
Xeon W3503 vs Core 2 Extreme X6800

Xeon W3503

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 Xeon W3503 is positioned at rank 978 and the Core 2 Extreme X6800 is on rank 1042, so the Xeon W3503 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon W3503
Performance Per Dollar Core 2 Extreme X6800
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon W3503 | Core 2 Extreme X6800 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (Bloomfield (2008−2010) / 45 nm) | 🛑 Legacy (Conroe XE (2006) / 65 nm) |
💎 Value Proposition
| Insight | Xeon W3503 | 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 Xeon W3503 and Core 2 Extreme X6800

Xeon W3503
The Xeon W3503 is manufactured by Intel. It was released in 30 March 2009 (16 years ago). It is based on the Bloomfield (2008−2010) architecture. It features 2 cores and 2 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 4 MB (total). L2 cache: 256 kB (per core). Built on 45 nm process technology. Socket: LGA1366. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 1,125 points. Launch price was $65.

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 Xeon W3503 and Core 2 Extreme X6800 share an identical 2-core/2-thread configuration. Boost clocks reach 2.4 GHz on the Xeon W3503 versus 0.93 GHz on the Core 2 Extreme X6800 — a 88.3% clock advantage for the Xeon W3503 (base: 2.4 GHz vs 2.933 GHz). The Xeon W3503 uses the Bloomfield (2008−2010) architecture (45 nm), while the Core 2 Extreme X6800 uses Conroe XE (2006) (65 nm). In PassMark, the Xeon W3503 scores 1,125 against the Core 2 Extreme X6800's 1,118 — a 0.6% lead for the Xeon W3503. L3 cache: 4 MB (total) on the Xeon W3503 vs 0 kB on the Core 2 Extreme X6800.
| Feature | Xeon W3503 | Core 2 Extreme X6800 |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.4 GHz+158% | 0.93 GHz |
| Base Clock | 2.4 GHz | 2.933 GHz+22% |
| L3 Cache | 4 MB (total) | 0 kB |
| L2 Cache | 256 kB (per core) | 4 MB (total)+1500% |
| Process | 45 nm-31% | 65 nm |
| Architecture | Bloomfield (2008−2010) | Conroe XE (2006) |
| PassMark | 1,125 | 1,118 |
Memory & Platform
The Xeon W3503 uses the LGA1366 socket (PCIe 2.0), while the Core 2 Extreme X6800 uses LGA775 (PCIe 1.1) — making them incompatible on the same motherboard.
| Feature | Xeon W3503 | Core 2 Extreme X6800 |
|---|---|---|
| Socket | LGA1366 | LGA775 |
| PCIe Generation | PCIe 2.0+82% | PCIe 1.1 |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.















