CPU
GPU
Core i5-580M
Core 2 Duo T5800
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 2 Duo T5800 is on rank 292, so the Core 2 Duo T5800 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 2 Duo T5800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-580M | Core 2 Duo T5800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Arrandale (2010−2011) / 32 nm) | 🛑 Legacy (Merom (2006−2008) / 65 nm) |
💎 Value Proposition
| Insight | Core i5-580M | Core 2 Duo T5800 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 2 Duo T5800
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 2 Duo T5800
The Core 2 Duo T5800 is manufactured by Intel. It was released in 2008-01-01. It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2 GHz, with boost up to 2 GHz. L3 cache: 2 MB L2 Cache. L2 cache: 2 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 35 Watt. Passmark benchmark score: 2,000 points. Launch price was $249.
Processing Power
The Core i5-580M packs 2 cores / 4 threads, matching the Core 2 Duo T5800's 2 cores. Boost clocks reach 3.33 GHz on the Core i5-580M versus 2 GHz on the Core 2 Duo T5800 — a 49.9% clock advantage for the Core i5-580M (base: 2.66 GHz vs 2 GHz). The Core i5-580M uses the Arrandale (2010−2011) architecture (32 nm), while the Core 2 Duo T5800 uses Merom (2006−2008) (65 nm). In PassMark, the Core i5-580M scores 1,983 against the Core 2 Duo T5800's 2,000 — a 0.9% lead for the Core 2 Duo T5800. L3 cache: 3 MB (total) on the Core i5-580M vs 2 MB L2 Cache on the Core 2 Duo T5800.
| Feature | Core i5-580M | Core 2 Duo T5800 |
|---|---|---|
| Cores / Threads | 2 / 4 | 2 / 2 |
| Boost Clock | 3.33 GHz+67% | 2 GHz |
| Base Clock | 2.66 GHz+33% | 2 GHz |
| L3 Cache | 3 MB (total)+50% | 2 MB L2 Cache |
| L2 Cache | 256K (per core) | 2 MB+700% |
| Process | 32 nm-51% | 65 nm |
| Architecture | Arrandale (2010−2011) | Merom (2006−2008) |
| PassMark | 1,983 | 2,000 |
| Geekbench 6 Single | 445 | — |
Memory & Platform
The Core i5-580M uses the PGA988 socket (PCIe 2.0), while the Core 2 Duo T5800 uses PGA478 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Core i5-580M | Core 2 Duo T5800 |
|---|---|---|
| Socket | PGA988 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | DDR3-1066 | — |
| Max RAM Capacity | 8 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x, VT-d, EPT (Core i5-580M) / not specified (Core 2 Duo T5800). The Core i5-580M includes integrated graphics (HD Graphics), while the Core 2 Duo T5800 requires 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 2 Duo T5800 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | HD Graphics | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | VT-x, VT-d, EPT | — |
| Target Use | Legacy Laptop | — |
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