
Pentium A1020 vs Phenom X3 8400

Pentium A1020

Phenom X3 8400
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 A1020 is positioned at rank 1009 and the Phenom X3 8400 is on rank 509, so the Phenom X3 8400 offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Pentium A1020
Performance Per Dollar Phenom X3 8400
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Pentium A1020 | Phenom X3 8400 |
|---|---|---|
| Gaming | ✅ Superior gaming performance | ❌ Lower gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ⚠️ Higher cost ($86) | ✅ More affordable ($0) |
| Longevity | 🛑 Legacy (Legacy / 22 nm) | 🛑 Legacy (Toliman (2008) / 65 nm) |
💎 Value Proposition
| Insight | Pentium A1020 | Phenom X3 8400 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ⚠️ Higher cost ($86) | ✅ 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 Pentium A1020 and Phenom X3 8400

Pentium A1020
The Pentium A1020 is manufactured by Intel. It was released in 2007-01-01. It features 4 cores and 4 threads. Base frequency is 2.41 GHz, with boost up to 2.7 GHz. L3 cache: 2 MB L2 Cache. Built on 22 nm process technology. Socket: FCBGA1170. Thermal design power (TDP): 10 Watt. Memory support: DDR3L-1333. Passmark benchmark score: 1,167 points. Launch price was $69.

Phenom X3 8400
The Phenom X3 8400 is manufactured by AMD. It was released in 2009-01-01. It is based on the Toliman (2008) architecture. It features 3 cores and 3 threads. Max frequency: 2.1 GHz. L3 cache: 2 MB (total). L2 cache: 512 kB (per core). Built on 65 nm process technology. Socket: AM2+. Thermal design power (TDP): 95 Watt. Passmark benchmark score: 1,164 points. Launch price was $149.
Processing Power
The Pentium A1020 packs 4 cores / 4 threads, while the Phenom X3 8400 offers 3 cores / 3 threads — the Pentium A1020 has 1 more core. Boost clocks reach 2.7 GHz on the Pentium A1020 versus 2.1 GHz on the Phenom X3 8400 — a 25% clock advantage for the Pentium A1020. The Phenom X3 8400 is built on the Toliman (2008) architecture. In PassMark, the Pentium A1020 scores 1,167 against the Phenom X3 8400's 1,164 — a 0.3% lead for the Pentium A1020. L3 cache: 2 MB L2 Cache on the Pentium A1020 vs 2 MB (total) on the Phenom X3 8400.
| Feature | Pentium A1020 | Phenom X3 8400 |
|---|---|---|
| Cores / Threads | 4 / 4+33% | 3 / 3 |
| Boost Clock | 2.7 GHz+29% | 2.1 GHz |
| Base Clock | 2.41 GHz | — |
| L3 Cache | 2 MB L2 Cache | 2 MB (total) |
| L2 Cache | — | 512 kB (per core) |
| Process | 22 nm-66% | 65 nm |
| Architecture | — | Toliman (2008) |
| PassMark | 1,167 | 1,164 |
Memory & Platform
The Pentium A1020 uses the FCBGA1170 socket (PCIe 3.0), while the Phenom X3 8400 uses AM2+ (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | Pentium A1020 | Phenom X3 8400 |
|---|---|---|
| Socket | FCBGA1170 | AM2+ |
| PCIe Generation | PCIe 3.0+50% | PCIe 2.0 |
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