Xeon E5-2620 vs Xeon E3-1245
Xeon E5-2620
Xeon E3-1245
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 is positioned at rank 722 and the Xeon E3-1245 is on rank 527, so the Xeon E3-1245 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
Performance Per Dollar Xeon E3-1245
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5-2620 | Xeon E3-1245 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($89) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Sandy Bridge-EP (2012) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E5-2620 | Xeon E3-1245 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($89) | ✅ 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 Xeon E5-2620 and Xeon E3-1245
Xeon E5-2620
The Xeon E5-2620 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 6 cores and 12 threads. Base frequency is 2 GHz, with boost up to 2.5 GHz. L3 cache: 15360 kB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA2011. Thermal design power (TDP): 95 Watt. Memory support: DDR3. Passmark benchmark score: 5,328 points. Launch price was $36.
Xeon E3-1245
The Xeon E3-1245 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 3.3 GHz, with boost up to 3.7 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: 5,346 points. Launch price was $350.
Processing Power
The Xeon E5-2620 packs 6 cores / 12 threads, while the Xeon E3-1245 offers 4 cores / 8 threads — the Xeon E5-2620 has 2 more cores. Boost clocks reach 2.5 GHz on the Xeon E5-2620 versus 3.7 GHz on the Xeon E3-1245 — a 38.7% clock advantage for the Xeon E3-1245 (base: 2 GHz vs 3.3 GHz). The Xeon E5-2620 uses the Sandy Bridge-EP (2012) architecture (32 nm), while the Xeon E3-1245 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Xeon E5-2620 scores 5,328 against the Xeon E3-1245's 5,346 — a 0.3% lead for the Xeon E3-1245. L3 cache: 15360 kB (total) on the Xeon E5-2620 vs 8 MB (total) on the Xeon E3-1245.
| Feature | Xeon E5-2620 | Xeon E3-1245 |
|---|---|---|
| Cores / Threads | 6 / 12+50% | 4 / 8 |
| Boost Clock | 2.5 GHz | 3.7 GHz+48% |
| Base Clock | 2 GHz | 3.3 GHz+65% |
| L3 Cache | 15360 kB (total)+88% | 8 MB (total) |
| L2 Cache | 256 kB (per core) | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Sandy Bridge-EP (2012) | Sandy Bridge (2011−2013) |
| PassMark | 5,328 | 5,346 |
Memory & Platform
The Xeon E5-2620 uses the LGA2011 socket (PCIe 2.0), while the Xeon E3-1245 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5-2620 | Xeon E3-1245 |
|---|---|---|
| Socket | LGA2011 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 384 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 40 | — |
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