CPU
GPU
Core 2 Extreme X7800
Pentium G640T
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 X7800 is positioned at rank 1145 and the Pentium G640T is on rank 848, so the Pentium G640T 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 X7800
Performance Per Dollar Pentium G640T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Extreme X7800 | Pentium G640T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($69) |
| Longevity | 🛑 Legacy (Merom XE (2007) / 65 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Core 2 Extreme X7800 | Pentium G640T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($69) |
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 X7800 and Pentium G640T
Core 2 Extreme X7800
The Core 2 Extreme X7800 is manufactured by Intel. It was released in 17 July 2007 (18 years ago). It is based on the Merom XE (2007) architecture. It features 2 cores and 2 threads. Base frequency is 2.6 GHz, with boost up to 2.6 GHz. L3 cache: 4 MB L2 Cache. L2 cache: 4 MB. Built on 65 nm process technology. Socket: PGA478. Thermal design power (TDP): 44 Watt. Passmark benchmark score: 1,138 points. Launch price was $851.
Pentium G640T
The Pentium G640T is manufactured by Intel. It was released in 2007-01-01. It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.4 GHz, with boost up to 2.4 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,139 points. Launch price was $69.
Processing Power
Both the Core 2 Extreme X7800 and Pentium G640T share an identical 2-core/2-thread configuration. Boost clocks reach 2.6 GHz on the Core 2 Extreme X7800 versus 2.4 GHz on the Pentium G640T — a 8% clock advantage for the Core 2 Extreme X7800 (base: 2.6 GHz vs 2.4 GHz). The Core 2 Extreme X7800 uses the Merom XE (2007) architecture (65 nm), while the Pentium G640T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Core 2 Extreme X7800 scores 1,138 against the Pentium G640T's 1,139 — a 0.1% lead for the Pentium G640T. L3 cache: 4 MB L2 Cache on the Core 2 Extreme X7800 vs 3 MB (total) on the Pentium G640T.
| Feature | Core 2 Extreme X7800 | Pentium G640T |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.6 GHz+8% | 2.4 GHz |
| Base Clock | 2.6 GHz+8% | 2.4 GHz |
| L3 Cache | 4 MB L2 Cache+33% | 3 MB (total) |
| L2 Cache | 4 MB+1500% | 256 kB (per core) |
| Process | 65 nm | 32 nm-51% |
| Architecture | Merom XE (2007) | Sandy Bridge (2011−2013) |
| PassMark | 1,138 | 1,139 |
Memory & Platform
The Core 2 Extreme X7800 uses the PGA478 socket (PCIe 1.1), while the Pentium G640T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Core 2 Extreme X7800 | Pentium G640T |
|---|---|---|
| Socket | PGA478 | LGA1155 |
| PCIe Generation | PCIe 1.1 | PCIe 2.0+82% |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 4 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 16 | — |
Advanced Features
Virtualization: VT-x (Core 2 Extreme X7800) / not specified (Pentium G640T).
| Feature | Core 2 Extreme X7800 | Pentium G640T |
|---|---|---|
| Integrated GPU | No | — |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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