CPU
GPU
Core i5-3340
Core i3-8140U
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 i5-3340 is positioned at rank 720 and the Core i3-8140U is on rank 530, so the Core i3-8140U offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-3340
Performance Per Dollar Core i3-8140U
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-3340 | Core i3-8140U |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($15) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Legacy / 22 nm) | ✨ Modern (Legacy / 14 nm) |
💎 Value Proposition
| Insight | Core i5-3340 | Core i3-8140U |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($15) | ✅ 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 i5-3340 and Core i3-8140U
Core i5-3340
The Core i5-3340 is manufactured by Intel. It was released in 1 July 2013 (12 years ago). It features 4 cores and 4 threads. Base frequency is 3.1 GHz, with boost up to 3.3 GHz. L3 cache: 6 MB Intel® Smart Cache. Built on 22 nm process technology. Socket: LGA1155. Thermal design power (TDP): 77 Watt. Memory support: DDR3-1333, DDR3-1600. Passmark benchmark score: 4,249 points. Launch price was $69.
Core i3-8140U
The Core i3-8140U is manufactured by Intel. It was released in 1 October 2019 (6 years ago). It features 2 cores and 4 threads. Base frequency is 2.1 GHz, with boost up to 3.9 GHz. L3 cache: 4 MB Intel® Smart Cache. Built on 14 nm process technology. Socket: FCBGA1528. Thermal design power (TDP): 15 Watt. Memory support: DDR4-2400, LPDDR3-2133. Passmark benchmark score: 4,227 points. Launch price was $69.
Processing Power
The Core i5-3340 packs 4 cores / 4 threads, while the Core i3-8140U offers 2 cores / 4 threads — the Core i5-3340 has 2 more cores. Boost clocks reach 3.3 GHz on the Core i5-3340 versus 3.9 GHz on the Core i3-8140U — a 16.7% clock advantage for the Core i3-8140U (base: 3.1 GHz vs 2.1 GHz). In PassMark, the Core i5-3340 scores 4,249 against the Core i3-8140U's 4,227 — a 0.5% lead for the Core i5-3340. L3 cache: 6 MB Intel® Smart Cache on the Core i5-3340 vs 4 MB Intel® Smart Cache on the Core i3-8140U.
| Feature | Core i5-3340 | Core i3-8140U |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 4 |
| Boost Clock | 3.3 GHz | 3.9 GHz+18% |
| Base Clock | 3.1 GHz+48% | 2.1 GHz |
| L3 Cache | 6 MB Intel® Smart Cache+50% | 4 MB Intel® Smart Cache |
| Process | 22 nm | 14 nm-36% |
| PassMark | 4,249 | 4,227 |
| Geekbench 6 Single | — | 1,225 |
Memory & Platform
The Core i5-3340 uses the LGA1155 socket (PCIe 3.0), while the Core i3-8140U uses FCBGA1528 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-3340 | Core i3-8140U |
|---|---|---|
| Socket | LGA1155 | FCBGA1528 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2400 |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core i5-3340) / VT-x, VT-d, EPT (Core i3-8140U). The Core i3-8140U includes integrated graphics (UHD Graphics 620), while the Core i5-3340 requires a dedicated GPU. Primary use case: Core i3-8140U targets Mainstream Laptop. Direct competitor: Core i3-8140U rivals Ryzen 3 3300U.
| Feature | Core i5-3340 | Core i3-8140U |
|---|---|---|
| Integrated GPU | — | Yes |
| IGPU Model | — | UHD Graphics 620 |
| Unlocked | — | No |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d, EPT |
| Target Use | — | Mainstream Laptop |
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