Core 2 Extreme X7800 vs Core i5-12400F
Core 2 Extreme X7800
Core i5-12400F
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. The Core 2 Extreme X7800 is positioned at rank #1145 in our cost-efficiency ranking, representing a Lower cost-benefit for your build. Components placed above yours deliver better value for money.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core 2 Extreme X7800
Performance Per Dollar Core i5-12400F
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Extreme X7800 | Core i5-12400F |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($110) |
| Longevity | 🛑 Legacy (Merom XE (2007) / 65 nm) | ✨ Modern (Alder Lake-S (2022) / Intel 7 nm) |
💎 Value Proposition
| Insight | Core 2 Extreme X7800 | Core i5-12400F |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($110) |
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 Core i5-12400F
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.
Core i5-12400F
The Core i5-12400F is manufactured by Intel. It was released in 4 January 2022 (3 years ago). It is based on the Alder Lake-S (2022) architecture. It features 6 cores and 12 threads. Base frequency is 2.5 GHz, with boost up to 4.4 GHz. L3 cache: 18 MB (total). L2 cache: 1.25 MB (per core). Built on Intel 7 nm process technology. Socket: LGA1700. Thermal design power (TDP): 65 Watt. Memory support: DDR5-4800, DDR4-3200. Passmark benchmark score: 19,532 points. Launch price was $180.
Processing Power
The Core 2 Extreme X7800 packs 2 cores / 2 threads, while the Core i5-12400F offers 6 cores / 12 threads — the Core i5-12400F has 4 more cores. Boost clocks reach 2.6 GHz on the Core 2 Extreme X7800 versus 4.4 GHz on the Core i5-12400F — a 51.4% clock advantage for the Core i5-12400F (base: 2.6 GHz vs 2.5 GHz). The Core 2 Extreme X7800 uses the Merom XE (2007) architecture (65 nm), while the Core i5-12400F uses Alder Lake-S (2022) (Intel 7 nm). In PassMark, the Core 2 Extreme X7800 scores 1,138 against the Core i5-12400F's 19,532 — a 178% lead for the Core i5-12400F. L3 cache: 4 MB L2 Cache on the Core 2 Extreme X7800 vs 18 MB (total) on the Core i5-12400F.
| Feature | Core 2 Extreme X7800 | Core i5-12400F |
|---|---|---|
| Cores / Threads | 2 / 2 | 6 / 12+200% |
| Boost Clock | 2.6 GHz | 4.4 GHz+69% |
| Base Clock | 2.6 GHz+4% | 2.5 GHz |
| L3 Cache | 4 MB L2 Cache | 18 MB (total)+350% |
| L2 Cache | 4 MB+220% | 1.25 MB (per core) |
| Process | 65 nm | Intel 7 nm-89% |
| Architecture | Merom XE (2007) | Alder Lake-S (2022) |
| PassMark | 1,138 | 19,532+1616% |
| Cinebench R23 Multi | — | 12,380 |
| Geekbench 6 Single | — | 1,700 |
| Geekbench 6 Multi | — | 657 |
Memory & Platform
The Core 2 Extreme X7800 uses the PGA478 socket (PCIe 1.1), while the Core i5-12400F uses LGA1700 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Extreme X7800 versus DDR5-4800, DDR4-3200 on the Core i5-12400F — the Core i5-12400F supports 85.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Core i5-12400F supports up to 128 GB of RAM compared to 4 GB — 187.9% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 16 (Core 2 Extreme X7800) vs 20 (Core i5-12400F) — the Core i5-12400F offers 4 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Socket P (Core 2 Extreme X7800) and H610,B660,H670,Z690,B760,H770,Z790 (Core i5-12400F).
| Feature | Core 2 Extreme X7800 | Core i5-12400F |
|---|---|---|
| Socket | PGA478 | LGA1700 |
| PCIe Generation | PCIe 1.1 | PCIe 3.0+173% |
| Max RAM Speed | DDR2-667 | DDR5-4800, DDR4-3200+150% |
| Max RAM Capacity | 4 GB | 128 GB+3100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ❌ |
| PCIe Lanes | 16 | 20+25% |
Advanced Features
Virtualization support: VT-x (Core 2 Extreme X7800) vs VT-x, VT-d, EPT (Core i5-12400F). Primary use case: Core i5-12400F targets Gaming Performance/Value. Direct competitor: Core i5-12400F rivals Ryzen 5 5600.
| Feature | Core 2 Extreme X7800 | Core i5-12400F |
|---|---|---|
| Integrated GPU | No | No |
| Unlocked | Yes | — |
| AVX-512 | No | — |
| Virtualization | VT-x | VT-x, VT-d, EPT |
| Target Use | — | Gaming Performance/Value |
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