Core 2 Extreme X7900 vs Core 2 Extreme X6800
Core 2 Extreme X7900
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 X7900 is positioned at rank 1162 and the Core 2 Extreme X6800 is on rank 1042, so the Core 2 Extreme X6800 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 X7900
Performance Per Dollar Core 2 Extreme X6800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Extreme X7900 | 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 (Merom (2006−2008) / 65 nm) | 🛑 Legacy (Conroe XE (2006) / 65 nm) |
💎 Value Proposition
| Insight | Core 2 Extreme X7900 | 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 X7900 and Core 2 Extreme X6800
Core 2 Extreme X7900
The Core 2 Extreme X7900 is manufactured by Intel. It was released in 1 September 2007 (18 years ago). It is based on the Merom (2006−2008) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Memory support: DDR1. Passmark benchmark score: 1,115 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 X7900 and Core 2 Extreme X6800 share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Core 2 Extreme X7900 versus 0.93 GHz on the Core 2 Extreme X6800 — a 100.3% clock advantage for the Core 2 Extreme X7900 (base: 2.8 GHz vs 2.933 GHz). The Core 2 Extreme X7900 uses the Merom (2006−2008) architecture (65 nm), while the Core 2 Extreme X6800 uses Conroe XE (2006) (65 nm). In PassMark, the Core 2 Extreme X7900 scores 1,115 against the Core 2 Extreme X6800's 1,118 — a 0.3% lead for the Core 2 Extreme X6800. Both processors carry 0 kB of L3 cache.
| Feature | Core 2 Extreme X7900 | 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 | 0 kB | 0 kB |
| L2 Cache | 4 MB | 4 MB (total) |
| Process | 65 nm | 65 nm |
| Architecture | Merom (2006−2008) | Conroe XE (2006) |
| PassMark | 1,115 | 1,118 |
Memory & Platform
The Core 2 Extreme X7900 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 X7900 | Core 2 Extreme X6800 |
|---|---|---|
| Socket | PGA478 | LGA775 |
| PCIe Generation | PCIe 1.1 | PCIe 1.1 |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 0 | — |
Advanced Features
Virtualization: VT-x (Core 2 Extreme X7900) / not specified (Core 2 Extreme X6800). Primary use case: Core 2 Extreme X7900 targets Mobile.
| Feature | Core 2 Extreme X7900 | Core 2 Extreme X6800 |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
| Target Use | Mobile | — |
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