Xeon E3-1275 vs Ryzen 7 5800X
Xeon E3-1275
Popular choices:
Ryzen 7 5800X
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 Xeon E3-1275 is positioned at rank #522 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 Xeon E3-1275
Performance Per Dollar Ryzen 7 5800X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E3-1275 | Ryzen 7 5800X |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
| Longevity | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) | ✨ Modern (Vermeer (Zen 3) (2020−2022) / 7 nm, 12 nm) |
💎 Value Proposition
| Insight | Xeon E3-1275 | Ryzen 7 5800X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($180) |
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 Xeon E3-1275 and Ryzen 7 5800X
Xeon E3-1275
The Xeon E3-1275 is manufactured by Intel. It was released in 3 April 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 4 cores and 8 threads. Base frequency is 3.4 GHz, with boost up to 3.8 GHz. L3 cache: 8 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,496 points. Launch price was $450.
Ryzen 7 5800X
The Ryzen 7 5800X is manufactured by AMD. It was released in 5 November 2020 (5 years ago). It is based on the Vermeer (Zen 3) (2020−2022) architecture. It features 8 cores and 16 threads. Base frequency is 3.8 GHz, with boost up to 4.7 GHz. L3 cache: 32 MB. L2 cache: 512K (per core). Built on 7 nm, 12 nm process technology. Socket: AM4. Thermal design power (TDP): 105 Watt. Memory support: DDR4. Passmark benchmark score: 27,712 points. Launch price was $449.
Processing Power
The Xeon E3-1275 packs 4 cores / 8 threads, while the Ryzen 7 5800X offers 8 cores / 16 threads — the Ryzen 7 5800X has 4 more cores. Boost clocks reach 3.8 GHz on the Xeon E3-1275 versus 4.7 GHz on the Ryzen 7 5800X — a 21.2% clock advantage for the Ryzen 7 5800X (base: 3.4 GHz vs 3.8 GHz). The Xeon E3-1275 uses the Sandy Bridge (2011−2013) architecture (32 nm), while the Ryzen 7 5800X uses Vermeer (Zen 3) (2020−2022) (7 nm, 12 nm). In PassMark, the Xeon E3-1275 scores 5,496 against the Ryzen 7 5800X's 27,712 — a 133.8% lead for the Ryzen 7 5800X. L3 cache: 8 MB (total) on the Xeon E3-1275 vs 32 MB on the Ryzen 7 5800X.
| Feature | Xeon E3-1275 | Ryzen 7 5800X |
|---|---|---|
| Cores / Threads | 4 / 8 | 8 / 16+100% |
| Boost Clock | 3.8 GHz | 4.7 GHz+24% |
| Base Clock | 3.4 GHz | 3.8 GHz+12% |
| L3 Cache | 8 MB (total) | 32 MB+300% |
| L2 Cache | 256 kB (per core) | 512K (per core)+100% |
| Process | 32 nm | 7 nm, 12 nm-78% |
| Architecture | Sandy Bridge (2011−2013) | Vermeer (Zen 3) (2020−2022) |
| PassMark | 5,496 | 27,712+404% |
Memory & Platform
The Xeon E3-1275 uses the LGA1155 socket (PCIe 2.0), while the Ryzen 7 5800X uses AM4 (PCIe 4.0) — making them incompatible on the same motherboard.
| Feature | Xeon E3-1275 | Ryzen 7 5800X |
|---|---|---|
| Socket | LGA1155 | AM4 |
| PCIe Generation | PCIe 2.0 | PCIe 4.0+100% |
| Max RAM Speed | — | DDR4-3200 |
| Max RAM Capacity | — | 128 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ✅ |
| PCIe Lanes | — | 24 |
Advanced Features
Virtualization: not specified (Xeon E3-1275) / AMD-V (Ryzen 7 5800X). Primary use case: Ryzen 7 5800X targets Desktop.
| Feature | Xeon E3-1275 | Ryzen 7 5800X |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | AMD-V |
| Target Use | — | Desktop |
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