Ryzen 3 8300G vs Xeon E5-2666 V3
Ryzen 3 8300G
Xeon E5-2666 V3
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 3 8300G
Performance Per Dollar Xeon E5-2666 V3
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Ryzen 3 8300G | Xeon E5-2666 V3 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($176) | ✅ More affordable ($0) |
| Longevity | ✨ Modern (Phoenix2 (2024) / 4 nm) | 🛑 Legacy (Haswell-EP (2014−2015) / 22 nm) |
💎 Value Proposition
| Insight | Ryzen 3 8300G | Xeon E5-2666 V3 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($176) | ✅ More affordable ($0) |
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 3 8300G and Xeon E5-2666 V3
Ryzen 3 8300G
The Ryzen 3 8300G is manufactured by AMD. It was released in 8 January 2024 (1 year ago). It is based on the Phoenix2 (2024) architecture. It features 4 cores and 8 threads. Base frequency is 3.4 GHz, with boost up to 4.9 GHz. L3 cache: 8 MB (total). L2 cache: 1 MB (per core). Built on 4 nm process technology. Socket: AM5. Thermal design power (TDP): 65 Watt. Memory support: DDR5. Passmark benchmark score: 14,113 points. Launch price was $176.
Xeon E5-2666 V3
The Xeon E5-2666 V3 is manufactured by Intel. It was released in 2015-01-01. It is based on the Haswell-EP (2014−2015) architecture. It features 10 cores and 20 threads. Base frequency is 2.9 GHz, with boost up to 3.5 GHz. L3 cache: 25 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: LGA2011-3. Thermal design power (TDP): 135 Watt. Memory support: DDR3, DDR4 2133 MHz Quad-channel. Passmark benchmark score: 14,044 points. Launch price was $800.
Processing Power
The Ryzen 3 8300G packs 4 cores / 8 threads, while the Xeon E5-2666 V3 offers 10 cores / 20 threads — the Xeon E5-2666 V3 has 6 more cores. Boost clocks reach 4.9 GHz on the Ryzen 3 8300G versus 3.5 GHz on the Xeon E5-2666 V3 — a 33.3% clock advantage for the Ryzen 3 8300G (base: 3.4 GHz vs 2.9 GHz). The Ryzen 3 8300G uses the Phoenix2 (2024) architecture (4 nm), while the Xeon E5-2666 V3 uses Haswell-EP (2014−2015) (22 nm). In PassMark, the Ryzen 3 8300G scores 14,113 against the Xeon E5-2666 V3's 14,044 — a 0.5% lead for the Ryzen 3 8300G. L3 cache: 8 MB (total) on the Ryzen 3 8300G vs 25 MB (total) on the Xeon E5-2666 V3.
| Feature | Ryzen 3 8300G | Xeon E5-2666 V3 |
|---|---|---|
| Cores / Threads | 4 / 8 | 10 / 20+150% |
| Boost Clock | 4.9 GHz+40% | 3.5 GHz |
| Base Clock | 3.4 GHz+17% | 2.9 GHz |
| L3 Cache | 8 MB (total) | 25 MB (total)+213% |
| L2 Cache | 1 MB (per core)+300% | 256K (per core) |
| Process | 4 nm-82% | 22 nm |
| Architecture | Phoenix2 (2024) | Haswell-EP (2014−2015) |
| PassMark | 14,113 | 14,044 |
Memory & Platform
The Ryzen 3 8300G uses the AM5 socket (PCIe 4.0), while the Xeon E5-2666 V3 uses LGA2011-3 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Ryzen 3 8300G | Xeon E5-2666 V3 |
|---|---|---|
| Socket | AM5 | LGA2011-3 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
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The most powerful cpus ranked by PassMark CPU Mark benchmark scores.
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