socket (PCIe 2.0), while the Atom C3955 uses FCBGA1310 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1333 / DDR2-1066 on the Phenom II X6 1100T BE versus DDR4-2400 on the Atom C3955 — 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: 16 (Phenom II X6 1100T BE) vs 12 (Atom C3955) — the Phenom II X6 1100T BE offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: AMD 870,880G,890FX,970,990FX (Phenom II X6 1100T BE) and Intel FCBGA1310 (Atom C3955).
| Feature | Phenom II X6 1100T BE | Atom C3955 |
|---|---|---|
| Socket | AM3 | FCBGA1310 |
| PCIe Generation | PCIe 2.0 | PCIe 3.0+50% |
| Max RAM Speed | DDR3-1333 / DDR2-1066 | DDR4-2400+33% |
| Max RAM Capacity | 32 GB | 256 GB+700% |
| RAM Channels | 2 | 2 |
| ECC Support | ✅ | ✅ |
| PCIe Lanes | 16+33% | 12 |
Advanced Features
Virtualization: AMD-V (Phenom II X6 1100T BE) / not specified (Atom C3955). Primary use case: Phenom II X6 1100T BE targets Enthusiast Legacy.
| Feature | Phenom II X6 1100T BE | Atom C3955 |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Enthusiast Legacy | — |
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