
Core i5-1155G7 vs Core i3-N305

Core i5-1155G7

Core i3-N305
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 i5-1155G7 is positioned at rank 677 and the Core i3-N305 is on rank 681, so the Core i5-1155G7 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-1155G7
Performance Per Dollar Core i3-N305
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-1155G7 | Core i3-N305 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($309) |
| Longevity | ✨ Modern (Tiger Lake-UP3 (2020−2021) / 10 nm SuperFin) | ✨ Modern (Alder Lake-N (2023) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core i5-1155G7 | Core i3-N305 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($309) |
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 i5-1155G7 and Core i3-N305

Core i5-1155G7
The Core i5-1155G7 is manufactured by Intel. It was released in 31 May 2021 (4 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 9,686 points. Launch price was $309.

Core i3-N305
The Core i3-N305 is manufactured by Intel. It was released in 3 January 2023 (2 years ago). It is based on the Alder Lake-N (2023) architecture. It features 8 cores and 8 threads. Base frequency is 0.1 GHz, with boost up to 3.8 GHz. L3 cache: 6 MB (total). L2 cache: 2 MB (per module). Built on Intel 7 nm process technology. Socket: FCBGA1264. Thermal design power (TDP): 15 Watt. Memory support: DDR4, DDR5. Passmark benchmark score: 9,600 points. Launch price was $309.
Processing Power
The Core i5-1155G7 packs 4 cores / 8 threads, while the Core i3-N305 offers 8 cores / 8 threads — the Core i3-N305 has 4 more cores. Boost clocks reach 4.5 GHz on the Core i5-1155G7 versus 3.8 GHz on the Core i3-N305 — a 16.9% clock advantage for the Core i5-1155G7 (base: 2.5 GHz vs 0.1 GHz). The Core i5-1155G7 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Core i3-N305 uses Alder Lake-N (2023) (Intel 7 nm). In PassMark, the Core i5-1155G7 scores 9,686 against the Core i3-N305's 9,600 — a 0.9% lead for the Core i5-1155G7. L3 cache: 8 MB (total) on the Core i5-1155G7 vs 6 MB (total) on the Core i3-N305.
| Feature | Core i5-1155G7 | Core i3-N305 |
|---|---|---|
| Cores / Threads | 4 / 8 | 8 / 8+100% |
| Boost Clock | 4.5 GHz+18% | 3.8 GHz |
| Base Clock | 2.5 GHz+2400% | 0.1 GHz |
| L3 Cache | 8 MB (total)+33% | 6 MB (total) |
| L2 Cache | 1.25 MB (per core) | 2 MB (per module)+60% |
| Process | 10 nm SuperFin | Intel 7 nm-30% |
| Architecture | Tiger Lake-UP3 (2020−2021) | Alder Lake-N (2023) |
| PassMark | 9,686 | 9,600 |
Memory & Platform
The Core i5-1155G7 uses the FCBGA1449 socket (PCIe 4.0), while the Core i3-N305 uses FCBGA1264 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Core i5-1155G7 | Core i3-N305 |
|---|---|---|
| Socket | FCBGA1449 | FCBGA1264 |
| PCIe Generation | PCIe 4.0 | PCIe 5.0+25% |
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