
Core i7-920XM

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 i7-920XM is positioned at rank 876 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 i7-920XM
Performance Per Dollar Core 2 Duo T5800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i7-920XM | Core 2 Duo T5800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Clarksfield (2009−2010) / 45 nm) | 🛑 Legacy (Merom (2006−2008) / 65 nm) |
💎 Value Proposition
| Insight | Core i7-920XM | 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 i7-920XM and Core 2 Duo T5800

Core i7-920XM
The Core i7-920XM is manufactured by Intel. It was released in 23 September 2009 (16 years ago). It is based on the Clarksfield (2009−2010) architecture. It features 4 cores and 8 threads. Base frequency is 2 GHz, with boost up to 3.2 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: PGA988. Thermal design power (TDP): 55 Watt. Memory support: DDR3-1066, DDR3-1333. Passmark benchmark score: 2,014 points. Launch price was $1,054.

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 i7-920XM packs 4 cores / 8 threads, while the Core 2 Duo T5800 offers 2 cores / 2 threads — the Core i7-920XM has 2 more cores. Boost clocks reach 3.2 GHz on the Core i7-920XM versus 2 GHz on the Core 2 Duo T5800 — a 46.2% clock advantage for the Core i7-920XM (base: 2 GHz vs 2 GHz). The Core i7-920XM uses the Clarksfield (2009−2010) architecture (45 nm), while the Core 2 Duo T5800 uses Merom (2006−2008) (65 nm). In PassMark, the Core i7-920XM scores 2,014 against the Core 2 Duo T5800's 2,000 — a 0.7% lead for the Core i7-920XM. L3 cache: 8 MB (total) on the Core i7-920XM vs 2 MB L2 Cache on the Core 2 Duo T5800.
| Feature | Core i7-920XM | Core 2 Duo T5800 |
|---|---|---|
| Cores / Threads | 4 / 8+100% | 2 / 2 |
| Boost Clock | 3.2 GHz+60% | 2 GHz |
| Base Clock | 2 GHz | 2 GHz |
| L3 Cache | 8 MB (total)+300% | 2 MB L2 Cache |
| L2 Cache | 256 kB (per core) | 2 MB+700% |
| Process | 45 nm-31% | 65 nm |
| Architecture | Clarksfield (2009−2010) | Merom (2006−2008) |
| PassMark | 2,014 | 2,000 |
Memory & Platform
The Core i7-920XM 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 i7-920XM | Core 2 Duo T5800 |
|---|---|---|
| Socket | PGA988 | PGA478 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
| Max RAM Speed | 1333 | — |
| Max RAM Capacity | 8 | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: true (Core i7-920XM) / not specified (Core 2 Duo T5800). Direct competitor: Core i7-920XM rivals Core i7-2720QM.
| Feature | Core i7-920XM | Core 2 Duo T5800 |
|---|---|---|
| Integrated GPU | No | — |
| IGPU Model | None | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | true | — |
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