Ryzen 7 7800X3D vs Xeon E5-2643
Ryzen 7 7800X3D
Xeon E5-2643
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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.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Ryzen 7 7800X3D
Performance Per Dollar Xeon E5-2643
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($384) | ✅ More affordable ($50) |
| Longevity | ✨ Modern (Raphael (Zen4) (2022−2023) / 5 nm) | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) |
💎 Value Proposition
| Insight | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+17%) |
| Upfront Cost | ⚠️ Higher cost ($384) | ✅ More affordable ($50) |
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 Ryzen 7 7800X3D and Xeon E5-2643
Ryzen 7 7800X3D
The Ryzen 7 7800X3D 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 8 cores and 16 threads. Base frequency is 4.4 GHz, with boost up to 5 GHz. L3 cache: 96 MB (total). L2 cache: 1 MB (per core). Built on 5 nm process technology. Socket: AM5. Thermal design power (TDP): 120 Watt. Memory support: DDR5-5200. Passmark benchmark score: 34,293 points. Launch price was $449.
Xeon E5-2643
The Xeon E5-2643 is manufactured by Intel. It was released in 6 March 2012 (13 years ago). It is based on the Sandy Bridge-EP (2012) architecture. It features 4 cores and 8 threads. Base frequency is 3.3 GHz, with boost up to 3.5 GHz. L3 cache: 10240 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 130 Watt. Memory support: DDR3. Passmark benchmark score: 5,228 points. Launch price was $218.
Processing Power
The Ryzen 7 7800X3D packs 8 cores / 16 threads, while the Xeon E5-2643 offers 4 cores / 8 threads — the Ryzen 7 7800X3D has 4 more cores. Boost clocks reach 5 GHz on the Ryzen 7 7800X3D versus 3.5 GHz on the Xeon E5-2643 — a 35.3% clock advantage for the Ryzen 7 7800X3D (base: 4.4 GHz vs 3.3 GHz). The Ryzen 7 7800X3D uses the Raphael (Zen4) (2022−2023) architecture (5 nm), while the Xeon E5-2643 uses Sandy Bridge-EP (2012) (32 nm). In PassMark, the Ryzen 7 7800X3D scores 34,293 against the Xeon E5-2643's 5,228 — a 147.1% lead for the Ryzen 7 7800X3D. L3 cache: 96 MB (total) on the Ryzen 7 7800X3D vs 10240 kB (total) on the Xeon E5-2643.
| Feature | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| Cores / Threads | 8 / 16+100% | 4 / 8 |
| Boost Clock | 5 GHz+43% | 3.5 GHz |
| Base Clock | 4.4 GHz+33% | 3.3 GHz |
| L3 Cache | 96 MB (total)+860% | 10240 kB (total) |
| L2 Cache | 1 MB (per core)+300% | 256 kB (per core) |
| Process | 5 nm-84% | 32 nm |
| Architecture | Raphael (Zen4) (2022−2023) | Sandy Bridge-EP (2012) |
| PassMark | 34,293+556% | 5,228 |
| Cinebench R23 Multi | 18,500 | — |
| Geekbench 6 Single | 2,700 | — |
| Geekbench 6 Multi | 15,000 | — |
Memory & Platform
The Ryzen 7 7800X3D uses the AM5 socket (PCIe 5.0), while the Xeon E5-2643 uses LGA2011 (PCIe 5.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| Socket | AM5 | LGA2011 |
| PCIe Generation | PCIe 5.0 | PCIe 5.0 |
| Max RAM Speed | DDR5-5200 | — |
| Max RAM Capacity | 128 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 28 | — |
Advanced Features
Virtualization: AMD-V (Ryzen 7 7800X3D) / not specified (Xeon E5-2643). The Ryzen 7 7800X3D includes integrated graphics (AMD Radeon Graphics (2-core)), while the Xeon E5-2643 requires a dedicated GPU. Primary use case: Ryzen 7 7800X3D targets Gaming. Direct competitor: Ryzen 7 7800X3D rivals Intel Core i7-14700K.
| Feature | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | AMD Radeon Graphics (2-core) | — |
| Unlocked | Yes | — |
| AVX-512 | Yes | — |
| Virtualization | AMD-V | — |
| Target Use | Gaming | — |
Value Analysis
The Ryzen 7 7800X3D launched at $449 MSRP, while the Xeon E5-2643 debuted at $1552. At current prices ($384 vs $50), the Xeon E5-2643 is $334 cheaper. In terms of value (PassMark points per dollar), the Ryzen 7 7800X3D delivers 89.3 pts/$ vs 104.6 pts/$ for the Xeon E5-2643 — making the Xeon E5-2643 the 15.7% better value option.
| Feature | Ryzen 7 7800X3D | Xeon E5-2643 |
|---|---|---|
| MSRP | $449-71% | $1552 |
| Avg Price (30d) | $384 | $50-87% |
| Performance per Dollar | 89.3 | 104.6+17% |
| Release Date | 2023 | 2012 |
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