
Core 2 Extreme X9000 vs Core 2 Extreme X6800

Core 2 Extreme X9000

Core 2 Extreme X6800
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 2 Extreme X9000 is positioned at rank 915 and the Core 2 Extreme X6800 is on rank 1042, so the Core 2 Extreme X9000 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Extreme X9000
Performance Per Dollar Core 2 Extreme X6800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Extreme X9000 | Core 2 Extreme X6800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Penryn (2008−2011) / 45 nm) | 🛑 Legacy (Conroe XE (2006) / 65 nm) |
💎 Value Proposition
| Insight | Core 2 Extreme X9000 | Core 2 Extreme X6800 |
|---|---|---|
| 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 2 Extreme X9000 and Core 2 Extreme X6800

Core 2 Extreme X9000
The Core 2 Extreme X9000 is manufactured by Intel. It was released in 10 January 2008 (17 years ago). It is based on the Penryn (2008−2011) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 6 MB L2 Cache. L2 cache: 6 MB. Built on 45 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,108 points. Launch price was $851.

Core 2 Extreme X6800
The Core 2 Extreme X6800 is manufactured by Intel. It was released in 27 July 2006 (19 years ago). It is based on the Conroe XE (2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.933 GHz, with boost up to 0.93 GHz. L3 cache: 0 kB. L2 cache: 4 MB (total). Built on 65 nm process technology. Socket: LGA775. Thermal design power (TDP): 75 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,118 points. Launch price was $999.
Processing Power
Both the Core 2 Extreme X9000 and Core 2 Extreme X6800 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Core 2 Extreme X9000 versus 0.93 GHz on the Core 2 Extreme X6800 — a 100.3% clock advantage for the Core 2 Extreme X9000 (base: 2.8 GHz vs 2.933 GHz). The Core 2 Extreme X9000 uses the Penryn (2008−2011) architecture (45 nm), while the Core 2 Extreme X6800 uses Conroe XE (2006) (65 nm). In PassMark, the Core 2 Extreme X9000 scores 1,108 against the Core 2 Extreme X6800's 1,118 — a 0.9% lead for the Core 2 Extreme X6800. L3 cache: 6 MB L2 Cache on the Core 2 Extreme X9000 vs 0 kB on the Core 2 Extreme X6800.
| Feature | Core 2 Extreme X9000 | Core 2 Extreme X6800 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.8 GHz+201% | 0.93 GHz |
| Base Clock | 2.8 GHz | 2.933 GHz+5% |
| L3 Cache | 6 MB L2 Cache | 0 kB |
| L2 Cache | 6 MB+50% | 4 MB (total) |
| Process | 45 nm-31% | 65 nm |
| Architecture | Penryn (2008−2011) | Conroe XE (2006) |
| PassMark | 1,108 | 1,118 |
Memory & Platform
The Core 2 Extreme X9000 uses the PGA478 socket (PCIe 1.1), while the Core 2 Extreme X6800 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Core 2 Extreme X9000 | Core 2 Extreme X6800 |
|---|---|---|
| Socket | PGA478 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
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