
Pentium D 820 vs Celeron 1020E

Pentium D 820

Celeron 1020E
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 Pentium D 820 is positioned at rank 1065 and the Celeron 1020E is on rank 951, so the Celeron 1020E offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium D 820
Performance Per Dollar Celeron 1020E
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium D 820 | Celeron 1020E |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | Equivalent pricing | Equivalent pricing |
| Longevity | 🛑 Legacy (NetBurst (2000−2006) / 90 nm) | 🛑 Legacy (Ivy Bridge (2012−2013) / 22 nm) |
💎 Value Proposition
| Insight | Pentium D 820 | Celeron 1020E |
|---|---|---|
| Cost Efficiency | ✅ Better overall value (+0%) | ❌ Lower cost efficiency |
| Upfront Cost | Equivalent pricing | Equivalent pricing |
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 Pentium D 820 and Celeron 1020E

Pentium D 820
The Pentium D 820 is manufactured by Intel. It was released in 2007-01-01. It is based on the NetBurst (2000−2006) architecture. It features 2 cores and 2 threads. Base frequency is 2.8 GHz, with boost up to 2.8 GHz. L3 cache: 0 kB. L2 cache: 2 MB. Built on 90 nm process technology. Socket: LGA775. Thermal design power (TDP): 95 Watt. Memory support: DDR1, DDR2, DDR3. Passmark benchmark score: 1,412 points. Launch price was $69.

Celeron 1020E
The Celeron 1020E is manufactured by Intel. It was released in 2007-01-01. It is based on the Ivy Bridge (2012−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.2 GHz, with boost up to 2.2 GHz. L3 cache: 2 MB (total). L2 cache: 256K (per core). Built on 22 nm process technology. Socket: G2. Thermal design power (TDP): 512 kB + 2 MB. Memory support: DDR3. Passmark benchmark score: 1,406 points. Launch price was $69.
Processing Power
Both the Pentium D 820 and Celeron 1020E share an identical 2-core/2-thread configuration. Boost clocks reach 2.8 GHz on the Pentium D 820 versus 2.2 GHz on the Celeron 1020E — a 24% clock advantage for the Pentium D 820 (base: 2.8 GHz vs 2.2 GHz). The Pentium D 820 uses the NetBurst (2000−2006) architecture (90 nm), while the Celeron 1020E uses Ivy Bridge (2012−2013) (22 nm). In PassMark, the Pentium D 820 scores 1,412 against the Celeron 1020E's 1,406 — a 0.4% lead for the Pentium D 820. L3 cache: 0 kB on the Pentium D 820 vs 2 MB (total) on the Celeron 1020E.
| Feature | Pentium D 820 | Celeron 1020E |
|---|---|---|
| Cores / Threads | 2 / 2 | 2 / 2 |
| Boost Clock | 2.8 GHz+27% | 2.2 GHz |
| Base Clock | 2.8 GHz+27% | 2.2 GHz |
| L3 Cache | 0 kB | 2 MB (total) |
| L2 Cache | 2 MB+700% | 256K (per core) |
| Process | 90 nm | 22 nm-76% |
| Architecture | NetBurst (2000−2006) | Ivy Bridge (2012−2013) |
| PassMark | 1,412 | 1,406 |
| Geekbench 6 Single | 166 | — |
Memory & Platform
The Pentium D 820 uses the LGA775 socket (PCIe 1.1), while the Celeron 1020E uses G2 (PCIe 3.0) — making them incompatible on the same motherboard. Maximum memory speed reaches DDR2-667 on the Pentium D 820 versus DDR3-1600 on the Celeron 1020E — the Celeron 1020E supports 40% faster memory, which can translate to measurable gains in memory-sensitive workloads. The Celeron 1020E supports up to 16 GB of RAM compared to 4 GB — 120% more capacity for professional workloads. Both feature 2-channel memory with ECC support. PCIe lanes: 0 (Pentium D 820) vs 16 (Celeron 1020E) — the Celeron 1020E offers 16 more lanes for additional GPUs or NVMe drives. Chipset compatibility: Intel 945,Intel 955 (Pentium D 820) and QM77,HM76 (Celeron 1020E).
| Feature | Pentium D 820 | Celeron 1020E |
|---|---|---|
| Socket | LGA775 | G2 |
| PCIe Generation | PCIe 1.1 | PCIe 3.0+173% |
| Max RAM Speed | DDR2-667 | DDR3-1600+50% |
| Max RAM Capacity | 4 GB | 16 GB+300% |
| RAM Channels | 2 | 2 |
| ECC Support | ❌ | ✅ |
| PCIe Lanes | 0 | 16 |
Advanced Features
Virtualization support: No (Pentium D 820) vs VT-x (Celeron 1020E). The Celeron 1020E includes integrated graphics (HD Graphics (Ivy Bridge)), while the Pentium D 820 requires a dedicated GPU. Primary use case: Celeron 1020E targets Budget. Direct competitor: Celeron 1020E rivals Pentium 2020M.
| Feature | Pentium D 820 | Celeron 1020E |
|---|---|---|
| Integrated GPU | No | Yes |
| IGPU Model | — | HD Graphics (Ivy Bridge) |
| Unlocked | — | No |
| AVX-512 | No | No |
| Virtualization | No | VT-x |
| Target Use | — | Budget |
Value Analysis
The Pentium D 820 launched at $241 MSRP, while the Celeron 1020E debuted at $86. At current prices ($20 vs $20), the Celeron 1020E is $0 cheaper. In terms of value (PassMark points per dollar), the Pentium D 820 delivers 70.6 pts/$ vs 70.3 pts/$ for the Celeron 1020E — making the Pentium D 820 the 0.4% better value option.
| Feature | Pentium D 820 | Celeron 1020E |
|---|---|---|
| MSRP | $241 | $86-64% |
| Avg Price (30d) | $20 | $20 |
| Performance per Dollar | 70.6 | 70.3 |
| Release Date | 2005 | 2013 |
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