CPU
GPU
Core i5-580M
Core i3-2120
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 i5-580M is positioned at rank 1215 and the Core i3-2120 is on rank 911, so the Core i3-2120 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-580M
Performance Per Dollar Core i3-2120
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-580M | Core i3-2120 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($25) |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core i5-580M | Core i3-2120 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($25) |
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 i5-580M and Core i3-2120
Core i5-580M
The Core i5-580M is manufactured by Intel. It was released in 26 September 2010 (15 years ago). It is based on the Arrandale (2010−2011) architecture. It features 2 cores and 4 threads. Base frequency is 2.66 GHz, with boost up to 3.33 GHz. L3 cache: 3 MB (total). L2 cache: 256K (per core). Built on 32 nm process technology. Socket: PGA988. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,983 points. Launch price was $266.
Core i3-2120
The Core i3-2120 is manufactured by Intel. It was released in 20 February 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 4 threads. Base frequency is 3.3 GHz, with boost up to 3.3 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,979 points. Launch price was $95.
Processing Power
Both the Core i5-580M and Core i3-2120 share an identical 2-core/4-thread configuration. Boost clocks reach 3.33 GHz on the Core i5-580M versus 3.3 GHz on the Core i3-2120 — a 0.9% clock advantage for the Core i5-580M (base: 2.66 GHz vs 3.3 GHz). The Core i5-580M uses the Arrandale (2010−2011) architecture (32 nm), while the Core i3-2120 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core i5-580M scores 1,983 against the Core i3-2120's 1,979 — a 0.2% lead for the Core i5-580M. Geekbench 6 single-core — the metric most relevant to gaming — records 445 vs 534, a 18.2% lead for the Core i3-2120 that directly translates to higher frame rates. Both processors carry 3 MB (total) of L3 cache.
| Feature | Core i5-580M | Core i3-2120 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 4 |
| Boost Clock | 3.33 GHz | 3.3 GHz |
| Base Clock | 2.66 GHz | 3.3 GHz+24% |
| L3 Cache | 3 MB (total) | 3 MB (total) |
| L2 Cache | 256K (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Arrandale (2010−2011) | Sandy Bridge (2011−2013) |
| PassMark | 1,983 | 1,979 |
| Cinebench R23 Multi | — | 1,073 |
| Geekbench 6 Single | 445 | 534+20% |
| Geekbench 6 Multi | — | 1,140 |
Memory & Platform
The Core i5-580M uses the PGA988 socket (PCIe 2.0), while the Core i3-2120 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard. Both support up to DDR3-1066 memory speed. The Core i3-2120 supports up to 32 GB of RAM compared to 8 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. Both provide 16 PCIe lanes. Chipset compatibility: HM55,PM55,HM57,QM57 (Core i5-580M) and H61,H67,P67,Z68,Q65,Q67,B75,H77,Q75,Q77,Z75,Z77 (Core i3-2120).
| Feature | Core i5-580M | Core i3-2120 |
|---|---|---|
| Socket | PGA988 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1066 | DDR3-1333 |
| Max RAM Capacity | 8 GB | 32 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 16 |
Advanced Features
Virtualization support: VT-x, VT-d, EPT (Core i5-580M) vs Yes (Core i3-2120). Both include integrated graphics — HD Graphics (Core i5-580M) and Intel HD Graphics 2000 (Core i3-2120) — useful as a fallback for troubleshooting or display output without a dedicated GPU. Primary use case: Core i5-580M targets Legacy Laptop. Direct competitor: Core i5-580M rivals Phenom II X2 N660.
| Feature | Core i5-580M | Core i3-2120 |
|---|---|---|
| Integrated GPU | Yes | Yes |
| IGPU Model | HD Graphics | Intel HD Graphics 2000 |
| Unlocked | No | — |
| AVX-512 | No | No |
| Virtualization | VT-x, VT-d, EPT | Yes |
| Target Use | Legacy Laptop | — |
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