CPU
GPU
Core i7-3820
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 Core i7-3820 is positioned at rank 791 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 Core i7-3820
Performance Per Dollar Phenom II X6 1100T BE
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($30) | ⚠️ Higher cost ($265) |
| Longevity | 🛑 Legacy (Sandy Bridge-E (2011−2013) / 32 nm) | 🛑 Legacy (Thuban (2010) / 45 nm) |
💎 Value Proposition
| Insight | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+790%) | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($30) | ⚠️ 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 Core i7-3820 and Phenom II X6 1100T BE
Core i7-3820
The Core i7-3820 is manufactured by Intel. It was released in Fevereiro 2012 (13 years ago). It is based on the Sandy Bridge-E (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.6 GHz, with boost up to 3.8 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 5,787 points. Launch price was $400.
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 Core i7-3820 packs 4 cores / 8 threads, while the Phenom II X6 1100T BE offers 6 cores / 6 threads — the Phenom II X6 1100T BE has 2 more cores. Boost clocks reach 3.8 GHz on the Core i7-3820 versus 3.7 GHz on the Phenom II X6 1100T BE — a 2.7% clock advantage for the Core i7-3820 (base: 3.6 GHz vs 3.3 GHz). The Core i7-3820 uses the Sandy Bridge-E (2011−2013) architecture (32 nm), while the Phenom II X6 1100T BE uses Thuban (2010) (45 nm). In PassMark, the Core i7-3820 scores 5,787 against the Phenom II X6 1100T BE's 5,745 — a 0.7% lead for the Core i7-3820. Geekbench 6 single-core — the metric most relevant to gaming — records 624 vs 508, a 20.5% lead for the Core i7-3820 that directly translates to higher frame rates. L3 cache: 10240 kB (total) on the Core i7-3820 vs 6 MB (total) on the Phenom II X6 1100T BE.
| Feature | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| Cores / Threads | 4 / 8 | 6 / 6+50% |
| Boost Clock | 3.8 GHz+3% | 3.7 GHz |
| Base Clock | 3.6 GHz+9% | 3.3 GHz |
| L3 Cache | 10240 kB (total)+67% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 512 kB (per core)+100% |
| Process | 32 nm-29% | 45 nm |
| Architecture | Sandy Bridge-E (2011−2013) | Thuban (2010) |
| PassMark | 5,787 | 5,745 |
| Geekbench 6 Single | 624+23% | 508 |
Memory & Platform
The Core i7-3820 uses the LGA2011 socket (PCIe 2.0), while the Phenom II X6 1100T BE uses AM3 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1600 memory speed. The Core i7-3820 supports up to 64 GB of RAM compared to 32 GB — 66.7% more capacity for professional workloads. Memory channels: 4 (Core i7-3820) vs 2 (Phenom II X6 1100T BE). PCIe lanes: 40 (Core i7-3820) vs 16 (Phenom II X6 1100T BE) — the Core i7-3820 offers 24 more lanes for additional GPUs or NVMe drives. Chipset compatibility: X79 (Core i7-3820) and AMD 870,880G,890FX,970,990FX (Phenom II X6 1100T BE).
| Feature | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| Socket | LGA2011 | AM3 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1600 | DDR3-1333 / DDR2-1066 |
| Max RAM Capacity | 64 GB+100% | 32 GB |
| RAM Channels | 4+100% | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 40+150% | 16 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Virtualization support: VT-x, VT-d, EPT (Core i7-3820) vs AMD-V (Phenom II X6 1100T BE). Primary use case: Core i7-3820 targets HEDT Desktop, Phenom II X6 1100T BE targets Enthusiast Legacy. Direct competitor: Core i7-3820 rivals FX-8350.
| Feature | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| Integrated GPU | No | No |
| IGPU Model | None | — |
| Unlocked | Yes | Yes |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | AMD-V |
| Target Use | HEDT Desktop | Enthusiast Legacy |
Value Analysis
The Core i7-3820 launched at $286 MSRP, while the Phenom II X6 1100T BE debuted at $265.
| Feature | Core i7-3820 | Phenom II X6 1100T BE |
|---|---|---|
| MSRP | $286 | $265-7% |
| Avg Price (30d) | $30 | — |
| Release Date | 2012 | 2010 |
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