A8-3520M vs Pentium G645
A8-3520M
Pentium G645
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 A8-3520M is positioned at rank 806 and the Pentium G645 is on rank 838, so the A8-3520M offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar A8-3520M
Performance Per Dollar Pentium G645
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | A8-3520M | Pentium G645 |
|---|---|---|
| Gaming | ❌ Lower gaming performance | ✅ Superior gaming performance |
| Workstation | ❌ Weaker in multi-core tasks | ✅ Better multi-core power |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
| Longevity | 🛑 Legacy (Llano (2011−2012) / 32 nm) | 🛑 Legacy (Sandy Bridge (2011−2013) / 32 nm) |
💎 Value Proposition
| Insight | A8-3520M | Pentium G645 |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($15) |
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 A8-3520M and Pentium G645
A8-3520M
The A8-3520M is manufactured by AMD. It was released in 2014-01-01. It is based on the Llano (2011−2012) architecture. It features 4 cores and 4 threads. Base frequency is 1.6 GHz, with boost up to 2.5 GHz. L3 cache: 0 kB. L2 cache: 1 MB (per core). Built on 32 nm process technology. Socket: FS1. Thermal design power (TDP): 35 Watt. Memory support: DDR3. Passmark benchmark score: 1,441 points. Launch price was $90.
Pentium G645
The Pentium G645 is manufactured by Intel. It was released in 2 September 2012 (13 years ago). It is based on the Sandy Bridge (2011−2013) architecture. It features 2 cores and 2 threads. Base frequency is 2.9 GHz, with boost up to 2.9 GHz. L3 cache: 3 MB (total). L2 cache: 256 kB (per core). Built on 32 nm process technology. Socket: LGA1155. Thermal design power (TDP): 65 Watt. Memory support: DDR3. Passmark benchmark score: 1,450 points. Launch price was $80.
Processing Power
The A8-3520M packs 4 cores / 4 threads, while the Pentium G645 offers 2 cores / 2 threads — the A8-3520M has 2 more cores. Boost clocks reach 2.5 GHz on the A8-3520M versus 2.9 GHz on the Pentium G645 — a 14.8% clock advantage for the Pentium G645 (base: 1.6 GHz vs 2.9 GHz). The A8-3520M uses the Llano (2011−2012) architecture (32 nm), while the Pentium G645 uses Sandy Bridge (2011−2013) (32 nm). In PassMark, the A8-3520M scores 1,441 against the Pentium G645's 1,450 — a 0.6% lead for the Pentium G645. L3 cache: 0 kB on the A8-3520M vs 3 MB (total) on the Pentium G645.
| Feature | A8-3520M | Pentium G645 |
|---|---|---|
| Cores / Threads | 4 / 4+100% | 2 / 2 |
| Boost Clock | 2.5 GHz | 2.9 GHz+16% |
| Base Clock | 1.6 GHz | 2.9 GHz+81% |
| L3 Cache | 0 kB | 3 MB (total) |
| L2 Cache | 1 MB (per core)+300% | 256 kB (per core) |
| Process | 32 nm | 32 nm |
| Architecture | Llano (2011−2012) | Sandy Bridge (2011−2013) |
| PassMark | 1,441 | 1,450 |
| Geekbench 6 Single | 255 | — |
Memory & Platform
The A8-3520M uses the FS1 socket (PCIe 2.0), while the Pentium G645 uses LGA1155 (PCIe 2.0) — making them incompatible on the same motherboard.
| Feature | A8-3520M | Pentium G645 |
|---|---|---|
| Socket | FS1 | LGA1155 |
| PCIe Generation | PCIe 2.0 | PCIe 2.0 |
| Max RAM Speed | DDR3-1333 | — |
| Max RAM Capacity | 16 GB | — |
| RAM Channels | 2 | — |
| ECC Support | ❌ | — |
| PCIe Lanes | 20 | — |
Advanced Features
Virtualization: AMD-V (A8-3520M) / not specified (Pentium G645). The A8-3520M includes integrated graphics (Radeon HD 6620G), while the Pentium G645 requires a dedicated GPU. Primary use case: A8-3520M targets Budget Laptop. Direct competitor: A8-3520M rivals Core i3-2330M.
| Feature | A8-3520M | Pentium G645 |
|---|---|---|
| Integrated GPU | Yes | — |
| IGPU Model | Radeon HD 6620G | — |
| Unlocked | No | — |
| AVX-512 | No | — |
| Virtualization | AMD-V | — |
| Target Use | Budget Laptop | — |
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