Core i7-3820 vs Core i3-1115G4
Core i7-3820
Core i3-1115G4
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 Core i3-1115G4 is on rank 567, so the Core i3-1115G4 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 Core i3-1115G4
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-3820 | Core i3-1115G4 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($30) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Sandy Bridge-E (2011−2013) / 32 nm) | ✨ Modern (Tiger Lake-UP3 (2020−2021) / 10 nm SuperFin) |
💎 Value Proposition
| Insight | Core i7-3820 | Core i3-1115G4 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($30) | ✅ 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 Core i7-3820 and Core i3-1115G4
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.
Core i3-1115G4
The Core i3-1115G4 is manufactured by Intel. It was released in 2 September 2020 (5 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 2 cores and 4 threads. Base frequency is 2.2 GHz, with boost up to 4.1 GHz. L3 cache: 6 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 15 Watt. Memory support: DDR4. Passmark benchmark score: 5,860 points. Launch price was $281.
Processing Power
The Core i7-3820 packs 4 cores / 8 threads, while the Core i3-1115G4 offers 2 cores / 4 threads — the Core i7-3820 has 2 more cores. Boost clocks reach 3.8 GHz on the Core i7-3820 versus 4.1 GHz on the Core i3-1115G4 — a 7.6% clock advantage for the Core i3-1115G4 (base: 3.6 GHz vs 2.2 GHz). The Core i7-3820 uses the Sandy Bridge-E (2011−2013) architecture (32 nm), while the Core i3-1115G4 uses Tiger Lake-UP3 (2020−2021) (10 nm SuperFin). In PassMark, the Core i7-3820 scores 5,787 against the Core i3-1115G4's 5,860 — a 1.3% lead for the Core i3-1115G4. Geekbench 6 single-core — the metric most relevant to gaming — records 624 vs 1,579, a 86.7% lead for the Core i3-1115G4 that directly translates to higher frame rates. L3 cache: 10240 kB (total) on the Core i7-3820 vs 6 MB (total) on the Core i3-1115G4.
| Feature | Core i7-3820 | Core i3-1115G4 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 4 |
| Boost Clock | 3.8 GHz | 4.1 GHz+8% |
| Base Clock | 3.6 GHz+64% | 2.2 GHz |
| L3 Cache | 10240 kB (total)+67% | 6 MB (total) |
| L2 Cache | 256 kB (per core) | 1.25 MB (per core)+400% |
| Process | 32 nm | 10 nm SuperFin-69% |
| Architecture | Sandy Bridge-E (2011−2013) | Tiger Lake-UP3 (2020−2021) |
| PassMark | 5,787 | 5,860+1% |
| Geekbench 6 Single | 624 | 1,579+153% |
Memory & Platform
The Core i7-3820 uses the LGA2011 socket (PCIe 2.0), while the Core i3-1115G4 uses FCBGA1449 (PCIe 4.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR3-1600 on the Core i7-3820 versus DDR4-3200 on the Core i3-1115G4 — the Core i3-1115G4 supports 28.6% faster memory, which can translate to measurable gains in memory-sensitive workloads. Both support up to 64 GB of RAM. Memory channels: 4 (Core i7-3820) vs 2 (Core i3-1115G4). PCIe lanes: 40 (Core i7-3820) vs 4 (Core i3-1115G4) — the Core i7-3820 offers 36 more lanes for additional GPUs or NVMe drives.
| Feature | Core i7-3820 | Core i3-1115G4 |
|---|---|---|
| Socket | LGA2011 | FCBGA1449 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | DDR3-1600 | DDR4-3200+33% |
| Max RAM Capacity | 64 GB | 64 GB |
| RAM Channels | 4+100% | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 40+900% | 4 |
Advanced Features
Only the Core i7-3820 has an unlocked multiplier for overclocking — a significant advantage for enthusiasts seeking extra performance. Only the Core i3-1115G4 supports AVX-512 instructions — important for machine learning and scientific applications. Both support VT-x, VT-d, EPT virtualization. The Core i3-1115G4 includes integrated graphics (UHD Graphics for 11th Gen (48 EU)), while the Core i7-3820 requires a dedicated GPU. Primary use case: Core i7-3820 targets HEDT Desktop, Core i3-1115G4 targets Mainstream Laptop. Direct competitor: Core i7-3820 rivals FX-8350; Core i3-1115G4 rivals Ryzen 3 5300U.
| Feature | Core i7-3820 | Core i3-1115G4 |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | None | UHD Graphics for 11th Gen (48 EU) |
| Unlocked | Yes | No |
| AVX-512 | No | Yes |
| Virtualization | VT-x, VT-d, EPT | VT-x, VT-d, EPT |
| Target Use | HEDT Desktop | Mainstream Laptop |
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