Xeon E5420 vs Pentium G620T
Xeon E5420
Pentium G620T
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 E5420 is positioned at rank 1033 and the Pentium G620T is on rank 571, so the Pentium G620T offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Xeon E5420
Performance Per Dollar Pentium G620T
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Xeon E5420 | Pentium G620T |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ⚠️ Higher cost ($6,500) | ✅ More affordable ($90) |
| Longevity | 🛑 Legacy (Harpertown (2007−2008) / 45 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | Xeon E5420 | Pentium G620T |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ✅ Better overall value (+7161%) |
| Upfront Cost | ⚠️ Higher cost ($6,500) | ✅ More affordable ($90) |
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 E5420 and Pentium G620T
Xeon E5420
The Xeon E5420 is manufactured by Intel. It was released in 11 November 2007 (18 years ago). It is based on the Harpertown (2007−2008) architecture. It features 4 cores and 4 threads. Base frequency is 2.5 GHz, with boost up to 2.5 GHz. L3 cache: 12 MB L2 Cache. L2 cache: 6 MB (total). Built on 45 nm process technology. Socket: LGA771. Thermal design power (TDP): 80 Watt. Memory support: DDR2, DDR3 Depends on motherboard. Passmark benchmark score: 2,044 points. Launch price was $316.
Pentium G620T
The Pentium G620T is manufactured by Intel. It was released in 22 May 2011 (14 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 2,055 points. Launch price was $80.
Processing Power
The Xeon E5420 packs 4 cores / 4 threads, while the Pentium G620T offers 2 cores / 2 threads — the Xeon E5420 has 2 more cores. Boost clocks reach 2.5 GHz on the Xeon E5420 versus 2.2 GHz on the Pentium G620T — a 12.8% clock advantage for the Xeon E5420 (base: 2.5 GHz vs 2.2 GHz). The Xeon E5420 uses the Harpertown (2007−2008) architecture (45 nm), while the Pentium G620T uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the Xeon E5420 scores 2,044 against the Pentium G620T's 2,055 — a 0.5% lead for the Pentium G620T. L3 cache: 12 MB L2 Cache on the Xeon E5420 vs 3 MB (total) on the Pentium G620T.
| Feature | Xeon E5420 | Pentium G620T |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 2.5 GHz+14% | 2.2 GHz |
| Base Clock | 2.5 GHz+14% | 2.2 GHz |
| L3 Cache | 12 MB L2 Cache+300% | 3 MB (total) |
| L2 Cache | 6 MB (total)+2300% | 256 kB (per core) |
| Process | 45 nm | 32 nm-29% |
| Architecture | Harpertown (2007−2008) | Sandy Bridge (2011−2013) |
| PassMark | 2,044 | 2,055 |
| Geekbench 6 Single | 314 | — |
| Geekbench 6 Multi | 881 | — |
Memory & Platform
The Xeon E5420 uses the LGA771 socket (PCIe 2.0), while the Pentium G620T uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Xeon E5420 | Pentium G620T |
|---|---|---|
| Socket | LGA771 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR2-667 | — |
| Max RAM Capacity | 32 GB | — |
| RAM Channels | 4 | — |
| ECC Support | ✅ | — |
| PCIe Lanes | 32 | — |
Advanced Features
Virtualization: Yes (Xeon E5420) / not specified (Pentium G620T).
| Feature | Xeon E5420 | Pentium G620T |
|---|---|---|
| Integrated GPU | No | — |
| AVX-512 | No | — |
| Virtualization | Yes | — |
Value Analysis
The Xeon E5420 launched at $7214 MSRP, while the Pentium G620T debuted at $64. At current prices ($6500 vs $90), the Pentium G620T is $6410 cheaper. In terms of value (PassMark points per dollar), the Xeon E5420 delivers 0.3 pts/$ vs 22.8 pts/$ for the Pentium G620T — making the Pentium G620T the 194.6% better value option.
| Feature | Xeon E5420 | Pentium G620T |
|---|---|---|
| MSRP | $7214 | $64-99% |
| Avg Price (30d) | $6500 | $90-99% |
| Performance per Dollar | 0.3 | 22.8+7500% |
| Release Date | 2007 | 2011 |
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