CPU
GPU
Xeon E5-2620 v4
Xeon E3-1275 v6
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. The Xeon E5-2620 v4 is positioned at rank 304 and the Xeon E3-1275 v6 is on rank 471, so the Xeon E5-2620 v4 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5-2620 v4
Performance Per Dollar Xeon E3-1275 v6
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-2620 v4 | Xeon E3-1275 v6 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($410) | ✅ More affordable ($142) |
| Longevity | 🛑 Legacy (Broadwell (2015−2019) / 14 nm) | ✨ Modern (Kaby Lake (2016−2019) / 14 nm) |
💎 Value Proposition
| Insight | Xeon E5-2620 v4 | Xeon E3-1275 v6 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+187%) |
| Upfront Cost | ⚠️ Higher cost ($410) | ✅ More affordable ($142) |
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 E5-2620 v4 and Xeon E3-1275 v6
Xeon E5-2620 v4
The Xeon E5-2620 v4 is manufactured by Intel. It was released in 20 June 2016 (9 years ago). It is based on the Broadwell (2015−2019) architecture. It features 8 cores and 16 threads. Base frequency is 2.1 GHz, with boost up to 3 GHz. L3 cache: 20 MB. L2 cache: 2 MB. Built on 14 nm process technology. Socket: LGA2011. Thermal design power (TDP): 85 Watt. Memory support: DDR4-1600, DDR4-1866, DDR4-2133. Passmark benchmark score: 9,255 points. Launch price was $417.
Xeon E3-1275 v6
The Xeon E3-1275 v6 is manufactured by Intel. It was released in 28 March 2017 (8 years ago). It is based on the Kaby Lake (2016−2019) architecture. It features 4 cores and 8 threads. Base frequency is 3.8 GHz, with boost up to 4.2 GHz. L3 cache: 8 MB. L2 cache: 1 MB. Built on 14 nm process technology. Socket: LGA1151. Thermal design power (TDP): 73 Watt. Memory support: DDR4-2400, DDR3L-1866. Passmark benchmark score: 9,202 points. Launch price was $339.
Processing Power
The Xeon E5-2620 v4 packs 8 cores / 16 threads, while the Xeon E3-1275 v6 offers 4 cores / 8 threads — the Xeon E5-2620 v4 has 4 more cores. Boost clocks reach 3 GHz on the Xeon E5-2620 v4 versus 4.2 GHz on the Xeon E3-1275 v6 — a 33.3% clock advantage for the Xeon E3-1275 v6 (base: 2.1 GHz vs 3.8 GHz). The Xeon E5-2620 v4 uses the Broadwell (2015−2019) architecture (14 nm), while the Xeon E3-1275 v6 uses Kaby Lake (2016−2019) (14 nm). In PassMark, the Xeon E5-2620 v4 scores 9,255 against the Xeon E3-1275 v6's 9,202 — a 0.6% lead for the Xeon E5-2620 v4. L3 cache: 20 MB on the Xeon E5-2620 v4 vs 8 MB on the Xeon E3-1275 v6.
| Feature | Xeon E5-2620 v4 | Xeon E3-1275 v6 |
|---|---|---|
| Cores / Threads | 8 / 16+100% | 4 / 8 |
| Boost Clock | 3 GHz | 4.2 GHz+40% |
| Base Clock | 2.1 GHz | 3.8 GHz+81% |
| L3 Cache | 20 MB+150% | 8 MB |
| L2 Cache | 2 MB+100% | 1 MB |
| Process | 14 nm | 14 nm |
| Architecture | Broadwell (2015−2019) | Kaby Lake (2016−2019) |
| PassMark | 9,255 | 9,202 |
Memory & Platform
The Xeon E5-2620 v4 uses the LGA2011 socket (PCIe 3.0), while the Xeon E3-1275 v6 uses LGA1151 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5-2620 v4 | Xeon E3-1275 v6 |
|---|---|---|
| Socket | LGA2011 | LGA1151 |
| PCIe Generation | PCIe 3.0 | PCIe 3.0 |
| Max RAM Speed | DDR4-2133 | — |
| Max RAM Capacity | 1536 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 40 | — |
Value Analysis
The Xeon E5-2620 v4 launched at $417 MSRP, while the Xeon E3-1275 v6 debuted at $499. At current prices ($410 vs $142), the Xeon E3-1275 v6 is $268 cheaper. In terms of value (PassMark points per dollar), the Xeon E5-2620 v4 delivers 22.6 pts/$ vs 64.8 pts/$ for the Xeon E3-1275 v6 — making the Xeon E3-1275 v6 the 96.7% better value option.
| Feature | Xeon E5-2620 v4 | Xeon E3-1275 v6 |
|---|---|---|
| MSRP | $417-16% | $499 |
| Avg Price (30d) | $410 | $142-65% |
| Performance per Dollar | 22.6 | 64.8+187% |
| Release Date | 2016 | 2017 |
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