CPU
GPU
Core 2 Extreme X7900
Popular choices:
Ryzen 9 7950X3D
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 X7900 is positioned at rank #1162 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 X7900
Performance Per Dollar Ryzen 9 7950X3D
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core 2 Extreme X7900 | Ryzen 9 7950X3D |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($486) |
| Longevity | 🛑 Legacy (Merom (2006−2008) / 65 nm) | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm, 6 nm) |
💎 Value Proposition
| Insight | Core 2 Extreme X7900 | Ryzen 9 7950X3D |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($486) |
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 Ryzen 9 7950X3D
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.
Ryzen 9 7950X3D
The Ryzen 9 7950X3D is manufactured by AMD. It was released in 4 January 2023 (2 years ago). It is based on the Raphael (Zen4) (2022−2023) architecture. It features 16 cores and 32 threads. Base frequency is 4.2 GHz, with boost up to 5.7 GHz. L3 cache: 128 MB (total). L2 cache: 1 MB (per core). Built on 5 nm, 6 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 62,323 points. Launch price was $699.
Processing Power
The Core 2 Extreme X7900 packs 2 cores / 2 threads, while the Ryzen 9 7950X3D offers 16 cores / 32 threads — the Ryzen 9 7950X3D has 14 more cores. Boost clocks reach 2.8 GHz on the Core 2 Extreme X7900 versus 5.7 GHz on the Ryzen 9 7950X3D — a 68.2% clock advantage for the Ryzen 9 7950X3D (base: 2.8 GHz vs 4.2 GHz). The Core 2 Extreme X7900 uses the Merom (2006−2008) architecture (65 nm), while the Ryzen 9 7950X3D uses Raphael (Zen4) (2022−2023) (5 nm, 6 nm). In PassMark, the Core 2 Extreme X7900 scores 1,115 against the Ryzen 9 7950X3D's 62,323 — a 193% lead for the Ryzen 9 7950X3D. L3 cache: 0 kB on the Core 2 Extreme X7900 vs 128 MB (total) on the Ryzen 9 7950X3D.
| Feature | Core 2 Extreme X7900 | Ryzen 9 7950X3D |
|---|---|---|
| Cores / Threads | 2 / 2 | 16 / 32+700% |
| Boost Clock | 2.8 GHz | 5.7 GHz+104% |
| Base Clock | 2.8 GHz | 4.2 GHz+50% |
| L3 Cache | 0 kB | 128 MB (total) |
| L2 Cache | 4 MB+300% | 1 MB (per core) |
| Process | 65 nm | 5 nm, 6 nm-92% |
| Architecture | Merom (2006−2008) | Raphael (Zen4) (2022−2023) |
| PassMark | 1,115 | 62,323+5490% |
| Cinebench R23 Multi | — | 38,581 |
| Geekbench 6 Single | — | 2,926 |
| Geekbench 6 Multi | — | 19,643 |
Memory & Platform
The Core 2 Extreme X7900 uses the PGA478 socket (PCIe 1.1), while the Ryzen 9 7950X3D uses AM5 (PCIe 5.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Core 2 Extreme X7900 versus DDR5-5200 on the Ryzen 9 7950X3D — the Ryzen 9 7950X3D supports 85.7% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Ryzen 9 7950X3D 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: 0 (Core 2 Extreme X7900) vs 28 (Ryzen 9 7950X3D) — the Ryzen 9 7950X3D offers 28 more lanes for additional GPUs or NVMe drives.
| Feature | Core 2 Extreme X7900 | Ryzen 9 7950X3D |
|---|---|---|
| Socket | PGA478 | AM5 |
| PCIe Generation | PCIe 1.1 | PCIe 5.0+355% |
| Max RAM Speed | DDR2-667 | DDR5-5200+150% |
| Max RAM Capacity | 4 GB | 128 GB+3100% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 28 |
Advanced Features
Both processors feature an unlocked multiplier for overclocking. Only the Ryzen 9 7950X3D supports AVX-512 instructions — important for machine learning and scientific applications. Virtualization support: VT-x (Core 2 Extreme X7900) vs true (Ryzen 9 7950X3D). The Ryzen 9 7950X3D includes integrated graphics (Radeon Graphics), while the Core 2 Extreme X7900 requires a dedicated GPU. Primary use case: Core 2 Extreme X7900 targets Mobile. Direct competitor: Ryzen 9 7950X3D rivals Core i9-13900K.
| Feature | Core 2 Extreme X7900 | Ryzen 9 7950X3D |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | Radeon Graphics |
| Unlocked | Yes | Yes |
| AVX-512 | No | Yes |
| Virtualization | VT-x | true |
| Target Use | Mobile | — |
Top Performing CPUs
The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
You May Also Compare
Similar CPU comparisons based on Core 2 Extreme X7900 and Ryzen 9 7950X3D
